Question about Zenith IQB50M90W 50" Rear Projection Television

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I have a 1983 zenith space command projector big screen tv that rie up out of the console. it started to make spark arcing sound. i took the back panel off and saw sparks firing off a unit to the left side of the tv, looked like it controle the projectors, jut by looking at the red tubed wires. i unpluged for about 6 months and tried it again. now all it doe is turn on for a split second and turns off. whats up and what can i do to fix it and where or what secondary parts can i get for it.

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Thats the HV splitter its a hard part to find due to its age. But www.tvrepairworld.com may have one

Posted on Oct 08, 2009

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Posted on Jan 02, 2017

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My zenith big screen tv is out of focus and we cant find any master focus control. How do we fix the focus?


It is unusual for a rear projection to be out of focus since the projectors are fixed. But, it is common for the projectors to be out of alignment, in which case the picture will look like a bad 3D movie of yesteryear.

Go to the setup options / menu, look for the ALIGN option, follow instructions on screen.

Jun 13, 2010 | Zenith R60V26 60" Rear Projection...

1 Answer

Big arc in picture


Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - TV makes a chirping sound.
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 05, 2010 | Zenith IQB50M90W 50" Rear Projection...

1 Answer

Hi my name is matt, i took the the back cover off and saw that there is an arc of electricty thats constant and makes a popping sound at the back of the picture tube, also noticed a spark on the main board...


hi ,matt
pls don' t open TV back cover it your self becose inside the back cover very High Voltage [more then 29 KV] EHT is working and she is wery dengures in tv on condition
your tv problum is EHT or CRT base so pls check and replace this spear with qualify technicean.
i think CRT Base in focus pin is sperked and pictur on screen is out of focus .Replace CRT Base with NEW . it 's not Expanciv spear.


Oct 30, 2009 | Zenith C36V23 36" TV

1 Answer

POWER SUPPLY


zenith are famous for bad soldering even going back to the 80s with the 960-05 boards in the space command sets.
i would pull out the circuit board and check the soldering before doing anything else.

Sep 09, 2009 | Zenith Televison & Video

2 Answers

Small spot on screen


you have dust on your projector, you should be able to take the screws out around the screen, lean the screen away from the tv, and wipe dust off the projector

Jan 07, 2009 | Panasonic PT-50LC13 50" Rear Projection...

1 Answer

Projector emitting sparks


the ballast blew and needs replacing. if it was the power supply, the led wouldn't be on.

Jan 01, 2009 | InFocus (HW-HTSCREEN76) 76" 16:9 Projector...

1 Answer

43fdx01b arc at top of screen


convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Jan 15, 2008 | Hitachi 43FDX01B TV

1 Answer

BIG SCREEN PROBLEM


There is no such thing as a generic problem to a technician !
Please state Make,model,age, service # off back of set and then
I can help you..Thank you,Joe.........................T.

Nov 22, 2007 | Televison & Video

1 Answer

32 RCA makes popping sounds


It needs a new FLY BACK transformer. That is what you are looking at. The origionals are not made for the set any longer but insist on having a generic on installed by a local TV shop. I just put one into a RCA 31" and it works nice. Don't throw away the TV. Get it fixed. MAKE SURE YOU INSIST THEY USE THE GENERIC ONE! THEY DO WORK!

Sep 15, 2007 | RCA E13320 13" TV

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