Sony CDX-GT81UW / CDX-GT860U Service Manual ▷ View online
21
21
CDX-GT81UW/GT860U
CDX-GT81UW/GT860U
5-1. BLOCK DIAGRAM — MAIN SECTION —
SECTION 5
DIAGRAMS
J991
AUX
AUX R-CH
PLAG IN
1 ANT
SCL
SDA
SDA
CDMON
CDON
7 AUX-LCH
ELECTRONIC VOLUME
IC401
PJ501
(ANTENNA)
TUX501
(TUNER UNIT)
I2C BUS CONTROLLED POWER AMP/
MULTIPLE VOLTAGE REGULATOR
IC201
SYSTEM CONTROL
IC303 (1/2)
CNP101
9 AUX-RCH
BATT
5 CD-LCH
6 CD-RCH
6
S-METER
7
TU MUTE
16
E2P SCL
17
E2P SDA
83 VSM
5
QUALITY
82 QUALITY
16 CDM ON
49 CD ON
50 Z DET
49 CD ON
50 Z DET
11
VDD+5V
4
L-CH
3
R-CH
BU+3.3V
10
VCC
21 TUNER ATT
23 EECKO
22 EESIO
22 EESIO
CD ON
CDM ON
CD L
CD R
3 TU-LCH
4 TU-RCH
CD-RCH
TU-RCH
AUDIO+8.3V
AUDIO+8.3V
19
SOUT
18
DATA
17
CLK
5
3
3
OUT FL+
OUT FL–
9
7
7
OUT RL+
OUT RL–
29
27
27
AMP REM
R-CH
ANT REM
BATT
30
37
37
AUDIO+B
35
VP
20
VP1
6
VP2
BU+B
31
33
33
SERVO3.3V
MECHA6V
34
ILL
28
MUTE
SOUT
E DATA
E CLK
E MUTE
2 SDA
AUDIO+8.3V
BU+5V
SERVO+3.3V
MECHA+6V
MECHA+6V
ILL+10V
4 SCL
SDA
SCL
16 AC_GND
22 STB
25 DIAG
25 DIAG
15
13
7
10
12
11
16
1
9
2
4
3
5
6
29
30
30
SCL
SDA
SCL
SDA
SCL
SDA
35
E MUTE
ATT
27
I2C CKO
28
25
I2C SIO
57
BU IN
54
TEST IN
12 IN FL
FL+
FL–
RL+
RL–
FR+
FR–
RR+
RR–
AMP-REM
ANT-REM
ACC
TEST
11 IN RL
MUTE
Q171
AUDIO OUT
FRONT
MUTE CONTROL
SWITCH
Q401,402
5
UNI SI
73
UNI SO
4
UNICKO
3
BUS ON
56
SYS RESET
12
B CHK
11
DATA OUT
10
DATA IN
8
CLK IN
9
BUS ON
13 RST
RESET
STBY
STBY
3
5
6
6
8
4
2
3
3
1
BATT
CLK 4
DATA I/O
1
BUS ON
2
RST
SYSRST
52
ACC IN
ACCESSORY CHECK
Q102
BATT
BATT
BATTERY
CHECK
Q101
BUS INTERFACE
IC110
MUTE
Q470
MUTE
Q181
D401
F901
R-CH
26
25
25
OUTF2
OUTF1
22
OUTS1
R-CH
24
23
23
OUTR1
OUTR2
R-CH
L
R
PJ401 (2/2)
AUDIO OUT
REAR
R-CH
L
R
(SUB OUT)
L
R
BUS
CONTROL IN
D301
D128
D105
DISPLAY
SECTION
A
DISPLAY
SECTION
B
TH100
CNP102
7
BATT
TUNER+5V
REG
Q501
15
E2PVDD
13
TU-SCL
14
TU-SDA
BU+5V
BU+3.3V
REG
IC301
ILL
51
ILL IN
ILLUMINATION CHECK
Q121
TEL ATT
53
TEL ATT
TELEPHONE ATTENATION
CHECK
Q103
14
40
AMP DIAG
41
AMP STB
20
BEEP
85
SP IN
36
E DATA
37
E CLK
E MUTE
SOUT
E DATA
E CLK
BUS
AUDIO
IN
BUS-RCH
L
R
PJ401 (1/2)
1 BUS-LCH
2 BUS-RCH
BUS-RCH
CD-RCH
AUX-RCH
TU-RCH
ZMUTE
47 EJECT OK
EJECT OK
45 WAKE UP OUT
W/U OUT
33 CD TX
CD TX
34 CD RX
CD RX
46 OPEN REQ
OPEN REQ
Z MUTE
SYS RST
MECHA+6V
BU+3.3V
SERVO+3.3V
BU IN
RXD
TXD
DR+6V
BU+3.3V
A+3.3V
D+3.3V
CDON
CDMON
ZMUTE
EJECT OK
A ATT
OPEN REQ
WAKE UP
SYS RST
BU CHK
CD TX
CD RX
EJECT OK
OPEN REQ
W/U OUT
CD
MECHANISM
UNIT
(MG-101U)
(1/2)
6
BU CHK
MUTE
Q332,333
SIGNAL AMP
IC402
AUDIO AMP
IC470
17
19
5
3
OUT(RL)
OUT(FL)
RL+
FL+
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: BUS
: AUX
: AM
(Page 22)
(Page 22)
22
22
CDX-GT81UW/GT860U
CDX-GT81UW/GT860U
5-2. BLOCK DIAGRAM — DISPLAY SECTION —
STBY
MAIN
SECTION
A
MAIN
SECTION
B
84
93
98
99
88
11
13
9
8
SYSTEM CONTROL
IC303 (2/2)
DC–DC
CONVERTER
IC620
DISPLAY CONTROL
IC901
KEY IN0
SYS SO
SYS SI
DISP CE
LAT TA2 OUT
VDD1
VDD2
FL DAT1
FL DAT2
FL DAT3
FL CLK
FL CLK IN
FL CLK OUT
GCP TAO OUT
BK TA3 OUT
GCP TA4 IN
DISP SI/RX
DISP SO/TX
24
71
PLAG IN
93
DIM
92
ILL RED
KEY ACK0
78 RE 0
77 RE 1
XOUT
XIN
XCOUT
XCIN
RC IN0
KEY ACK2
KEY ACK2
10
80
RESET
TEMP TR
MOT+
29
1
30
100
SYS CLK
DISP CKO
31
SYS CE
KEY 2
86
85 KEY 1
LAT
FL VDD+3.3V
FL VDD+55V
FL+1V
FL+4.3V
SI1
SI2
SI3
CLK
7
90
CNVSS
RESET
FL VDD+3.3V
PLAG IN
D303
CNVSS
DISP RESET
91
NOSE SW
7
10
XOUT
XIN
11
13
BU+3.3V
2
FSW IN
58
FSW OUT
BU+3.3V
74
FLD ON
BU+3.3V
FIN
RIN
FGND
BATT
BU+5V
X301
32.768kHz
X302
6MHz
X901
6.75MHz
S901
(NOSE DET)
KEY
MATRIX
LSW901 (1/2)–915 (1/2)
S903,904,
906 (2/2)
ROTARY
ENCODER
S906 (1/2)
RESET
RESET
IC302
RC IN1
ILL+10V
LSW901 (2/2)–915 (2/2)
LED920,922,
923,924,926,
927
923,924,926,
927
7
LED DRIVE
Q922
LED DRIVE
Q920,921
S902
RESET
FL900
VACUUM
FLUORESCENT DISPLAYS
14
17
F1
1
I
3
F2
18
I
20
89
SIRCS
CT
BATT
BATT
OUT
IN
FB
5
VCC
72
FL ON
6
4
1
2
CS
91
ILL BLUE
T620
DC–DC
CONVERTER
TRANSFORMER
D623
D620,621
D622
FL+4.3V
USB D–
USB D+
L901
FL+1V
FL VDD+55V
TRANS
SWITCHING
DRIVE
Q620
TH301
OPEN/CLOSE
MOTOR DRIVE
IC702
CNJ101
(REMOTE IN)
64
3
9
7
1
MOT–
65
4
FP IDET
OUT1
OUT2
VCC
79
6
MOTOR ON
63
P SNSR
68
CLOSE SW
66
OPEN SW
67
1 DST SEL0
95 DOOR IND
FL VDD+3.3V
S301
FREQUENCY
SELECT
BU+3.3V
GT860U
10K
9K
TRANS ON/OFF
DETECT
SWITCH
Q641
DC–DC
CONVERTER
CONTROL
Q621,622
69
USB ON
75
HS EN
76
HS OC
8
1
VCC
1 VIN
2
SW
BATT
5
FB
6
INV
7 SYNC
4 EN
IN
5 OC
2 AIN–
AOUT
3 AIN+
USB B+
SWITCH
Q651,652
FL ON/OFF
CONTROL
SWITCH
Q624
B+ CONTROL
SWITCH
Q623,642
FL B+
SWITCH
Q301,302
MOTOR+9V
REG
IC703
B+ SWITCH
Q702,703
P SENSOR
DETECT
Q701
SWITCH
BOARD
FP I DET
AMP
IC701
DOOR INDICATOR
LED DRIVE
Q134
LED990
DISC
INDICATOR
REMOTE CONTROL
SIGNAL RECEIVER
IC903
NOSE SW
DETECT SWITCH
Q303
12
33
6
99
5
3
4
35
7
5
100
GCP
28
11
BK
13
22
19
M904
(OPEN/CLOSE)
55
86
87
OUT
6
•
7
•
8
2
•
3
USB D–
USB D+
USB D+
GND
4
3
(USB)
2
CN903
V BUS
1
USB CONTROL
IC621
DC-DC
CONVERTER
IC602
USB CONTROL
IC601
CD
MECHANISM UNIT
(MG-101U)
(2/2)
(Page 21)
(Page 21)
23
23
CDX-GT81UW/GT860U
CDX-GT81UW/GT860U
• WAVEFORMS
— MAIN Board —
• NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
For schematic diagrams.
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
C
: panel designation.
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
A
: B+ Line.
•
B
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
) : AM
<
> : CD PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD PLAY
F
: FM
f
: AM
L
: BUS
g
: AUX
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side:
Parts on the parts face side seen from the
(Side A)
parts face are indicated.
Q
C
These are omitted
E
B
E
These are omitted
C
B
C
These are omitted
B
E
— DISPLAY Board —
0.4 Vp-p
6.75 MHz
1
IC901
qd
(XIN)
0.2 V/DIV, 0.1
µ
sec/DIV
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
0.6 Vp-p
32.768 kHz
1
IC303
8
(XCIN)
1.4 Vp-p
6 MHz
2
IC303
qd
(XIN)
0.2 V/DIV, 20
µ
sec/DIV
0.5 V/DIV, 0.1
µ
sec/DIV
24
24
CDX-GT81UW/GT860U
CDX-GT81UW/GT860U
: Uses unleaded solder.
5-3. PRINTED WIRING BOARDS — MAIN SECTION —
(Page 31)
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
14
A
BASE PANEL BOARD CN905
C
CD MECHANISM UNIT CN101
R391
R360
R301
R303
R362
C438
C439
C475
R338
R302
IC402
IC470
C607
L601
R429
R430
R431
R432
R433
R434
R435
R436
R484
R485
R801
R802
C604
Q651 Q652
R604
CN802
C436
FB601
IC303
R361
R385
R388
R387
R321
GT860U
GT860U
GT860U
GT81UW
GT81UW
IC601
L603
L602
R606
R607
Q331
Q332
R355
R356
Q333
R113
R403
C107
C110
C111
C206
C207
C208
C209
C216
C217
C218
C219
Q624
C236
C237
C238
C239
C313
C317
R368
C331
C332
C609
R702
C421
C422
C429
C430
D121
R453
IC401
D828
R402
JR610
C625
C626
C702
C703
C707
CN604
CN605
D101
D106
D108
D116
D111
JR602
D118
D120
Q703
D303
R313
D401
D404
D620
D621
R627
BRN
RED
D626
D640
D829
D827
D125
R452
IC110
IC302
IC620
IC701
IC702
IC703
R635
JR609
Q402
L303
R619
L503
L620
Q103
R375
Q134
RED
BRN
Q171
Q181
Q271
Q281
Q301
Q302
Q303
Q401
Q470
Q501
Q621
Q622
Q623
Q641
Q642
Q701
R704
Q702
Q121
R103
Q102
R104
R105
R107
R108
R109
R110
R111
R112
R114
R115
R116
R117
R118
R126
R127
CN801
R203
R204
R205
R206
R264
R304
R305
R309
R335
D836
R318
R319
R322
R323
R325
D119
R623
R333
R334
R377
R337
R340
R341
R343
R344
R345
R346
R347
R348
R350
R357
R365
R366
R372
R373
R336
R401
R407
R421
R423
R424
R369
R437
R455
R451
R454
R501
R620
R621
R634
R622
R106
R625
R628
R629
R630
R631
R632
R633
C630
D625
R703
R710
R711
R120
R121
R122
R123
R364
R701
C701
R708
R370
C433
Q101
R400
D301
L301
R422
R306
D128
R339
D115
R503
R392
C336
C335
R640
R639
D138
D139
C105
C104
D601
IC602
L402
LED990
(DISC INDICATOR)
R990
R991
1-872-391-
(11)
11
1-872-392-
(11)
11
D101
B-10
(D102)
C-9
(D103)
C-9
(D104)
E-10
(D105)
E-10
D106
D-9
D108
D-8
(D109)
D-9
(D110)
B-7
D111
C-7
(D112)
B-8
(D113)
C-7
(D114)
C-7
D115
C-8
D116
C-8
(D117)
C-8
D118
C-6
D119
C-7
D120
C-6
D121
C-6
D125
D-8
D128
E-9
D138
C-8
D139
C-6
D301
F-9
D303
I-5
(D304)
G-6
D401
D-5
D404
G-3
(D501)
F-2
D601
H-7
D620
I-8
D621
I-8
(D622)
I-8
(D623)
I-8
D625
H-9
D626
H-9
D640
I-9
(D703)
E-10
(D814)
I-5
(D815)
H-5
(D823)
H-5
(D824)
I-5
(D825)
H-5
(D826)
H-5
D827
H-5
D828
H-5
D829
H-5
(D830)
I-5
(D831)
H-5
D836
H-5
• Semiconductor Location
Ref. No.
Location
Ref. No.
Location
IC110
E-10
(IC201)
B-6
(IC301)
E-5
IC302
E-5
IC303
F-5
IC401
F-3
IC402
D-3
IC470
E-3
IC601
H-6
IC602
H-8
IC620
H-9
(IC621)
H-8
IC701
F-11
IC702
F-10
IC703
E-11
LED990
G-13
Q101
D-10
Q102
D-9
Q103
D-7
Q121
D-8
Q134
I-3
Q171
C-4
Q181
C-3
Q271
C-4
Q281
C-3
Q301
G-7
Q302
G-6
Q303
I-4
Q331
E-7
Q332
E-7
Q333
F-7
Q401
D-4
Q402
D-4
Q470
C-2
Q501
F-2
(Q620)
I-9
Q621
G-10
Q622
H-10
Q623
G-9
Q624
H-9
Q641
I-9
Q642
G-9
Q651
G-8
Q652
G-8
Q701
F-10
Q702
E-10
Q703
E-10
( ): SIDE B
(Page 25)
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