SERVICE MANUAL AEP Model
Transcript of SERVICE MANUAL AEP Model
– 1 –
SERVICE MANUAL AEP Model
XR-5W497RB
FM/AM CASSETTE CAR STEREO
MICROFILM
Notes on Chip Component Replacement• Never reuse a disconnected chip component.• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Dolby noise reduction manufactured under license from Dolby Labo-ratories Licensing Corporation.“DOLBY” and the double-D symbol a are trademarks of DolbyLaboratories Licensing Corporation.
XR-5W497RB
– 11 – – 12 –
3-2. BLOCK DIAGRAM — TAPE SECTION —
R-CH
FWD
R-CH
REV
48 181714
37
46
EQAMP
DOLBYNR
21
1916
43
AUTOMUSIC
SENSOR
DOLBYLEVELL-CH
R-CH
MS
ON/OFF
MS-GVRADIO/TAPE
70U/120UR/F
RV431
41
EQ AMP/DOLBY NRIC401
TAPE L
342735
8
9
36
2833
SUB SYSTEM CONTROLIC201 (2/2)
F/RMETALDOLBY
AMS
AMS GAINMUTE
37 INSERT30 SCL31 25SDA32 CRQ26 RESET
29 40
41
TAPE ON
OSC 1
OSC 2
11
12
XI
XO
70E2D68E2CK
19TUNER ON
42CDC-CTL
INDICATOR
D OUT
D IN
CLK
DATACLK
POWERCONTROLQ231,232
56
EEP ROMIC241
LEDDRIVEQ81
CDC DATAIN
Q703
CDC CLKIN
Q704
CDC DATAOUTQ702
POWERSWITCH
Q911,912
X20232.768kHz
X2018MHz
BATT
BATT
BATT
8.5V REGQ233
TU +B
TU 8.5V
D81
TA 5V
04
TA +B
CN451
37
14568
INSERTS-CLK
SW+BSW5V
S-DATAC-REQRESET
POWERCONTROLQ450,451
BATT
5V REGQ452
TA +B
TA 5V
39
CDC
ISO701 (3/5)
16
17
14
13
CDC +B
CDC-CLT
CDC DOUT
CDC DIN
15CDC CLK
TUNERSECTION A
Signal path : PB
TAPEMECHANISM
– 13 – – 14 –
XR-5W497RB
2-3. BLOCK DIAGRAM — TUNER SECTION —
R-CH
J101(ANTENNA)
2
1
16
1214
1319
20
18AM ANT
FM ANT
8 FM +B
9 +B
10 AM +B
L CH
R CH
AM DETAM IF
SEEKS-METER
SD
5VT22ST-IND11AM IFC21FM IFC6VCO
4DX/LO15WID/NAR
23FM DET
24FORCEDWID/NAR
TUNER UNITTU101
R-CH
IC581
3 1
IC561
12 8
IC521
32
1
Q571
Q140
3 916
AM NOISECANCELIC141
1 73
2 4
5
SOURCE SELECTIC511
R-CH
ISO701 (1/5)
11
19
20
7
12
1112
13
15
14
9 10
SOURCE SELECTIC531
TAPESECTIONA TAPE L
AUDIO L DSPSECTION B
BATT HCHECKQ253
BATT LCHECK
Q251,252
5V REGQ803
POWERCONTROLQ801,802
RESETIC802
POWERCONTROLQ804,805
POWERCONTROLQ236,237
BATT
D252
D251
Q254
2 1VDD B
VDD A
162314
1743
18
TU MUTE
69 SEEK56
5755
S-METER (AM)
S-METER (FM)MULTI PATH
SD
B/U DOWNRESET
VDDP-ON
WAKU-UPBUSY
44CLK45D-IN46D-OUT
CED INCLK
D OUT
XOUT
X IN
15GALA53S-CONTACT
65PDWN
AOUT
XT
XT
SAS SASTASSADCSDOUTDINWERWCK
TASSADX
CSID IN/OUT
WERWCK
66RESET80WR1RD79CE
D0-3 3-6
VDD D
VDD A VDD C
MUTECONTROLQ573,574
S-METERCONTROLQ171,172
38
CE73DO75CLK74DI
AOUTMONO/STEAM IFFM IF 76
RV171S-METER
SUB SYSTEM CONTROLIC201 (1/2)
WID/NAR 1WID/NAR 2
7778
SYNC52ID51D IN50CLK62D OUT63CE61SYR64
ANT ON24
FM MS72
NOISE ON67
NOISE DET54
2345
2291314
FM OSC17AM OSC16DX/ILO11WID/NAR8
1
24FM ON12AM ON11
MPX SYNCID
DOCLDICE
SYR
XO
XI
X1207.2MHz
X2104.332MHz
WID/NARCONTROLQ151,152
Q161
POWERCONTROL
Q101
POWERCONTROL
Q103
FM 8.5V
AM 8.5V
TU8.5V
8.5V REGQ130
VT +B
POWERCONTROLQ136,137
ANT +B
TU +B
RDS MODULATORIC210
2 18192021222324
12
13
NOISEDET
IC1815 1
APSIC3031 5
Q181
RDS
4
35
53545556
26
1-4
18
47
48
3637394044
4650
TIM CONTROLIC301
X3014.195MHz
221823171511162
TIR DEMODIC302
BATTVDD BVDD A
31
1517
7273 997069 MAIN 1
MAIN 2SUB 2SUB 1
B/U CHECKRESET
VDD P-ON
65 WAKU-UP74 BUSY66 CLK68 D-OUT67 D-IN
82 GALA18 S-CONTACT
AUSE
L
DET
16S-REMOTE
58ANT OPEN
98HOLD
39TEL MUTE
19KLINE/TEL
37RX
38TX
88MODE
26ILL DUTY
SAFECONTROLQ861-863
TEL MUTEDET
Q785,786
SECURITYTX
Q827-829
POWERCONTROLQ825,826
ILLMIDETQ901
GALAQ703
S-CONTACT
Q714
LEDDRIVEQ31,32
ANT SHORTDETQ135
57ANT OPENANT OPEN
DETQ131-134
SAFE DETIC841
Q815
1 2
BATTF701 35
33
+B
SAFE
30TEL-MUTE
31K-LINE
29GALA
34ILLUMI
32S-CONTACT
SAFE
SYSTEM CONTROLIC801 (1/2)
1
4
RX
TX
6
K-LI
NE
ISO701 (2/5)
ILL DUTYDSP
SECTIONC
Q902
Q906
BATT
BATT
D812
D31-51, 53-56(KEY BACK LIGHT)
S-REMOTE
CDC-L
CDC-R
TEL (+)TEL (–)
04
FM 8.5V
TU 8.5V
AM 8.5V
S-REMOTE
Q705
PLLIC211
PWN
D0-3
RESETWRRDCE
LIN
D802
Signal path : FM : AM : CD
K-LINEIC821
– 15 – – 16 –
XR-5W497RB
2-4. BLOCK DIAGRAM — DSP SECTION —
217
LINEAMPIC602TUNER
SECTION
BAUDIO L ADC DAC
DSP
FL
DACRL
9293
36302935
5 6 34 37 33 26 27
84
81
PD RESE
T
SI SO SCLK
X60116.9344MHz
LPFIC6063 1
LPFIC6043 1
AUDIO DSPIC603
20
8 7 9
15VOL
VOL
DATA
CE CLK
DATA CE CLK
8 7 9
20 15
ELECTRONIC VOLUMEIC605
ELECTRONIC VOLUMEIC606
Q711
Q761
MUTECONTROLQ781,782
DIAGCONTROLQ971,972
AMP MODECONTROLQ960-964
AMPIC721
DIAGNOSTICDETECT
IC301,302
56
SYSTEM CONTROLIC801 (2/2)
AUDIO MUTE34BEEP DA78AMP DIAG81AMP MODE29SP RL OPEN64SP(R) SHORT61SP(F) SHORT
63SP(R) CLIP60SP(F) CLIP
27SP FL OPEN
43CLK42DO41ENO
22ENI
EXAMP ON
DAR52CLK53CE55DAF54
SCLK48DIN46DOUT47RST51PD35WRDY45CS44WRQ50DRDY49
ILLUMI ON89ROT A92ROT B93ON-KEY20TP-KEY86TIM/EJ21
TIM-KEY85EJ-KEY84
KEY-REQ1LCD ON5CE6DATA7CLK8
80
EXAMP NG 76
P-ON 32
+B-AD 25
AUDIO ON 79
X2 10
X1 11
DSP
3 12
AMPIC771
3 12
Q973
Q975
MODE
1
11
46
12DIAG
POWER AMPIC901
MODE
1
11
46
12DIAG
POWER AMPIC902 IC9413
1
1
IC9213
2ND
DISP
LAY
Q707
Q701
POWERCONTROLQ810,811
EXT AMPCHECKQ816
+B DETD819
BATT
BATT
BATTBATT
D815
9V REGIC811
1 2
4 5V REGQ808
POWERCONTROLQ806,807
S9V
S5V
AUD +B
D816
X8014.915MHz
S1S2S3(ON)RE1
(ROTARY ENCODER)
TPSET
TIM
(EJECT)
KEY-REQLCD OFF
STBDATA
SCK
LCD1LCD DRIVER
IC1LCD1
LIQUID CRYSTALDISPLAY PANEL
KEY-INMATRIX
S4-25, 27
1614191817
93-1
0032
-90
26-3
1
22-25
COM0-7
SEG7-65
SEG1-6
KEY 1-4
D20-29(LCD BACKLIGHT)
LEDDRIVEQ21,22
LEDCONTROL
Q905ILL DUTYTUNER
SECTIONC
2524
FL (+)FL (–)
2324
FR (+)FR (–)
ISO701 (4/5)
R-CH
R-CH2122
RR (+)RR (–)
2728 RL (+)
RL (–)
8
DOUTCLK
910
CE4
FL3
FR1
RLRRAMP-REM
2
6
SPEAKER
R-CH
R-CH
2NDDISPLAY
LINE OUT
ISO701 (5/5)Q821
Q706
Q705
DIAGDETQ941
DIAGDETQ921
04
DRDYWRQCSWRDY
Signal path : FM
– 46 –
• IC Block Diagrams
IC141 HA12181FP
IC210 LC72720M
IC531 MC14052B
IC821 L9637D
IFAMP LPF
IF AGC
DETECTOR
PULSEDETECTOR
HPF1 LPF AFAMP
AFAGC
OR
HPF
NOISEAGC
PULSEDETECT
1
PULSEDETECT
2
GATE PULSEGENERATORREFERENCE
CURRENTCIRCUIT
SW2
SW1
REFERENCEVOLTAGECIRCUIT
PHASECURRENT
LEVELDIFFERENCEDETECTION SW3
HIGH PASS AMP(WAVEFORM COMP.) SW4
REFERENCECURRENT CIRCUIT
(WAVEFORM COMP.)SW5
BUFFERAMP
11 10 91214 131516
1 2 4 53 6 7 8
GATE PULSE 2
GATE PULSE 1
VCC
GND
IFAG
C
BIAS
1
AF-IN
BIAS
2
PHAS
E
HOLD
GND HP
IF-IN
AFAG
C
IFDE
T
VCC
VTH
GATE
WF
AFOU
T
SYR
CEDI
DO
CL
RDS-ID
SYNC
T7T6VSSD
VDDD
XIN
ANTIALIASINGFILTER
57KHzBPF
(SCF)
PLL(57KHz)
CLOCKRECOVERY(1187.5Hz)
OSC/DIVIDER
DATADECODER
SYNCDETECT-1
SYNCDETECT-2
CCBRAM(24 BLOCK DATA)
MEMORY CONTROL
SYNC/EC CONTROLLERERROR CORRECTION
(SOFT DECISION)
SMOOTHINGFILTER
TEST
CLK(4.332MHz)
VREF
VREF
MPXIN
VDDA
VSSA
FLOUT
CIN
T1T2T3T4T5
XOUT
2
3
4
5
6
7891011
12
1
2223
24
21
20
19
18
1716
13
15
14
+
–
REFRENCEVOLTAGE
1 2 3 4
5678
1.75V
DRIV
ER
DRIV
ER
DRIV
ER
RX TXVCCLO
LI GND
KVS
+ – + –
+ –
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
2X0
X2
VDD
X1
XCOM
X0
X3
A
BVSS
VEE
INH
2X1
2X3
2XCOM
2X2
– 47 –
IC121 LC72146M
IC561 TA2050F
REGISTER
1XOUT
2CE
3DI
4CLK
5DO
6
7
8WIDNARW
9MONO STE
10DX.LO
11AM.ON
12FM.ON
24 XIN
23 VSS
22 AOUT
21 AIN
20 PD0
19 PD1
18 VSS
17 FM.OSC
16 AM.OSC
15 VDD
14 FM.IF
13 AM.IF
CCBI/F
REFERENCEDIVIDER
DATA SHIFT
LATCH
PHASE DETECTORCHARGE PGMP
12BITS PROGRAMMABLEDIVIDER
SWALLOW COUNTER1/16,1/17 4BITS
POWER ONRESET
UNIVERSALCOUNTER
16
N.C
15
R-IN
(–)
14
N.C
13
R-IN
(+)
12
L-IN
(+)
11
N.C
10
L-IN
(–)
9
N.C
+– +–
1
R-OU
T
2
VREF
3
N.C
4
GND
5
N.C
6
VCC
7
N.C
8
L-OU
T
V REF
– 48 –
IC241 S-24C04AFJA
IC301 MSM6688GS-2K
56
SDA
8 VCC
SCL
7 TEST
START/STOP
LOAD
LOAD
R/W
INCCOMP
DIN
DOUT
DETECTION CIRCUIT
HIGH VOLTAGEGENERATOR
SERIALCLOCK
CONTROLCIRCUIT
DEVICE ADDRESSCOMPARATOR
YDECODER
ADDRESSCOUNTER
DATA REGISTER
SELECTOR
X DE
CODE
R
DATA OUTPUT ACKNOWLEDGE
OUTPUTCONTROL CIRCUIT
EEPROM123
A0A1A2
4GND
1234
42414039383736
3231
3029
353433
567
8910
121314
11
15 16 17 18 19 20 21 22 23 24 25 26 27 28
434445474849505253545556 51 46
MCU I/F
STATUSREGISTER
TESTCIRCUIT
12BITADC LPF
12BITDAC
+ - + -
SGCIRCUIT
ADDRESSCONTROLLER
ADPCMANALYZER/
SYNTHESIZER
TIMINGCONTROLLER
OSC DATAI/O
REGISTERCONTROLLER
D0D1D2D3
BUSYRPMVPM
TESTTESTTEST
TESTMCUM
CE
ACON
CS3CS2CS1SADXSADY
PDWNTEST
AGND
RSEL2RSEL1
DGND
TEST
TEST
ADIN
FOUT
AOUT FIN
AMON
DVDD
AVDD SG SG
C
LOUT
LINE
MOU
T
MIN
CE WR
RD RESE
TNA
R
RWCK
DVDD
XT XT WE
DROM
DI/0
CS4
TASSAS
MON
– 49 –
20 19 18 17 16 15 14 13 12 11
1 2 3 4 5 6 7 8 9 10
1dB STEPVOLUME
8dB STEPVOLUME
1dB STEPVOLUME
8dB STEPVOLUME
VCTBUFFERLATCH
SHIFTREGISTER
LATCHCONTROL
ZCDET
+–
+–
INP
1IN
N 1
VCT
1
INAO
1
VRIN
1
OUT
1
N.C.
GND
VCT
VCC
INP
2
INN
2
VCT
2
INAO
2
VRIN
2
OUT
2 CE
DATA CLK
INIT
TIMINGGENERATOR
8,388,608DATAREGISTER
COLUMN DECODER
COLUMN ADDRESSCOUNTER
ROW
DECO
DER
ADDR
ESS
MUL
TIPL
EXER REFRESH ADDRESS
COUNTER
ROW ADDRESSCOUNTER
ROW ADDRESSREGISTER
REFRESH TIMER
I/O C
ONTR
OL
WRITE CLOCKGENERATOR
2345
11
12
13
109
125
24
2322
18
17
16
1514
26TESTRWCK
NCTESTTEST
TESTTEST
DIN
NC
VSS
VCCRS/A
RFSH
SADSAS
TAS
CS
WE
DOUTNC
+–
+–
+–
43EQ-OUT
44EQ-OUT-M120/70
120/70
45NFI (L)
46RIN (L)F/R
T/R
T/R
F/R
47VREF (L)
48FIN (L)
49GND
50GND
51FIN (R)
52VREF (R)
53RIN (R)
54NFI (R)
55EQ-OUT-M
56EQ-OUT
28 NOI
27 MS-GND
26 MA-OUT
25 MSI
24 MS-DET
23 MS-VCC
22 VCC
21 MS-OUTMS AMP
20 D-GND
19 MS-GV
18 R/F
17 70U/120U
16 RADIO/TAPE
15
42
N.C
41
TAI (
L)
40
RIP
39
RAI (
L)
38
N.C
37
PB-O
UT (L
)
36
N.C
35
N.C
34
N.C
33
NR-D
ET (L
)
32
N.C
31 30
MS-
VREF
29
FFI
1
N.C
2
TAI (
R)
3
BIAS
4
RAI (
R)
5
N.C
6
PB-O
UT (R
)
7
N.C
8
N.C
9
N.C
10
NR-D
ET (R
)
11
N.C
12 13
N.C
14
ON/O
FF
DET
DOLBY B NR (L)
DOLBY B NR (R)
LPF
+–
IC302 MSM6684JSDR1 IC605, 607 CXA1846N
IC401 HA12164
– 50 –
81
NC 82
8384
VRDAL 85
DZF2 76
DXF1 77NC 78
AVB 79A-OUT-R2A-OUT-L2
A-OUT-R1A-OUT-L1
80
AVSSAVDD
VRDAHNC
AINR-
86878889
9091929394VCOM
AVDDVRADH
9798
99AVB100NC
VRADLAVSS
9596
2726
28
2930313233
3534
36373839404142434445464748
4950
63 626566 64 61 60 59 58 57 56 55 54 53 52 51
1 2 3 4 5 6 7 8 9 10 11 12 13
SDOU
T2
DVB
DVB
SDIN
2
SDAD
TEST
I1
TEST
IO1
TEST
I2TE
STIO
3
OPCL
PDDA
PDAD PD
RESE
T
SDDA
SDDA
2
14 15 16
SDOU
T3
17
SDOU
T1
18
SDIN
1
19
SMOD
E
20
BCLK
21
LRCK
22
CLKO
23
DVDD
24
DVSS
25
75 74 73 72 71 70 69 68 67
ADC
SDATALRCKBCLKMCLK
VREFL
DZF
VREFH
AOUTRAOUTL
DADC2
A0
WERASCECASRF
SO
DRDYRDY
SISCLK
RQCS
A1A2A3A4
A5A6
A7
A0
SDOUT2
SDIN2
SDOUT3
WERASCECASRFSO
DRDYRDYSISCLK
XTIXTO
DVDD
CSWRQDVSS
DVDD
A1A2A3A4
A5A6
A7
DVSS
DVDD
A16
A15
A14
A13
A12
A11
A10
A9I07
DVSS
DVDD
DZFS
ETDV
SSDV
DD
DVB
DVB
I06
I05
I04
I03
I02
I00
I01
I07
I06
I05
I04
I03
I02
I00
I01
A8
A16
A15
A14
A13
A12
A11
A10 A9 A8
DSP
XTIXTO
BCLK
SDOU
T1SD
IN1
SMOD
E
MCL
K
BCLK
LRCK
CKLO
LRCK
DSPCLKAD/DACLK
Divider
DAC1
SDATALRCKBCLKMCLK
SDATA
LRCK
BCLK
MCLK
VREFL
VREFL
AINL+AINL-AINR+
AINL+AINL-
AINR+AINR-
DZF
VREFH
VREFH
AOUTRAOUTL
INVERTAMP
NON-INVERTAMP
POWERSTAGE
POWERSTAGE
1 2 3 4 5 6 7 8 9 10
INVERTAMP
MUTECONTROLCIRCUIT
DIAGNOSTICCIRCUIT
POWERSTAGE
MUTESWITCH
VP
STANDBYSWITCH
IN-1
GND-
1OU
T-1
(+)
VP1
S-GN
D
VP2
11
MOD
E
12
V-DI
AG
13
IN-2
OUT-
2 (+
)GN
D-2
OUT-
2 (–
)OU
T-1
(–)
NON-INVERTAMP
POWERSTAGE
+ –
IC603 AK7712A
IC901, 902 TDA8563AQ