Printed Wiring Boards - Video Section - Sony STR-DA90ESG Service Manual
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Also See for STR-DA90ESG:
- Operating instructions manual (64 pages) ,
- Operating instructions manual (62 pages) ,
- Service manual (71 pages)
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IC202 LC7821 (INPUT BOARD)
IC291 LC7821 (AUDIO BOARD)
L1
1
L2
2
L3
3
L4
4
5
L COM1
L5
6
L6
7
L COM2
8
L7
9
L8
10
L COM3
11
LEVEL SHIFT
12
VEE
CE
13
DI
14
SHIFT RESISTER
CL
15
BUFFER
IC701 µPC2581V (INPUT BOARD)
BIAS CIRCUIT
PROTECTOR
PRE
REG
DRIVE
DRIVE
1
4
5
6
2
3
IC901 NJM2103D (AC BOARD)
CR
1
VREF
VSC
2
+ –
OUTC
3
GND
4
Q
R
All manuals and user guides at all-guides.com
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
LATCH
18
RES
17
S
16
VSS
PRE
DRIVE
DRIVE
8
9
7
10
11
12
13
14
8
RESET
– +
7
VSA
6
VSB/SESIN
5
V+
S
+
–
+
–
– 74 –
IC001, 601, 651 STK350-230
(INPUT BOARD)
TR1
INPUT
1
TR2
NF
2
3
4
5
-VEOUT
+VEOUT
6
R4
TR5
V
7
SS
GND
8
D1
D2
R5
V
9
CC
R9
TR8
15
TR3
R1
TR4
R2
R6
TR7
TR6
R3
D4
D3
R8
R7
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