Question about Zenith IQB60M92W 60" Rear Projection Television

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Zenith IQB60M92W 60in Rear Projection

My television was working fine and i turned it on this evening and the picture has shrunk in size. It has shrunk from top to bottom and the image has a bowing effect with horizontal lines in it. Any idea what component may be bad.

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Re: Zenith IQB60M92W 60in Rear Projection

Sounds like some kind of local interference. The first thing I'd try is disconnect the antenna input. If the wavy line goes away, it's probably something coming in through the antenna. Then I would start shutting off the circuit breakers until I was down to just the one the set is plugged into. If it goes away I would start flipping the breakers on, one by one until the noise returned. If you can isolate it to one circuit, start looking at everything that is on that circuit. If all else fails, call a TV tech.

Posted on Oct 02, 2005

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The power supply section is not working.
Common possibilities are:
- Convergences amps have failed overloading the supply
- High-voltage section (flyback transformer) has failed
(happens sooner or later, about 8 years typical))
- CRT tube has failed overloading the supply
- Power surge has popped the power input circuit.
(Fuse, rectifier diodes, turn-on relay etc)
- One of a hundred of electrolytic capacitors has failed short overloading the supply. They dry out with age, are cheap to replace, but hard to find which one it is.
- Or any of many other possibilities.

In short, you need a experianced tech to troubleshoot this.

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You have a problem MOST LIKLY!!, that happens to almost if, not to all projection tube sets ever made. Its the old bad convergence IC falure. It's not something you can do unless you have had exstensive electronic training and soldering skills. There are no user replaceable parts inside of this set so please call out a pro to repalce the convergence IC for yop! A repair such as this should cost around 250 to 400 bucks, depending where you live..Good Luck

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