Sony CX-LEM550 Service Manual page 29

IC251 BA5947FM
28 26 24
27 25
+ –
INTERFACE
1 2 5
3 4
IC303 BH15FB1WG
1
22 20
23 21 19
MUTING
INTERFACE
INTERFACE
VREF
7 9
6 8 10
THERMAL
PROTECTION
OVER CURRENT
PROTECTION
VOLTAGE CONTROL
REFERENCE BLOCK
2 3 4
18 16
17 15
D D D D
LEVEL SHIFT
D D D D
11 13
12 14
5
CX-LEM550
29