Read Sony STR-DE875 / STR-DE975 Service Manual online
31
STR-DE875/DE975
IC102 NJU3719L
(DISPLAY BOARD)
(DISPLAY BOARD)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
LATCH
CIRCUIT
SHIFT
REGISTER
CONTROL
CIRCUIT
PARALLEL
DATA
OUTPUT BUFFER
P11
P12
P13
P14
P15
P16
P17
VSS
P18
P19
P20
P21
P22
P23
P24
VDD
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
CLR
STB
CLK
DATA
IC302 TC9273N-006
(MAIN BOARD)
(MAIN BOARD)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VSS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
GND
CK
VDD
STB
DATA
10BIT
LATCH
CIRCUIT
(R-CH)
10BIT
LATCH
CIRCUIT
(L-CH)
LEVEL SHIFT & SHIFT REGISTER
IC501
µ
PC2581V (MAIN BOARD)
IC551
µ
PC2581V (MAIN BOARD)
PROTECTOR
DRIVE
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
PRE
DRIVE
PRE
DRIVE
BIAS CIRCUIT
REG
MUTE
+VOUT1
–VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
–VOUT2
+VOUT2
VCC1
VCC2
VEE
DRIVE
IC601 STK350-230 (MAIN BOARD)
1
2
3
4
5
6
7
8
9
TR3
R1
R2
TR4
TR6
TR7
R4
R9
TR5
TR1
TR2
R6
D4 D3
R7
R8
TR8
D1 D2
R5
R3
INPUT
NF
-VEOUT
+VEOUT
V
SS
GND
V
CC
SUB
IC201 NJM2296D (S-VIDEO BOARD)
IC202 NJM2296D (S-VIDEO BOARD)
IC251 NJM2296D (VIDEO BOARD)
IC202 NJM2296D (S-VIDEO BOARD)
IC251 NJM2296D (VIDEO BOARD)
9
S5
S6
S7
S4
S1
S2
S3
Vout1
Vout2
Vout3
V-
GND
SW3
SW2
SW1
SW5
SW4
Vin1
Vin2
Vin3
Vin4
Vin5
V+
10
11
12
13
14
15
16
1
5
2
3
4
6
7
8
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