JVC JX-S555 Service Manual page 20

JX-S555(J)
IC902-903 uPC1093J [NEC]
TO-92 PACKAGE
MARKED
SURFACE
IC3 TC74HC04AP [TOSHIBA]
1A 1
1Y 2
2A 3
2Y 4
3A 5
3Y 6
GND 7
(TOP VIEW)
A
IC404 TA78L005AP [TOSHIBA]
Schematic Diagram
R13
Q10
R14
R15
D1
Q9
OUTPUT
2
3
R16
1
INPUT
COMMON
20 (No. 70251)
14 Vcc
13 6A
12 6Y
11 5A
10 5Y
9 4A
8 4Y
Y
Q6
R5
Q11
R17
Q7
Q8
R4
R1 R2
Q4
R8
Q3
Q2
Q1
R3
TA78L005AP 5V
TA78L012AP 12V
IC904 PQ09RD08 [SHARP]
1 2 3 4
1
(1) INPUT
Q5
Q12
Q14
R11
Q13
R12
R10
R9
C1
(2) OUTPUT
R6
R7
(3) COMMON
1 DC input (Vin)
2 DC output (Vout)
3 GND
4 ON/OFF control terminal (Vc)
Spesific IC
3
IC403 TC74HC126AP [TOSHIBA]
1G 1
1A 2
1Y 3
2G 4
2A 5
2Y 6
GND 7
(TOP VIEW)
INPUTS
G A
L X
H L
H H
X : Don't Care
Z : High Impedance
2
4
14 Vcc
13 4G
12 4A
11 4Y
10 3G
9 3A
8 3Y
OUTPUTS
Y
Z
L
H