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4-1-4. No video (HDMI1, 2 - Digital signal)
Symptom
Audio is normal but no picture is displayed on the screen.
-
Check the HDMI source.
-
Major
Check the HDMI switch, Check the Chelsea.
-
checkpoints
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
3
2
Diagnostics
Caution
Make sure to disconnect the power before working on the IP board.
Power indicator LED is off.
Lamp(Backlight) on, no video ?
Yes
Check the HDMI source and
check the connection of HDMI cable ?
Yes
Does the signal appear at CN1201
(Pin#12, #7)(HDMI1)
(HDMI RX_CLK, RX_Data)?
Yes
Does the digital data appear at
TP-260_TXCLK+, 260_TXCLK- ?
Yes
Check the LVDS cable?
Check the T-Con B'd?
Replace the LCD panel?
No
Check a set in the 'Stand-by mode'
No
Input the HDMI signal properly.
Check CN1201, CN1202_26,
CN1203_26.
No
Check HDMI cable.
Change the Main Assy.
Check IC1102(SX1)
No
Change the Main Assy.
No
Please, Contact Tech support.
4. Troubleshooting
4-7
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