Sony MDS-JB920 Service Manual page 58

IC300 SN74HC153ANS
DATA INPUTS
STROBE A
VCC 2C3 2C2 2C1 2C0
2G SELECT
13 12
16 15 14 11
2C3 2C2 2C1 2C0
2G
B B A
B B A
1G
1C3 1C2 1C1 1C0
2 4 5
1 3 6
STROBE B 1C3 1C2 1C1 1C0
1G SELECT
DATA INPUTS
IC301, 704 SN74HCU04ANS-E20
VCC
14 13 12 11
1 2 3 4
IC400 LB1641
T.S.D
MOTOR
DRIVE
1 2 3 4
IC701 M5293L
GND 2
+
REFERENCE
ON/OFF 4 –
VOLTAGE
OVERHEAT
PROTECTION
IN 1
OUTPUT
2Y
10 9
2Y
A
A
1Y
7 8
OUTPUT GND
1Y
10 9 8
5 6 7
GND
FWD/REV/STOP
CONTROL LOGIC
5 6 7 8
5k
REFERENCE
5
VOLTAGE
27k
3
OUT
OVERCURRENT
LIMITTER
IC700 LA5632
PH5
1
STBY 2
V 3
CC
ANA5
4
SYS3.3 5
6
B.BAK
AC
7
CD1
8
P. DOWN 9
10
GND
CD2 11
S. RESET 12
O.C.P
MOTOR
DRIVE
9 10
– 74 –
+
–
+
–
–
+
+
–
3.3V
–
DELAY
CIRCUIT
+
–
DELAY
+
CIRCUIT
VREF