20
Is OSD normal?
Black
No
No
Yes
Yes
Is the contrast
at its maximum?
3. No raster
or Check SDRAM.
Set the contrast
up to Max.
Next Page.
Yes
No
Yes
Is the output of
ADC correct?
No
Yes
Is the input of
ADC correct?
Check the video
input signal.
Replace the main board
(or replace ADC).
Yes
Check If
the CN5 wafer is
well connected at
the LCD panel.
No
Yes
Is the output
of Scaler correct?
No
Yes
Is the input of
Scaler correct?
Replace the main board
(or replace ADC).
5-1. No Video
Summary of Contents for L510B1
Page 25: ...23 24 Main PCB Component Side Main PCB Solder Side PCB LAYOUT...
Page 26: ...25 Control PCB Component Side Control PCB Solder Side...
Page 27: ...26 Power D Sub PCB Component Side Power D Sub PCB Solder Side...
Page 28: ...27 Main Section SCHEMATIC DIAGRAM...
Page 29: ...SMPS Section 28...
