Sony HCD-GT22 Service Manual page 59

IC301, 302 TC74HC4066AFT (EL)
1I/O 1 14
13
1O/I 2 12
2O/I 3 11
2I/O 4 10
2C 5 9
3C 6
GND 7 8
– AMP Board –
IC441 STK415-130-E (GT22/GT55)
1 2 3 4 5 6 7 8 9
– SUB WOOFER Board –
IC501 STK404-130S (GT44/GT55)
1 2 3 4 5 6 7
VCC
1C
4C
4I/O
4O/I
3O/I
3I/O
10 11 12 13 14 15 16 17 18 19
8 9 10 11 12 13
HCD-GT22/GT44/GT55
IC303 TC74VHC157FT (EKJ)
SELECT 11 1 16 V
S
1A 2 15 STROBE
1A G
INPUT
3 14 4A
1B 1B 4A
4B
1Y 4 1Y 4B 13
OUTPUT
5 11 12
2A 2A 4Y 4Y
INPUT
3A
2B 6 2B 3A 11
2Y 7 2Y 3B 10 3B
OUTPUT
3Y
GND 8 9 3Y
IC441 STK403-130-M-E (GT44)
1 2 3 4 5 6 7 8 9 10
CC
INPUT
OUTPUT
INPUT
OUTPUT
11 12 13 14 15
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