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In the case of abnormal display on the screen when side AV1,2 / AV3 mode.

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Is video input of the AV (JK100,JK101,JK103) OK?

Yes

Same as Block A

No

Check the input source.

Manuals

Inc. All

In the case of abnormal display on the screen when Component, RGB mode.

right reserved.

Is R,G,B input and H/V

sync of the JK102,P101 OK?

Yes

Same as Block A

No

Check the input source.

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In the case of abnormal display on the screen when HDMI1,2,3 mode.

-

Is the HDMI switch

No

Is the TMDS waveform between

No

(IC200) OK?

 

the IC and HDMI jacks OK?

 

Yes

Same as Block A

In the case of abnormal display on the screen when HDMI4 mode.

Is the HDMI Jack

No

Is the TMDS waveform between

No

(JK204) OK?

 

the IC and HDMI jacks OK?

 

Yes

Same as Block A

Replace IC200

Replace JK204

LGE Internal Use Only

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LG Electronics 42LG6100-ZB, 42LG6000-ZA service manual Case of abnormal display on the screen when HDMI4 mode