Sony STR-DA2800ES Service Manual page 117

IC1816 TC7WH157FK
8
11 7
11 6
EN G
A 1
A Y 5
2
B B Y
Y 3
GND 4
IC2000, 2001 TC74VHC157FT (EKJ)
SELECT 11 1 16 V
CC
S
1A 2 1A G 15 STROBE
INPUT
1B 3 1B 4A 14 4A
4B
1Y 4 1Y 4B 13
OUTPUT
5 11 12 4Y
2A 2A 4Y
INPUT
3A
2B 6 2B 3A 11
2Y 7 2Y 3B 10 3B
OUTPUT
3Y
GND 8 9 3Y
– DSP Board –
IC5003 SI-3010LLSL-TL
8 7
DRIVE
OCP
1
VCC
ST
SELECT
Y
INPUT
OUTPUT
INPUT
OUTPUT
OCP (2)
REF
+
AMP1
–
–
+
2
6 5
ON/OFF
–
+
TSD
3 4
STR-DA2800ES
117