- 27 -
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.
z T33
、
MP3 abnormal sound
9 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 U14 if there is any cold or hollow soldering and rule out the problem.
C. Check the resistors or capacitors of J8 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.
z T34
、
Audio no waveform (sound) or waveform (sound) abnormal
9 Main Board
A. Remove the cover. Check J8 and U14 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.
z T41
、
Earphone Audio no waveform (sound) or waveform (sound) abnormal
9 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 J6、U14 to see if there is any cold or hollow soldering and rule out the
problem.
C. If the above action does not work after the inspection, replace the main board.
z T42
、
Earphone Audio right no waveform (sound) or waveform (sound ) abnormal
9 Main Board
A. Check J6、U14 to see if there is any cold or hollow soldering and rule out the
problem.
B. If the above action does not work after the inspection, replace the main board.
z T43
、
Earphone Audio left no waveform (sound) or waveform (sound) abnormal
9 Main Board
A. Check J6、U14 to see if there is any cold or hollow soldering and rule out the
problem.
B. If the above action does not work after the inspection, replace the main board.
z T51
、
Video can’t be still or stopped
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