Question about RCA 27V530T 27" TV

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Shows for one minute then goes tick, tick and shuts off

I recently bought a flyback and changed it. My TV shows for one minute and then makes a 'tick tick' sound and it shuts off. At first, this happened when i increased the volume. What could be the problem there? I purchased the flyback only about two weeks ago from Suburban Electronics on ebay.

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Ok try this , unplug the front control board , if it stays on then thats the problem , but if it don't , then you will need to check the components around the EEPROM and resolder all components that heat up, it is possible that the crystal and EEPROM may need to be replaced but doing these other things plus a couple of more checks will help find the culprit
also make sure all work is good, resolder and recheck are the best way to eliminate any problems
please give a fixya rating so that i may continue to help you if needed , thanks

electech

Posted on Nov 08, 2008

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Not economically. The ticking sound is a sure sign of high-voltage shutdown, and is coming from your flyback transformer - the most expensive part in the TV besides the picture tube. Even if it's not the flyback, troubleshooting the high voltage section is usually more than the cost of a new TV.

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the old ticking sound... yes.. it means your power supply shut down and continously trys to reboot ... hense the tick sound as the voltage rises and fails.

Means you got a short somewhere. Most likely the obvious high power consuming High Voltage Suppy... and as I found in 99.9 percent the Horizontal power Transistor shorted... 80 percent Flyback, 10 percent audio... 10 percent some odd circuits like vertical or yoke as shorted.

you have a short.

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Usually the horizontal output does become shorted when the flyback goes. I would replace the H output as it only cost around 3 dollars. You can check it with an ohms meter out of circuit to determine if it is indeed shorted or open.

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most times I hear that ticking its the high voltage failure ...most likely a shorted HOT fallowed by flyback. the ticking is your shut-down engaged.

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