Audio fades then stops after a few minutes of power
New tv worked fine for about 6 months, then began experiencing audio problems. First some crackling, then (after power on a longer time), complete audio shut down. Initially troubleshooted by turning off tv for a short period of time, then turning it back on. But problem became more and more frequent to the point of not having audio at all.
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I can see good video, but I hear no audio with my XWH200 adapters? Published 11/21/2011 06:46 AM Updated 11/21/2011 02:26 PM While most HDMI sources work with good audio and video, we have a compatibility issue with audio from a few specific products (eg, DirecTV HD DVR satellite set-top box, DISH Networks satellite set-top-box, and TiVo Premiere XL cable set-top-box). If you are experiencing problems with no audio or muted audio with one of your HDMI sources, then please try changing the audio settings on your problematic HDMI source to PCM or LPCM. Then turn off the TV, remote power from the WirelessHD adapters, and power off the HDMI source. Now power everything back on. If you are still experiencing no audio then please write down the model number of your HDMI source with no audio and contact VIZIO customer support.
Call for warrenty service,the problems u discribing is the Tuner board is dying,it not processing incomming broscast signal through the Tuner board as well as before.This problems call them ASP because it take awhile for them to order a Tuner board for the replacement.
I have the exact same problem. It's a volume control issue. For me, when I turn my TV on and have it on low volume, it works fine (but sounds somewhat distorted). But once I turn the volume up to normal levels, the speakers crackle and then go out. I opened my tv and checked my speakers, and they were perfectly fine; not blown or anything. As well, the audio processor and circuitry didn't appear burned at all.
This used happened every few months for 30min or and hour at a time. Then, about 2 months ago, it happened again, and ever since then it still hasn't worked properly. The only way I got around this was by buying a cheap 2.1 speaker system, and connecting it to the audio output on the TV. Or you could buy a speaker bar or home theater system. I believe this issue has to do with problems with the circuitry in the audio amplifier, and there's not much you can do except add external speakers, or contact Sanyo if you still have an active warranty.
Depending on where you bought your TV (such as from walmart), its possible that the LCD panel was produced by Sanyo, but the electronics were done in China. Walmart does this with nearly every TV they sell.