Service Manual
Model No.: 42D3500
9-3. Mainboard Failure Check
No picture but have sound
Check the power output
No
Change the Power Board
Yes
Check the CN2 (BLO)
Backlight on/off
Yes
No
There’s something wrong
with FRC
Verify if the DC/DC
convertor can output the
right Voltage,
No
Change the corresponding
DC/DC
QB3 output 5V
Yes
No
Verify if
QM1
output
Change
the QM1
Yes
Still having
problems
Change Panel
Change LVDS wire
39
Содержание 42D3500
Страница 10: ...Service Manual Model No 42D3500 2 2 External pictures four faces Front Side Up Side 9 ...
Страница 11: ...Service Manual Model No 42D3500 Right Side Back Side 10 ...
Страница 17: ...Service Manual Model No 42D3500 4 4 LCD Panel 42D3500 Backlight Unit LVDS CONNECTOR CN1 Connector De nition 16 ...
Страница 18: ...Service Manual Model No 42D3500 17 ...
Страница 31: ...Model No 42D3500 Service Manual 7 2 Wiring Connection Diagram 30 ...
Страница 37: ...Service Manual Model No 42D3500 9 2 Mainboard IC Introduction Top view 36 1 2 3 4 5 6 7 8 ...
Страница 38: ...Service Manual Model No 42D3500 Bottom view 37 ...