LG RU-52SZ51D 52" Rear Projection HDTV-Ready Television - Page 2 - Answered Questions & Fixed issues

is it by chance the "lamp" light thats turning on and off? you may have a lamp out and need replacing most of the time this is the cause..

No service manual out there,the tv corporations don't release them to the public only to their authorize serviced center.Try website YOUTUBE.com have video tutoring u how to do it.

Check the Lamp Fan ,if it is defective Lamp will try to come on sometimes and shut off.
If Fan starts to run then stops when Lamp trys to light it will be the Fan, If Fan is OK then it will be the Ballast Board that Powers Lamp ON.
Encompass Parts Distribution 1-800-638-3328 For Boards/Parts

I had a similar problem with my 42 in Philips LCD HDTV.

Here was the problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors. Many electronics companies were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.

Here are some options for you.

1. Have it fixed by a professional

2. Open your TV and find PSB. Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board.

3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.

I have a tip/tutorial on this site that may also help. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. It's called: Fixing the Philips Turns/shuts off on its own problem.

Hope this helps and Good luck.

Kaufman605

when you turn TV on, watch to see if the Lamp Fan is running,if it stops when Lamp trys to light then set will not come on.which then means Lamp Fan is defective.

If you are looking at the back of the TV look on the left hand side to see if there is a access panel on that side of the TV - open it up and you will see the light bulb housing - take it out and look to determine whether you think you can replace the bulb by yourself or if you need assistance - I will say this most of the LGs are not soldered on they are put on using a small nut and they are easy to replace - 1 note is to order just the bubl if you think you can replace it yourself but DO NOT remove the bad bulb from housing until you get the new bulb so you can see how to hook up the new bulb :-) plus it usually takes about a week to get the new bulb in and sometimes people tend to forget how things were taken apart :-) Good Luck you will save money if you order only the bulb!

Thanks,
MC

Hello,

When a blue streak of light is running through the screen of your television then the problem is most likely from your main board of your television or the t-com board.

You can open up the television with the appropriate screwdriver, then assess the capacitors to see which is faulty, and if none is swollen then the problem is not from the main board.

Then replacing the t-com board will do the job.

Take care

Hi there looks like your DMD board went bad or is starting to unfortunately they don't sale just the DMD boards you have to buy the whole light engine system and that gets costly to be honest with you here is a link that tells you how this projection works and it could help you diagnose your TV set better here it is

http://electronics.howstuffworks.com/dlp2.htm

Uplug,replug it an hour later,see if that work?Next step,replace the projection lamp.

Yes its toxic if ingested by animals.It's the same as automotive engine coolant. Its the coolant for the CRT's it can also cause severe damage to the circuit boards solder if its allowed to set onto the circuit boards.

Light Engine needs replacing Call UED 1-800-648-6657 for prices on rebuilt ones if they have any,also try Encompass Parts Distrubtion 1-800-638-3328.

Just remove the 2 screws holding Lamp in and replace it Mats has them for 99.00 1-800-628-1118

if you're lucky it's just the bulb who has burned out. If not, and if it implies the power source, it will be expensive to repair. Start by checking the bulb - take it out and check it with an ohmmeter.

A new lamp fixed that problem on mine.....cn

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projeciton sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

• Screen looks 3D
• Colors don't line up
• One or more colors can't be adjusted when using the convergence menu.
• Screen is bowed or warped.
• TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.

Here are some photos of convergence problems.






Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

CONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

The light engine is defective. The part is an entire assembly. It is about $650.

Replace bulb, clean out cooling fans including fans that are part of projector assembly.

The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix here http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Yes it does have an Analog tuner. manual link below.

http://www.lg.com/ph/support/product/support-product-profile.jsp?customerModelCode=RU-44SZ51D&matchedModelCode=NOT_MATCHED&searchEngineModelCode=RU-44SZ51D&initialTab=warranty&targetPage=support-product-profile#

Try unplug,replug an hour later will reset it.But what was the problem,before u change the bulb.