Sony VPH-G90U Service Manual page 416

YA (3/10) BOARD
SUB+5V(MAIN)
1
SH2 BUS
C332
IC251
0.1
IDT74FCT162245CT
F:CHIP
BUFFER
SUB +5V
RD ≠≠ ≠
EXT ≠≠≠ ≠≠
1DIR 1OE
D0 D0
1B1 1A1
D1 D1
1B2 1A2
GND GND
D2 D2
1B3 1A3
D3 D3
1B4 1A4
C251
0.1
VCC VCC
F:CHIP
D4 D4
1B5 1A5
D5
D5
1B6 1A6
GND GND
D6 D6
1B7 1A7
D7 D7
1B8 1A8
D8 D8
2B1 2A1
D9 D9
2 2B2 2A2
GND GND
D10 D10
2B3 2A3
D11 D11
2B4 2A4
C253
0.1
VCC VCC
F:CHIP
D12 D12
2B5 2A5
D13 D13
2B6 2A6
GND GND
D14 D14
2B7 2A7
D15 D15
2B8 2A8
EXT ≠≠≠ ≠≠
2DIR 2OE
≠≠ ≠ RD
IC252
IDT74FCT162245CT
BUFFER
1DIR 1OE
A0 A0
1B1 1A1
A1 A1
1B2 1A2
GND GND
A2 A2
1B3 1A3
A3 A3
1B4 1A4
3 C255
0.1
VCC VCC
F:CHIP
A4 A4
1B5 1A5
A5 A5
1B6 1A6
GND GND
A6 A6
1B7 1A7
A7 A7
1B8 1A8
A8 A8
2B1 2A1
A9 A9
2B2 2A2
GND GND
A10 A10
2B3 2A3
A11 A11
2B4 2A4
C257
0.1
VCC VCC
F:CHIP
A12 A12
2B5 2A5
A13 A13
2B6 2A6
GND GND
A14 A14
2B7 2A7
A15 A15
2B8 2A8
2DIR 2OE
IC253
IDT74FCT162245CT
BUFFER
4
1DIR 1OE
A16 A16
1B1 1A1
A17 A17
1B2 1A2
GND GND
A18 A18
1B3 1A3
A19
1B4 1A4
C259
0.1
VCC VCC
F:CHIP
A20
1B5 1A5
A21
1B6 1A6
GND GND
CS0 ≠≠≠ ≠≠
1B7 1A7
≠≠≠ CS1 ≠≠
1B8 1A8
≠≠≠ CS2 ≠≠
2B1 2A1
CS3 ≠≠≠ ≠≠
2B2 2A2
GND GND
WRLL ≠≠≠≠ ≠≠≠ WRLL ≠≠≠≠ ≠≠≠
2B3 2A3
WRLH ≠≠≠≠ ≠≠≠ ≠≠≠≠ WRLH ≠≠≠
2B4 2A4
WRL VCC VCC
WRL ≠≠≠ ≠≠ WRL ≠≠≠ ≠≠
TP251
2B5 2A5
5
TP252 ≠≠ ≠ RD ≠≠ ≠ RD
2B6 2A6
RD
C261
GND GND
0.1
F:CHIP
2B7 2A7
2B8 2A8
2DIR 2OE
RES ≠≠≠ ≠≠ ≠≠≠ RES ≠≠
EXT BUS
A B
R301
100
:CHIP
GND RES ≠≠≠ ≠≠
TP301
SUB+5V(REGI)
C302
0.1
VCC
F:CHIP
C252
NC
0.1
F:CHIP
≠≠≠≠ I/O2 ≠≠≠ CE
RD OUT
RD ≠≠ ≠
RD
≠≠≠≠ WRLH ≠≠≠
HWR
≠≠≠≠ WRLL ≠≠≠
LWR
AS
A23
A22
A21
A20
C254
A19
0.1
F:CHIP
A18
A17
A16
VCC
A15
A14
A13
A12
A11
A11
A10
A10
A9
A9
A8
A8
VCC
A7
A7
A6
A6
A5
A5
A4
A4
C256
A3
0.1
A3
F:CHIP
A2
A2
A1
A1
A0
A0
NC
C304
0.1
VCC
F:CHIP
C258
0.1
F:CHIP
EXT BUS
C260
0.1
F:CHIP
C262
0.1
F:CHIP
C
YA (3/10) YA (3/10)
R303
10k :CHIP
R305
10k :CHIP
C303
0.1
VCC
F:CHIP
NC
PD0 CONT A
PD1 CONT RT
PD2 CONT C
PD3
SCL3
6 5
PD4
SDO3
4 3
PD5
2 1 SDI3
PD6
8 7
PD7
GND RB301
100 :CHIP IN/OUT ≠≠≠ ≠≠
PE0
CODE2
PE1
≠≠≠≠≠ BRD2B ≠≠≠≠
PE2
≠≠≠≠≠ BRD2C ≠≠≠≠
PE3
≠≠ ≠ BD/NB
PE4
BD/NC ≠≠ ≠
PE5
SELB ≠≠≠≠ ≠≠≠
PE6
SELC ≠≠≠≠ ≠≠≠
IC301 PE7
µPD65646GJ-252 RB302
I/O PORT 2 GND 100 :CHIP
SCL1
6 5
PC0
4 3 SDO1
PC1
SDI1
2 1
PC2
8 7
PC3
6 5 SCL2
PC4
SDO2
4 3
PC5
2 1 SDI2
PC6
8 7
PC7
IN0 RB303
100 :CHIP
IN1
IN2
IN3
IN4
IN5
NC
C305
0.1
VCC
F:CHIP
IC322
PST575DMT
4.2V RESET SUB +5V
SUB+5V(MAIN)
VCC GND
R321 R322
10k 100k
:CHIP :CHIP
RES CD
C322
0.1 C323
F:CHIP 0.1
F:CHIP
IC321
TC7W00F
NAND C321
0.1
F:CHIP
1A
≠≠≠≠≠≠≠≠≠ CPU RESET ≠≠≠≠≠≠≠≠ VCC
≠≠≠ OVF ≠≠
1B 1Y
2Y 2A
GND RES
2B
TP321
RES
≠≠≠ RES ≠≠
10-54 10-54
D E
SUB+5V(MAIN)
TP312
C311
0.1
F:CHIP
SDA1
REQ
CS
CXP D7
PD0 SIRCS OUT
CXP D6
PD1 OUT
CXP D5
PD2 VD
CXP D4
PD3 SIRCS
CXP D3
PD4
CXP D2
PD5
CXP D1
IFB PD6 IC311
CXP846P48Q-1
CXP D0
PD7
SUB MCU
≠≠≠ ACK ≠≠
≠≠≠ ACK ≠≠ PH0
≠≠≠ IRQ ≠≠
≠≠≠ IRQ ≠≠ PH1
R/W ≠
PH2
R315
100
:CHIP
≠≠≠ RES ≠≠
C315
SUB +5V
0.1
F:CHIP
C313 X311 C314
15p 16MHz 15p
CH:CHIP CH:CHIP
SUB +5V
R403 R406 R409 R412 R415 R418
4.7k 4.7k 4.7k 4.7k 4.7k 4.7k
:CHIP :CHIP :CHIP :CHIP :CHIP :CHIP
Q401 Q402 Q403 Q404 Q405 Q406
2SC2712 2SC2712 2SC2712 2SC2712 2SC2712 2SC2712
R404 R410 R416
R407 R413 R419
10k 10k 10k
10k 10k 10k
:CHIP :CHIP :CHIP
:CHIP :CHIP :CHIP
R405 R411 R417
R408 R414
4.7k 4.7k 4.7k
4.7k 4.7k
:CHIP :CHIP :CHIP
:CHIP :CHIP
SCL SDA SUB +5V
TP401 TP402
BUS BUFFER
SUB CPU SYSTEM
I2C CONTROL
YA(3/10)
F G
CXP
GND
REQ
CS
E OUT ≠≠≠≠≠ ≠≠≠≠
OUT ≠≠≠ ≠≠
VD ≠≠ ≠
SIRCS ≠≠≠≠≠ ≠≠≠≠
SIRCS ≠≠≠≠≠ ≠≠≠≠
TP311
SIRCS
≠≠≠≠ WION ≠≠≠
≠≠≠≠ WION ≠≠≠
RCON ≠≠≠≠ ≠≠≠
≠≠≠≠ RCON ≠≠≠
SIRCS
SUB+5V(REGI)
R420
4.7k
5V
:CHIP
B-%SX1640<AEP>-YA.
VPH-G90J/G90E/G90U/G90M
H