Ic Block Diagrams - Sony HCD-GX450 Service Manual

• IC BLOCK DIAGRAMS

IC251 BA5947FM (BD81A BOARD)
19
CH4OUTR D
20
CH4OUTF D
21 D
CH3OUTF
19k
PIN26
6.5k
22 D
CH3OUTR
10k
Vref
POW
VCC
23
POWVCC
(ch3, 4)
50k 50k
50k 50k
24 POW
MUTE
VCC
50k 50k
25
GND
Vref
GND 26
PREGND
27
28
CT
CH3RIN 29
CH3FIN 30
100k
31
CH4IN
PIN3
32
CH4CAPA
10k
50k
33
OUTVREF
DPOUT 34
Pre
TREVCC 35
Vcc
36
NC
IC701, 712 BA6956AN (DRIVER BOARD)
TSD
1 2 3 4 5
D 18 CH1PUTF
CH1OUTR
D 17
D 16 CH2OUTF
D 15 CH2OUTR
POW
VCC
14 POWVCC
(ch1, 2)
13 CNF4
12 GND
C-M
11
10 C-P
9
VG
8 CH2RIN
7 CH2FIN
6 CH1RIN
5
CH1FIN
SW
4 SW
3 OPIN+
2 OPIN-
NC
1
CONTROL LOGIC
6 7 8 9
HCD-GX450
43