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9 Driver Board
A. Check J1、J2 to see if there is any cold or hollow soldering.
B. Check the J1 cable connected to the main board to see if there is any problem of
plugging. Rule out the problem.
C. Check U1 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing.
D. Check J1、J2 and AUJ1 to see if there is any cold or hollow soldering
E. If the above actions are not working, replace the Driver Board.
z T74
、
TFT ripple
9 Main Board
A. Check the J1 cables connected to the driver board to see if there is any problem
of plugging. Rule out the problem.
B. Check the J2 cable connected to the inverter board to see if there is any problem
of plugging. Rule out the problem.
C. If the above actions are not working, replace the Main Board.
9 Driver Board
A. Check J1、J2 to see if there is any cold or hollow soldering.
B. Check J1 cable connected to the main board to see if there is any problem of
plugging. Rule out the problem.
C. Check U1 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing.
D. Check J1、J2 and AUJ1 to see if there is any cold or hollow soldering
E. Check the sharing cable connected to the panel to see if there is any problem of
plugging. Rule out the problem.
F. Check the high-voltage cable connected to the panel to see if there is any
problem of plugging. Rule out the problem.
G. If the above actions are not working, replace the Driver Board.
9 Panel
A. Check the sharing cable connected to the inverter board to see if there is any
problem of plugging. Rule out the problem.
B. Check the high-voltage cable connected to the panel to see if there is any
problem of plugging. Rule out the problem.
C. If the above actions are not working, replace the panel.
z T81
、
Wrong Card
9 Main Board
A. Check J15 on the Main Board to see if there is any problem of plugging. Rule
out the problem.
B. Check U1 to see if there is any cold or hollow soldering and reverse soldering of
IC or parts missing.
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