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No sound
Check at operating mode
Speaker
Can not control to RS232C
Check at operating mode
Are
the signals
input at each pin of
E101 on the PWB ass'y
Drive?
(CHD3) : TXD
9
YES
(CHC1) : RXD
62
PWB ass'y Drive
PWB ass'y Signal
Pin No
RS232C
1
2
3
6
SEL0
7
RTS
9
10
GND
12
13
RDP
14
TDP
NO
PWB ass'y Signal
-- 17 --
CP-X270W
Power unit (circuit)
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