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Key or Rmote control
Key or Rmote control
doesn't Operate
Key doesn't operate
When any key is
No
pressed, check an input data si
output from CN004
pins7,8,9?
Yes
control operates,check the
remote pulse is input to
Check the key Desn't
Operate
pules is input to ICD601
normaloscillated from
Check the specigications of CN001
pins 1~5,7,9 and TV MICOM
Rmote control doesn't operate
Check 5V is output from the
No
Check 5V is input
to CN004 pin 10
(Check 8V is input to CND001 pin11)
Yes
No
When the remote
Check RMD701 located on the
CN004 pim13?
Yes
No
Check the component and pattern
Check the remote
between CND004 and ICD601
pin47?
Yes
No
Check 8MHz is
IC601 pin40,41?
Yes
(IC901)
QD103 emitter.
Control Board
Check VCC and X-TAL of
ICD601 (XTC601)
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