Read Sony MDS-JB920 Service Manual online
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IC300
SN74HC153ANS
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
2G
2C3
2C2 2C1 2C0
2Y
VCC
2C3
2C2 2C1 2C0
STROBE
2G
OUTPUT
2Y
A
SELECT
DATA INPUTS
B
B
A
A
B
B
A
A
1G
1C3 1C2
1C1 1C0
1Y
STROBE
1G
B
SELECT
1C3 1C2
1C1
1C0
OUTPUT
1Y
GND
DATA INPUTS
IC301, 704
SN74HCU04ANS-E20
14
13
12
11
10
9
8
1
2
3
4
5
6
7
VCC
GND
IC700
LA5632
1
–
+
12
DELAY
CIRCUIT
VREF
DELAY
CIRCUIT
3.3V
PH5
STBY
V
CC
ANA5
SYS3.3
B.BAK
AC
CD1
P. DOWN
GND
CD2
S. RESET
–
+
–
+
–
+
–
+
–
+
2
3
4
5
6
7
8
9
10
11
IC400
LB1641
1
2
3
4
5
6
7
8
9
10
GND
MOTOR
DRIVE
NOISE
FILTER
CLAMP
FWD.IN
REV.IN
VCC 1
VCC 2
NOISE
FILTER
MOTOR
DRIVE
MOTOR
DRIVE
MOTOR
DRIVE
T.S.D
O.C.P
FWD/REV/STOP
CONTROL LOGIC
IC701
M5293L
2
5
5k
+
–
27k
OVERCURRENT
LIMITTER
OVERHEAT
PROTECTION
REFERENCE
VOLTAGE
GND
ON/OFF
IN
REFERENCE
VOLTAGE
VOLTAGE
OUT
3
4
1
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