Product specifications

4-23

4. Troubleshooting

4-1-6. No Video_Component (X4)

Symptom Audio is normal but no picture is displayed on the screen. -

Major

checkpoints

Check the Component source -

Check the chelsea. -

This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. -

Diagnostics

Does the component data appear at

TP - COMP1_Y, COMP1_PB, COMP1_PR

TP - COMP2_Y, COMP2_PB, COMP2_PR

(Comp / Y, Pb, Pr) ?

Does the digital data appear at

TP-E_TXCLK+, E_TXCLK-,

O_TXCLK+, O_TXCLK- ?

Yes

Check a set in the 'Stand-by mode'.

Input the video source properly.

Please, Contact Tech support.

Check CN1101 / CN1105_SAV

Change the Main Assy

Check IC3002 (X4).

Change the Main Assy.

Power indicator LED is off.

Lamp(Backlight) on, no video ?

Check the component source and check the

connection of component cables (Y,Pb,Pr) ?

Check the LVDS cable?

Check the T-Con B'd?

Replace the LCD panel?

Caution Make sure to disconnect the power before working on the IP board.