Question about JVC AV-56WP74 56" Rear Projection HDTV-Ready Television

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Jvc hdtv tv was on. all the sudden tv went off. i waited a minute and tried ti power on. it came on but blank sreen. no sound fan was running and continued to power right back off. red light continue blinking rapidly.

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Check the bulb

Posted on Aug 10, 2008

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The sound suddenly went out on our JVC HD52Z575, that is about seven years old and otherwise works well.


The sound board is gone.... it's not worth it to repair. Just use the analog audio out from the TV to the external audio system. that's what I do on mine.

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You definitely have a bad lamp. Sony rates the lamp life at between 4000 and 8000 hours. There are 3 things that effect the lamp life, listed in order of importance:
1) number of times the lamp is turned on and off. Every time the lamp is first fired, it takes life off the lamp. Customers I see that turn the TV on in the morning, leave it on all day and then turn it off on the evening can get up to 12000 lamp hours
2) ventilation. Be sure you have at least 6 inches of open space all the way around the set and that the vents are clear of dust and debris.
3) power. If the power is interrupted when the set is on, there cannot be a proper cool down cycle. The fans will run after you turn the set off to properly cool it down, if the power is lost this cannot happen. If your power is unreliable, buy a small UPS to let the set finish a cool down cycle

Occasionally a lamp will faill before the average lamp time due to being defective. from your purchase date it sounds like you got about average lamp time. Be sure to purchase AN ORIGINAL SONY LAMP as a replacement, becuase the aftermarket lamps are bad news, Be sure to rate this solution. Thanks!

Oct 13, 2008 | Sony KDF46E2000 46" Projection HDTV

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1 Answer

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1 Answer

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1 Answer

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sounds like another crappy color wheel issue, just like my samsung hln617w.

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2 Answers

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Sounds like you lost the High Voltage. The beating sound is the power supply trying to start up. After a predetermined time it will quit to protect the set. This is a very common problem and typically not that much to repair. If you are not an electronics repair technician you should find a reputable repair shop and enlist their services. I would not think the cost should exceed $150.00 to repair. Good luck.

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