Question about Hitachi 61SDX01B 61" Rear Projection Television

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No audio, no video

My house got hit by lightning and my TV seems to have been affected. When I turn the TV on there is no video and no audio, but the red light in front of the TV does come on. The fuse inside the TV is good, I do not see anything obvious inside the TV of being damaged, The TV was plugged in to a surge protector. The cable for cable TV had no protection. What could have fried on it? the power supply, the lamp... Help

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Re: No audio, no video

Most likely the power supply. In most models, if the lamp goes out you will still get sound. However, the power supply is not a single piece swap. I would suggest getting a voltmeter, and check the voltage where the power cord meets the power supply. Then follow the circuit pathways, checking after each component, until you find a break in power. You are getting power to that light, so some power is getting through. However, the light works on much less voltage than the rest of the television, so probably there is a capacitor or transformer that's gone out.

Posted on Sep 04, 2007

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My parents think that there house got hit by lightning and now this TV (347H E10839) doesnt turn on, any sudjestions??

If you don't get a lioght on the front of the set at all then you need to remove the back and see if the fuse is blown, and if it is ok, then leave you set unplug for 40 min, and try again, the TV pocessor could be locked up do to the power surge and that will reeset it back to normal.

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Lightning hit my house my tv turned off and has never turned back on, checked the fuse seems to be fine do not see any charing anywhere?

Many years ago I was called to a house in the countryside because their TV wouldn't work. I arrived to discover that the TV looked perfect on the outside but when I removed the rear cover, there was no copper track left anywhere, just components on a bare pcboard. The aerial lead was without a copper conductor and the mains lead thee same. That was a direct hit.
I was called to another set with the condition of dead set. There was no external or indeed internal damage but the electrical surge has damaged the power supply. I repaired the power supply to find a line timebase fault. I repaired that to find a problem with the tuner, I wrote the set off to insurance as a total loss.
One can never tell what or indeed where the damage is with this sort of problem.
Hope that helps and stops you getting a large bill for a repair that may fail again.

Nov 09, 2010 | JVC AV-48P575 48" Rear Projection...

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Hello a ligtening strike near my house burned out the audio video input board at the back of my set. a repair man came and said the part is no longer available but he could send it to an electronics place...

It's hard to find new parts for older sets like that one. It is very common to have to get boards rebuilt in older sets. Being the a/v board, I would feel pretty safe using a rebuilt board as long as lightning doesn't hit again. There isn't much that will cause one to fail other than lightning. A lot of shops will give you an estimate to replace the set, that you will then give to your insurance company if it's going to be that expensive.

Jul 29, 2010 | Hitachi 60FX20B 60" Rear Projection...

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Sound goes out for certain programs or commercials on different channels, but not all of them

Check your tv's audio settings. If there is an "SAP" button on your remote try hitting that. It stands for secondary audio program. Most manufacturers put it near the corners of the remote leaving it prone to getting hit without knowing. Most shows are broadcast with a spanish version of the audio. Hitting that button should allow you to hear it, but some tv networks do not broadcast the SAP audio making it seem like there is no audio. It usually affects more than one channel, and commercials do not broadcast SAP either.

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No video, no audio, red light on in front of TV

Excellent visual acuity technique!! I try to teach that procedure.

IC F6629B is probably shorted and at least one other part will

be open, possibly a zener diode,a fuse,a resistor or combo.

The service diagram would help.Be sure to use OEM first quality

parts.Let me know if you need more help.

Sep 25, 2007 | Hitachi 61SDX01B 61" Rear Projection...

1 Answer

No audio, no video

Can you find out what Led is not on or which comes up and goes out? Most of these sets have convergence problems. Or Power Regulators.

Sep 23, 2007 | Hitachi 61SDX01B 61" Rear Projection...

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