Sony HCD-GPX555 Service Manual page 52

HCD-GPX555/GPX888
IC2000, IC2002 TC62D723FNG (FL BOARD)
IC501 TC62D723FNG (MB BOARD (9/9)) (GPX888)
IC502 TC62D723FNG (MB BOARD (9/9))
GND 1
Error detection result
SIN 2
SCK 3
TRANS 4
/OUT0 5
/OUT1 6
/OUT2 7
/OUT3 8
/OUT4 9
/OUT5 10
/OUT6 11
circuit
/OUT7 12
/OUT8 13
/OUT9 14
/OUT10 15
/OUT11 16
/OUT12 17
/OUT13 18
/OUT14 19
20 21
IC102 TC74VHC126FT (EKJ) (MB BOARD (7/9))
1G Vcc
1 14
1A 4G
2 13
1Y 4A
3 12
2G 4Y
4 11
2A 5 10 3G
2Y 6 9 3A
GND 7 8 3Y
52
16
Output open/short detection circuit
16
data register
Constant current output circuit
16
0-bit
Output ON/OFF setting data register
PWM
countor
16
16-bit
POD
PWM Data
for OUT0
16
16-bit
16 16
PWM Data
for OUT0
16
16-bit
PWM Data
16
for OUT0
16
Command
control Data transfer control circuit
circuit
16
0-bit
16-bit shift registor
Output delay circuit
15-bit
TSD
circuit
16 16
PWM data registor
16-bit 16-bit
Registor 3
PWM Data PWM Data
(for output)
for OUT1 for OUT15
16 16
16-bit 16-bit
Registor 2
16
PWM Data PWM Data
(for synchronous)
for OUT1 for OUT15
16 16
16-bit
16-bit
Registor 1
PWM Data
PWM Data
for OUT15
for OUT1
16
16
16
15-bit
F/F
25 GND
POR
circuit
24 VDD
Reference
voltage
23 REXT
8-bit
DAC
8
16-bit x 2
State setting
register
16
SOUT
selection
22 SOUT
circuit