Question about Mitsubishi LT37131 37 in. HDTV LCD Television

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My LT-37131 was damagd by lightening which came in through the Phone/Coax and destroyed the CISCO set top box attached to the TV via HDMI interface. The TV works only on composite and component connections now. The HDMI (2), the DVI (1), Firewire (2), and COAX (2) ports are not working now. A local repair tech says the DM (Digital Media?) board is dead. They want over $600 to replace the board. Is it worth it for a 4 year old LCD TV?

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Hi ydoomgm901,
All the inputs mentioned that don't work are located in the main board and the inputs working are connected on a different board, since they might not been not in use at the time of the lightening.
The main board is the one that should be replace to get the defective inputs to work.
If this is something you might want to try fixing yourself, check this link to find the main. That could be a cheaper solution in case you decide to fix your LCD.
Let me know if you require further assistance.

Posted on Aug 26, 2010

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I have a hdmi rca tv, unhooked the digital cable box for awhile went to hook it back up and can't get any channels scanning picks up nothing what should I have the setting set to? Hdmi set to cable


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Use the video input remote to select the HDMI for the cable box.

Scanning is for identifing the over the air stations that use the coax input noted as antenna (ANT IN) on the back of the set.

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Without you giving any more detail about the TV or the set-top box, the box probably has the connections you need to connect your VCR. You could connect the VCR to the secondary coax on the DTV box, or if it has them you could use standard A/V connectors (yellow=video red and white=stereo audio).

The easiest would be to use the other coax connection and look in the DTV boxes manual to see if there is anything you have to change on the box via the menu system.

Thanks for using Fix Ya and happy viewing.

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My (Cable Service) wire feed is directly behind my HDTV and hooked up over my fireplace . The Rxv667 is located on a side wall book shelf. I have A HDMI wire running to the TV from my receiver. Do I need...


Is there a set top cable box, or are you feeding the cable directly to your HDTV (coax directly to the TV). If you are feeding cable directly to the HDTV then you don't need HDMI. There maybe exceptions, but most TV's don't have HDMI output. The only thing you need to run from your TV to the Yamaha is an audio cable. I assume your HDTV has an optical audio out (either TOS or coax.... Your Yamaha will accept either). Connect the optical audio cable to the AV4 input on the Yamaha. This way when you hit the TV scene button on the Yamaha remote, it will select the AV4 audio input (the default for the TV scene). The optical cable will feed the full audio signal, so that the Yamaha can pass through the surround sound or use the decoder as appropriate to feed your 7.1 or 5.1 speaker system.
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In case one, you may need to setup the TV to process the audio appropriately. I have experience with Panasonic Plasma but thats about it.

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Let's treat this as TWO functions - audio and video.

Your best video would be HDMI output (audio & video) from the cable box and EACH other video source (BD/DVD) directly to your TV and receiver. But, I'd still WATCH the video from the direct TV connection. The fewer intervening cables and electronics, the better.

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See a trend here? TV's best at video; receiver is the master of audio.
And neither one adds much by handling the other. Usually the opposite.

You mention coax. Do you mean coaxial digital audio????? As coax is also shorthand for the thick black cable bringing video to most cable boxes, connecting antennae to TV's and such.

You don't actually define what the problem is. Only YOU can be the judge of what 'better' is.

There are a multitude of (mis)settings you should master before declaring a hardware problem. I'd dive into the manual.

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Has this ever worked correctly? <<<<<<<<<<<<<<<<<<<<<<<<

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