Question about JVC HD-52G786 52" Rear Projection HDTV

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JVC tv model HD56G786

I accidentally hit the DIGITAL SETUP in the menu on my television, and now I do not know how to go back. It says WEAK SIGNAL and I can't even change the channel. I normally have it on channel 60, and with my dish network remote, I turn on my at&t homezone. Now I can't even put it on channel 60. Please help!

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Re: JVC tv model HD56G786 - JVC HD-52G786 52" Rear Projection HDTV Projection Televisions

This isn't solution

Posted on Sep 12, 2008

Re: JVC tv model HD56G786


Posted on Aug 14, 2008

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Re: JVC tv model HD56G786

It's easy, you just have to go back into the menu setup for the auto channel/tuner setup and rescan for channels. I'd noticed this as well when playing around with the tv when I'd bought it and it had done the same to me.

Posted on Jun 18, 2008

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1 Answer

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If the Mirror broke while the TV was sitting upright, the pieces of glass got down inside the light engine and the cooling fans. I don't think you took the light engine apart to clean out all of the glass so the main cooling fan is probably not running and causing the warning. There is no sensor for the mirror. Did you remove the chassis to clean the glass? You cna remove it again and try powering it up out of the cabinet. There are four fans that need to be running. If the light engine is filled with glass the fan at the bottom of the air exhaust will not turn.
I am fairly certain that since the TV was discarded there is more wrong with it than a broken mirror.

Jan 22, 2008 | JVC HD-52G786 52" Rear Projection HDTV

1 Answer

Tv problem jvc hd56g786

your lamp bulb is probably finished so get a new lamp bulb they are easy to replace just look for a small panel on the side of you tv all you need is a flat head screw driver to open the panel and you should be able to pull out the lamp bulb

Oct 14, 2007 | JVC HD-52G786 52" Rear Projection HDTV

1 Answer

No OTA channels

This television has an extremely weak tuner. It is very sensitive to both ghosting (multipath) and weak signal conditions, which cause it's digital decoder to "error out". Coupled with this is the decoder's long set-up time (time to actually begin a decoded video stream after signal is selected)and you find that every time the decoder loses sync it takes several seconds to reestablish normal decoding. The net result is the possiblity that the tuner will be continually restarting and never display anything. An extremely directional antenna may help. Otherwise, find a good external tuner box and use that.

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