Sanyo DC-DVD888 Service Manual page 54

IC BLOCK DIAGRAM & DESCRIPTION
IC601 BA5937AFP(Power Driver)(DVD)
28
THERMAL
DOWN
D
x2
1
PIN NO. NAME
1
2
3
4
5
6
7
8
9
10
11
12 OUT2-2
13 OUT2-1
14
IC473,474 KIA4558(OP AMP)
A
1 2 3 4
27 36 25 24
x2 x2
D D
LEVEL
SHUT
SHIFT
LEVEL
SHIFT
+
-
D
x2
2 3 4 5
DESCRIPTION
OUT-1 DRIVER CH1 (-)
OUT-2 DRIVER CH1 (+)
IN 1-1 DRIVER CH1
IN 1-2 DRIVER CH1 GAIN
NC NOT USED
NC NOT USED
MUTE CH1,4 MUTE CONTROL
GND GND
NC NOT USED
VCC2 VCC(CH2)
NC NOT USED
DRIVER CH2 LOARDING (+)
DRIVER CH2 LOARDING (-)
GND SUB STRAIGHT GND
B
5 6 7 8 9
23 22 21
VCC(CH1,4) VCC(CH3)
+ -
-
-
+
+
MUTE
CH1,4
6 7 8
PIN NO. NAME
15 REV
16 FWD
17 OUT3-1
18 OUT3-2
19 LD IN
20 IN 3
21 VCC3
22 VCC1
23 Vref IN
24 IN 4-2
25 IN 4-1
26 OUT4-2
27 OUT4-1
28 GND
IC490,491,495 KIA7805API(Regulator)
- 60 -
20 19 18 17
x2 x2
D D
FWD
LEVEL
SHIFT
VOLTAGE
CTRL
D
VCC(CH2)
x2 x2
9 10 11 12
DESCRIPTION
LOARDING REV
LOARDING FWD
DRIVER CH3 (-)
DRIVER CH3 (+)
LOARDING
DRIVER CH3
VCC(CH3)
VCC(CH1,4)
BIAS
DRIVER CH4 GAIN
DRIVE CH4
DRIVER CH4 (+)
DRIVER CH4 (-)
SUB STRAIGHT GND
1. INPUT
2. COMMON
3. OUTPUT
1 2 3
16 15
REV
LOGIC
D
13 14