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4-9
Remote reception is insensitive or fails.
No
Remote reception is
insensitive or fails.
Check if the remote
control works properly.
Check battery
Check R315
ǃ
C315
Use an oscilloscope to check if there is
output waveform from the first pin IR of the
remote censor after pressing button on the
remote control.
REM301(PIN1 - RC waveform)
Check if there is IR
signal on pin 44 of U1
Check if the power supply
voltage to the remote censor
is normal
Go
No
No
No
Yes
Yes
Yes
Correct connection
Yes
Change U1
IR waveform
Trouble shooting chart
Summary of Contents for DVP3256K
Page 31: ...6 9 6 9 Front Board Print layout Bottom side ...
Page 32: ...6 10 6 10 Switch Bord Print layout Bottom side ...
Page 33: ...6 11 6 11 OK USB Board Print layout Bottom side ...
Page 34: ...6 12 6 12 Power Board Print layout Bottom side ...
Page 35: ...6 13 6 13 Main Board Print layout Top side ...
Page 36: ...6 14 6 14 Main Board Print layout Bottom side ...
Page 40: ...REVISION LIST Version 1 0 Initial release 8 1 ...