Sony STR-DB830 - Fm Stereo/fm-am Receiver Service Manual page 38

IC414, 415, 416 TC9299P (MAIN BOARD)
V+ Vout2 SW1 Vin1
16 15 14 13
S6
S5
S3
1 2 3 4
Vout1 SW5 Vin5 SW3
IC701 µPC2581V (REAR AMP BOARD)
BIAS CIRCUIT
PROTECTOR
PRE
REG DRIVE
DRIVE
2 3 4 5 6
1 7
IC251, 252 NJM2296M (S VIDEO BOARD)
V+ Vout2 SW1 Vin1
16 15 14 13
S6
S5
S3
1 2 3 4
Vout1 SW5 Vin5 SW3
GND Vout3 SW2 Vin2
12 11 10 9
S7
S1
S2
S4
5 6 7 8
Vin4 SW4 Vin3 V-
PRE
DRIVE
DRIVE
8 9 10 11 12 13 14 15
GND Vout3 SW2 Vin2
12 11 10 9
S7
S1
S2
S4
5 6 7 8
Vin4 SW4 Vin3 V-
IC501, 601 µPC2581V (MAIN BOARD)
1
VSS
OUT 2
3
IN
L-ch
NC 4
A-GND 5
6
CS1
LEVEL
7
GND SHIFT
CIRCUIT
8
CK
IC201 NJM2296M (VIDEO BOARD)
BIAS CIRCUIT
PROTECTOR
PRE
REG DRIVE
DRIVE
1 2 3 4 5 6
— 60 —
16
VDD
15 OUT
L-CH R-CH
14
IN
DATA DATA
13 NC
LATCH LATCH
12 A-GND
CIRCUIT CIRCUIT
SHIFT
REGISTER
11
CS2
(13bit) LEVEL
10 STB
SHIFT
STROBE
CIRCUIT
9 DATA
GENERATOR
CIRCUIT
PRE
DRIVE
DRIVE
7 8 9 10 11 12 13 14 15
R-ch