Question about LG DU-52SZ61D TV

1 Answer

LG DU-52SZ61D you gave advice on

I'm new to this site so i hope I'm doing this properly. I posted a response to what you wrote yesterday, and it showed up as a comment. Now I noticed the ask me button. I apologize if this is not how I should do this.

Anyway, after checking the things you suggested yesterday, I can stand by the guesses I made in my comment. The color wheel is fine, the light is probably bright enough, but even if it wasn't wouldn't account for the brighter strip on the right side I imagine.

I looked further into the chassis of the set last night and I have to say whoever worked on this set was either lazy, incompetent, or both. Every screw holding the cassis down and the power supply board to the chassis was gone except for one - a large headed, small shafted bolt holding the chassis to the base of the case. It appears there should be at least one more of these large bolts, in addition to several coarse thread screws holding the various sub components together. Still, the various components were in the right place, as there are dowel pins and guide that ensure correct alignment. These were the only things keeping the guts from flopping around the set.

This leads me even further to believe the problem is some sort of obstruction or misalignment in the optical path. I suspect when the light engine originally went bad, it was not repaired under warranty by a technician as the previous owner claimed, but rather he tried todo it himself and badly botched the job. He said it worked fine after, until it was bumped, but it's entirely possible it never worked right after the "repair". At least it seems he got the engine installed right electrically, since the set does work and has the visible but dim picture as stated.
I plan to pull the chassis out, look for problems then replace it correctly with new screws. I need a service manual to reliably do this however. servicemanuals.net has a downloadable manual for the RU-52SZ61D for $15.99. From what I've read the only difference between that and the DU set I have is mine has the HD tuner and cable card slot. Hopefully everything else will be the same, especially the exploded view diagram and parts list if needed. Unless of course you might know where I can get the manual specific to my set?

Do you have any tips or other information for me before I start? i really appreciate your help so far. I'm really hoping to fix this set myself as I've had several unexpected expenses lately and money is rather tight for the time being.

Thanks again, very much!

David
BTW, if you need to contact me directly, you may do so at david@NOSPAMonsitecomps.com Obviously remove the nospam part.

Posted by on

  • onsitecomps Jul 24, 2008

    Darn, just noticed it placed this as a new request. I'm sorry about that. i don't see any way to delete it or move it, but I imagine you'll know which posting i was referring to Shuttl.

    If the mods want to move/remove this, I understand.



    Thanks.

    David

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,139 Answers

Hello onsitecomps,

I was working on a projection TV the other day and I am wondering if this set has filter mirrors? Filter mirrors are mirrors that filter out all colors but one and the use the combination of the colors to produce a luminance light( white light ) which is projected along with the RGB lights. This might be the problem that is occurring here if the mirror that reflects the luminance light is damaged it would still show the color picture but without luminance. This is just a thought that hit me. I'll post this to the other posting also.

I hope this is of help to you,

Thank you,

Shuttle83

Posted on Jul 25, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I want to ic la7840 circuit diagram


https://www.google.com/search?q=la7840+circuit+diagram&tbm=isch&tbo=u&source=univ&sa=X&ei=wSFuU_2lIZOdyAScqILIDw&ved=0CCgQsAQ&biw=1920&bih=1104

May 10, 2014 | LG DU-52SZ61D TV

1 Answer

Will not turn on


Online at thier website

Dec 07, 2013 | LG RU-52SZ61D 52" TV

1 Answer

LG DU-27FB32C has picture but no sound


check in the menu first to see if someone turned the speakers OFF--that is done in some cases if a surround system or a receiver are in use.

Also check to see if sound when a DVD etc is used via rear inputs.

Jun 01, 2012 | LG DU-27FB32C TV

1 Answer

I don't have manual; bought used. while i am watching it turns off. maybe has a timer don't know how to turn it off.


i believe you can download the manual here:
you will also need to download DjVu Reader on the same page.

http://www.lge.com/ca_en/support/product/support-product-profile.jsp?customerModelCode=DU-27FB32C&matchedModelCode=NOT_MATCHED&searchEngineModelCode=DU-27FB32C&initialTab=documents&targetPage=support-product-profile#

sorry you are having this problem.

here is live chat with LG link:


also you can contact support by email:

finally give LG support a call:
if your t.v. is broken the may help with repair especially if still under warranty.
Call an LG support representative 1-888-542-2623

hope this helps a bit.



Mar 26, 2010 | LG DU-27FB32C TV

1 Answer

Bought a used lg ru52sz51d


It sounds to me as though your old HDTV has a HD tuner built in. Not all HDTVs do and unfortunately your LG does not (I looked it up).

If you want to get free over the air HD you will need to buy a HD digital tuner box and an HD antenna.

Good luck!

Jan 07, 2009 | LG RU-52SZ61D 52" TV

1 Answer

62" LG Rear Proj DLP TV color wheel replacement


I just had to replace the color wheel chassis which ran $700.

Dec 29, 2008 | LG DU-52SZ61D TV

1 Answer

RGB Input problem


Need assistance hooking up JVC VCR/DVD combo onto LG 52" DLP TV with Home Theatre System and Rogers HD PVR Box.

Dec 20, 2007 | LG RU-52SZ61D 52" TV

7 Answers

Lg television du-27fb32c reset to factory settings


mute on the remote and menu on tv

service mode and go to factory reset

Dec 09, 2007 | LG DU-27FB32C TV

Not finding what you are looking for?
LG DU-52SZ61D TV Logo

252 people viewed this question

Ask a Question

Usually answered in minutes!

Top LG Standard (CRT) Televisions Experts

The Knight
The Knight

Level 3 Expert

68180 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

JOHN TOPLISS

Level 2 Expert

135 Answers

Are you a LG Standard (CRT) Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...