Block View Inside Ic - JVC JX-S555 Service Manual

Block View Inside IC

IC1 M51957AL [MITSUBISHI]
IC2 uPD780021ACWW01
IC4 HD74HC375FP [HITACHI]
1D 1 16 V
CC
1Q 2 15 4D
1D
1Q 3 14 4Q
G1·2
G1·2 4 13 4Q
2D
2Q 5 12 G3·4
3D
2Q 6 11 3Q
G3·4
2D 7 10 3Q
4D
GND 8 9 3D
(TOP VIEW)
TRUE TABLE
INPUTS OUTPUTS
D G Q Q
L H L H
H H H H
X L Qn Qn
X: Don't care
JX-S555(J)
(1) (3)
1D 1Q
(2)
(4) 1Q
C1
(5)
C2 2Q
(7) (6)
2Q
2D
(9) (11)
3Q
3D
(10)
(12) 3Q
C3
(13)
4Q
C4
(15) (14)
4Q
4D
FUNCTION
LATCH
(No. 70251) 17