JVC TH-A10 Service Manual page 47

TC74VHC00FT-X (IC503) : Wright timing control
1.Terminal layout / Block diagram
Vcc 4B 4A
12
14 13
2
1 3
1A 1B 1Y
TC7SH32FU-X (IC312) : Timing control
1.Terminal layout
IN B 1
IN A 2
GND 3
TC7SH08FU-X(IC311) : Timing control
1.Terminal layout
IN B
1
IN A
2
GND
3
4Y 3B 3A 3Y
11 10 9 8
6
4 5 7
2A 2B 2Y GND
5 VCC
4 OUT Y
5 VCC
4
OUT Y
TC74VHC08FT-X (IC420) : NAND gate
1. Pin layout & Block diagram
1A 1
1B 2
1I 3
2A 4
2B 5
2Y 6
GND 7
TC7SHU04FU-X (IC371,IC372): Clock generator
1. Terminal layout
IN B 1
IN A 2
GND 3
14 Vcc
13 4B
12 4A
11 4Y
10 3B
9 3A
8 3Y
5 VCC
4 OUT Y
TH-A10
1-47