Sony CDX-GT120 / CDX-GT220 / CDX-GT22W Service Manual ▷ View online
17
17
CDX-GT22W/GT120/GT220
CDX-GT22W/GT120/GT220
5-1. BLOCK DIAGRAM — MAIN SECTION —
SECTION 5
DIAGRAMS
• Signal Path
• R-CH is omitted due to same as L-CH.
11
15
15
22
24
24
26
16
5
7
6
21
27
9
25
18
19
19
8
1,2
AU_LCH
AU_RCH
UNI_SO
UNI_SI
UNI_CLK
Z_MUTE
Z_MUTE
CD_ON
CDM_ON
SYS_RST
EJECT_OK
BUS_ON
BU+3.3V
A_ATT
BU_IN
D_+3.3V
A_+3.3V
A_+3.3V
BU_+3.3V
DR_+6V
R-CH
R-CH
R-CH
R-CH
R-CH
SERVO +3.3V
BU_+3.3V
MECHA +6V
MECHA +6V
R-CH
9 AUX-LCH
7 AUX-RCH
UNISO
59
UNISI
58
UNISCK
60
Z-MUTE
93
CD_ON
98
CDM_ON
99
RESET
77
SYSRST
88
BUSON
BU +3.3V
87
VOUT
1
VDD 2
D512
D510
: AM
: CD PLAY
: FM
: AUX
1 ANT
4 TU-LCH
8 AUX GND
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
CNP301
CD
MECHANISM
UNIT
(MG-101TC)
I2C BUS CONTROLLED
POWER AMP/MULTIPLE
VOLTAGE REGULATOR
IC750
SYSTEM CONTROL
IC501 (1/2)
RESET
IC602
CN601
3 TU-RCH
6 CD-LCH
5 CD-RCH
R-CH (FRONT)
R-CH (REAR)
VOLATT
R-CH (REAR)
VOLATT
BATT
R-CH
4
3
13
TU-SCL
14
TU-SDA
6
S-METER
5
QUALITY
7
TU-MUTE
16
E2P-SCL
17
E2P-SDA
39 VSM
38 QUALITY
10 VCC (+8.3V)
11 TU-VDD (TU+5V)
15 E2P-VDD
15 E2P-VDD
AUDIO +8.3V
TU+5V
B.U +3.3V
12 TU ATT
25 EEP_CKO
24 EEP_SIO
24 EEP_SIO
L-CH
R-CH
J901
AUX
5
3
3
OUT-FL+
OUT-FL–
9
7
7
OUT-RL+
OUT-RL–
27
R-CH
ANT-REM
35
VP
20
VP1
6
VP2
30
AUDIO+8.3V
31
33
33
SERVO+3.3V
MECHA+6V
34
PANEL+B
TU+5V
26
24
24
OUT-FR
OUT-RR
R-CH
R-CH
21
22
22
SUBOUT L
SUBOUT R
28
MUTE
4 SCL
AUDIO +8.3V
SERVO+3.3V
MECHA+6V
MECHA+6V
PANEL+B
2 SDA
16 BEEP
22 STB
25 DIAG
25 DIAG
AUDIO +8.3V
7
10
12
11
16
1
9
2
4
3
6
29
30
30
SCL
SDA
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SDA
VSM
QUALITY
TUATT
EEP-SCL
EEP-SDA
33
I2C_CKO
34
I2C_SIO
9
VOL ATT
86
ATT
5
BEEP
26
AMPSTB
8
DIAG
54
BU IN
12 IN-FL
FL+
FL–
L
J330
R
RL+
RL–
FR+
FR–
RR+
RR–
ANT-REM
BATT
ACC
25
OUT-FL
11 IN-RL
23
OUT-RL
MUTE
Q441
MUTE
Q481
MUTE
CONTROL SWITCH
Q478,479
BATT
72
ACC_IN
BATTERY LEVEL CHECK
Q580–582
ACCESSORY CHECK
Q631
TU+5V REG
Q1,D1
MUTE
Q461
29
AMP-REM
5
AMP-REM
AUDIO
OUT
REAR
D479
D511
D580
D581
FU601
37
B.UP+B
BU +5V
B.U+5V
BATT
18
18
CDX-GT22W/GT120/GT220
CDX-GT22W/GT120/GT220
• Waveforms
— MAIN Board —
5-2. BLOCK DIAGRAM — DISPLAY SECTION —
• 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
: 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.
Note:
The components identi-
fied by mark
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Q
C
These are omitted
E
B
E
These are omitted
C
B
C
These are omitted
B
E
KEY ACKNOWLEDGE
SWITCH
Q664
X502
32.768kHz
79
80
40
28
29
27
41
52
76
SYSTEM CONTROL
IC501 (2/2)
DISPLAY CONTROL
IC901
KEYIN1
CL
CE
LCD_SO
LCD_CKO
LCD_CE
64
3
SIRCS
OUT
DIMMER
KEYIN0
31 RE-IN0
RE-0
RE-1
32 RE-IN1
KEY ACK
AD_ON
XIN
XOUT
X501
18.432MHz
82
83 OSCOUT
7 NOSE_SW
OSCIN
47
48
46
2
COM1
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
D503
3
|
34
•
39
35
|
38
|
S1
S33
|
DI
LCD
BACK LIGHT
SWITCH
Q932
DIMMER
SWITCH
Q931
LED931
PANEL+B
(
)
KEY MATRIX
LSW901–911,
S901–904
(VOLUME)
PUSH SELECT
RE901
ROTARY
ENCODER
BACK LIGHT
1
LCD BACK
LIGHT
(
)
LSW901–911,
LED941,942,
944,945,951–953
KEY
ILLUMINATE
GT22W/GT220
IR
REMOTE CONTROL
SIGNAL RECEIVER
IC971
0.7Vp-p
32.768kHz
1
IC501
ul
(XOUT)
1.8Vp-p
18.432MHz
2
IC501
id
(OSCOUT)
0.5 V/DIV, 20
µ
sec/DIV
0.5 V/DIV, 20 nsec/DIV
19
19
CDX-GT22W/GT120/GT220
CDX-GT22W/GT120/GT220
: Uses unleaded solder.
5-3. PRINTED WIRING BOARD — MAIN SECTION —
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
A
KEY BOARD CN901
L
-1
-2
R
J1
(ANTENNA)
(CHASSIS)
(CHASSIS)
AUDIO OUT
REAR
J330
CD
MECHANISM
UNIT
(MG-101TC)
FU601
Q478
Q479
Q582
R509
R513
R514
C504
C508
C507
R510
R511
R512
Q664
R517
R524
R526
R527
R528
C413
D1
C6
R2
R3
C501
R503
R582
D580
R632
R634
R633
Q631
R636
Q580
R521
R522
R585
R584
D581
R583
R532
R531
JC753
C343
R674
R671
R672
R534
R756
C755
R752
C7
R479
C770
R1
R536
R535
C404
C405
C756
R538
FMB3
FMB4
C509
R504
R505
R673
L1
R540
R541
C510
C512
C513
C514
C516
R544
R507
JC681
R550
R461
R451
C763
D719
R4
R5
R8
R9
R556
R557
R558
R563
R551
C617
C764
C765
C751
C602
R568
C12
C13
R301
R302
C306
C308
C309
C310
FB604
C771
FB1
JC754
JC755
R533
D512
IC602
2
1
1
3
4
4
D510
D511
R431
Q431
R432
R441
R442
C312
R561
R565
R567
R529
R570
R12
R13
C519
R502
R462
R452
R401
JC533
R601
D502
R519
GT120
GT22W/GT220
GT22W/GT220
JC504
C774
YEL
C775
R566
R543
R578
R539
R675
R676
R677
R679
D617
R661
R662
R663
R664
Q581
R506
R692
C776
C435
C455
C465
C445
C442
C432
C452
C462
R690
R693
C769
D704
C522
C523
C8
IC
50
1
R153 R154
R155
IC401
R412
R481
R482
R472
D153
C154
C155
R151
R152
L151
C618
C454
C464
R413
R414
C750
Q1
Q471
R471
Q481
Q441
Q451
Q461
R572
R575
D479
D503
R542
R547
JC510
C550
R631
C601
TU1
X502
X501
D757
D760
D601
D758
D754
D755
D756
D762
L601
CNP301
CN601
X501
D753
D752
D751
CN701
JW63
JW62
JW119
JW67
JW89
JW102
JW22
JW42
JW3
JW65
JW82
JW51
JW94
JW93
JW18
JW111
JW133
JW54
JW24
JW23
JW25
JW39
JW1
JW2
JW31
JW26
JW9
JW17
JW50
JW56
JW99
JW45
JW115
JW117
JW109
JW141
JW27
C441
C431
C451
C461
C401
C754
C407
C406
C4
C5
C631
C753
C758
C479
C302
C301
C305
C511
C503
C412
IC750
C481
C471
C151
C152
JW108
JW139
C623
C622
JW70
JW71
JW20
JW106
JW132
JW131
JW19
D761
D759
JW32
JW35
JW38
JW46
JW55
JW57
JW59
JW61
JW137
JW142
JW138
C153
JW21
YEL
JW5
JW8
JW6
JW4
JW44
JW10
JW92
JW88
JW96
JW97
JW95
JW40
JW69
JW101
JW100
JW105
JW104
JW68
JW73
JW124
JW127
JW80
JW121
JW122
JW103
JW130
JW129
JW91
JW114
JW123
JW83
JW135
JW98
JW74
JW76
JW14
JW15
JW16
JW90
JW34
JW78
JW79
JW7
JW120
JW29
JW72
JW118
JW30
JW28
JW75
JW49
JW48
JW140
JW87
JW77
JW66
JW11
JW12
JW13
1-874-377-
(11)
11
(Page 24)
D1
F-3
D153
I-2
D479
E-6
D502
H-7
D503
I-5
D510
G-8
D511
F-6
D512
H-8
D580
F-10
D581
F-10
D601
C-10
D617
C-9
D704
I-3
D719
I-4
D751
D-7
D752
D-7
D753
D-6
D754
D-7
D755
C-6
D756
C-6
D757
C-6
D758
C-6
D759
D-8
D760
D-8
D761
C-9
D762
D-9
IC401
E-3
IC501
H-6
IC602
I-9
IC750
B-6
Q1
F-2
Q431
C-4
Q441
C-4
Q451
C-4
Q461
D-4
Q471
C-3
Q478
E-6
Q479
E-6
Q481
C-3
Q580
F-10
Q581
I-10
Q582
I-10
Q631
G-9
Q664
I-7
• Semiconductor
Location
Ref. No.
Location
20
20
CDX-GT22W/GT120/GT220
CDX-GT22W/GT120/GT220
IC B/D
C413
C6
C4
C464
C454
L1
C406
C13
C431
C451
C441
C461
R451
R461
R432
R452
R442
R462
R1
R4
R8
R9
R401
C481
C471
R481
R471
R482
R472
R431
R441
R413
R414
C7
C8
C12
C5
R5
C404
C405
C407
C401
C412
J1
Q1
Q451
Q461
Q481
Q471
TU1
R2
R3
R12
R13
FB1
D1
R412
J330
IC401
Q431
Q441
5-4. SCHEMATIC DIAGRAM — MAIN SECTION (1/4) —
• Refer to page 26 for IC Block Diagrams.
(Page 22)
(Page 21)
(Page 23)
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