Sony CDX-GT200 / CDX-GT200E / CDX-GT200S / CDX-GT20W / CDX-GT250S / CXS-G2516FS Service Manual ▷ View online
13
CDX-GT20W/GT200/GT200E/GT200S/GT250S
2-7. OPTICAL PICK-UP
2-8. SL MOTOR ASSY (M902)
1
tension coil spring (CHKG)
2
chucking arm sub assy
3
screw
(+B 1.4
×
5)
4
rack (SL)
5
claw
6
main shaft
7
optical pick-up
1
screw
(+P 1.4
×
1.8)
2
SL motor assy (M902)
14
CDX-GT20W/GT200/GT200E/GT200S/GT250S
2-9. LE MOTOR ASSY (M903)
2-10. SERVO BOARD
2
washer
4
qd
3
gear (LE1)
7
leaf spring (LE)
5
lever (D)
bracket (LEM-N)
slider (R)
6
screw
(+P 1.7
×
2.2)
8
screw
(+M 1.7
×
2.5)
qa
screw
(+M 1.7
×
2.5)
qf
two toothed lock screws
(+M 1.4
)
qs
screw
(+M 1.7
×
2.5)
9
bearing (LEB-N)
0
gear (LE) assy
qg
LE motor assy
(M903)
1
Remove the solders.
3
CN1
5
claw
6
SERVO board
4
toothed lock screw
(M 1.7
×
2.5)
1
Remove the eight solders.
2
Remove the three solders.
15
15
CDX-GT20W/GT200/GT200E/GT200S/GT250S
CDX-GT20W/GT200/GT200E/GT200S/GT250S
3-1. BLOCK DIAGRAM — CD SECTION —
SECTION 3
DIAGRAMS
89
RFO
RF AMP,DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC2
83
RFEQO
3
RFRP
6
TEI
81 RFI
82 RFRPI
82 RFRPI
2 RFZI
7 TEZI
9 F0O
PD1
PD2
E
F
I-V AMP
PD
LD
DETECTOR
88 AGCI
94
96
95
97
100
98
TNI
FPI1
FNI1
FPI2
FNI2
TPI
91 LDO
92
MDI
(FOCUS)
(TRACKING)
2-AXIS DEVICE
OPTICAL
PICK-UP BLOCK
(KSS1000E)
• Signal Path
: CD PLAY
LASER DIODE
M
M
M
18
17
VO3–
VO3+
14
13
VO1+
VO1–
12
11 VO2–
VO2+
10
9
VOL+
VOL–
FWD
REV
1
28
OPIN4– 26
OPOUT4 25
10 TRO
OPIN3– 23
OPOUT3 22
12 FMO
OPOUT1 4
13 DMO
OPOUT2 7
MUTE 21
16
15
VO4–
VO4+
M903
(LOADING)
M901
(SPINDLE)
M902
(SLED)
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC1
51
PIO3
48
PIO0
36
MSTBY
58
ZDET
37
/RST
43
/CCE
42
BUCK
41
BUS3
CD-L
MAIN
SECTION
A
30
LO
27
RO
R-CH
27 DEC SSTBY
15 CD ZDET
15 CD ZDET
14 CD XRST
13 CD XCCE
53 MEC_SELFSW
45 MEC_INSW
42 MEC_LIMIT
12 CD BUCK
11 CD BUS3
40
BUS2
10 CD BUS2
39
BUS1
8
CD BUS1
38
BUS0
7
CD BUS0
81 X1
80 X0
MEC LOAD
43
DRVON
6
MEC EJECT
44
CD
SYSTEM CONTROL
IC3
+1.5V REG
IC6
SYSTEM CONTROL
IC501 (1/3)
37 DEC XMUTE
30 DEC INT
SW2
(SELF)
46 MEC_DSW
SW1
(DOWN)
SW3
(DISC IN)
SW4
(LIMIT)
56
UNISI
25
RXD
57
UNISO
58
UNICKI
50
BUS ON
51
BU IN
75
RSTX
61
EJECT OK
67
MECON CHK
1
CDON
1500MV
63
MECON
64
CDON
66
ZMUTE
60
A ATT
26
TXD
PD1
E
F
LD
MON OUT
FCS+
FCS–
TRK+
TRK–
PD2
AUTOMATIC
POWER
CONTROL
Q21
+1.5V ON/OFF
SWITCH
Q2,3
• R-ch is omitted due to same as L-ch.
24
23
X2
16.9344MHz
X1
12MHz
XI
XO
DISPLAY
SECTION
C
MAIN
SECTION
B
EJECT OK SW
UNI SI
UNI SO
ATT
UNI CLK
BUS ON
B/U CHECK
SYS RST
89
CD ON
VOUT
98
CDM ON
99
Z MUTE
MECHA+6V
93
68
CDON CHK
1
5
VDD
3
CE
D+3.3V
+1.5V
+1.5V
BU+3.3V
(Page 16)
(Page 16)
(Page 17)
16
16
CDX-GT20W/GT200/GT200E/GT200S/GT250S
CDX-GT20W/GT200/GT200E/GT200S/GT250S
3-2. BLOCK DIAGRAM — MAIN SECTION —
1 ANT
7 TU LCH
ELECTRONIC VOLUME
IC401
J1
(ANTENNA)
TU1
(TUNER UNIT)
IC2-BUS
CONTROLLED
POWER AMP/
POWER AMP/
MULTIPLE
VOLTAGE
REGULATOR
IC750
SYSTEM CONTROL
IC501 (2/3)
CN601
6 TU RCH
R-CH (FRONT)
R-CH (REAR)
R-CH (REAR)
BATT
9 CD LCH
8 CD RCH
5 AUX LCH
3 AUX RCH
R-CH
4
3
3
10
VCC
11
TU VDD
15
E2P VDD
13
TU-SCL
14
TU-SDA
6
S-METER
7
TU MUTE
16
E2P SCL
17
E2P SDA
39 VSM
AUDIO+8.3V
TU+5V
BU+3.3V
BU+3.3V
GT200:AEP,UK
/GT200S
/GT200S
12 TU ATT
25 EEP CKO
24 EEP SIO
24 EEP SIO
8
MUTE CONDITION
5
QUALITY
RDS
53 TU ATT IN
38
38
13
QUALITY
NS MASK
DAVN
RDS ON
L-CH
R-CH
CD-L
J901
AUX
BUFFER
IC901
AUX
R-CH
R-CH
17
18
18
OUT SUB-L
OUT SUB-R
R-CH
L
R
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
AUDIO8.3V
B.UP+B
31
33
33
SERVO3.3V
MECHA6V
34
PANEL+B
TU+5V
BATT
25
24
24
OUT FR
OUT RR
29
MUTE
2 SDA
AUDIO+8.3V
BU+3.3V
SERVO+3.3V
MECHA+6V
MECHA+6V
PANEL+B
4 SCL
SDA
SCL
16 BEEP
22 STB
25 DIAG
25 DIAG
AUDIO+8.3V
35 VP
AEP,UK
15
7
10
12
11
16
1
9
2
4
3
5
6
30
31
31
SCL
SDA
SCL
SDA
SCL
SDA
SCL
SDA
SDA
33
I2C CKO
34
I2C SIO
9
VOL ATT
86
ATT
5
BEEP
26
AMP STB
8
DIAG
54
BU IN
73
30
UNISI
58
UNISO
59
UNISCK
60
BUS ON
87
UNI SI
UNI SO
UNI CLK
BUS ON
B/U CHECK
ATT
56
TEST IN
12 IN FL
FL+
FL–
RL+
RL–
FR+
FR–
RR+
RR–
AMP-REM
ANT-REM
ACC
TEST
23
OUT FL
11 IN RL
22
OUT RL
MUTE
Q441
MUTE
Q481
REAR
AUDIO OUT
J330
MUTE DRIVE
Q478,479
NS MASK
CONTROL
Q22
RDS DEMODULATOR
IC51
BATT
72
74
ACC IN
TEL ATT
BATTERY CHECK
Q580-582
ACCESSORY
CHECK
Q631
TU+5V REG
Q1
MUTE
Q461
13
TEL-MUTE
D479
D511
D580,581
FU601
CD
SECTION
A
CD
SECTION
B
D512
11
12
9
10
16
1
7
XTI
SCL
SCL
BU+3.3V
SDA
SDA
INTN
XTO
MPX
VDDA
VDDD
TEL ATTENATION
CHECK
Q651
RDS POWER
CONTROL
Q51
9
15
X51
8.664MHz
R-CH
• Signal Path
• R-CH is omitted due to same as L-CH.
: CD PLAY
: FM
: AUX
: AM/MW/LW
(Page 15)
(Page 15)
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