Sony HCD-GTX888 Service Manual page 68

HCD-GTX777/GTX787/GTX888
68
IC502 TC74VHC157FT(EKJ) (BD93 Board)
IC200 TC74VHC157FT(EKJ) (MAIN Board)
SELECT 11 1
S
1A 2 1A G
INPUT
1B 3 1B 4A
4
OUTPUT 1Y 1Y 4B
2A 5 2A 4Y
INPUT
6
2B 2B 3A
7
OUTPUT 2Y 2Y 3B
3Y
GND 8
IC201 TK63115SCL-G@GT (BD93 Board)
VIN 1
GND 2
V REF
ON/OFF THERMAL &
CONTROL OVER CURRENT
PROTECTION
3
VCONT
IC701 BA6956AN (DRIVER Board)
IC712 BA6956AN (DRIVER Board)
TSD
1 2 3 4 5
16
V
CC
15 STROBE
14 4A
INPUT
13 4B
11 12 4Y OUTPUT
3A
11
INPUT
10 3B
3Y OUTPUT
9
5
VOUT
4 NC
CONTROL LOGIC
6 7 8 9