Zenith IQB50M90W 50" Rear Projection Television Logo

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Matthew Honeycutt Posted on Oct 30, 2006
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Schematic for Zenith IQB50M90W, and a problem.....

Hello, im trying to find a Schematic for a Zenith IQB50M90W rear projection tv, ive read alot of the posts here for my problem that i am having... Some times it will power on and work fine for about 30min then cut off, then you will have to unplug it, and plug it back up then it will short out, all green will light up, then a red on the PWB, im thinking maybey a short on the Sec, or CRTB, any other thoughts would b great, but i really need to know where to find a Schematic... on another note, it seems weird it will work sometimes...then its wont work others and short out....thanx guyz!!!

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  • Posted on Oct 30, 2006
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A service manual is available from http://www.servicemanuals.net for a download for about 24 bucks. I have An IcQ50H94W. Your problem sounds like a bad solder connection or a regulation problem. Good Luck PS please dont forget to rate this thread.

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Related Questions:

0helpful
1answer

Hello: I need a schematic manual for a Zenith A50M91W Rear Projection TV...can you help me? Thanks, John

Hello!

I got the free manual here:http://www.retrevo.com/search/v2/jsp/mytrevo/myTrevo.jsp?page=man
Just click the direct link and download the manual by typing the the numbers shown below.

Try this with fee:http://www.tradebit.com/filedetail.php/116880382-zenith-a50m84wiqa36m46w-many-more-models-tv-service

And this with fee:https://www.completeservicemanuals.com/index.php?_a=viewProd&review=write&productId=721


NOTE: When you download the manual make sure you have a adobe reader.If you don't have the adobe reader download here for free.http://www.filehippo.com/download_adobe_reader/
The manual with fee is more detailed and have many contents including schematic diagram.

Thank you and good luck.
1helpful
1answer

Blurry picture on left side double image right side is ok....

Ur convergence is dead,need convergence kit.
U know how to solder right?Tries these websites for convergence kit.Tv Repair World.com,Shopjimmy.com,Ebay.com or Partstore.com
3helpful
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Zenith IQB64W10W 64" power problem

Try replacing N-channel mosfet transistor 2sk2518. I had the same problem, and it worked for me. It is located on the convergence board.
0helpful
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Tv wont turn on

Unplug it for 20 mins then try again plugged in.
It could be something as simple as an inline fuse but dont try opening the set EVER with it plugged in.
2helpful
1answer

Zenith rear projection tv 56"

The convergence is way off. You may be able to adjust it thru a service mode menu. You'd need to get the model number first.
How old is the set?

Thanks,

SF in Vermont
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IQB50M90W COLOR PROBLEM

If the overall picture is just dark looking not as bright as should be could be C745 capacitor.
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Zenith 50 In Rear Projection Hour Glass

My picture is a double image and has a sideways hourglass on the screen. Please help me!
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Code

try using a code listed under Hitachi brand name, believe set is made by hitachi on this model.
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