Why do i loose picture and sound for a few of seconds

this is caused by the panel's edge contacts coming loose(delaminating). would have to replace panel(approx. 1500.00 usd.)

Suspect number one is not fan, lamp or Color wheel--optical light engine with dmd is.

on off sensor sounds like its bad

sounds like you have a problem with your conversion board try to replace or check for loose connections!

Sounds like you got a bad logic board inside this unit with defuncted capcitors looks like salvation army time..

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check for loose solder.

Ours is crapping out just like yours. Picture goes out, "black and white squiggles" appear in the top left of the screen then TV input appears, then it either repeats or gives me my picture back. This happens with both the HDMI slots (tested all 3) and both Component slots. Seems like the bulb or a circuit board on the TV is faulty. What a piece of ****, never spending another dime on LG products. I did get it to come back by hitting the back of the TV with a good slap, but it gets really annoying.

Could it be vertical IC loose connection. It is sometimes connected with correct tuning. Check it for crack or wiggling connection best is to resolder.

bad/dirty video head &/or loose tape guides, needs alignment

• sound  off & on is dye to loose contact in sound section
•  plz check
• speaker wire or connector loose.
• speaker defective.
• loose contact or print loose in sound section.
• supply to sound section.
• sound output ic or print loose.
• hopr this will help
• good luck.