Question about Hitachi 50UX57B 50" Rear Projection Television

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Shrinking screen We have been having problems with the screen shrinking from top to bottom on our projection tv. It sometimes corrects itself after being on for a while, but also goes back to smaller screen at times. What could be wrong. We had cable company come out, but they found nothing wrong with hookup. Please help.

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The tv is having a vertical problem have a tech look at it for possible repair.the problem is intermittent therefore it could be that it has cold solder or the vertical ic needs to be replaced along with spme caps that are not filtering the voltage properly,good luck.

Posted on Apr 06, 2007

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Posted on Jan 02, 2017

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Common problem and fairly easy to fix. 

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After a few days, weeks, or months of having the shrinking/expanding problem you may loose all audio/video but the power light will remain lit!

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If you have the following symptoms check the site www.TvRepairKits.com . They have a repair kit for this problem. 


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Hope this helps,

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1 Answer

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If you have any of the following problems you may want to check the site www.TvRepairKits.com for a repair kit. Most of the issue below are fairly common with the older Magnavox projection sets. 
Symptom: Screen shrinks and expands - may or may not correct itself after the TV warms up. After a few days, weeks, or months of having the shrinking/expanding problem you may loose all audio/video but the power light will remain lit!

Symptom: No Audio or Video but power light is on

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Symptom: No Video. Audio is intermittent. Power light still works

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If you have any of the following problems you may want to check the site www.tvrepairkits.com for a repair kit. Most of the issue below are fairly common with the older Magnavox projection sets. 

Symptom: Screen shrinks and expands - may or may not correct itself after the TV warms up. After a few days, weeks, or months of having the shrinking/expanding problem you may loose all audio/video but the power light will remain lit!

(Note: The below symptoms typicaly occurs after having the expanding/shrinking screen problem above)

Symptom: No Audio or Video but power light is on

Symptom: Audio works but no Video. Power light still work

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If you have any of the following problems you may want to check the site www.tvrepairkits.com for a repair kit. Most of the issue below are fairly common with the older Magnavox projection sets. 

Symptom: Screen shrinks and expands - may or may not correct itself after the TV warms up. After a few days, weeks, or months of having the shrinking/expanding problem you may loose all audio/video but the power light will remain lit!

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1 Answer

Screen shrinking


You have bad solder connections on the vertical output IC or on one or more of the surrounding components. Good Luck

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