Pm1000 Fm Transmitter User Manual

7/22/2019 Pm1000 Fm Transmitter User Manual

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DBELETTRONICA TELECOMUNICAZIONI S.p.A.

PM 1000 1 kW FM Broadcasting Transmitter - USERS MANUAL 1 /101

PM 1000

1 kW FM Broadcasting Transmitter

Users Manual

Release 1.0.1

- DB ELETTRONICA TELECOMUNICAZIONI S.p.A. -- Riviera Maestri del Lavoro 20/1 - 35127 Z.I. SUD PADOVA ITALY -- Ph. (049) 870-0588 - Fax. (049) 870-0747 -

- http://www.dbbroadcast.com -


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SAFETY NOTICES

WARNINGTo avoid risks of electrical shocks or fire, only qualified personnel should execute the procedures

specified in this manual.

WARNING

When the protective covers of any device or component connected to a 110 / 240 VAC source by a

power cord are removed, voltages and currents dangerous to life may be exposed.

WARNING

Contact with 110 / 240 Volts of alternating current and associated direct current and voltages can be

fatal.

DANGEROUS

RISK OF ELECTRICAL SHOCK DO NOT OPEN COVERS

CAUTION

To reduce the risks of electrical shock, do not remove the cover (or the back). Refer, for servicing,

to qualified service personnel. This installation should be done by a qualified person and should

comply with to all local applicable laws.

NOTICE: ALL THE SPECIFICATIONS AND TECHNICAL INFORMATION IN THIS MANUAL

ARE SUBJECT TO CHANGE WITHOUT NOTICE.


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INDEX1. PM1000 FM TRANSMITTER .............................................................................................. .................................. 4

1.1 GENERALDESCRIPTION ............................................................................................................... ................ 4

2. TECHNICAL SPECIFICATIONS ....................................................................................................................... 11

3. INSTALLATION ................................................................... .............................................................. ................... 13

3.1 FREQUENCYCHANGE .......................................................... ................................................................ ....... 143.2 ADJUSTMENTSANDMEASURES............................................................................................................... 163.3 EXTERNALCONTROLANDMEASURES .......................................................... ........................................ 17

3.3.1 SYSTEM CHECK SECTION ........................................................... .......................................................... 173.3.2 MEASURES / CONTROLS SECTION ...................................................................................................... 18

3.4 GENERALBLOCKDIAGRAMDESCRIPTION ........................................................................................... 20

4. AMPLIFIER SECTION ................................................................. ................................................................ ........ 21

4.1 GENERALDESCRIPTION ............................................................................................................... .............. 214.2

30WPREAMPLIFIER/DRIVERSTAGE ............................................................... ........................................ 21

4.3 AMP30PREAMPLIFIERPARTSLIST ...................................................................................... ................... 244.4 AMP300300WMODULEAMPLIFIER ............................................................. ............................................ 254.5 AMP300AMPLIFIERPARTSLIST................................................................................................................ 28

5. POWER SUPPLY STAGE ..................................................................... ............................................................... 32

5.1 GENERALDESCRIPTION ............................................................................................................... .............. 325.2 POWERSUPPLYBOARD04011-001PARTSLIST ......................................................... ............................. 365.3 RS-75-24SWITCHINGPOWERSUPPLY ..................................................................................................... 395.4 0601-008POWERSUPPLYBOARD ........................................................... ................................................... 425.5 POWERSUPPLYPARTLIST ............................................................. ............................................................ 44

6. MODULATOR STAGE ....................................................... ................................................................. ................. 45

6.1 GENERALDESCRIPTION ............................................................................................................... .............. 456.2 SINTEL96MODULATORBOARD ........................................................... ................................................... 466.3 MODULATORBOARDPARTSLIST ......................................................... ................................................... 53

7. PROTECTION BOARD ............................................................ .................................................................... ........ 56

7.1 PROTECTIONBOARDN1PARTLIST ................................................................................................ ....... 627.2 PROTECTIONBOARDN2PARTLIST ................................................................................................ ....... 70

8. METER STAGE ................................................................. .................................................................. .................. 71

8.1 GENERALDESCRIPTION ............................................................................................................... .............. 718.2 METERBOARDSPARTSLIST ..................................................................................................................... 76

9. IN-AUDIO BOARD ................................................................ ............................................................... ................. 78

9.1 IN-AUDIOBOARDPARTSLIST ...................................................... ............................................................. 809.2 IN-AUDIOBOARDJUMPERSSETTING ............................................................... ....................................... 81

10. TRANSMITTER OPTIONS .................................................................. ............................................................ 82

10.1 EXTERNALFREQUENCYCONTROL(/COPTION) ......................................................... ............................ 8210.2 EXTERNALFREQUENCYCONTROLPARTSLIST ................................................................ ................... 84

11. STEREO ENCODER BOARD (/S OPTION) ......................................................................................... ......... 85

11.1 CHANNELSPRE-EMPHASISSETTING ............................................................ .......................................... 8511.2 STEREOENCODERPARTSLIST ......................................................................................................... ........ 96

12. APPENDIX ............................................................... ............................................................... ............................ 99

12.1 APPENDIXA-XLRAUDIOCONNECTORSPINOUTS .............................................................................. 99

12.2 APPENDIXB-MOSFETREPLACEMENT ................................................................................................. 100


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1.PM1000 FM TRANSMITTER1.1 GENERAL DESCRIPTIONThe PM1000 is a complete FM broadcasting transmitter with continuously adjustable output power,

0 to 1050W. Made with MOSFET technology, can be used as stand-alone complete transmitter or

as driver for high power amplifiers.

On the PM1000 the use of MOSFET allows:

- Higher efficiency ( 85%);

- High gain (high transconductance and low internal reactive capacitance);

- High thermal stability (negative coefficient for drain current).

The output frequency range is between 87.5 and 108 MHz. Frequency setting is made using internal

dip switches or external selectors (/C option). The minimum frequency step is 10 kHz.

The transmitter has high frequency stability, due to the use of the Digital Phase Locked Loop

system and a very low drift reference quartz.


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An internal deviation limiter controls the maximum frequency deviation, thus avoiding adjacent

channel interference in case of accidental over modulation. In order to limit over modulation, it is

necessary to insert the jumper jp6 in the modulation board to enable the limiter.

Valuable characteristics of PM1000 include intelligent protections. Circuits to protec from load

mismatching (VSWR) and overtemperature (TEMP) allow to otain a very high reliability in all

conditions. Every alarm condition is monitored by means of front panel leds.

The front panel led bar enable the full, easy and fast verification of the main parameters and

condition of operation. The output power, the reflected power, the voltage supply of the poweramplifier, the frequency deviation, L&R audio level, and MPX are continuously monitored.

It is possible, using the front panel adjustments, to control the following settings: output power

(PWR adj.), frequency deviation (DEV adj.), transmitting frequency (option /C), manual/remote

control selection (option /R) and the mono/stereo selection (option /S).

An output 10th order elliptic LP filter ensures a pure RF spectrum, compatible with the most

stringent international requirements. As well, a high efficiency switching mode power supply

reduces the power consumption, and ensures reliable operation.


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PM 1000 1 kW FM Broadcasting Transmitter - USERS MANUAL

Fig. 1.1 - PM1000 TRANSMITTER FRONT VIEW

1) Overtemperature protection indicator 7) Contraves (option /C) 13) Mono/Stereo mode selector 192) Indicator of unbalancing between modules 8) RF monitor BNC connector 14) Forward power measure indicator 20

3) Power limiter indicator 9) Output power trimmer adj. 15) Reflected power measure indicator 21

4) VSWR protection indicator 10) Deviation trimmer adj. 16) Vpa voltage measure indicator

5) Remote shut-down indicator 11) Lock frequency indicator 17) Ipa current measure indicator

6) Indicator of the on/off transmitter state 12) Manual/Remote selector 18) Frequency deviation measure indicator


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PM 1000 1 kW FM Broadcasting Transmitter - USERS MANUAL

Fig. 1.2 PM1000 TRANSMITTER REAR VIEW

1) RF output DIN 7/16 connector 7) SCA2 input BNC connector 13) MPX input level adj. 19

2) Mains power supply connector 8) SCA2 level adj. 14) MPX input BNC connector 20

3) Mains On/Off switch 9) Left channel (or mono) input level adj. 15) SCA1 level adj.

4) Remote control DB25 connector 10) Left channel (or mono) input XLR connector. 16) SCA1 input BNC connector

5) SCA3 input BNC connector 11) Right channel input level adj. 17) MPX Out BNC connector

6) SCA3 level adj. 12) Right channel input XLR connector 18) AUX input BNC connector


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D ELETTRONICA TELECOMUNICAZIONI S.p.A.


Fig. 1.3 PM1000 TRANSMITTER TOP VIEW

1) Blower 6) Remote control board

2) Output filter 7) Protection board (controls)

3) Output coupler 8) Protection board (panel)

4) AMP300, 300 W amplifier boards

5) Switching power supply board


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Fig. 1.4 PM1000 TRANSMITTER BOTTOM VIEW

1) Sintel 96 modulator board 5) Power supply board 0601-008

2) Coder stereo board 6) Measure boards

3) Contraves board (/C option) 7) AMP30, 30 W pre-amplifier board

4) Power supply board RS 75-24


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2.TECHNICAL SPECIFICATIONSRF SPECIFICATIONSOperating frequency range .......................................................................................... 87.5 to 108 MHz

Operating frequency setting ................................ synthesised with internal dip switches, 10 kHz step

..................................................................................... synthesised by front panel switches (/C option)

Output impedance .......................................................................................................................... 50

Output connector ................................................................................................................................. N

Output power...................................................................................................................... 0 to 1050 W

Power tolerance ...........................................................................................................................1 dB

Harmonics .................................................................................................................................-68 dB

Spurious ....................................................................................................................................-80 dB

Syncro AM modulation .............................................................................................................-55 dBAsyncro AM modulation ..........................................................................................................-60 dB

Frequency stability

Thermal drift (0 to 50 C) .......................................................................................................250 Hz

Aging drift .....................................................................................................................300 Hz / year

MODULATION

Mono operation

Input level -6 to +10 dBm

Input connector ............................................................................................................... XLR balanced

Input impedance ........................................................................................................................... 600 Bandwidth ( 0.25 dB) ................................................................................................. 20 Hz to 15 kHz

Attenuation of frequencies 19 kHz .........................................................................................50 dB

Preemphasis .......................................................................................................................... 50/75 sec

S/N ratio ( 75 kHz peak dev. with 1 kHz input, 50s de-emphasised) ....................................75 dB

THD+N ( 75 kHz peak dev. with 1 kHz input, unweighted) .....................................................0.1%

Stereo operation (with stereo coder included in /S model)

L & R input level ............................................................................................................ -6 to +10 dBm

Input connectors .............................................................................................................. XLR balanced

Input impedance .......................................................................................................................... 600

Bandwidth ( 0.25 dB) ................................................................................................. 20 Hz to 15 kHzAttenuation of frequencies 19 kHz .........................................................................................50 dB

Preemphasis .......................................................................................................................... 50/75 sec

S/N ratio ( 75 kHz peak dev. with 1 kHz input, 50s de-emphasised) ....................................70 dB

THD+N ( 75 kHz peak dev. with 1 kHz input, unweighted) .....................................................0.1%

Stereo separation ........................................................................................................................60 dB


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Stereo operation (with external stereo coder /S option)

MPX input level ............................................................................................... 2.2 Vpp per 75 kHz dev

Input connector ............................................................................................................................. BNC

Input impedance ........................................................................................................................... 10 k

Bandwidth ( 0.25 dB) ............................................................................................... 20 Hz to 100 kHz

MEASURES

Forward power

Reflected power

Vpa units supply

Ipa total of all amplifier units

Deviation

L/R level

PROTECTIONThe internal logic circuitry provides proportional feedback protection, without on-air interruptions,

for:

- VSWR

- air over-temperature

- insufficient cooling

- fault of RF stages

AC POWER REQUIREMENTS

Operating voltage ............................................................................... 115/230 VAC 10 %, 50/60 Hz

Power consumption ................................................................................................................. 1760 VABattery operation (option /VDC) .................................................................................... 48 VDC, 38 A

OPERATING CONDITIONS

Cooling .......................................................................................................... forced air by internal fans

Service ...................................................................................................................... continuous 24/24h

Temperature range ........................................................................................................... -5to +45C

Humidity ................................................................................................................................ 95% max.

Max. Installation altitude .................................................................................................. 4000 m a.s.l.

WEIGHT AND SIZEWeight ........................................................................................................................................... 48 kg

Dimensions (W x H x D) ..................................................................................... 483 x 136 x 522 mm

OPTIONS

External frequency setting (/C)

Stereo coder (/S)

Audio processor (/P)

Remote control (/R)

Battery operation (/VDC)


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3.INSTALLATIONTo install the PM1000:

1. Connect an antenna or a dummy load to the RF output connector.2. Verify the correct main supply voltage (230 VAC or 115 VAC).3. Control that the main ON/OFF switch on the rear panel is in the OFF position (labelled 0).4. Connect the transmitter to the main power supply using the power cord included.5. Switching ON the transmitter: on the front panel (Fig. 1.1) you will see the MAINS led ON.6. Control that the LOCK led (Fig. 1.1) on the front panel lights up a few seconds after the power

is turned on.

7. Select the FWD setting, using the Measure select button (Fig. 1.1).Adjust, looking at the front panel meter, the output power by means of the PWR potentiometer

on the front panel (Fig. 1.1).

WARNING:The transmitter can work properly within 10 % of the nominal main supply voltage

and is designed to support main supply spikes, although it is preferable to use the main voltage

stabilisers to reduce the risk of damage.


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3.1 FREQUENCY CHANGE1. Lower the output power to its minimum level.2. If the exciter is equipped with the EXTERNAL FREQUENCY SETTING option (/C) the

selection of the frequency is immediate using the front panel CONTRAVES (Fig. 1.1).

The weights of the contraves numbers are as follows;

3. If the transmitter has internal frequency setting, to change frequency open the cover of the Sintel96 modulator board (see Fig. 1.4) and use the internal dip-switches. The weight of the internal dip-

switches is indicated on the next page. To find the correct dip-switches configuration corresponding

to the needed FM channel, please refer to the following example with 98 MHz frequency.

4 - Put every dip-switches in the ON position.

5 - Select the OFF position for the dip-switch with the maximum weight, lower than or equal to the

frequency wanted (for example f0= 98 MHz put on OFF the 81.92 MHz switch).

6 - Select 98 - 81.92=16.08 MHz, the minimum weight, lower than or equal to 16.08 MHz, is 10.24

MHz; now put off the corresponding switch.7 - Select 16.08 - 10.24 = 5.84 MHz, the minimum weight, lower than or equal to 5.84 MHz, is 5.12

MHz, now put off the corresponding switch.

8 - Select 5.84 - 5.12 = 0.72 MHz, the minimum weight, lower than or equal to 0.72 MHz, is 0.64

MHz, then put off the corresponding switch.


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9 - Select 0.72 - 0.64 = 0.08 MHz, there is a weight equal to 0.08 MHz, so put in OFF position the

corresponding switch to complete the setting.

The final configuration is:

10 - Adjust the desired output power using the PWR front panel potentiometer.


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3.2 ADJUSTMENTS AND MEASURESAF INPUTS DEVIATION ADJUSTMENT

For the Left and Right input signals (/S option) use the corresponding XLR female connectors on

the rear panel. The input impedance is 600 .

The transmitter accepts, adjusting input trimmers, input signal levels from -6 dBm to +10 dBm for a

75 kHz peak deviation.

For Mono input signal (PM1000 without inner stereo generator) the input female XLR connectorhave the same input levels than the stereo amplifier.

For MPX input signal (PM1000 without inner stereo generator) the BNC input connector, labelled

MPX (10 kinput impedance), accepts a 0 dBm for 75 kHz peak deviation input level.

For SCA signals (>53 kHz) use BNC input connectors (1 kinput impedance) (Fig. 1.2): the input

level for a correct deviation of the main carrier (1.25 kHz peak) is 2.2 Vpp. To adjust the peakdeviation of the main carrier use the DEV front panel potentiometer (Fig. 1.1): look at the front

panel meter and select the DEV measurement by means of the selection button READINGS

SELECTOR (Fig. 1.1).


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3.3 EXTERNAL CONTROL AND MEASURES3.3.1 SYSTEM CHECK SECTIONSee Fig. 1.1

On the front panel there is a section labelled SYSTEM CHECK which allows monitoring of all

the main functions and protections of the transmitter.

ON led:It shows the on/off state of the transmitter, thus the presence of a main power supply.

OVERHEAT led:It indicates that the overtemperature protection is on. This protection does

not need a RESET because it restores the normal working conditions automatically when the

temperature goes back to normal values.

VSWR led: It shows that the VSWR protection is active. This intelligent protection is

characterised by an automatic reset delayed by about 2-3 seconds to avoid the risk of accidental

intervention. This autoreset tries to resume to normal operation only 3-4 times, then turns off the

transmitter definitively.

REMOTE SHUT-DOWN led: It is enable if the amplifier has the /R option.

When it is light on, shown that power output has zero worth because of a remote external

impulse.

UNBAL led:It shows the unbalancing between the two AMP300 amplifier modules, thus an

equipment malfunction.


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3.3.2 MEASURES / CONTROLS SECTIONOn the front panel (Fig. 1.1) there is a 40 leds meter bar (see Fig. 1.1) which displays the most

important parameters of the transmitter. The push-button labelled MEASURE SELECT selects

the measure type, as indicated by one of the leds below the bar.

You can visualise 6 parameters:

- FWD measure displays the output power (f.s. 1200W).- REFL measure displays the reflected power (f.s. 120W).- Vpa measure displays the bias of final transistors (f.s. 60V).- Ipa measure displays the absorbed current of final transistors (f.s. 60A).- DEV measure displays the peak deviation of modulated carrier (f.s. 200KHz).- L/R measure displays the input audio level. (the meter bar is split in two parts, one for each

audio channel).

LOCK led: shows the correct lock of the frequency synthesis circuit (PLL) on the modulator

board.

STEREO led: shows the use of the internal stereo generator board (if present). This led is

related to the switch (Fig. 1.1) labelled STEREO/MONO which allows selection of the type of

signal to be modulated. The mono signal is obtained by a semi-sum of the left and the right

signals for the PM1000. If the internal stereo generator board is not present, the switch

mentioned above and the corresponding LED are unused.

REMOTE led: indicates if the operation of the transmitter can be remote controlled. This

selection is made using the switch REMOTE/MANUAL. This switch and the relative led will

be unused if the transmitter is not equipped with the remote control board option.


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Fig.3.1 PM1000 GENERAL BLOCK DIAGRAM


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3.4 GENERAL BLOCK DIAGRAM DESCRIPTIONThe general block diagram (see Fig.3.1) consists of the following blocks:

A) PM1000 RF Amplifier Stage delivers the 1050W output power.It is realised by means of the following modules:

1) AMP30 (DB 0110_010A) preamplifiers/driver stage for delivering about 24 W RF power.

2) Input splitter (DB 9701_001+DB 9702_007) that divide the 24 W in four equal parts to driving

the four AMP300 final amplifiers.

3) Four AMP300 300 W MOSFET technology amplifiers (DB 9812_001).

4) Output coupler (DB 9702_008+9701_002A) for combining the four 300W stage outputs and toobtain the full output power.

5) Output low-pass filter (DB 9901_001) and directional coupler (DB 9901_005) for

spurious and harmonic filtering and for forward and reflected output power monitoring.

B) Protection and control board (DB 9601-002) for monitoring and controlling all principal

transmitter parameters.

C) PM 1000 Power Supply Stage. For driving the RF section there is a mains switching board,

giving the correct power supply (45V) for each 300W RF amplifiers. An other switching module

(DB 0206_090) is dedicated for protection and control board, meter stage, Modulator board,

AMP30 Driver stage and all optional boards.

D) PM1000 Meter stage display on a 40 LED scale all major transmitter parameters.

E) SINTEL 96 modulation board allows a high quality direct carrier modulation accepting a

composite stereo (MPX) coming from Stereo encoder (/S option) or a mono input signal with up to

3 SCA subcarriers (for example RDS, ARI, ...).

F) Stereo encoder board (/S option) generates a composite MPX signal for the modulation board

from R and L audio channel.

G) Stereo audio processor (/P option) performs a high quality sound compression.

H) Remote control board (DB 9702-006).


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4.AMPLIFIER SECTION4.1 GENERAL DESCRIPTIONThe PM1000 amplifier stage is realised with a preamplifier/driver module (Fig. 4.2) and four 300 W

RF MOSFET amplifier modules (see Fig. 12.1). The input signal from the Sintel 96 is amplified to

about 24 W (through the AMP30 module) and then splitted (through a splitter board) in four equal

parts for driving the four AMP300 FM MOSFET amplifier modules. The output power of the four

AMP300 (about 250W) is then coupled (through a coupler board) and filtered by means of an

appropriate low pass filter.

At the output of the low pass filter there is a directional coupler for forward and reflected power

monitoring.

4.2 30 W PREAMPLIFIER/DRIVER STAGEThe amplifier stage is realized by the new 30W MOSFET amplifier board (DB 0110_010A). This

board is basically composed of four amplification WIDE BAND stages.

The first stage uses a BFQ19 transistor to amplify the input level. The second and the third

transistors are 2N4427. The last amplification stage uses a BLF245 MOSFET to obtain an output

RF power 30 W maximum.

The P3 trimmer (see Fig. 4.2) in the AMP30 board allows to adjust the mosfet bias current.

.An external panel trimmer and the P2 trimmer in the AMP30 board allows to adjust the

output power.

The AMP30 board is equipped with an initial 5-6 seconds delay to avoid accidental out of

band emissions in the initial PLL locking period.


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Fig. 4.1 - AMP30 PRE AMPLIFIER ELECTRICAL SCHEMATIC


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Fig. 4.2 - AMP30 PRE AMPLIFIER COMPONENT LAYOUT (DB 0110_010A)


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4.3 AMP30 PRE AMPLIFIER PARTS LISTITEM QUANTITY REFERENCE PART

_____________________________________________________________________________2 1 C1 47uF 35V p=3.5mm =8mm

3 5 C2,C7,C9,C35,C59 100uF 25V p=2.5mm =6,5mm4 7 C3,C4,C5,C23,C24,C39,C51 10nF X7R 12065 3 C6,C53,C65 10nF COG 12106 4 C11,C12,C36,C37 100pF COG 12068 1 C16 47pF TEKELEC 1210

9 4 C20,C32,C40,C42 10uF 25V p=2.5mm =5,5mm10 2 C30,C21 100nF X7R 120611 4 C27,C28,C29,C33 1nF X7R 120612 3 C31,C34,C52 1nF COG 120613 1 C38 10pF TEKELEC 121014 1 C41 330pF COG 1206

15 2 C54,C44 1nF TEKELEC 121016 1 C45 33pF TEKELEC 1210

17 1 C50 100uF 35V p=3.5mm =8mm18 1 C55 82pF TEKELEC 121019 1 C57 3p3F TEKELEC 121020 1 DZ1 5V1 ZENER SOD8021 2 D2,D1 LL4148 DIODO MMELF26 6 L1,L2,L5,L9,L11,L12 VK200 TRAD VK200SMD27 1 L3 15nH SMD 121028 3 L6,L7,L10 CU x BOBINE IN ARIA33 2 P2,P3 5K SMD 1GRV 5x5mm34 1 Q1 BFQ19 SMD SOT8935 1 Q2 BDX53 TRAD TO220

36 1 Q3 2N3866 / 2N4427 TO20537 1 Q4 2N4427 TRAD TO20538 1 Q5 BLF245 SMD SOT123A39 1 Q6 BC857 SMD SOT2340 3 R1,RX,R0 0 1/4W R401041 1 R2 100 SMD 120642 2 R14,R3 1K5 SMD 1206

43 1 R4 100 2W P=16mm =4mm44 1 R5 22K SMD 120645 3 R6,R8,R42 1K SMD 120646 1 R7 56 SMD 120647 1 R7A 47 SMD 120648 4 R10,R12,R15,R16 300 SMD 1206

49 1 R11 18 SMD 120650 1 R13 150 SMD 120651 1 R17 10 SMD 120652 3 R20,R21,R24 10K SMD 120653 1 R22 220K SMD 120654 1 R23 100K SMD 120655 2 R43A,R43 220 SMD 120656 1 R44 2K7 SMD 1206

57 1 R59 220 4W P=20mm =5mm58 1 U1 LM7815 TRAD TO22059 1 U2 NE555 SMD SO08


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4.4 AMP300 300 W MODULE AMPLIFIERThe amplifier is realized with MOS transistors, Philips BLF278 or equivalent.

The technical data (for class C operation) are the following:

- 87.5 - 108 MHz frequency range

- 43 Vds Supply voltage between drain and source

- 75% minimum efficiency (78% typical)

- 300 W Output Power with 17 dB minimum gain (18 typical)


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Fig. 4.3 - AMP300 AMPLIFIER ELECTRICAL SCHEMATIC


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Fig. 4.4 - AMP300 AMPLIFIER COMPONENT LAYOUT (DB 9812_001)


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4.5 AMP300 AMPLIFIER PARTS LISTITEM QUANTITY REFERENCE PART___________________________________________________________________________________

1 1 CS1 DB971202 STAMPATO2 1 CS2 DB9812_001 STAMPATO3 1 C1 150pF CER4 1 C2 56pF CER5 2 C3,C8 100nF 200V TEKELEC6 1 C10 5,6pF HQ TEKELEC7 3 C5,C6,C7 1nF HQ300V TEKELEC8 1 C9 1nF MQ TEKELEC9 1 C4 10nF 200V TEKELEC10 1 DZ1 3V9 ZENER

11 1 D1 1N414813 1 J2 C.S.9704_015 STAMPATO15 1 L1 6 TURNS 17cm 0.8RS16 1 L2 FERR2TUBE17 1 Q1 BLF27818 2 R1,R2 22K 1206 SMD19 2 R3,R4 5K6 1206 SMD20 1 R5 150K 1206 SMD21 4 R6,R7,R8,R9 22R 4W22 2 TP1,TP2 CPFXCS FASTON23 1 TR1 2TUBEOTTx2cm+TEFLON RSx20cm


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Fig. 4.5 - INPUT SPLITTERS (DB 9701_001 + DB 9702_007)


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Fig. 4.6 - OUTPUT COUPLERS (DB 9702_008 +DB 9701_002A)


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Fig. 4.7 - OUTPUT LOW PASS FILTER (DB 9901_001)

Fig. 4.8 - DIRECTIONAL COUPLER (DB 9901_003)


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5.POWER SUPPLY STAGE5.1 GENERAL DESCRIPTIONThe PM1000 transmitter power supply is composed of the following elements:

1 mains switching board delivering 45V/60A in continuous operation. This module gives thecorrect voltage to supply the MOSFET power amplifiers (DB 9812_001).

2 switching modules capable of 12 VDC (6A max) and +24 VDC (10A max) to power supplythe Protection and control boards, meter stage, Sintel 96 modulator board, AMP30 Driver stage

and all optional boards present.

The switching-mode power supply provides:

1. the efficiency is 80% higher hence provides a considerable reduction of the internal heating, thussimplifying the cooling system;

2. a lower thermal and mechanical stress for associated components, such as transformer, diodes,rectifier bridges is inflicted;

3. the power supply voltages at the output of the switching regulators are constant even in case ofwide main fluctuations (15 %).


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Fig. 5.1 MAINS SWITCHING BOARD LAYOUT


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Fig. 5.2 POWER SUPPLY 04011-001 ELECTRICAL DIAGRAM (1)


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Fig. 5.3 POWER SUPPLY BOARD 04011-001 ELECTRICAL DIAGRAM (2)


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5.2 POWER SUPPLY BOARD 04011-001 PARTS LISTItem Quantity Reference Part________________________________________________________________________

1 50 T1,PG2,CV3,L6,C6,C7,C8, TAR TARR9,R14,JP20,JP22,D25,D26,Q29,Q30,C49,C53,D82,D83,D84,R85,D85,R86,D86,R110,R112,C113,C117,C119,R159,R225,R226,R227,R228,R229,R234,R235,R240,R241,R246,R247,R248,R249,R257,R260,R261,R262,R263,R264,R265

2 1 CX1 220n CPU2263V005PM3 4 CX2,CX3,CX4,C106 10n CP10N63V005PM4 4 Cb1,Cb2,Cb3,Cb4 2.2n CP2N263V005PM5 6 C1,C51,C59,C60,C111,C112 1u CC01U50V005PM6 7 C4,C12,C13,C26,C43,C104, 0.1u CP0U163V005PM

C105

7 1 C5 470n CPU4763V005PM8 2 C68,C9 330n X2 CXU33K2522P5M9 1 C10 1u X2 CX01UK2527P5M10 1 C14 47p CC47P50V005PM11 1 C15 2.2u 400V CH2U20K427P5M12 6 C16,C17,C18,C19,C20,C84 4n7 Y1 CY4N70K412P5M13 2 C58,C21 1n CP01N63V005PM14 2 C22,C77 10u 35V CV10U35V005DM15 1 C38 10n 1kV CC10N01K010PM16 2 C79,C39 0.1u 630V CP0U1K6322P5M17 1 C41 220u 35V KVL2235V008DM18 1 C50 1.5n CC1N550V005PM19 2 C52,C54 2.2n CC2N20K1005PM20 1 C55 330p CCN3350V005PM21 1 C56 47n CC47N63V005PM22 4 C57,C61,C66,C67 4.7u 35V CV4U735V004DM23 1 C62 33n CP33N63V005PM

24 1 C63 3.3n CP3N363V005PM25 2 C65,C64 470u/450 CVL47K45035DM26 1 C69 1u 63V CP01U63V005PM27 2 C80,C81 2.2n 2KV CC2N202K005PM28 1 C92 220p CPN2263V005PM29 2 C108,C109 470u 35V KVL4735V010DM30 4 C114,C115,C116,C118 0.15u cp 100V ps531 31 DX1,D4,D6,D11,D12,D13, 1N4148 DP1N4148

D14,D16,D34,D36,D37,D40,D41,D42,D43,D44,D45,D46,D47,D51,D52,D53,D54,D55,D56,D57,D58,D59,D63,D67,D69

32 13 D3,D5,D48,D60,D73,D89, 18V DZ18V-0W5D90,D91,D92,D93,D94,D95,D96

33 1 D18 BA159 DPBA15934 1 D19 BYV26C DPBYV26C35 1 D38 ISL9R1560G2 DMISL9R1560G236 2 D49,D61 43V 1W DZ43V-1W37 2 D50,D62 SB140 DPSB14038 1 D65 BAT85 DPBAT8539 1 D87 MUR 1640CT40 1 FR1 04011-001-FR1 220G - FR141 5 JP1,JP6,JP17,JP26,JP27 STREEP1 CTST40PM0911D


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Item Quantity Reference Part_________________________________________________________________________

42 1 JP2 STREEP2 CTST40PM0911D43 1 JP4 HEADER 1744 1 JP5 HEADER 4

45 2 JP11,JP10 dado a gabbia MR01450446 1 JP16 MOLEX 2PIN CT0528132102147 6 JP18,JP19,JP21,JP29,JP30, FASTON 90 MRFASTON1790G

JP3148 1 JP23 HEADER 1449 1 JP28 SAURO 2VIE MRMSE02P00V50 1 K2 12V/10A RL012DC10A02S151 2 L1,L8 VE DL02040652 2 L3,L2 220G - L1 114uH/11A53 2 L4,L5 220G - L3 113uH/25A54 1 L7 RO DL02040455 2 OP3,OP2 CNY17-3 OCCNY17-356 1 PG1 GBPC3510W PRFB3510W57 1 Q2 BD140 TRBD14058 1 Q3 STP4NB80 STP4NB8059 2 Q6,Q25 BC237 TRBC23760 1 Q10 VN2222L PMVN2222L61 4 Q11,Q12,Q13,Q14 HGTG20N60A4D IGHGTG20N60A4D62 2 Q15,Q16 HGTG20N60A4 IGHGTP20N60A463 1 Q17 BC327 TRBC32764 1 Q18 ZTX653 TRZTX65365 4 Q19,Q20,Q22,Q23 ZTX953 TRZTX95366 2 Q24,Q21 IRFD110 PMIRFD11067 3 RV1,RV2,RV3 S14K275 VS1427571075J68 1 RX1 22K RC022KW12J69 1 R1 365K RM365KW25F70 1 R2 348K RM348KW25F71 1 R4 470K 1 RM470K01WK72 1 R5 6.8K 0.5 RC06K80W5J73 1 R6 15K 1/8 RC015KW12J74 1 R7 150K RC150KW25J75 1 R8 3K90 1/8 RM03K9W12F76 1 R10 1K8 1/8 RC01K8W12J

77 1 R11 1K PTO001K010B78 6 R12,R130,R131,R140,R141, 1K 1/8 RC001KW12JR164

79 1 R15 1.3K 1/8 RM01K3W12F80 2 R16,R17 10 RC010RW25J81 6 R18,R75,R76,R77,R78,R79 10K RC010KW25J82 1 R19 47 7 RF047R07WK83 2 R118,R24 47K 1/8 RC047KW12J84 3 R25,R100,R101 3K3 1/8 RC03K3W12J85 4 R26,R98,R158,R251 10K 1/8 RC010KW12J86 1 R27 150K 1/8 RC150KW12J87 1 R28 1M RC001MW25J88 1 R63 0.68 1 RM0R6801WK89 1 R65 6.8K 1/8 RC06K8W12J90 9 R66,R74,R122,R128,R129, 100 1/8 RC100RW12J

R133,R138,R139,R14391 1 R73 220K 1/8 RC220KW12J92 3 R80,R223,R224 56K 2 RM056K02WK93 2 R93,R92 270K RC270KW25J94 1 R94 12 RC012RW25J95 3 R99,R103,R175 2K2 1/8 RC02K2W12J96 2 R111,R102 13K 1/8 RM013KW12F97 1 R104 100K 1/8 RC100KW12J98 1 R105 270 RC270RW25J


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Item Quantity Reference Part__________________________________________________________________________

99 2 R106,R123 4K7 1/8 RC04K7W12J100 2 R252,R109 27K 1/8 RC027KW12J101 1 R119 178K RM178KW25F

102 1 R120 200K RM200KW25F103 1 R121 2.37K 1/8104 4 R124,R125,R134,R135 33 RC033RW25J105 4 R126,R127,R136,R137 2.2 RC02R2W25J106 2 R142,R132 2K2 0.5 RC02K20W5J107 1 R152 3.3K 1/8 RC03K3W12J108 2 R156,R157 47 4 RC047R04WK109 1 R160 680 1/8 RC680RW12J110 1 R167 330 1/8 RM330RW12F111 1 R168 820 1/8112 2 R169,R170 1.8K 1/8 RC01K8W12J113 1 R199 39 RC039RW25J114 1 R219 22 RC022RW12J115 12 R230,R231,R232,R233,R236, 10m 1 RA0R0101WJ

R237,R238,R239,R242,R243,R244,R245

116 1 R250 2.7K 1/8 RC02K7W12J117 2 R259,R258 56K 1/8 RC056KW12J118 1 R266 680 2 RM680R02WK119 1 TA1 220G - TA1 1 : 56120 1 TA2 LEM LA 55-P121 1 T2 220G - T2 E 32/16/9122 2 T4,T3 220G - T3 r1 EFD 15123 2 U14,U1 TL431 VRTL431N124 12 U2,U3,U12,U13,U20,U21, BOLLA LS

U24,U26,U27,U30,U32,U33125 1 U7 LM7812CT VRLM7812CT126 1 U11 ML4826CP2 CIML4826CP2127 1 U29 LM393 CILM393


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5.3 RS-75-24 SWITCHING POWER SUPPLY

This switching power supply board converts the input voltage from the mains to +24VDC to feed

the boards inside the CLU unit.

RS 75-24 CHARACTERISTICS

OUTPUT

DC voltage 24V

Rated current 3.2A

Current range 0 3.2A

Rated Power 768W

Ripple & noise (max) 120mVp-p

Voltage ajd range 22 27.6V

Voltage tolerance 1.0%

Line regulation 0.5%

Load regulation 0.5%

Setup, rise, hold time 500ms, 30ms, 50 ms/230VAC

1200ms, 30ms, 12ms/115VAC at full load

INPUT

Voltage range 88 264 VAC

Frequency range 47 63 Hz

Efficiency 85%

AC current 2A/115VAC 1.2A/230VAC

Inrush current (max) Cold start 40A/230VAC

Leakage current


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PROTECTION

Overload 110 - 150% rated output power

Over voltage 27.6 32.4 V

Protection type: Hiccup mode, recovers

automatically after fault condition is removed

ENVIRONNEMENT

Working temperature -25 +70C

Working humidity 20 90 % RH not condensing

Storage temperature, humidity -40 +85 C, 10 95% RH

Temp. Coefficient 0.03%/C (050C)

Vibration 10 500 Hz, 5G 10min/1cycle, period for 60 min.

each along X,Y,Z axes

OTHERS

MTBF 265 Khrs min

Dimension 129/97/38 mm (L/W/H)

Weight 0.41 kg


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5.4 0601-008 POWER SUPPLY BOARDThe protection and measure boards are supplied with an independent power supply boards that

furnish the +/- 12 Volts and +/- 5 Volts to the two boards. It is positioned near the display board.

Fig. 5.4 POWER SUPPLY FOR MEASURE BOARD LAYOUT (DB 0601_008)


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Fig. 5.5 POWER SUPPLY FOR MEASURE BOARD ELECTRICAL DIAGRAM

IN

GND

OUT

U4

7905

79XXTO220

L4

150

H

IND

_TOR

_P

C23

100n

F

CC

_B

-5V

+

C4

470

F63VROE

CE

_D

R7

3K3

R1/4W

+12V

R4

9K11%

R1/4W

R8

2K2

R1/4W

U1

L4971

DIP8

1

5

24

6

3

87

GND

VCC

SS

_INH

OUT

BOOT

OSC

FB

COMP

+

C16

100

F25V

CE

_E

+

C13

330

F35V

CE

_B

R5

1K

TRIM

_PTH

_V

CN3

MSQ03001

MSQ03001

1 2 3

R11

1K

R1/4W

R9

8K2

R1/4W

C18

100n

F

CC

_B

+5V

R2

10K

R1/4W

-12V

1

Ru

bens

Ra

ffagna

to

1

1

30-1

2-2

005

Alimen

tatorepersc

he

dam

isure

DB0601

_008

Name

Da

te

Rev

Shee

t

of

Pro

jec

tName:

No

te:

Pro

duc

tCo

de:

Doc.:

Draw

ing

Approve

d

+5V

C11

3.3

nF

CP

_A

+48V

D5

SB360

D2

C14

220n

F

CP_

B

-12V

-12V

+12V

+

C19

10

F35V

CE

_A

+

C22

10

F35V

CE

_A

C10

220n

F

CP

_A

C20

100n

F

CC

_B

L3

150

H

IND

_TOR

CN2

MSQ03001

MSQ03001

1 2 3

+

C12

470

F63VROE

CE

_D

D3

SB360

D2

D8

1N5819

1N5819

+C2

1

F50V

CE

_A

C21

100n

F

CC

_B

IN

GND

OUT

U3

7805

78XXTO220

D7

LEDVERDE

LED

_5MM

+48V

R3

2K2

R1/4W

D2

LEDVERDE

LED

_5MM

R6

NC

R1/4W

L2

150

H

IND

_TOR

_P

C1

3.3

nF

CP

_A

C9

22n

F

CP

_A

R101K

TRIM

_PTH

_V

+

C15

100

F25V

CE

_E

+12V

CN

1

MSQ02001

MSQ02001

1 2

C8

220p

F

CC

_A

C5

220n

F

CP

_B

D4

SB360

D2

+

C17

100

F25V

CE

_E

R12

NC

R1/4W

+C6

330

F35VROE

CE

_B

U2

LM2591

1 5

2

4

3

Vin

ON/OFF

Ou

tFeedback

GND

+

C3

100

F25V

CE

_E

L1

270

H

IN

D_

TOR

C7

220n

F

CP

_B

D6

1N4007

1N4007

D1

SB360

D2

R1

20K

R1/4W

+48V

-5V


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5.5 POWER SUPPLY PART LISTITEM QUANTITY REFERENCE PART

1 1 CN1 MSQ02001 MSQ020012 2 CN3,CN2 MSQ03001 MSQ030013 2 C1,C11 3.3nF CP_A4 1 C2 1F 50V CE_A5 4 C3,C15,C16,C17 100F 25V CE_E6 2 C12,C4 470F 63V ROE CE_D7 2 C14,C5 220nF CP_B8 1 C6 330F 35V ROE CE_B9 1 C7 220nF CP_B10 1 C8 220pF CC_A11 1 C9 22nF CP_A12 1 C10 220nF CP_A13 1 C13 330F 35V CE_B

14 4 C18,C20,C21,C23 100nF CC_B15 2 C19,C22 10F 35V CE_A16 4 D1,D3,D4,D5 SB360 D217 2 D7,D2 LED VERDE LED_3MM18 1 D6 1N4007 1N400719 1 D8 1N5819 1N581920 1 L1 270H IND_TOR21 2 L2,L4 150H IND_TOR_P22 1 L3 150H IND_TOR23 1 R1 20K R1/4W24 1 R2 10K R1/4W25 2 R3,R8 2K2 R1/4W26 1 R4 9K1 1% R1/4W

27 2 R5,R10 1K TRIM_PTH_V28 1 R7 3K3 R1/4W29 1 R9 8K2 R1/4W30 1 R11 1K R1/4W31 1 U1 L4971 DIP832 1 U2 LM2591 TO-220-5PIN33 1 U3 7805 78XXTO22034 1 U4 7905 79XXTO220


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6.MODULATOR STAGE6.1 GENERAL DESCRIPTIONThe new modulator board SINTEL 96 allows a high quality direct carrier modulation accepting a

composite stereo (MPX) or a mono input signal with up to 3 SCA subcarriers (for example RDS,

ARI, ...).

The mono input signal is filtered by a 7 th order elliptic filter with a very flat response (20Hz to

15kHz with 0.25 dB) and an optimum out of band attenuation (>50 dB for frequencies higher than

19 kHz), then the signal is amplified (or attenuated) and passed to the VCO oscillator for the FM

carrier modulation. The VCO is controlled by a digital PLL circuit with a high stability quartz

reference to obtain a very stable synthesised oscillation: the frequency setting is customisable using

on board dip-switches (the minimum step size is 10 kHz).

The composite stereo signal and the SCA subcarriers are just amplified or attenuated by the correct

modulation depth adjustment before going through the VCO stage: the stereo performances of

SINTEL 96 are excellent, (stereo separation >60 dB from 20Hz to 15 kHz, SNR > 80 dB).

Before the VCO stage, an adjustable and bypassable deviation limiter prevents the FM carrier from

an excessive modulation depth and adjacent channel interference according to all the international

standards (CCIR, FCC).

Furthermore, an automatic locking circuit enables the output modulated signal of SINTEL 96 only

when the internal PLL is locked properly, in order to avoid unwanted emissions.


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6.2 SINTEL 96 MODULATOR BOARDFig. 6.1 - MODULATOR BOARD GENERAL ELECTRICAL SCHEMATIC


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Fig. 6.2 - PLL STAGE ELECTRICAL SCHEMATIC


48/101



Fig. 6.3 - VCO STAGE ELECTRICAL SCHEMATIC


49/101



Fig. 6.4 - L.F. STAGE ELECTRICAL SCHEMATIC


50/101



Fig. 6.5 - L.F.2 STAGE ELECTRICAL SCHEMATIC


51/101



Fig. 6.6 - FILTER STAGE ELECTRICAL SCHEMATIC


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Fig. 6.7 - MODULATOR BOARD COMPONENT LAYOUT (DB 9604-010)


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6.3 MODULATOR BOARD PARTS LISTITEM QUANTITY REFERENCE PART__________________________________________________________________

1 1 CN1 SMB SMB DA STAMPATO2 2 CN3,CN2 AMP43 18 C1,C16,C18,C25,C26,C36, 100n POLY

C37,C84,C94,C95,C100,C101,C108,C111,C114,C116,C118,C119

4 1 C2 15p5 1 C3 10-60p6 5 C4,C5,C8,C12,C21 10n POLY

7 2 C6,C7 4n7 POLY8 3 C9,C14,C102 1u POLY9 9 C10,C19,C59,C61,C63,C85, 10n CER

C86,C120,C12110 1 C13 1u POLY11 14 C15,C17,C23,C33,C39,C40, 1n CER

C41,C42,C43,C44,C45,C46,C47,C48

12 6 C22,C31,C79,C99,C115, 10u ELETT.25VC117

13 5 C27,C28,C29,C82,C83 1u ELETT.25V14 7 C30,C66,C67,C70,C105, 10p CER

C112,C12215 1 C32 47u elettrol. tantalio16 1 C34 33p CER17 1 C35 22p CER18 2 C51,C49 47p CER19 8 C50,C52,C56,C58,C60,C62, 100p CER

C109,C11020 2 C53,C71 330n poly21 1 C57 4p7 cer22 2 C64,C65 100u 25V23 3 C69,C91,C92 100n cer24 8 C72,C73,C75,C77,C80,C96, 3n3 CER

C97,C9825 1 C87 220p CER26 3 C88,C89,C90 4n727 2 C126,C93 100p28 1 C103 100n CP129 1 C106 100n30 1 C107 68p CER31 1 C113 1p CER32 1 C125 22p33 1 C127 1u34 1 C128 10n multistrato35 7 D3,D12,D13,D15,D16,D17, 1N4148

D1836 4 D4,D6,D9,D10 5V1 ZENER


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ITEM QUANTITY REFERENCE PART__________________________________________________________________

37 1 D5 LED

38 2 D8,D7 BB80939 1 JP6 JUMPER JUMPER X240 2 JP8,JP7 JUMPER41 1 J1 CON2042 2 J4,J3 CON1443 1 L1 INDUCTOR44 2 L2,L15 100n INDUTT ASSIALE45 1 L3 10R 1/2W 1/2 W46 1 L9 10uH47 1 L10 10uH R148 3 L11,L12,L14 10uH INDUTT.49 1 L13 10uH INDUTT.

50 2 Q2,Q3 BC55751 5 Q4,Q5,Q6,Q7,Q8 BFY9052 1 Q9 BC30753 1 Q10 BC23754 1 R? 22K 1/8W55 4 R1,R2,R3,R4 27K4 1% RES 1/8W56 1 R5 48K7 1% RES 1/8W57 2 R7,R6 27K RES 1/8W58 1 R8 22K RES 1/8W59 1 R9 48K7 1%60 3 R10,R24,R73 1M RES 1/8W61 1 R11 50K Trimmer multigiri

62 5 R12,R34,R38,R42,R108 47K RES 1/8W63 1 R15 2.2K RES 1/8W64 14 R16,R18,R22,R56,R74,R103, 10K RES 1/8W

R106,R130,R131,R132,R133,R134,R135,R136

65 1 R17 560 RES 1/8W66 2 R20,R29 1K5 RES 1/8W67 4 R21,R31,R35,R124 470 RES 1/8W68 1 R23 6.8K RES 1/8W69 14 R25,R37,R39,R41,R54,R58, 1K RES 1/8W

R60,R75,R79,R80,R111,R118,R119,R121

70 2 R26,R69 5k6 RES 1/8W71 1 R27 330 RES 1/8W72 1 R28 15k RES 1/8W73 4 R30,R36,R40,R62 33k RES 1/8W74 2 R33,R32 100 RES 1/8W75 1 R43 680R 1/8W76 2 R45,R44 31K6 1% 1/4W77 2 R47,R46 10K 1% 1/4W78 2 R48,R49 169K 1% 1/4W79 2 R138,R50 5K680 2 R51,R137 1M81 1 R52 3K3 RES 1/8W

82 4 R53,R57,R71,R72 4K7 RES 1/8W


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ITEM QUANTITY REFERENCE PART__________________________________________________________________

83 3 R55,R59,R61 180K RES 1/8W

84 2 R66,R110 4K7 TRIM MONOGIROPICCOLO

85 2 R109,R68 560R RES 1/8W86 1 R77 10K TRIMMER MULTIGIRI87 1 R78 20K trim88 1 R81 560R 1% 1/4W89 1 R82 301k RES_1/4W_1%90 1 R83 3k57 RES_1/4W_1%91 1 R84 536R RES_1/4W_1%92 6 R85,R91,R97,R115,R116, 3k01 RES_1/4W_1%

R11793 1 R87 3k3 RES_1/8W

94 2 R88,R94 2k trim multi95 1 R89 4k64 RES_1/4W_1%96 1 R90 2k74 RES_1/4W_1%97 2 R93,R98 2K2 RES_1/8W98 1 R95 4k02 RES_1/4W_1%99 1 R96 1k91 RES_1/4W_1%100 1 R100 2k RV64W101 1 R101 2k61 RES_1/4W_1%102 1 R102 301k 1/4W 1%103 1 R104 2K2 RES 1/8W104 1 R105 2K2105 1 R107 10K TRIM MONOGIRO

PICCOLO106 1 R112 68K RES 1/8W107 1 R113 12K1108 1 R114 9K53 RES 1/8W109 1 R120 10R RES 1/8W110 1 R122 68 RES 1/8W111 1 R123 10 RES 1/8W112 1 R125 47 RES 1/8W113 1 R126 220R RES 1/8W114 1 R128 100R RES 1/8W115 1 R129 330R RES 1/8W116 2 SW2,SW1 DIP SW 8

117 7 TP1,TP4,TP5,TP6,TP7,TP8, TPTP10

118 1 U1 MC145152119 2 U2,U19 TL082120 1 U3 78L05121 1 U4 MB501L122 1 U6 78L08123 4 U10,U16,U17,U18 TL084124 1 U15 74HC14125 1 Y1 2.56MHz


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7.PROTECTION BOARDFig. 7.1 - PROTECTION BOARD N1 GENERAL SCHEMATIC


57/101



Fig. 7.2 - GATES CONTROL STAGE ELECTRICAL SCHEMATIC


58/101



Fig. 7.3 - UNBALANCING STAGE ELECTRICAL SCHEMATIC


59/101



Fig. 7.4 - POWER LIMITING STAGE ELECTRICAL SCHEMATIC


60/101



Fig. 7.5 - TEMPERATURE PROTECTION STAGE ELECTRICAL SCHEMATIC


61/101



Fig. 7.6 - PROTECTION BOARD N1 COMPONENT LAYOUT (DB 9702-004)


62/101



7.1 PROTECTION BOARD N1 PART LISTITEM QUANTITY REFERENCE PART

____________________________________________________________________________

1 67 C1,C2,C3,C4,C5,C6,C7,C8, 1n CER

C9,C10,C11,C12,C13,C14,

C15,C16,C17,C18,C25,C26,

C28,C29,C30,C31,C32,C34,

C35,C36,C70,C71,C72,C74,

C75,C76,C80,C84,C88,C102,

C105,C106,C107,C108,C109,

C114,C115,C116,C117,C118,

C119,C120,C121,C123,C124,

C125,C126,C127,C128,C129,

C130,C131,C132,C133,C134,

C135,C136,C137,C138

2 10 C19,C20,C21,C22,C37,C38, 100n POLY

C39,C40,C68,C69

3 3 C27,C33,C73 1u POLY

4 1 C122 1n POLY

5 14 D5,D6,D7,D8,D9,D10,D11, 1N4148

D13,D14,D21,D23,D24,D25,

D26

6 2 FIS1,FIS2 FIS

7 1 JP1 JUMPERx2 JUMPERx2

8 2 JP2,JP3 JUMPERx3 JUMPERx3

9 1 J1 CON24 CON AMP 24

10 1 J2 CON20 CON FLAT 20

11 7 J3,J4,J5,J6,J7,J8,J9 PINSTRIP Fx2 PINSTRIP Fx2

12 2 Q2,Q3 BC237

13 4 R5,R6,R7,R22 33K RES 1/8W

14 20 R8,R9,R10,R11,R12,R13, 10K RES 1/8W

R14,R15,R16,R17,R18,R19,R21,R24,R26,R119,R151,

R152,R153,R154

15 7 R20,R27,R28,R35,R43,R116, 4K7 RES 1/8W

R124

16 4 R23,R40,R47,R121 5K TRIM MULTIG.

17 2 R25,R127 1K RES 1/8W

18 4 R34,R36,R42,R44 10K RES 1/4W 1%

19 2 R87,R37 3K3 RES 1/4W

20 3 R38,R46,R130 1M RES 1/8W

21 1 R39 5K62 RES 1/4W 1%22 3 R41,R48,R117 1K RES 1/4W 1%


63/101



ITEM QUANTITY REFERENCE PART

________________________________________________________________________

23 3 R45,R128,R129 1K RES 1/4W

24 1 R53 20K RES 1/4W 1%25 2 R118,R159 2K2 RES 1/4W

26 1 R120 8K66 RES 1/4W 1%

27 1 R122 3K3 RES 1/8W

28 1 R123 22K RES 1/8W

29 1 R125 15K RES 1/8W

30 1 R126 47K RES 1/8W

31 3 U1,U2,U3 TL084

32 1 U9 79L05

33 1 U10 TL082


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Fig. 7.7 - PROTECTION BOARD N2 GENERAL SCHEMATIC


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Fig. 7.8 - PROTECTION STATUS STAGE ELECTRICAL SCHEMATIC


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Fig. 7.9 - POWER SUPPLY STAGE ELECTRICAL SCHEMATIC


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Fig. 7.10 - MEASURES ADJ. STAGE ELECTRICAL SCHEMATIC


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Fig. 7.11 - LED INDICATIONS STAGE ELECTRICAL SCHEMATIC


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Fig. 7.12 - PROTECTION BOARD N2 COMPONENT LAYOUT (DB 9703-011)


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7.2 PROTECTION BOARD N2 PART LISTITEM QUANTITY REFERENCE PART______________________________________________________________

1 2 C54,C132 10U ELETT.50V2 10 C55,C92,C93,C94,C98,C110, 1N CER

C111,C112,C113,C1313 7 C56,C57,C64,C128,C129, 100U ELETT.25V

C133,C1344 1 C58 22U ELETT.63V5 5 C59,C60,C62,C130,C135 10N POLY6 2 C61,C127 100P CER7 6 C65,C66,C82,C83,C103, 100N POLY

C1048 4 C77,C81,C85,C89 10U ELETT.25V9 4 C95,C96,C97,C99 1U POLY10 6 D15,D17,D18,D19,D20,D22 LED LED3MM11 2 D16,D27 1N5819 DIODO12 4 FIS1,FIS2,FIS3,FIS4 FIS13 3 J3,J4,J5 PINSTRIP MX2 PINSTRIP MX214 2 L1,L9 100U INDUTT15 6 L3,L4,L5,L6,L7,L8 150U INDUTT16 5 Q1,Q4,Q5,Q6,Q7 BC23717 4 R29,R50,R52,R133 1M RES 1/8W18 8 R30,R49,R51,R132,R140, 1K RES 1/8W

R144,R145,R15019 3 R88,R89,R90 1K5 RES 1/4W20 1 R91 100R RES 4W

21 1 R92 1K54 RES 1/4W 1%22 1 R93 16K9 RES 1/4W 1%23 10 R95,R96,R97,R98,R99,R100, 1K TRIM RO

R135,R136,R137,R13824 9 R102,R141,R142,R147,R148, 22K RES 1/8W

R155,R156,R157,R15825 2 R103,R111 1K RES 1/4W26 4 R104,R105,R106,R109 150K RES 1/8W27 2 R107,R108 15K RES 1/8W28 4 R110,R112,R113,R131 4K7 RES 1/8W29 3 R114,R115,R134 1K2 RES 1/4W30 4 R139,R143,R146,R149 47K RES 1/8W

31 1 R160 1K RES 1/4W 1%32 1 R161 8K66 RES 1/4W 1%33 4 R162,R163,R164,R165 1R RES 1/4W34 2 U11,U4 TL08435 2 U7,U12 UA78S4036 2 U8,U13 LT1054


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8.METER STAGE8.1 GENERAL DESCRIPTION

The meter stage is built using two boards:

The ST62T25 microprocessor board DB 9903_040

The display board DB 9903_050 is composed of forty LED bargraph display.


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Fig. 8.1 METER BOARD DB 0007_040 ELECTRICAL SCHEMATIC


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Fig. 8.2 - METER BOARD DB 0007_040 COMPONENT LAYOUT


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Fig. 8.3 - METER BOARD DB 0007_050 ELECTRICAL SCHEMATIC


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Fig. 8.4 - METER BOARD DB 0007_050 COMPONENT LAYOUT


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8.2 METER BOARDS PARTS LISTITEM QUANTITY REFERENCE PART

1 16 C1,C8,C9,C10,C11,C12, 1nF CER. P.5mmC13,C14,C15,C21,C23,C24,C30,C31,C32,C33

2 2 C22,C2 1uF 50V P.2.5mm3 1 C3 10uF 25V P 2.5mm4 5 C4,C16,C19,C20,C25 100nF MUL P.5mm

5 2 C5,C6 22pF P 2.5mm6 1 C7 1uF POL P 5mm7 9 DL1,DL2,DL3,DL4,DL5, LED V D.3mm

DL6,DL7,DL8,DL98 4 D1,D2,D3,D4 1N4148 DIODO9 2 JP1,JP2 JUMPER STRIP2M+PONTIC

10 1 JP10 STRIP7F

11 1 JP11 STRIP7M12 1 JP20 STRIP5M13 1 JP21 STRIP5F14 1 JP30 STRIP12F15 1 JP31 STRIP12M16 3 J1,J2,J3 CNM20V17 1 J4 CNM14V18 1 J6 AMP419 1 J7 CNM10V

20 3 L1,L2,L3 10uH21 1 P1 1K TRIM RS186-96822 1 P2 10K TRIM RS186-94623 3 P3,P4,P5 10K TRIM 1GRO

24 2 Q2,Q1 BC547 TRANSISTOR25 6 Q3,Q4,Q5,Q6,Q7,Q8 BC517 DARLINGTON26 6 RR1,RR3,RR4,RR5,RR6, 8X47R+ C SIL

RR1127 2 R0,R1 47R 1W28 1 R2 4M7R 1/4W NON MONTARE CON

RISUONATORE CERAMICO29 1 R3 47KR 1/4W30 3 R4,R5,R8 4K7R 1/4W31 9 R9,R10,R12,R13,R16, 1KR 1/4W

R17,R18,R36,R40

32 9 R11,R14,R19,R20,R21, 10KR 1/4WR22,R34,R38,R42

33 1 R15 680R 1/2W34 2 R30,R32 2K2R 1/4W35 2 R31,R33 33KR 1/4W36 3 R35,R39,R41 100KR 1/4W


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ITEM QUANTITY REFERENCE PART__________________________________________________________________________________________

37 1 R37 22K1/4W38 1 SW1 PULSMOZART

39 2 S1,S2 SLITTA C&K40 1 U1 ZOCCOLO 28 LARGO (ST6225)41 1 U2 I.C.ULN2803 or TD7208342 1 U3 I.C. 402843 4 U4,U5,U6,U7 LEDBAR DC10GWA KINGBRIGTH

44 1 U8 I.C.TL08445 1 U9 I.C.74HC3246 1 U10 78L0547 1 Y1 RISUONATORE CER.4MHz

QUARZO 4MHz48 1 CS1 STAMPATO DB0007_040


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9.IN-AUDIO BOARDFig. 9.1 - IN-AUDIO BOARD ELECTRICAL SCHEMATIC


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Fig. 9.2 - IN-AUDIO BOARD COMPONENT LAYOUT (DB 9909_010)


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9.1 IN-AUDIO BOARD PARTS LISTITEM QUANTITY REFERENCE PART________________________________________________________

1 4 C1,C3,C5,C7 100pF CER.2 3 C2,C4,C6 4n7F POL.3 5 JP1,JP2,JP3,JP4,JP5 STRIP3M4 1 J1 CNM20V5 2 J2,J3 CNM14V6 3 J4,J10,J20 CNM10V7 8 J5,J6,J7,J8,J11,J12,J13,J14 BNC90CS8 4 L1,L2,L3,L4 10uH9 2 PR,PL XLRF90CS10 2 RL,RR 5K 10GROP11 1 R1 470R 1/4W12 1 TMPX 10K 10GROP13 3 TSC1,TSC2,TSC3 1K 10GROP


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9.2 IN-AUDIO BOARD JUMPERS SETTING


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10.TRANSMITTER OPTIONSThe /C option if request is present on the front panel and permits to change the transmitting

frequency without open the equipment.

The /S option has a built-in digital stereo coder with stereo separation in excess of 65 dB and a SNR

of more than 80 dB. The /P option includes a stereo audio processor with a wide range compression

threshold, attack and release time adjustments and full compatibility with digital audio mixing

consoles. The /R option consists of full remote control capability with remote adjustments and

checks for all main parameters: power output adjustment, on/off, protections reset, forward and

reflected power measure, frequency deviation measure and alarms status. The /FSK option makes

the PM 1000 transmitter fully compatible with the FCC automatic identification system. The /VDC

option provides battery operation.

In this manual are included the most requested option from the customers.

10.1 EXTERNAL FREQUENCY CONTROL (/C Option)On the synthesized board the dip-switches are changed with a 20 pin connector, so that it is

possible connect with a flat type cable this circuit (that manage PLL) to a microprocessor.The frequency change is fast, because it is only necessary put directly the frequency using the

external frequency control (contraves) on the front panel.


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Fig. 10.1 - EXTERNAL FREQUENCY CONTROL ELECTRICAL SCHEMATIC


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Fig. 10.2 - EXTERNAL FREQUENCY CONTROL COMPONENT LAYOUT (DB 9308-020)

10.2 EXTERNAL FREQUENCY CONTROL PARTS LISTITEM QUANTITY REFERENCE PART______________________________________________________

1 1 CN1 CONN 202 1 CN2 CONN 103 2 C2,C1 10p cer

4 3 C3,C4,C6 10u5 3 C5,C7,C8 100n pol6 21 D1 - D22 1N41487 1 D21 LED d38 9 JP1,JP2,JP3,JP4,JP5, jumper

JP6,JP7,JP8,JP9,JP109 4 R1,R2,R3,R4 47K10 1 R5 1k11 1 R6 2M212 2 R8,R7 10k13 5 S1,S2,S3,S4,S5 CONTRAVES

14 1 U1 78L0515 1 U2 MC68HC705C8P16 1 X1 2-4 MHz


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11.STEREO ENCODER BOARD (/S Option)11.1 CHANNELS PRE- EMPHASIS SETTING

RIGHT CHANNEL PRE-EMPHASIS

(see Fig. 11.3 and Fig. 11.10)

To change the pre-emphasis, you need to set (or change position of) the JP3, JP4 jumpers on the

STEREO encoder board.

To disable preemph you have to remove both jumpers; to get a 50 us preemph, you have to insert

only JP3; if you want a 75 us preemph both JP3 and JP4 must be inserted.

LEFT CHANNEL PRE-EMPHASIS

(see Fig. 11.3 and Fig. 11.10)

To change the pre-emphasis, you need to set (or change position of) the JP5, JP6 jumpers on the

STEREO encoder board.

To disable preemph you have to remove both jumpers; to get a 50 us preemph, you have to insert

only JP6; if you want a 75 us preemph both JP5 and JP6 must be inserted.


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Fig. 11.1 - STEREO ENCODER GENERAL ELECTRICAL SCHEMATIC


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Fig. 11.2 - L/R PEAK DETECTOR STAGE ELECTRICAL SCHEMATIC


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Fig. 11.3 - INPUT STAGE ELECTRICAL SCHEMATIC


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Fig. 11.4 - RIGTH FILTER STAGE ELECTRICAL SCHEMATIC

U


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Fig. 11.5 - LEFT FILTER STAGE ELECTRICAL SCHEMATIC


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Fig. 11.6 - OSCILLATOR STAGE ELECTRICAL SCHEMATIC


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Fig. 11.7 - 19 KHz STAGE ELECTRICAL SCHEMATIC


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Fig. 11.8 - 38 KHz STAGE ELECTRICAL SCHEMATIC


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Fig. 11.9 - OUTPUT STAGE ELECTRICAL SCHEMATIC


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Fig. 11.10 - STEREO ENCODER COMPONENT LAYOUT


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11.2 STEREO ENCODER PARTS LISTITEM QUANTITY REFERENCE PART

__________________________________________________________________1 3 C64,C65,C135 220n poly2 1 C1 56p cer np03 38 C2,C3,C4,C10,C13,C14,C15, 100n poly

C16,C17,C22,C23,C24,C25,C26,C27,C28,C29,C36,C37,C51,C52,C53,C54,C55,C56,C57,C58,C59,C66,C69,C81,C82,C83,C84,C85,C86,C89,C90

4 1 C8 33p cer np05 1 C9 10-60p orange

6 2 C11,C44 10p cer np07 1 C12 18p cer np08 2 C20,C21 330p cer9 1 C38 3p3 cer np010 1 C39 5p6 cer np011 1 C40 27p cer np012 1 C41 47p cer np013 17 C42,C107,C108,C109,C110, 3n3 polistirene

C111,C112,C113,C114,C117,C118,C119,C120,C121,C122,C123,C126

14 2 C43,C61 82p cer np0

15 2 C45,C49 470p polistirene16 1 C46 330p polistirene17 2 C47,C63 68p cer np018 1 C48 15p cer np019 2 C62,C50 120p cer np020 1 C60 3-18p red21 12 C67,C68,C79,C80,C91,C92, 10u tant 25V

C95,C96,C115,C116,C124,C125

22 4 C70,C71,C77,C78 100p23 4 C72,C73,C75,C76 10p cer24 3 C74,C102,C106 100p cer

25 4 C87,C88,C97,C98 330n poly26 6 C99,C100,C101,C103,C104, 4n7 polistirene

C10527 1 C127 100p cer np028 1 C128 680p cer np029 1 C129 10p30 2 C130,C134 3n331 2 C132,C131 47u TANTALIO32 1 C133 1n poly33 4 D1,D2,D3,D4 1N414834 2 JP2,JP1 jumper


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ITEM QUANTITY REFERENCE PART_________________________________________________________________35 2 JP6,JP3 jumper ON/OFF36 2 JP5,JP4 jumper 50/75us

37 2 J2,J1 CON1438 2 J3,J4 CON2039 1 L5 10uH ind. assiale40 4 L1,L2,L3,L4 10uH41 1 RL1 G6H-2-100 OMRON 22Z3K3 12V42 1 R1 1k 1/8W43 1 R2 1M 1/8W44 1 R3 11k 1/4W 1%45 1 R4 11k5 1/4W 1%46 1 R5 12k4 1/4W 1%47 1 R6 14k3 1/4W 1%48 1 R7 17k4 1/4W 1%

49 1 R8 23k2 1/4W 1%50 1 R9 37k4 1/4W 1%51 1 R10 113k 1/4W 1%52 3 R11,R68,R75 9k53 1/4W 1%53 1 R12 8k66 1/4W 1%54 7 R13,R80,R82,R83,R102, 2k trim multi

R104,R10655 1 R14 511R 1/4W 1%56 1 R15 5OOR trim multi57 1 R16 487R 1/4W 1%58 4 R17,R30,R55,R76 4k7 1/8W59 1 R18 10k 1/4W

60 2 R19,R26 324k 1/4W 1%61 2 R20,R25 115k 1/4W 1%62 2 R21,R24 75k 1/4W 1%63 2 R22,R23 64k9 1/4W 1%64 7 R27,R63,R64,R67,R69,R70, 12k1 1/4W 1%

R7465 2 R28,R29 2k15 1/4W 1%66 1 R31 6k81 1/4W 1%67 1 R32 13k 1/4W 1%68 1 R33 10k5 1/4W 1%69 1 R34 909R 1/4W 1%70 2 R35,R36 1k47 1/4W 1%

71 1 R37 5k trim multi72 2 R39,R38 10k 1/4W 1%73 5 R40,R53,R54,R58,R59 31k6 1/4W 1%74 1 R41 50k trim multi75 1 R42 20k 1/4W 1%76 1 R43 825R 1/4W 1%77 1 R44 1k5 1/4W78 1 R45 20k trim multi79 1 R46 15k 1/4W80 1 R47 0R 1/4W81 2 R48,R49 10k 1/8W82 2 R50,R51 100k 1/8W

83 2 R52,R60 680R 1/4W


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ITEM QUANTITY REFERENCE PART__________________________________________________________________84 1 R56 10k trim multi85 1 R57 2k2 1/8W

86 2 R61,R62 560R 1/4W87 4 R65,R66,R71,R77 169k 1/4W 1%88 2 R73,R72 22k 1/8 W89 12 R78,R81,R93,R94,R95,R98, 3k01 1/4W 1%

R100,R103,R105,R115,R116,R118

90 2 R79,R101 3k3 1/4W91 4 R84,R85,R107,R108 2k2 1/4W92 4 R86,R91,R99,R113 301k 1/4W 1%93 2 R87,R109 3k57 1/4W 1%94 2 R88,R110 4k64 1/4W 1%95 2 R89,R111 4k02 1/4W 1%

96 2 R90,R112 2k61 1/4W 1%97 2 R92,R114 1k91 1/4W 1%98 2 R96,R117 2k74 1/4W 1%99 2 R97,R119 536R 1/4W 1%100 1 R122 0R101 1 R123 5k6102 1 R124 100R 1/4 W103 1 R125 100R 1/4W104 1 R126 4K7105 1 R127 10k 1/4 W 1%106 1 U1 4001107 1 U2 4024

108 1 U3 4013109 4 U4,U5,U12,U13 4035110 6 U6,U16,U23,U24,U25,U26 MC33079111 4 U7A,U7,U18B,U27 NE5532112 1 U8 4066113 3 U9,U10,U11 4053114 2 U14,U15 TL084115 2 U19,U22 TL082116 1 U20 7805117 1 U21 7905118 1 Y1 2.432MHz


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12. APPENDIX12.1 APPENDIX A - XLR AUDIO CONNECTORS PINOUTSConnection procedure to connect the audio signal cables to the XLR female connectors for a

balanced or unbalanced signal.

XLR FEMALE

XLR CONNECTOR PIN BALANCED SIGNAL UNBALANCED SIGNAL

1 ground ground

2 " +" ground

3 "" signal


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12.2 APPENDIX B - MOSFET REPLACEMENT(see next figure)

1. Disconnect the supply voltage from the output board (faston connection).2. Unscrew the damaged MOSFET and the output matching board.3. Unsolder the MOSFET.4. Clean the input and output boards to prevent short-circuits before replacing the MOSFET.5. Locate properly the white teflon sheets between the output circuit and the heat sink: affix the

circuit using the two screws.

6. Put on the thermally conductive compound between the MOSFET case and the heat sink.7. Fix the MOSFET to the heat sink (screws must be strongly fixed) and solder all the four pins of

the MOSFET: careful attention must be paid to the output board soldering since an

excessive quantity of tin can cause a short circuit between different board layers. Reconnect

also the 2 GND interconnections, indicated, and check the right soldering of the input

transformer and gate resistor.

8. Verify that the supply voltage is 45V (if it is not, there is a problem in the switching powersupply boards). Reconnect the supply voltage to the output board (faston connection), placing an

amperometer in series (minimum full scale deflection 10A).

9. Control the output power level (it should be 1000W) and the absence of spurious emissions (tocheck it, use a spectrum analyser and an output RF monitor sufficiently attenuated). Pay

attention to the amperometer: the MOSFET must not drain more than 9A.

10. In case the replaced MOSFET doesnt reach the nominal output power or in case of spurious

emissions you need to improve the input matching of the MOSFET: to do this compress or

expand manually the input circuit coil (see ) to maximise the output power.


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Fig. 12.1 MOSFET REPLACEMENT ON THE AMP300 BOARD

Pm1000 Fm Transmitter User Manual

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