Sony VPH-G90U Service Manual page 362

CAB, CAG, CAR, CBB, CBG, CBR, CDB, CDG, CDR
CAR(RED PRE AMP)
IC102
J240 3 AMP 6
IC141(1/2)
1 2
MA M IC101
PULSE GEN
IC17(1/2)
CN242
3 1
CLAMP CLAMP
67 BA BOARD(1/3) CLAMP.P 1 42 31
P IN P OUT
GND 2
68 DA BOARD HD 3 44 HD IN VD OUT 34
GND 4
69 DF BOARD VD 5 2 VD IN NARROW P 23
GND 6
BLKG
52 DB BOARD BLKG.P 7 3 MEDIUM P 25
P IN
MA GND 8
CN240 BLKG P 35
70 BA BOARD(1/3) BKG_R 1
LIMIT_B 2 WIDE P 27
25 BA BOARD(3/3) ABG.ON/OFF 3 8 ABG ON/OFF
71 DA BOARD F-V 4 10 F/V
+6V 5 +6V
+13V 6 +13V
IC560(1/2)
GND 7
3 1
GND 8
GB BOARD -13V 9 -13V
Q563
IC560(2/2)
5
BUFFER
CAG(GREEN PRE AMP)
J260
CN262
CLAMP.P 1
GND 2
HD 3
GND 4
VD 5
GND 6
BLKG.P 7
8
GND
CN260
BKG_R 1
LIMIT_B 2
ABG.ON/OFF 3
F-V 4
+6V 5
+13V 6
GND 7
GND 8
-13V 9
CAB(BLUE PRE AMP)
J280
CN282
CLAMP.P 1
GND 2
HD 3
GND 4
VD 5
GND 6
BLKG.P 7
8
GND
CN280
BKG_R 1
LIMIT_B 2
ABG.ON/OFF 3
F-V 4
+6V 5
+13V 6
GND 7
GND 8
-13V 9
Q121,133 Q501,502
Q610,618 Q631 Q645,647
BUFFER BUFFER
RV623
BUFFER AMP BUFFER
Q141
IC141(2/2)
SAMPLE 7 5
HOLD SW
IC661(1/2) IC661(2/2)
Q671 Q665
SAMPLE HOLD SAMPLE HOLD
1 3 7 5
SWITCH SWITCH
Q441 Q446,447
AMP BUFFER
Q451 Q456,457
AMP BUFFER
Q525,527 S796 IC781(1/2)
SAMPLE HOLD
Q797
RV761
SW 2
RV796
1
BUFFER 3
Q605
BUFFER
IC595
Q551 Q701,721 Q723,726,733
DELAY BUFFER
3 6
IC570
BUFFER AMP
BKG/BLKG SW
6 CH2 CONT 5 RV718
IC16
Q581
+5V
+6V +5V -13V
7 REG
7 CH1 OUT 1 BUFFER
IC12
+12V
+13V
REG
+12V Q741
LIMIT
9-26
CAB, CAG, CAR, CBB, CBG, CBR, CDB, CDG, CDR
CDR(RED VIDEO OUT)
Q801,802,
Q651 Q691 806,807 IC801
CN243 CN250
G1 VIDEO
BUFFER BUFFER 1 G1 1 BUFFER 4
2 NC 2
Q625
3 GND 3
RV622
LIMIT 4 VD(12V) 4
5 NC 5
Q656 Q692
6 NC 6
Q901,902,
BUFFER BUFFER +13V 7 +13V 7 +13V
906,907
8 GND 8
K VIDEO
9 GND 9 BUFFER 4
-12V 10 -12V 10 -12V
11 NAR.P(12V) 11
1K DETECT
12 MEDIUM.P 12
13 NC 13
IC901(1/2)
14 NC 14
IC781(2/2)
Q781 15 K_OUT_DET 15
SAMPLEHOLD
7 5 16 GND 16
SWITCH
17 NC 17
IC851 IC861
18 K 18
+12V
+13V
Q736 Q738,751,752 REG
BUFFER BUFFER BUFFER
IC1211
Q1204
PACK VCC CONT
IC22 1 6
RV1223 BUFFER
-12V
-12V
REG
IC24 Q1210
-5V
-5V +112V
REG
CDG(GREEN VIDEO OUT)
CN263 CN270
1 G1 1
2 NC 2
3 GND 3
4 VD(12V) 4
5 NC 5
6 NC 6
7 +13V 7
8 GND 8
9 GND 9
10 -12V 10
11 NAR.P(12V) 11
12 MEDIUM.P 12
13 NC 13
14 NC 14
15 K_OUT_DET 15
16 GND 16
17 NC 17
18 K 18
CDB(BLUE VIDEO OUT)
CN283 CN290
1 G1 1
2 NC 2
3 GND 3
4 VD(12V) 4
5 NC 5
6 NC 6
7 +13V 7
8 GND 8
9 GND 9
10 -12V 10
11 NAR.P(12V) 11
12 MEDIUM.P 12
13 NC 13
14 NC 14
15 K_OUT_DET 15
16 GND 16
17 NC 17
18 K 18
9-26
CBR(CRT SOCKET)
CN245 CN300
8 1 G1 1
AMP
Q819,
2 NC 2
Q815 821
IC802(1/2) IC802(2/2)
3 NC 3
3 1 BRI SAMPLE 5 7
BUFFER 4 GND 4
HOLD
4
IC901 Q948
CN246 CN301
1K
8 1 K 1
AMP DETECT
IC971(1/2) 2 NC 2
Q974 IC961 Q961
CRT PROT
3 NC 3
2 1
1K 1K
4 GND 4
SW DETECT 1 PROT
1 3
IC971(2/2)
1K DETECT 2
7 5,6
M
CN244
+9V
+9V 1 -175V
REG
IC981 IC998 2 NC
IC990(2/2) IC990(1/2) (1/2,2/2)
+12V 3 CRT.PROT_B
5 7 3 1 1K SAMPLE 5 1
1 2 4 ABG.1K
HOLD
5 ABL.1K
4
6 C_PROT_CONT
7 GND
8 GND
9 NC
REG 10 +115V
CBG(CRT SOCKET)
CN265 CN310
1 G1 1
2 NC 2
3 NC 3
4 GND 4
4
CN266 CN311
1 K 1
2 NC 2
3 NC 3
4 GND 4
CN264
1 -175V
2 NC
3 CRT.PROT_B
4 ABG.1K
5 ABL.1K
6 C_PROT_CONT
7 GND
8 GND
9 NC
10 +115V
CBB(CRT SOCKET)
CN285 CN320
1 G1 1
2 NC 2
3 NC 3
4 GND 4
4
CN286 CN321
1 K 1
2 NC 2
3 NC 3
4 GND 4
CN284
1 -175V
2 NC
3 CRT.PROT_B
4 ABG.1K
5 ABL.1K
6 C_PROT_CONT
7 GND
8 GND
9 NC
10 +115V
CN304
1 GND
2 GND
J2001
1 13
2 12
NC
G1
NC
G1 11 TO CDR BOARD
CN249
H 10
H
G1
5 K 9
G2 KH
6 8
7
CN303
1 G2
CN302
M
1 HEATER(H)
2 NC
3 HEATER(C) PE BOARD 58
PE BOARD 57
MA
YA BOARD(4/4) 72
BA BOARD(3/3) 20
GB BOARD
CN314
1 GND
2 GND
J2001
1 13
2 NC 12
G1
NC
11
G1 TO CDG BOARD
CN269
H 10
G1 H
5 G2 K 9
KH
6 8
7
CN313
1 G2
CN312
1 HEATER(H)
2 NC
3 HEATER(C)
CN324
1 GND
2 GND
J2001
1 13
2 NC 12
G1
NC
11
G1 TO CDB BOARD
CN389
H 10
G1 H
5 G2 K 9
KH
6 8
7
CN323
1 G2
CN322
1 HEATER(H)
2 NC
3 HEATER(C)
VPH-G90E/G90U/G90M