20 Most Recent LG RU-52SZ51D 52" Rear Projection HDTV-Ready Television Questions & Answers

The power supply may be going on to protection mode. This is usualy because one of the scan amplifiers may have failed, or something is taking too much current and forcing the power supply to shut down.

Jerry G.

LG RU-52SZ51D... | Answered on Mar 11, 2018

Your lamp most likely failed. You can get a new bulb for it for less than $100. RU52SZ51D Bulb LG Genuine High Quality Original Projector Lamps now...

LG RU-52SZ51D... | Answered on Jun 03, 2015

The power supply protection is sensing a fault. Can be a problem on one of the boards or the power supply itself. The service rep will test by trying the boards with new ones; one at a time until the faulty one is located. He may start with the power supply board first. Once found he will leave the new board installed. Most of the time these boards are not serviceable at the component level. They use SMD high density design with multi layer boards.

Take care servicing these sets is fairly expensive. If the set is out of warranty it's a gamble if something else will fail shortly after.

LG RU-52SZ51D... | Answered on May 23, 2015

I have the same problem as Shawn. I'm hoping after about a year this post may pop back up and get a response from someone who could help.

LG RU-52SZ51D... | Answered on Mar 24, 2014

Press and hold the Mute button on the remote and at the same time press the Enter button on the TV until the Reset menu appears. Press Center button on remote to clear hrs. Your done!

LG RU-52SZ51D... | Answered on Oct 26, 2013

I bought a LG 39" flat screen 6 months ago. TV has been working great until this morning. Power comes on for about 5 seconds and then cuts off. Have checked all connections and have unplugged from wall to reset, NOTHING!! And a brand new TV!! Any help would be great!

LG RU-52SZ51D... | Answered on Jul 20, 2013

To reset on the LG MODEL RT-44SZ60DB:
Press OK button on TV and MUTE on control > operation is displayed on screen
press ok to reset

No need for LG to reset this lamp.

LG RU-52SZ51D... | Answered on Jan 16, 2013

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