MicroLab Service Manual - Eolys · 1 MicroLab Service Manual 069-17 Revision 1.0 November 2002...

1

MicroLab

Service Manual

069-17 Revision 1.0 November 2002

Micro Medical Limited, P.O. Box 6, Rochester, Kent ME1 2AZ

2

MicroLab - System Overview (Fig. 1) The Micro Medical MicroLab is a data recording spirometer consisting of a microcomputer unit (1) incorporating an LCD graphic display, data entry keypad, RS232 serial interface and all associated circuitry. This is supplied with a digital volume transducer (2), disposable mouthpieces, transducer holder (3) and mains adapter (4). The MicroLab is powered by internal rechargeable Nickel Cadmium cells or by the mains adapter supplied (4). When testing a subject the transducer is inserted into the holder which is plugged into the microcomputer unit. The digital volume transducer is used to measure the subjects expired flow and volume in accordance with the operating manual.

2

3

Micro

Medi cal

Fig. 1

4

1

micro lab

F1 F4F2 F3

7PQRS

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4GHI

1

Esc Del

8TUV 9WXYZ

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5 JKL

2ABC

6 MNO

3 DEF

3

Transducer (Fig. 2) The Micro Medical digital volume transducer consists of an acrylic tube with a vane positioned between two swirl plates. The low inertia vane is attached to a stainless steel pivot which is free to rotate on two jewelled bearings mounted at the centre of the swirl plates. As air is passed through the transducer a vortex is created by the swirl plates which causes the vane to rotate in a direction dependant upon the direction of air flow. The number of rotations is proportional to the volume of air passed through the transducer and the frequency of rotation is proportional to the flow rate. The transducer housing consists of a main body which contains a pair of light emitting diodes (LED’s) and phototransistors. The transducer is fixed to the mouthpiece holder which pushes into the main body and is captured by an “O” ring seal. The LED’s produce infra red beams which are interrupted by the vane twice per revolution. This interruption is sensed by the phototransistors. The output from the collector of each phototransistor will be a square wave with a phase difference between the two of + or - 90 degrees depending upon the direction of flow. There is no routine maintenance required for the transducer other than cleaning according to the instructions in the operating manual.

Volume = k X No. of pulses

Volume proportional to the number of pulsesFlow proportional to the puse frequency

Micro Medical Digital Volume Transducer

Infra reddetector

Flow = k / pulse period

Infra redemitter

Rotatingvane

Swirlplate

Jewelledbearing

4

Microcomputer Unit

(Refer to drawings 069-01 to 069-06, and 069-14 to 069-12) The microprocessor control circuit carries out the spirometry routines, monitors the transducer pulses and keypad, and drives the display under the control of the program module. The drawing 069-01 is a hierarchical block diagram showing the connections of the sub-sections. The rest of the drawings are sub-sections and are described in detail below.

Micro controller (069-02).

U2 is a Hitachi HD64F2318 16 bit microprocessor with 256K of flash memory and 8K of Ram. The system clock is supplied by 20MHz crystal (X1). There is also 512 Kbyte (U4) of external Ram used for running a module and storing variable data. The internal flash is used for the boot software, kernel and the base module. The kernel handles the low level interface to display, keyboard etc. and the base module runs on start-up and gives a choice of which module needs to be executed. The modules are stored in the external 8 Mbyte Flash PROM (U5). The kernel also has a flash filing system which keeps track of all the files in the external Flash PROM. The files can be an executable module or spirometry or other module data. The filing system is similar to the old PC Dos filing system. U6 is just used to control the access to the flash device. The speaker J2 is directly connected to the Port pins and the pins are toggled at 1 KHz to generate the buzzing sound. U2 is used for enabling the internal flash to be overwritten. If a new kernel is downloaded, the flash is enabled and data transferred. U1 is the reset controller, which holds the reset line low for 350 ms on power up. This ensures that the supply has stabilised before the micro starts. TR1 is used by the micro to hold the power supply ON whilst it is writing to the filing system. This is to ensure that data is not corrupted when it is writing and the power is turned off. TR2 allows the micro to turn off the power and switch off the unit. This is normally done when the unit is left on for a long period of time. To preserve the battery, it turns it off.

5

Memory Map

0x000000 - 0x040000 256K Internal Flash 0x400000 - 0x480000 512K External Ram for modules 0x800000 Flash Prom (Single address used) 0xC00000 Display Controller 0xFFDC00 – 0xFFFBFF 8K Internal Ram – stack.

Keypad interface (069–15)

The 26 keypad switches are arranged in a 5 X 5 matrix and a separate On/Off key. When the keypad is being read by the processor the 5 columns are sequentially driven low by the port lines PE0 – PE4. The state of the 5 rows is read by the port P40 – P44. The diodes in the keypad PCB isolate the outputs from the Port to ensure that a high current will not flow from an output set high to one set low if two keys are pressed simultaneously. The ON/OFF key is connected to the power

control circuitry described in the Power Supply section. Resistor RN1 ensures that the keys that are not pressed are read as high.

Serial interface (069-15)

The uC communicates with the PC or the printer via an RS232 serial interface at 38,4 Kbits per sec baud rate, with 8 bits data, 1 stop bit and no parity. U17 converts the RS232 signal to a logic signal of 3.3V. The uC has two inbuilt serial controllers, SCI0 and SCI1. SCI0 is used for synchronous data transfer whilst SCI1 is used in asynchronous mode for RS232.

Real Time Clock (069-15)

U18 is a Xicor X1243 real time clock with 2Kbyte of EEPROM. It operates at 32.768 Khz and is powered by the lithium battery. The device requires a very small amount of power during standby mode and as the unit will never drain the battery out, this should be sufficient to keep the clock going for a long period of time before recharging. The clock is set by the processor during the factory set-up and should not require any further adjustment. The date and time can be changed from the system menu. The interface to the clock is via a I2C bus. The uC does not have a dedicated I2C bus, so two port lines (P20 – P21) are used under software to emulate the bus. The EEPROM is used for storing the calibration value and other system data. If the device is ever replaced, the unit will have to be reconfigured and recalibrated.

6

Temperature Sensor

U19 is a Dallas DS18S20 temperature sensor operating on their one wire bus protocol. It has an accuracy of 0.5 degree centigrade. A port line P23 is used under software to emulate the one wire bus. The ambient temperature reading is used for adjusting inspiratory flow at ambient temperature to respective flow at body temperature.

Transducer interface (069-16)

The supply to the two series LED’s inside the transducer housing is provided through TR9 which is switched on or off by TR3. This is controlled by port pin P26 of the processor and is only turned on during a spirometry manoeuvre to conserve power. However, power is supplied to the transducer through D2 continuously when the mains adapter is connected. Inside the transducer housing the two phototransistors used to detect the interrupted infra-red beam are in open collector configuration. The collectors are connected to pins 2 and 3 of SK2. The pull up resistor for the two phototransistors is provided by R37 and R38. The signal from the phototransistor is applied to the pulse timing input of the processor (P16) after being squared up by the action of the Schmitt inverter U13. The signal from the second phototransistor, after conditioning (U14) is applied to a D type latch, clocked by the first phototransistor, to determine the direction of the turbine. The direction signal is fed to uC via port P17. The rising edge of the signal applied to P16 causes an interrupt to be generated in the processor. This interrupt is processed by incrementing a pulse count, timing the period since the last pulse and by reading the state of P17. The pulse count is used to determine the volume passed through the transducer since the start of the test and the pulse period is used to determine the flow at each volume increment.

Display (069-03)

The display is a high resolution custom graphic 240 by 120 dot LCD. It is controlled by an Epson SED1335 display controller (U24), which directly interface to the uC. The display controller timing is generated by a 10 MHz crystal (X4). U23 is a 32K byte RAM to hold the display data. The LCD display is based on four planes, each requiring different plane voltage. It is biased by 22 V generated by DC-DC controller U9. VR2 varies this voltage which in turn changes the contrast. At dark level, the bias voltage is typically 22.6V and the plane voltages are 20.9V, 19.2V, 3.5V and 1.7V. Of course, they would be slightly different for different contrast level. The plane voltages are generated by resistor ratio dividers (R23, R24, R53, R26, R27) and buffered by quad Op-amp U25. J8 is a connector to the display.

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Power Supply (069-14)

The power to the system is either supplied by the 7.2V ni-cad battery or from an external 9V DC regulated power supply. If the external supply is connected, then TR4 is switched off and the battery is not used. R30 ensures that the battery is trickle charged at all times. The on/off key is conditioned via U10 and applied to set/reset D type flip flop (U11). On every key press, the flip flop toggles between the on and off state. In the On state, TR6 is switched on, switching on TR5. The on state can be held by MC_ON- line from the uC whilst it is saving data in the Flash PROM. The uC can also switch the power off by means of the MC_OFF- line which resets U11. U8 is a DC-DC converter with an input range of 0.9V to 10V and an output of 3.3 volts to power the unit. Since the range is up to 10V only, care should be taken not to use any other external power supply, as most of them are unregulated and could output 12V for a 9V unregulated supply. U7 is another DC-DC converter with an output of 9V. This higher supply is used for powering the sensor LEDs. R36 and R7 divide the unregulated voltage to a third and are applied to the A/D converter of the uC. The uC continuously examines the reading and gives a battery low or battery dead warning message. From the reading the uC can also deduce that the external supply is connected, so it can turn itself off if the unit is left on for a long time. Inductors L1 and L2 are placed for EMC filtering and D5 protects the unit from reverse polarity power supply

Printer Driver (Drawing 069-04, 069-05, 069-06)

The printer driver uses a single chip micro-controller (U12) with on board program memory and RAM to receive serial data from the microprocessor (U2) and control the printer mechanism. The printer mechanism uses stepper motors to drive the print head and paper feed. Each stepper motor uses four lines, driven sequentially. The order in which the lines are driven determines the direction of rotation. The thermal print head uses eight heater elements. The stepper motors and print head signals are generated on port A and B (active high) of the micro-controller (U12). The signals pass through sixteen current transistors (TR10 to TR25). Timing for Port A and B is derived from an adjustable oscillator comprising of U21 and associated components. Adjusting VR1 varies the oscillator frequency and consequently the period for which the thermal elements are energised. This in turn adjusts the print density. After the micro-controller is first reset, the print head is driven to the left until the end switch is activated. The end switch consists of a normally closed pair of contacts accessed at pins 1 and 2 of the printer connector, J7. The end switch is detected by PD5 on the micro-controller.

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Drawing No. 069-00 Date 19/09/02

Rev. 1.3 Page: 1 OF 5

Designation Part No. Description.

U1 MAX824TEXK-T Maxim power monitor, SOT23-5 package

U2 HD64F2318VTE25 Hitachi H8S/2318 microcontroller, TQFP100 package

U3 BU4S11 Rohm individual CMOS gate, SOT23-5 package

U4 K6T4008V1C-BB70 Samsung 512k X 8 bit CMOS static RAM, SOL32/525

U5 K9F6408U0A-TCB0 Samsung 8M X 8 bit FLASH memory, TSOP44/40

U6 74LCX32 Quad 2-input OR gate

U7 LT1613CS5 Linear Technology DC/DC convertor, SOT23-5 package



U10 4093 CMOS Quad NAND Schmitt input gate, SO-14 package

U11 4013 CMOS Dual D Type flip flop, SO-14 package

U12 MC68HC705C9ACFN Motorola OTP microprocessor

U13 BU4S584 Rohm individual CMOS Schmitt invertor, SOT23-5

U14 BU4S584 Rohm individual CMOS Schmitt invertor, SOT23-5

U15 MAX4544EUT-T Maxim SPDT analogue switch, SOT23-6 package

U16 MAX4544EUT-T Maxim SPDT analogue switch, SOT23-6 package

U17 MAX3221CAE Maxim RS232 transceiver, SSOP16 package

U18 X1243S8 Xicor clock calander with 256 X 8 bit RAM, SO-8 package

U19 DS18S20 Dallas semiconductor digital thermometer, TO-92B

U20 4013 CMOS Dual D Type flip flop, SO-14 package

U21 4069UB Surface mount unbuffered hex invertor

U22 LT1084CT LDO adj 5 amp regulator or National LM1084IT-ADJ

U23 GM76C256CLLFW-55-T/R Gold Star 32K X 8 bit CMOS static RAM, 28 pin SOP

U24 SED1335FOB Display driver

U25 LM324 Quad surface mount op amp


R1 100K resistor 1%, 0805 package












R13 4.7K resistor 1%, 0805 package





R18 10 ohm resistor 1%, 0805 package







9









R30 337-717 (F) 68 ohm 1 watt axial resistor









R39 10 Meg resistor 1%, 0805 package






R45 10 Meg resistor 1%, 0805 package









RN1 107-048 (F) 6 pin, 5 commoned 100K resistor, SIL network

RN2 219-186 (F) 5 pin, 4 commoned 10K resistor, SIL network

RN3 776-701(F) 1k 4 individual resistor network, 1206 package




VR1 499-663(F) 20K single turn surface mount preset

VR2 T18 S/I S/B S/T 20KA Piher 20K linear potentiometer

C1 100nF Philips or AVX ceramic, 0805 package










C11 33pF Philips or AVX ceramic, 0805 package




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C15 197-324 (F) 47uF/16v Surface mount Tantalum




























C43 301-7000 (F) 100uF/16v

C44 1uF Philips or AVX ceramic, X7R dielectric, 0805 package









C53 556-180 (F) 47uF/16v Surface mount Electrolytic

C54 556-180 (F) 47uF/16v Surface mount Electrolytic










TR1 DTC114EK Rohm NPN digital transistor, SOT-23 package


11





TR4 ZXM62P02E6 P channel MOSFET SOT23-6 package

TR5 ZXM62P02E6 P channel MOSFET SOT23-6 package

TR6 FMMT491A Zetex NPN Transistor SOT-23 package



TR9 DTB113EK Rohm PNP digital transistor, SOT-23 package

















D1 ZHCS1000 Zetex Schottky diode, SOT-23 package





D6 BAS19 General purpose diode, SOT-23 package

D7 UMN1NTR Quad commoned diode, IMN10 package







D14 DE5SC4M Dual commoned diode

D15 U1JC44 1A Toshiba diode


F1 MICROSMD035-2 Tyco 700mA Polyswitch

L1 NLFC453232-3R3M 3.3uH inductor, 1210 package

L2 NLFC453232-3R3M 3.3uH inductor, 1210 package

L3 353-1340 (F) 22uH inductor, 1210 package





DISPLAY LTA75R227J Nan Ya 240 X 160 graphic display

PRINTER STP411B-320 Seiko thermal printer mechanism

J1 3 way 0.1" pitch pin header

J2 2 way 0.1" pitch pin header

J3 2.5mm DC power socket from G.English

J4 95001-2661 Molex 6 way data socket

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J5 14FMN-BMTTN-TF 14 way 1mm pitch cable connector from JST

J6 MDS4 4 way mini DIN socket

J7 25 way connection to printer mechanism

J8

BAT1

SPKR

X1

X2

X3

X4

SW1

18FMN-BMTTN-TF

PKM35-4A0

571-672 (F)

295-267 (F)

485-081 (F)

773-209 (F)

18 way 1mm pitch cable connector from JST

3 way PCB socket from JST

Murata piezo ceramic sounder

20MHz crystal, HC49/4H package

32.768 KHz crystal, WATCH package

4.0MHz

10MHz crystal

2 pole momentary push switch

13

12

34

56

78

ABCD

87

65

43

21

D C B A

Title

Number

Revision

Size

A3

Date:

6-N

ov-2002

Sheet of

File:

H:\TEMP\069-01.sch

Drawn By:

RTC_DATA

RTC_CLK

BAT_MON

RX

TX

SOUT

SEN1

MC_ON-

MC_OFF-

SEN2

SIN

SEN-

SCLK

SOUT_EN-

MODE

RD-

WR-

A0

DISP_CS-

RESET-

D[0..7]

TEMP_IO

SEN_EN

SENDIR

KEYOUT[0..4]

KEYIN

[0..4]

ONLIN

E

PRNBUSY

RESET-

micro

MIC

RO.sch

RTC_DATA

RTC_CLK

BAT_MON

RX

TX

SOUT

SEN1

MC_ON-

MC_OFF-

SEN2

SIN

SEN-

SCLK

SOUT_EN-

MODE

RD-

WR-

A0

DISP_CS-

RESET-

D[0..7]

TEMP_IO

SEN_EN

SENDIR

KEYOUT[0..4]

KEYIN

[0..4]

ONLIN

E

PRNBUSY

RESET-

ON/O

FF_KEY

MC_OFF-

BAT_MON

MC_ON-

RTC_ON-

Power Supply

power.sch

ON/O

FF_KEY

MC_OFF-

BAT_MON

MC_ON-

RTC_ON-

SEN1

SEN2

SEN-

SOUT

SCLK

SIN

SOUT_EN-

SEN_EN

PRIN

TDATA

PRIN

TACK

SENDIR

Sensors

sensor.sch

SEN1

SEN2

SEN-

SOUT

SCLK

SIN

SOUT_EN-

SEN_EN

PRIN

TDATA

PRIN

TACK

SENDIR RX

TX

MODE

RTC_DATA

RTC_CLK

RTC_ON-

TEMP_IO

KEYOUT[0..4]

KEYIN

[0..4]

ON/O

FF_KEY

RS232

serial.sch

RX

TX

MODE

RTC_DATA

RTC_CLK

RTC_ON-

TEMP_IO

KEYOUT[0..4]

KEYIN

[0..4]

ON/O

FF_KEY

PRNBUSY

ONLIN

EPRIN

TDATA

PRIN

TACK

IN1

IN2

IN3

IN4

IN5

IN6

IN7

IN8

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

IN9

IN10

IN11

IN12

IN13

IN14

IN15

IN16

OUT9

OUT10

OUT11

OUT12

OUT13

OUT14

OUT15

OUT16

RESET-

PRIN

TER

PRIN

TER.sch

PRNBUSY

ONLIN

EPRIN

TDATA

PRIN

TACK

IN1

IN2

IN3

IN4

IN5

IN6

IN7

IN8

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

IN9

IN10

IN11

IN12

IN13

IN14

IN15

IN16

OUT9

OUT10

OUT11

OUT12

OUT13

OUT14

OUT15

OUT16

RESET-

D[0..7]

RD-

WR-

A0

RESET-

DISP_CS-

DISPLAY

display.sch

D[0..7]

RD-

WR-

A0

RESET-

DISP_CS-

KEYIN

[0..4]

KEYOUT[0..4]

D[0..7]

IN1

IN2

IN3

IN4

IN5

IN6

IN7

IN8

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

DRIV

ER1

DRIV

ER1.SCH

IN1

IN2

IN3

IN4

IN5

IN6

IN7

IN8

OUT1

OUT2

OUT3

OUT4

OUT5

OUT6

OUT7

OUT8

IN9

IN10

IN11

IN12

IN13

IN14

IN15

IN16

OUT9

OUT10

OUT11

OUT12

OUT13

OUT14

OUT15

OUT16

DRIV

ER2

DRIV

ER2.SCH

IN9

IN10

IN11

IN12

IN13

IN14

IN15

IN16

OUT9

OUT10

OUT11

OUT12

OUT13

OUT14

OUT15

OUT16

MicroLab

- Circu

it diagram overview

069-01

1.0

D.E.COCKS

14

12

34

56

78

ABCD

87

65

43

21

D C B A

Title

Number

Revision

Size

A3

Date:

6-N

ov-2002

Sheet of

File:

H:\TEMP\069-02.sch

Drawn B

y:

PE0/D

014

PE1/D

115

PE2/D

216

PE3/D

317

PE4/D

419

PE5/D

520

PE6/D

621

PE7/D

722

PD0/D

823

PD1/D

924

PD2/D

10

25

PD3/D

11

26

PD4/D

12

27

PD5/D

13

28

PD6/D

14

29

PD7/D

15

30

PC0/A

032

PC1/A

133

PC2/A

234

PC3/A

335

PC4/A

436

PC5/A

537

PC6/A

638

PC7/A

739

PB0/A

841

PB1/A

942

PB2/A

10

43

PB3/A

11

44

PB4/A

12

45

PB5/A

13

46

PB6/A

14

47

PB7/A

15

48

PA0/A

16

50

PA1/A

17

51

PA2/A

18

52

PA3/A

19

53

PF7/C

LK

69

PF6/A

S70

PF5/R

D71

PF4/H

WR

72

PF3/LW

R/IRQ3

73

PF2/W

AIT

/IRQ2

74

PF1/IRQ1/C

S5

75

PF0/IRQ0/C

S4

76

PG4/C

S0

97

PG3/C

S1/C

S7

96

PG2/C

S2

95

PG1/C

S3/IRQ7/C

S6

94

PG0/IRQ6

93

P10/A

20

99

P11/A

21

100

P12/A

22

1

P13/A

23

2

XTAL

66

EXTAL

67

RES

62

STBY

64

NMI

63

MD0

57

MD1

58

MD2

61

FW

E60

P35/SCK1/IRQ5

13

P30/TXD0

8

P32/R

XD0

10

P34/SCK0/IRQ4

12

P31/TXD1

9

P33/R

XD1

11

P14/TIO

CA1

3

P15/TIO

CB1/TCLKC

4

P16/TIO

CA2

5

P17/TIO

CB2/TCLKD

6

P20/TIO

CA3

54

P21/TIO

CB3

55

P22/TIO

CC3/TMRI0

56

P23/TIO

CD3/TMCI0

59

P24/TIO

CA4/TMRI1

89

P25/TIO

CB4/TMCI1

90

P26/TIO

CA5/TMO0

91

P27/TIO

CB5/TMO1

92

P40/A

N0

79

P41/A

N1

80

P42/A

N2

81

P43/A

N3

82

P44/A

N4

83

P45/A

N5

84

P46/A

N6/D

A0

85

P47/A

N7/D

A1

86

AVCC

77

VREF

78

AVSS

87

U2

HD64F2318VTE25

X1

20MHz

C12

33pF

C11

33pF

VCC

5

GND

2

WDI

4

RES

3

RES

1

U1

MAX824_EUKT

A0

12

A1

11

A2

10

A3

9

A4

8

A5

7

A6

6

A7

5

A8

27

A9

26

A10

23

A11

25

A12

4

CS1

22

A17

30

WE

29

OE

24

D0

13

D1

14

D2

15

D3

17

D4

18

D5

19

D6

20

D7

21

VCC32

A13

28

A14

3

A15

31

A16

2

A18

1

U4

KM68V4000BLT-7L

RE

42

D0

18

D1

19

D2

20

D3

21

D4

24

D5

25

D6

26

D7

27

R/B

41

CLE

2

ALE

3

WE

4

WP

5

SE

40

CE

43

U5

K9F6408U0B-T

CB0

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

A17

A18

D0

D1

D2

D3

D4

D5

D6

D7

D0

D1

D2

D3

D4

D5

D6

D7

D0

D1

D2

D3

D4

D5

D6

D7

A0

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

A17

A18

VCC

SEN1

SENDIR

SOUT

SIN

SCLK

SOUT_EN-

SEN-

VCC

C1

0.1UF

RTC_DATA

RTC_CLK

TX

RX

KEYOUT0

KEYOUT1

KEYOUT2

KEYOUT3

KEYOUT4

KEYOUT[0..4]

BAT_MON

R18

10R

C2

0.1UF

VCC

KEYIN

[0..4]

KEYIN

0KEYIN

1KEYIN

2KEYIN

3RESET-

VCC

15 3

2 4

U3

BU4S11

VCC

MODE

R1

100K

R3

10k

VCC

VCC

D[0..7]

RD-

WR-

DISP_CS-

A0

RESET-

1

3 2

TR1

DTC114EK

1

3 2

TR2

DTC114EK

MC_ON-

MC_OFF-

M_ON_KEY

M_OFF_KEY

M_OFF_KEY

M_ON_KEY

TEMP_IO

KEYOUT[0..4]

KEYIN

4

KEYIN

[0..4]

C3

0.1UF

C5

0.1UF

C7

0.1UF

+C15

47UF/10V

VCC

D[0..7]

SEN_EN

1 2

J2

BUZZER

R19

1K0

12

13

11

U6D

74LCX32

1 23

U6A

74LCX32

4 56

U6B

74LCX32

9

10

8

U6C

74LCX32

R4

100K

VCC

1 2 3

J1 CON3

R2

10k

VCC

PRNBUSY

Internal Printer.

ONLIN

E

C17

0.1UF

MicroLab

- Circu

it diagram, processor section

069-02

D.E.C

OCKS

1.1

15

12

34

56

78

ABCD

87

65

43

21

D C B A

Title

Number

Revision

Size

A3

Date:

6-N

ov-2002

Sheet of

File:

H:\TEMP\069-03.sch

Drawn By:

D[0..7]

RESET-

RD-

DISP_CS-

WR-

A0

13

VR2

20K

D7

VCC

D6

D5

D4

D3

D2

C9

0.1uF

D1

D0

D[0..7]

VA3

3XD2

31

D5

27

VRD

9

RES

10

N/C11

N/C12

RD

13

RW

14

SEL 2

15

SEL 1

16

A0

20

VDD

21

D0

22

D1

23

D2

24

D3

25

XG17

VA2

4

VA5

1

CS

19

VWR

7

VA4

2

XECL

34

XD0

33

XD1

32

VD6

43

VD4

45

VD2

47

VD0

49

VD5

44

VD3

46

VD1

48

VA15

50

VA13

52

VA14

51

XD18

VA1

5XD3

30

D7

29

D6

28

VD7

42

YSCL

41

YD

40

YDIS

39

WF

38

LP

37

VSS36

XSCL

35

VA0

6

VCE

8

D4

26

VA12

53

VA11

54

VA10

55

VA9

56

VA8

57

VA7

58

VA6

59

N/C60

U24

SED1335F

VA0

VA1

VA2

VA3

VA4

VA5

VA6

VA7

VA8

VA9

VA10

VA11

VA12

VA13

VA14

VA0

VA1

VA2

VA3

VA4

VA5

VA6

VA7

VA8

VA9

VA10

VA11

VA12

VA13

VA14

VD7

VD6

VD5

VD4

VD3

VD2

VD1

VD0

VD0

VD1

VD2

VD3

VD4

VD5

VD6

VD7

VCC

VCC

X4

10MHz

C55

10pF

C56

10pF

L6

22uH

+C57

47UF/25V

R49150K

R25

10K

SW

1

Fb

3

Vin

5

on

4

Gnd2

U9

LT1613

13

D5

ZHCS1000

+C42

33UF/16V

VPWR

-2

+3

1

411

U25A

LM324

-6

+5

7

U25B

LM324

-9

+10

8

U25C

LM324

-13

+12

14

U25D

LM324

R23

10K

R24

10K

R53

91K

R26

10K

R27

10K

VEE

VEE

C58

1uF

123456789

101112131415161718

J8 CON18

XD0

XD1

XD2

XD3

XD3XD2XD1XD0

VCC

C59

1uF

C60

1uF

C61

1uF

C62

1uF

C10

0.1uF

A0

10

A1

9

A2

8

A3

7

A4

6

A5

5

A6

4

A7

3

A8

25

A9

24

A10

21

A11

23

A12

2

CS

20

WE

27

OE

22

D0

11

D1

12

D2

13

D3

15

D4

16

D5

17

D6

18

D7

19

VCC

28

GND

14

A13

26

A14

1

U23

KM62256D

VCC

C27

0.1uF

C26

0.1uF

MicroLab

- Circu

it diagram, display section

069-03

1.0

D.E.COCKS

16

12

34

56

78

ABCD

87

65

43

21

D C B A

Title

Number

Revision

Size

A3

Date:

6-N

ov-2002

Sheet of

File:

H:\TEMP\069-04.sch

Drawn By:

1 2 3 4 5 6 7 8 9 10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

J7 CON25

VP

R42

1K

R22

10K

VCC

C8

0.1uF

R45

10MEG

C13

33PF

C14

33PF

X3

4.0 M

Hz

34

U21B

4069UB

13

12

U21F

4069UB

56

U21C

4069UB

14 7

12

U21A

4069UB

98

U21D

4069UB

11

10

U21E

4069UB

R43

1K

1

32

TR7

FMMT491

R50

2K2

R47

22K

R46

22K

R48

150K

R17

100K

13

VR1

20K 3374X

23

D6 BAS19

VI

3V0

2

GND1

U22

LT1084CT

R51

120 OHM

R52

390 OHM

VP

VPRIN

T

R16

100K

VCC

PRIN

TDATA

ONLIN

E

PRNBUSY

C52

390PF

VCC

C53

47uF

C54

47uF

1

3 2

TR8

FMMT491A

1

2345RN2

10K

PRIN

TACK

VCC

IN1

IN2

IN3

IN4

IN5

IN6

IN7

IN8

IN9

IN10

IN11

IN12

IN13

IN14

IN15

IN16

OUT16

OUT15

OUT14

OUT13

OUT12

OUT11

OUT10

OUT9

OUT8

OUT7

OUT6

OUT5

OUT4

OUT3

OUT2

OUT1

1

2

SW1

P.F

C21

0.1uF

C22

0.1uF

C23

0.1uF

C24

0.1uF

C25

0.1uF

VCC

RESET-

IRQ

2

OSC1

43

PD7

39

TCAP

41

NC

4

OSC2

42

TCMP

38

PA0

12

PA1

11

PA2

10

PA3

9PA4

8PA5

7PA6

6PA7

5

PB0

13

PB1

14

PB2

15

PB3

16

PB4

17

PB5

19

PB6

20

PB7

21

PC0

31

PC1

30

PC2

29

PC3

28

PC4

27

PC5

26

PC6

25

PD0/RDI

32

PD1/TDO

33

PD2/M

ISO

34

PD3/M

OSI

35

PD4/SCK

36

PD5/SS

37

PC7

24

RST

1

NC

3

NC

18

NC

23

NC

40

U12

MC68HC05C9ACFN(44)

MicroLab

- Circu

it diagram, printer processor

069-04

1.1

D.E.COCKS

17

12

34

56

ABCD

65

43

21

D C B A

Title

Number

Revision

Size

B

Date:

6-N

ov-2002

Sheet of

File:

H:\TEMP\069-05.sch

Drawn By:

1

3 2

TR25

FMMT489

1

3 2

TR24

FMMT489

1

3 2

TR23

FMMT489

1

3 2

TR22

FMMT489

OUT1

OUT2

OUT3

OUT4

VP

1

3 2

TR21

FMMT489

1

3 2

TR20

FMMT489

1

3 2

TR19

FMMT489

1

3 2

TR18

FMMT489

OUT5

OUT6

OUT7

OUT8

VP

IN1

IN2

IN3

IN4

IN5

IN6

IN7

IN8

C63

0.1UF

C18

0.1UF

1

3

24

5

D7

UMN1

1

3

24

5

D8

UMN1

1 2 3 4

8 7 6 5

RN3

1 2 3 4

8 7 6 5

RN4

MicroLab

- Circu

it diagram, printer driver 1

069-05

1.1

D.E.COCKS

18

12

34

56

ABCD

65

43

21

D C B A

Title

Number

Revision

Size

B

Date:

6-N

ov-2002

Sheet of

File:

H:\TEMP\069-06.sch

Drawn By:

1

3 2

TR17

FMMT489

1

3 2

TR16

FMMT489

1

3 2

TR15

FMMT489

1

3 2

TR14

FMMT489

OUT9

OUT10

OUT11

OUT12

VP

1

3 2

TR13

FMMT489

1

3 2

TR12

FMMT489

1

3 2

TR11

FMMT489

1

3 2

TR10

FMMT489

OUT13

OUT14

OUT15

OUT16

VP

IN9

IN10

IN11

IN12

IN13

IN14

IN15

IN16

C6

0.1UF

C4

0.1UF

1

3

24

5

D9

UMN1

1

3

24

5

D10

UMN1

1 2 3 4

8 7 6 5

RN5

1 2 3 4

8 7 6 5

RN6

MicroLab

- Circu

it diagram, printer driver 2

069-06

D.E.COCKS1.1

19

12

34

56

78

ABCD

87

65

43

21

D C B A

Title

Number

Revision

Size

A3

Date:

6-N

ov-2002

Sheet of

File:

H:\TEMP\069-14.sch

Drawn By:

R36

200K

R7

100K

TP2

GND

L2 3.3uH

R30

68R

L1 3.3uH

MC_OFF-

BAT_MON

ON/O

FF_KEY

BATTERY

J3

POWER

Battery Charger

BAT_MON

C28

0.1UF

C29

0.1UF

VBAT

VPWR

REGULATED

POW

ER SUPPLY

TP3

GND

D5

Q1

CLK

3

Q2

R4

S6

VCC14

GND7

U11A

4013

1 23

U10A

4093

C30

0.1UF

R6

100K

5 64

U10B

4093

8 910

U10C

4093

9.0V

R8

100K

+C43

100UF/16V

C31

0.1UF

MC_ON-

R5

100K

L3

22uH

+C39

33UF/16V

R29

82K

R28

13K

V9IN

T

9V

SEPIC

CONVERTER (0.9 - 10V)

SW

1

Fb

3

Vin

5

on

4

Gnd2

U7

LT1613

L4

22uH

+C16

47UF/10V

R32

68K

R31

39K

VCC

C44

1uF

SEPIC


SW

1

Fb

3

Vin

5

on

4

Gnd2

U8

LT1613

L5

22uH

VDD

VSS

D9

Q13

CLK

11

Q12

R10

S8

U11B

4013

13

D3

ZHCS1000

13

D4

ZHCS1000

+C41

33UF/16V

+C40

33UF/16V

R33

100R

TR4

ZXM62P02E6

TR5

ZXM62P02E6

R20

10K

TP1

GND

1

3 2

TR6

FMMT491

R35

1K

R34

10K

12

13

11

14 7

U10D

4093VBAT

13

D11

ZHCS1000

MicroLab

- Circu

it diagram, power supply

069-14

1.0

D.E.COCKS

L7

22uH

+C50

33UF/16V

R41

100K

R15

10K

SEPIC


SW

1

Fb

3

Vin

5

on

4

Gnd2

U26

LT1613

13

D12

BAS21

+C49

33UF/16V

1 3

D13

BAS21

1

2

3

BAT1

BAT7.2V

VBACK

1 3

D1

ZHCS1000

D14

DE5SC4M

VPRIN

T

F1

MIC

ROSMD035-02 12

D15

U1JC

44

R44

1K

C51

1uF

23

D16

ZHCS1000

20

12

34

56

78

ABCD

87

65

43

21

D C B A

Title

Number

Revision

Size

A3

Date:

6-N

ov-2002

Sheet of

File:

H:\TEMP\069-15.sch

Drawn By:

RIN

8

TIN

11

V+

3

V-

7

RO

9

TO

13

C1+

2

C1 -

4

C2+

5

C2 -

6

EN

1

FON

12

INV

10

FOFF

16

14

15

U17

MAX3221CAE

C35

0.1UF

C34

0.1UF

C33

0.1UF

C32

0.1UF

VCC

VCC

C48

33PF

X2

32.768KHz

VBACK

RTC_CLK

RTC_DATA

RX

TX

C37

0.1UF

C36

0.1UF

VCC

RTC_CLK

RTC_DATA

RX

TX

R21

10K

VCC

VB

7

SCL

6

SDA

5

X11

X22

VDD

8

VSS

4IN

T3

U18

X1243S8

R40

220K

R39

10M

C47

33PF

VCC

VCC

R14

10K

VCC

GND

3DQ

2VDD

1U19

DS18S20

R13

4K7

VCC

VCC

TEMP_IO

Tem

perature Sen

sor

1

24

35

J6 MIN

I_DIN

_4

MODE

VCC

C38

0.1UF

KEYIN

[0..4]

ON/O

FF_KEY

13

11 9 7 5

14 3

10 8

12

32

1ESC

9

54

DEL

0

87

ENTER

OFF

ON

4

6. -

6 12

F1

F2

F3

F4

J5KEYPAD-M

L3

KEYOUT[0..4]

VCC

KEYIN

0

KEYIN

1

KEYIN

2

KEYIN

3

KEYIN

4

KEYIN

[0..4]

KEYOUT0

KEYOUT1

KEYOUT2

KEYOUT3

KEYOUT[0..4]

9V

1 23456

RN1

100K-R

N

KEYOUT4

C19

0.1uF

C20

0.1uF

MicroLab

- Circu

it diagram, RS232, RTC and key

pad

interface

069-15

1.0

D.E.COCKS

21

12

34

56

78

ABCD

87

65

43

21

D C B A

Title

Number

Revision

Size

A3

Date:

6-N

ov-2002

Sheet of

File:

H:\TEMP\069-16.sch

Drawn By:

R37

4K7

R38

4K7

VCC

41 2

5 3

U14

BU4S584

VCC

41 2

5 3

U13

BU4S584

VCC

2 3

1

TR9

DTB113EK

1

3 2

TR3

DTC114EK

1 2 3 4 5 6

J4 RJ11

2 3

D2

ZHCS1000

9V

VCC

C46

1NF

C45

1NF

SEN_EN

R9

100K

SCLK

SIN

R10

100K

SEN-

SEN1

SOUT

4 5

1

2 3

6

U16

MAX4544EUT-T

SOUT_EN-

VCC

R11

100K

VCC

V9IN

T

PRIN

TDATA

4 5

1

2 3

6

U15

MAX4544EUT-T

PRIN

TACK

To Internal Printer.

VCC

R12

100K

VCC

D5

Q1

CLK

3

Q2

R4

S6

VCC14

GND7

U20A

4013

D9

Q13

CLK

11

Q12

R10

S8

U20B

4013

SENDIR

VCC

MicroLab

- Circu

it diagram, sensor interface

1.0

069-16

D.E.COCKS

MicroLab Service Manual - Eolys · 1 MicroLab Service Manual 069-17 Revision 1.0 November 2002...

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Transcript of MicroLab Service Manual - Eolys · 1 MicroLab Service Manual 069-17 Revision 1.0 November 2002...