Sony STR-DE575 Service Manual page 26

STR-DE575/K502/K502P
IC501 STK350-230 (MAIN BOARD)
TR1
INPUT 1 TR2
NF
2
3
4
-VEOUT 5
+VEOUT 6
R4
TR5
V 7
SS
GND 8
D1 D2
R5
V
9
CC
R9
TR8
IC101 TC74VHC08AF(EL) (DISPLAY BOARD)
1A
1
1B
2
1Y 3
2A 4
2B
5
2Y 6
GND
7
IC103 NJM2296D (VIDEO BOARD)
V+ Vout2 SW1 Vin1
16 15 14 13
S6
S5
S3
1 2 3 4
Vout1 SW5 Vin5 SW3
26
TR3 R1
TR4
R2
R6
TR7
TR6
R3
D4 D3
R8 R7
VCC
14
13 4B
4A
12
11
4Y
10 3B
3A
9
3Y
8
GND Vout3 SW2 Vin2
12 11 10 9
S7
S1
S2
S4
5 6 7 8
Vin4 SW4 Vin3 V-
IC701 µPC2581V (MAIN BOARD)
IC702 µPC2581V (MAIN BOARD)
BIAS CIRCUIT
PROTECTOR
PRE
REG DRIVE
DRIVE
1 2 3 4 5 6 7
IC1802 NJM2279D (S-VIDEO BOARD)
14 13 12 11
1 2 3 4
PRE
DRIVE
DRIVE
8 9 10 11 12 13 14 15
10 9 8
AMP
AMP
5 6 7