Product specifications

4-5

4. Troubleshooting

4-1-3. No Video (HDMI - Digital Signal) (SX1)

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

Major

checkpoints

Check the HDMI source. -

Check the IC1102(SX1) , Check the HDMI switch -

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

Diagnostics

Power Indicator is off.

Lamp on, no video.

Check the connection of HDMI cable?

Check a IC1201 HDMI SWITCH IC.

Change a main PCB ass’y.

Check the LVDS cable?

Replace the LCD panel?

Please, Contact Tech support

Yes

Input a HDMI cable.

Yes

Does the signal appear at

CN1202(Pin#12, #7 )(HDMI1),

CN1203_H2(Pin#12, #7)(HDMI2),

CN1204_SH(Pin#12, #7 )(HDMI3),

(HDMI RX_Clk , RX_Data)?

550 MODEL

CN1201_550(HDMI3)

CN1204_SH(HDMI4)

Check HDMI cable.

Check a IC1201 HDMI SWITCH IC.

Change a main PCB ass’y.

Does the digital data appear at output of

output of LVDS Cable?

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