Daewoo DPC-8100P Service Manual - page 23
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problem.
B.
If the above actions are not working, replace the Main Board.
T31Audio /left channel (AOL) no sound or abnormal sound
Main Board
A.
Remove the cover. Check J501J502 on the I/O board to see if there is any cold
soldering, hollow soldering, or damage. Rule out the problem.
B.
Check all parts following AOL to see if there is any cold or hollow soldering,
short circuit, broken circuit, parts missing, wrong parts and rule out the
problem.
C.
If the above actions are not working, replace the Main Board.
T32Audio /right channel (AOR) no sound or abnormal sound
Main Board
A.
Remove the cover. Check J501J502 on the I/O board to see if there is any cold
soldering, hollow soldering, or damage. Rule out the problem.
B.
Check all parts following AOR to see if there is any cold or hollow soldering,
short circuit, broken circuit, parts missing, wrong parts and rule out the
problem.
C.
If the above actions are not working, replace the Main Board.
T33MP3 abnormal sound
Main Board
A.
Remove the top cover, check all flat cables in the system to see if they are
correctly plugged to the fixed positions, or re-plug them.
B.
Check if Pin4 and Pin8 on U402 connected to -12V.
C.
Check the resistors or capacitors of J501and J502 on the main board, or those
adjacent to IC to see if there is any hollow soldering or cold soldering.
D.
If the above actions are not working, replace the main board. If it is still not
working, replace the loader.
T34Audio no waveform (sound) or waveform (sound) abnormal
Main Board
A.
Remove the cover. Check J501J502J506 on the main board to see if there is
any cold or hollow soldering and rule out the problem.
B.
Check all parts following AOL and AOR to see if there is any cold or hollow
soldering, short circuit, broken circuit, parts missing, or wrong parts. Rule out
the problem.
C.
If the above actions are not working, replace the Main Board.
T41Earphone Audio no waveform (sound) or waveform (sound) abnormal
Main Board
A.
Remove the top cover, check all flat cables in the system to see if they are
correctly plugged to the fixed positions, or re-plug them.