Sony TA-EX66 Service Manual page 10

• IC Block Diagrams
IC104 BA6208
SWITCH
SWITCH
1 2 3
IC105 SN74HC138AN
VCC Y0 Y1
16 15 14
Y0 Y1
A
B C
1 2 3
A B C
SELECT
IC203, 503 MC14052BCP
16 13 10
V SELECT A
DD
0 1 2 3
12 14 15 11
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MOTOR
DRIVE
MOTOR
DRIVE
REG
4 5 6 7 8
DATA OUTPUTS
Y2 Y3 Y4
13 12 11
Y2 Y3 Y4
G2A G2B G1
4 5 6
G2A G2B G1
OUTPUT
ENABLE
3
SELECT B 0 1 2
9 1 5 2
– 10 –
9
Y5 Y6
10 9
Y5
Y6
Y7
7 8
Y7 GND
6 7 8
INH 7 V V
EE SS
3
4