-
3
5
-
of IC or parts missing.
E
.
Check Pin 1 to Pin 16 on U
202
for any cold or hollow soldering and reverse
soldering of IC or parts missing.
F
.
If the above actions are not working, replace the Driver Board.
T75
TFT ripple
Main Board
A.
Check the
13
-pin cables connected to the driver board to see if there
is any
problem of plugging. Rule out the problem.
B.
Check the 3-pin cable connected to the
high-voltage
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.
Driver Board
A.
Measure the voltage U1 to see if it is correct.
B.
Check the devices surrounding VR202 to see if there is any cold or hollow
soldering and reverse soldering of IC or parts missing.
C. If the above actions are not working, replace the Driver Board.
High-Voltage Board
A. Check the 3-pin cable connected to the high-voltage board to see if there is any
problem of plugging. Rule out the problem.
B.
Check the sharing cable connected to the panel to see if there is any problem
of plugging. Rule out the problem.
C.
Check the high-voltage cable connected to the panel to see if there is any
problem of plugging. Rule out the problem.
D.
If the above actions are not working, replace the inverter board.
Panel
A.
Check the sharing cable connected to the
high-voltage 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.
Summary of Contents for DPC-7900 Series
Page 1: ...Portable DVD NOV 2006 DPC 7900 Series OSDPC79001...
Page 17: ...14 4 3 Exploded View 4 3 1 DVD Door Mainbody_top module...
Page 18: ...15 4 3 Exploded View 4 3 2 Keyboard Mainbody_top module...
Page 19: ...16 4 3 Exploded View 4 3 3 Mecha Mainbody_bottom module...
Page 20: ...17 4 3 Exploded View 4 3 4 Mainbody module...
Page 21: ...18 4 3 Exploded View 4 3 5 Display module Mainbody module...
Page 22: ...19 5 Regulatory Standards 5 1 Safety UL FDA 5 2 EMI CE FCC 5 3 Ergonomics Dolby LVD...
