Sony CDX-GT292 / CDX-GT29M Service Manual ▷ View online
CDX-GT29M/GT292
CDX-GT29M/GT292
13
13
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM – MAIN Section –
11
15
15
22
24
26
16
24
26
16
5
7
7
6
21
27
27
9
25
18
19
18
19
8
AU_LCH
AU_RCH
AU_RCH
UNI_SO
UNI_SI
UNI_CLK
Z_MUTE
CD_ON
CDM_ON
UNI_SI
UNI_CLK
Z_MUTE
CD_ON
CDM_ON
SYS_RST
EJECT_OK
BUS_ON
EJECT_OK
BUS_ON
BU+3.3V
A_ATT
BU_IN
D_+3.3V
A_+3.3V
BU_+3.3V
DR_+6V
BU_IN
D_+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
R-CH
9 AUX-L
7 AUX-R
7 AUX-R
UNISO
5
UNISI
6
UNISCK
7
Z-MUTE
21
CD_ON
52
CDM_ON
20
RESET
12
SYSRST
43
BUSON
BU +3.3V
44
VOUT
1
VDD 2
1,2
D512
D510
4 FMIN1
3 FMIN2
3 FMIN2
4 TU-L
8 AUX-G
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
ADVANCED TUNER/
RDS DECODER/PLL
IC1
L6
FM MIX
L2
CNP301
CD
MECHANISM
UNIT
(MG-101L)
I2C BUS CONTROLLED POWER AMP
/MULTIPLE VOLTAGE REGULATOR
IC750
SYSTEM CONTROL
IC501 (1/2)
RESET
IC602
CN601
3 TU-R
6 CD-L
5 CD-R
5 CD-R
R-CH (FRONT)
R-CH (REAR)
R-CH (REAR)
BATT
R-CH
8
9
9
18
SCL
19
SDA
14
RSSI
93 VSM
16 XTAL1
15 XTAL2
LOUT
ROUT
J901
(AUX)
X1
4MHz
5
3
3
OUT-FL+
OUT-FL–
OUT-FL–
9
7
7
OUT-RL+
OUT-RL–
OUT-RL–
27
R-CH
ANT-REM
35
VP
BATT
20
VP1
6
VP2
30
AUDIO+B
31
33
33
SERVO+3.3V
MECHA+6V
34
PANEL+B
35
33
33
OUT-FR
OUT-RR
R-CH
R-CH
30
31
31
SUB-L
SUB-R
4 SCL
AUDIO +8.5V
SERVO+3.3V
MECHA+6V
PANEL+B
SERVO+3.3V
MECHA+6V
PANEL+B
2 SDA
16 BEEP
22 STB
25 DIAG
22 STB
25 DIAG
7
10
12
11
16
1
9
9
2
4
3
6
37
38
38
SCL
SDA
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SCL
I2C-SDA
I2C-SDA
29
I2C_SCK
30
I2C_SIO
56
ATT
28
BEEP
58
AMPSTB
57
DIAG
19
BUIN
12 IN-FL
FL+
FL–
FL–
L
R
RL+
RL–
RL–
FR+
FR–
RR+
RR–
FR–
RR+
RR–
ANT-REM
BATT
ACC
34
OUT-FL
11 IN-RL
32
OUT-RL
MUTE
Q481
MUTE
CONTROL SWITCH
Q478,479
55
ACC IN
ACCESSORY CHECK
Q631
BU+3.3V REG
IC681
MUTE
Q461
29
AMP-REM
5
AMP-REM
1 AMRFIN
D479
D511
FU601
37
BU+B
B.U+5V
J330
AUDIO
OUT
REAR/SUB
MUTE
Q441
BU+3.3V
BATT
OVER VOLTAGE
CHECK
Q580-582,D580,D581
MECHA +6V
A_8.5V
14
AUDIO +8.5V
B.U +5V
SLJQDO PDWK
R-CH LV RPLWWHG GXH WR VDPH DV L-CH.
: MW/SW
: CD PLAY
: FM
: AUX
CDX-GT29M/GT292
CDX-GT29M/GT292
14
14
4-2. BLOCK DIAGRAM – DISPLAY Section –
For Schematic Diagrams.
Note:
• All capacitors are in
• All capacitors are in
F unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
and 1/4 W or less unless otherwise
specifi ed.
• f : Internal component.
• C : Panel designation.
• C : Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
( ) : MW/SW
< > : CD PLAY
• Voltages are taken with VOM (Input impedance 10 M
( ) : MW/SW
< > : CD PLAY
• Voltages are taken with VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
J
: CD PLAY
F :
FM
f :
MW/SW
L :
AUX
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• a :
• X : Parts extracted from the component side.
• a :
Through
hole.
•
: Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
• Indication of transistor.
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Waveforms
– MAIN Board –
X502
32.768kHz
10
11
94
1
2
2
100
95
SYSTEM CONTROL
IC501 (2/2)
LCD DRIVE
IC903
KEYIN1
CL
CE
CE
LCD_SO
LCD_CKO
LCD_CE
DIMMER
KEYIN0
92 KEYACK1
82 RE-IN0
RE-0
RE-1
RE-1
81 RE-IN1
42 RC_IN1
97 RC_IN0
97 RC_IN0
91 KEYACK0
XOUT
XIN
X501
11.06MHz
15
13 OSCOUT
3 NOSE_SW
OSCIN
47
48
46
2
COM1
I
COM4
LCD901
LIQUID
CRYSTAL
DISPLAY
PANEL
3
I
34
39
35
|
38
S1
I
S33
DI
DIMMER
SWITCH
Q931
LED931
PANEL+B
(
)
KEY MATRIX
LSW902–908,
S901–907
(VOLUME)
PUSH SELECT
S909
ROTARY
ENCODER
BACK LIGHT
1
LCD
BACK LIGHT
SWITCH
Q932
LCD BACK
LIGHT
(
)
LED901,903,905,908,
910,911,913,916,918,
919,921,923,925,927,
910,911,913,916,918,
919,921,923,925,927,
LSW902–908
KEY
ILLUMINATE
4 SIRCS
70 AREASEL2
10K
9K
S502
FREQUENCY
SELECTOR
BU+3.3V
J561
(REMOTE IN)
REMOTE
CONTROL
SIGNAL
RECEIVER
IC902
Note: The components identifi ed by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
C
B
These are omitted.
E
Q
40m Vp-p
4MHz
1.7 Vp-p
32.768 kHz
20m V/DIV, 100 nsec/DIV
0.5 V/DIV, 10 μsec/DIV
1
IC1
qh (XTAL1)
2
IC501
qa (XOUT)
3.4Vp-p
11.06MHz
1 V/DIV, 50 nsec/DIV
3
IC501
qd (OSCOUT)
CDX-GT29M/GT292
CDX-GT29M/GT292
15
15
•
: Uses unleaded solder.
4-3. PRINTED WIRING BOARD – MAIN Section –
(Page 19)
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
MAIN BOARD
J561
(REMOTE IN)
CD MECHANISM
UNIT
(MG-101L)
AUDIO OUT
REAR/SUB
Q478
Q479
R509
R513
R514
C504
C508
C507
R510
R511
R512
R528
C413
C501
R503
R582
D580
R632
R634
R633
Q631
R636
Q580
R521
R522
D581
R583
R532
R531
C343
R671
R672
R534
R756
C755
R752
R479
C770
C756
FMB3
FMB4
C509
R504
R505
R673
C510
C512
C513
C514
R461
R451
C763
D719
R563
C617
C764
C765
C751
C602
R301
R302
C306
C308
C309
C310
FB604
C771
JC754
JC755
R533
D512
IC602
D510
R431
Q431
R432
R441
R442
C312
R561
R565
R567
R570
C519
R502
R462
R452
R401
R601
D502
R519
C774
C775
R543
R578
R539
R675
R676
R677
R679
D617
R661
R662
R663
R664
C776
C435
C455
C465
C445
C442
C432
C432
C452
C462
C769
D704
C522
C523
R153
R154
R155
R481
R482
R472
D153
C154
C155
C155
R151
R152
L151
C618
C454
C464
C681
C682
C750
Q471
R471
Q481
(CHASSIS)
(CHASSIS)
Q441
Q451
Q461
D479
R542
C157
C502
JC301
JC302
FB308
FB309
D511
JC501
R547
C631
C632
JC303
JC533
R540
R541
Q582
Q581
R556
R558
R535
R536
R506
R507
R690
R574
R537
R546
R413
R414
IC401
C404
C405
R523
R566
R526
JC502
C705
C706
C707
C708
C719
D703
C709
C551
C408
C409
FB401
FB402
R508
R516
R517
JC151
R529
R530
R635
R631
C1
C12
IC1
C5
R3
VDR1
R1
C6
C8
C9
C16
C17
C18
C19
C20
C21
C22
C23
C23
C24
C25
C26
C27
R11
R13
R14
R14
R10
R6
C13
R2
R12
C2
C3
R4
R5
FB1
FB2
JC521
C520
C521
R550
IC501
FB304
FB311
FB561
FB562
R501
FB312
R500
C757
JC497
R681
C684
JC499
IC681
FB563
R674
R584
R585
C601
D760
D754
D755
D756
D762
L601
CNP301
CN601
X501
D753
CN701
JW89
JW22
JW3
JW93
JW18
JW1
JW2
JW9
JW45
C441
C431
C451
C461
C401
C753
C758
C479
C302
C301
C305
IC750
C481
C471
C151
C152
JW139
C623
C622
JW20
C683
JW132
JW131
JW19
D761
D759
JW35
JW38
JW61
JW142
C153
JW21
JW5
JW10
JW88
JW97
JW95
JW98
JW14
JW15
JW16
JW34
JW30
JW11
JW12
JW13
JW68
JW133
JW74
JW140
JW71
JW40
JW108
JW79
JW149
JW151
JW156
JW155
JW67
JW83
JW150
JW86
JW141
JW59
JW115
JW27
JW99
JW28
JW106
JW49
JW47
JW152
JW50
JW65
JW36
JW57
JW153
JW154
JW145
JW48
JW42
JW26
JW25
JW103
JW56
JW54
JW73
JW24
JW66
JW29
JW85
JW94
JW51
JW124
JW135
JW104
JW105
JW96
JW92
JW33
JW37
JW120
JW90
JW77
JW82
JW109
JW39
JW111
JW31
JW136
JW4
JW17
JW7
JW6
JW8
JW32
JW100
JW101
JW121
JW122
JW157
JW158
JW159
JW160
JW161
JW129
JW130
JW91
JW80
JW76
JW69
JW78
C503
S502
C752
JW146
CN351
JW62
JW63
JW167
JW75
JW55
JW174
JW175
JW176
JW84
JW118
C407
C406
C412
C761
JW178
JW23
X502
J1
(ANATENNA)
JW102
JW137
JW138
C28
JW147
JW148
JW126
J330
-1
-2
L
R
L7
L8
L4
L6
L2
L3
X1
L1
JW200
D601
1-877-021-
KEY BOARD CN901
A
X501
(FREQUENCY SELECTOR)
FU601
(CHASSIS)
(CHASSIS)
31
(31)
9K
10K
CDX-GT29M/GT292
CDX-GT29M/GT292
16
16
IC B/D
R633
C479
R634
FU601
C683
R681
R479
R584
D753
D755
D756
C753
D759
D760
D761
D762
R752
C758
C761
C503
R601
J561
FB562
FB561
FB561
Q580
C631
Q631
C602
L601
C617
C618
C519
C764
C774
C442
C432
C432
C445
C435
C776
C771
C751
C765
C775
C750
Q478
Q479
C756
C755
FB563
C752
C770
C769
C763
C757
R632
C632
C601
R583
JW63
C682
C681
C622
C623
C684
R635
R631
D617
R540
R541
Q582
Q581
R585
R582
D581
D601
JW161
JW160
JW101
JW121
JC754
JC755
JW158
JW159
D754
FB604
JC502
D511
D479
IC750
IC602
IC681
CN601
D580
• See page 21 for IC Block Diagram.
4-4. SCHEMATIC DIAGRAM – MAIN Section (1/3) –
(Page 18)
(Page 17)
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