Main Section - Sony HCD-GX250 Servce Manual

Q Q
– MAIN SECTION –
3 7 6 3 1 5 1 5 0
CD-L
BD/DRIVER B
CD-R
SECTION
R-CH
TUNER
TUNER-L
TUNER-R
TUNED
STEREO
TU-MUTE
J804
VIDEO
GAME INPUT L
R R-CH
J803
VIDEO OUT VIDEO
DECK-A
T E
L 1 3 9 4 2 2 9 6 5 1 3
HP2 L
HP1 R R-CH
DECK-B
HRP2 L
HRP1 R
R-CH
HE1
TAPE
MECHANISM DECK
PWDEWC B
MODE B
MODE A
B HALF
A HALF
A-PHOTO
B-PHOTO
COMP
AOLB
SOLA
w w w
.
IC101
SOUND PROCESSOR
1 CDL VOUT2 32
VOUT1 33 R-CH
SWITCH
Q304-Q307
CD-MUTE
61 TUNER_L
R-CH
DO
DO
DI
DI
CLK
CLK
Q106
CE
BBNF1
34 BUFFER
CE
TUNED
BBIN1 35
STEREO
DATA
19 SI
BBNF2 31
RCLK
18 SO BBNF2 30 Q107
BUFFER
59 GAME-L
SAOUT2 55
SAOUT1 56
9 TAPEA1
Q327
11 TAPEB1
BUFFER
15 REC-OUT1 ASMOUT 40
Q308,Q309
Q313
SWITCH STK
IC371
SP DRIVER
11 Q5
12 Q6
Q324
+9V
L101
Q321
BIAS
7 Q1
OSC
Q322,Q323
9 REC SW
CONT 4 SWITCH 6 Q0
7 P/B SW
CD-MUTE 10 Q4
IC201
FAN 17 Q11
SELECTOR
LM-R
13 Q7
LM-F
14 Q8 DATA 3
TM-R
15 Q9 CLOCK 4
TM-F
16 Q10 LCH 5
Q601,Q606
CAP M
DRIVE
Q602,Q607
B TRIG
DRIVE
Q603,Q608
A TRIG
DRIVE
x a o
y
i
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8
IC102
BUFFER
MUTE
Q101-Q104
Q351,Q352
SWITCH
IC601(2/2)
SYSTEM CONTORLLER
24 I-STREEMA/VACS
75 SYSTEM-MUTE WFR/HP/MIC 19
Q Q
69 ASM PROTECT 18
3 7 6 3
SENSOR 73
CD-OPEN/CLOSE 21
RCLK
88 CLK
CD ENCORDER 20
DATA
91
DATA
TUNED
67 TUNED
STEREO
68 STEREO
DI
83 DI
CE
84
CE
DO
85
DO
CLK
86 CLK
LCH
87 LCH
23
TAPE B START+
22
TAPE A START+
70 I-REEL-A
71 I-REEL-B
MOTOR
2 MOTOR
SOLB
3 SOLB
SOLA
4 SOLA
u 1 6 3
.
23 23
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2 4
9 9 8
IC441
POWER AMP
RY441
4
11 Q481,Q482
5
OVERLOAD
R-CH
13
DET
Q441,Q442
Q489
STK MUTE
OVERLOAD
DET
+B
Q485-Q488
RELAY
DRIVE
Q483,Q484 Q308,
Q309,Q313
OVERHEAT
DET
SWITCH
TH441
AC4
1 5 1 5 0 8 9 2 4
FAN
CN201
CD NO SENS
BD/DRIVER
D
CD OPEN/CLOSE
CD ENCORDER
LM-R
LM-F
TM-R
TM-F
• R-CH is omitted due to same as L-CH
• Signal Path
: TUNER
: CD
: PB(DECK A)
: PB(DECK B)
: REC(DECK B)
: AUDIO
m
c o
HCD-GX250
2
9 9
JK441
L
SPEAKER
R-CH
R
J801
PHONES
9 8 2 9 9
Q310-Q312
FAN
FAN
DRIVE
SECTION
(Page 24)