Service Manual
Model No.: 39D3005
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
Summary of Contents for 39D3005
Page 10: ...Service Manual Model No 39D3005 2 2 External pictures four faces Front Side Up Side 9 ...
Page 11: ...Service Manual Model No 39D3005 Right Side Back Side 10 ...
Page 16: ...Service Manual Model No 39D3005 15 ...
Page 17: ...Service Manual Model No 39D3005 4 3 LCD Panel 39D3005 Backlight Unit LVDS CONNECTOR CNF1 16 ...
Page 18: ...Service Manual Model No 39D3005 17 ...
Page 24: ...Service Manual Model No 39D3005 Chapter 7 Electrical Parts 7 1 Circuit Diagram ...
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Page 32: ...Service Manual Model No 39D3005 7 2 Wiring Connection Diagram 30 ...
Page 38: ...Service Manual Model No 39D3005 9 2 Mainboard IC Introduction Top view 36 1 2 3 4 5 6 7 8 ...
Page 39: ...Service Manual Model No 32D3005 Bottom view 37 ...