Sony HCD-LF1H, Service Manual, Page: 52 / 82

52
HCD-LF1H
• IC Block Diagrams
IC203 BH5510KV-E2
– DMB14 Board –
FG
1
GVSW
2
BMSW
3
STBY
4
VO1F
5
VO1R
6
PGND1
7
VO2F
8
VO2R
9
PVcc1
10
VO3F
11
VO3R
12
SPCNF
13
CPH
14
GND 15
Vcc 16
HUP
17
HUN 18
HVP
19
HVN
20
HWP
21
HWN
22
RNF1
25
U
26
V
27
PVcc22
28
RNF2
29
W
30
PGND3
31
VO4F
32
VO4R
33
PVcc3
34
VO5F
35
VO5R
36
Vref 37
CNF5 38
CNF4 39
CNF3 40
CNF2 41
CNF1 42
IN1 43
IN2 44
IN3 45
IN4 46
IN5 47
INSP 48
HB 23
PVcc21
24
Pre Driver Pre Driver
NFamp Logic Logic NFamp
Pre Driver Pre Driver
180deg MATRIX
Pre Driver
PH
LIMIT
T.S.D. OSC
OSC
REVERSE
PROTECT
PHASE
SHIFT
FG
3phase
H.B.
Pre Driver Pre Driver Pre Driver
NFamp Logic NFamp Logic NFamp Logic
+
–
+
–
+
–
+
–
+ –
+
–
+
+
+
–
–
–
+
+
–
–
GVSW
BMSW STBY
+
–
+
–