Panel Board - Sony HCD-GT22 Service Manual

HCD-GT22/GT44/GT55
– PANEL Board –
IC701 NJU3427FA2
52 51 50 49 48
RESET SERIAL
CIRCUIT BUFFER
NC 1
RD0 2 ADDRESS DISPLAY
COUNTER DATA RAM
RD1 3
RD2
4
RD3 5
SEGMENT
RD4 6
DATA LATCH
RD5 7
RD6
8
RD7 9
RD8 10
RD9 11
RD10
12
RD11 13
14 15 16 17 18 19 20
60
47 46 45 44 43 42
OSC
INSTRUCTION TIMING DUTY
DECODER COUNTER COUNTER
TIMING
DECODER
TIMING/SEGMENT SELECTOR
HIGH VOLTAGE DRIVER
21 22 23 24 25 26
41 40
39 NC
38 DR35
37 DR34
36 DR33
35 DR32
34 DR31
33 DR30
32 DR29
31 DR28
30 DR27
29 DR26
28 DR25
27 DR24