Sony STR-DA30ES Service Manual page 16

IC202,203 LC7821 (MAIN/AUDIO BOARD)
IC901 NJM2103D (PS BOARD)
IC103 LB1638M (DISPLAY BOARD)
GND 1
2
IN1
VCC 3
IN2 4
GND 5
L1 1
L2 2
L3 3
L4
4
L COM1 5
L5
6
L6 7
L COM2 8
9
L7
L8 10
L COM3 11
12
VEE
CE 13
DI
14
CL
15
BUFFER
CR 1
VREF
2
VSC
+ –
OUTC 3
GND 4
IC501,601,701
10
N.C.
9
OUT1
8 VS
7
OUT2
6 N.C.
— 59 —
LEVEL SHIFT
LATCH
SHIFT RESISTER
– +
Q
R S
+ +
– –
uPC2581V (S.AMP/MAIN BOARD)
BIAS CIRCUIT
PROTECTOR
PRE
REG DRIVE
DRIVE
1 3 4 5 6
2
30 R1
29
R2
28 R3
27 R4
26 R COM1
25 R5
24 R6
23 R COM2
22 R7
21
R8
20 R COM3
19 VDD
18 RES
17
S
16 VSS
8 RESET
VSA
7
6
VSB/SESIN
5 V+
PRE
DRIVE
DRIVE
7 8 9 10 11
12
14 15
13