Power (I/O Board) Circuit Block Diagram - Hitachi DV-DS163E Service Manual

1 2
B-3 POWER (I/O Board) Circuit Block Diagram
F
5.3VA
IC701-73
(SYSTEM µP )
E
IC704-1
(PWR FAIL)
IC705-8
(EEPROM)
IC707-19,20
(VPS/PDC)
D
TU701-1
(TUNER)
SW801-1
(VIDEO SW)
C
Q702,D701
B
A
1 2
3
5.2V
5VT
IC701-51 IC802-1,16
(SYSTEM µP ) (VIDEO SW)
IC703-3,6 JK803-2
(AMP) (OPTICAL)
TU701-4
(TUNER)
SYS_5.3VA
IC706-1
(RESET)
IC701-37
( SYSTEM µP )
3
4 5
12V SW_12VG
IC903,904-6
(AUDIO SW)
IC801-8
(OP AMP)
3.3V
IC808-17
(AUDIO DAC)
4 5
B - 3
6 7
33VT
IC803-2,4 TU701-17
(AV SW) (TUNER)
1.8V
IC901
IC901 on I/O P.C.B
on I/O P.C.B
(AV DECODER)
(AV DECODER)
IC808-10,20
(AUDIO DAC)
6 7
8
F
E
D
C
B
A
8