Sound bar only goes to #5 (low sound)

TV NO GOOD NEED TO BE FIX AT THE SHOP

Main board issue.

Check the speaker/s first. If found OK, check and replace the audio output IC. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Sounds like ( pardon the pun!) one of the TVs chops on the circuit board are gone. Costly enough repair, how old is the T.V? Is it under warranty?

It is likely the ac fuse which the power cord goes directly to got hit.

back would have to be removed and fuse checked.

try to use another monitor power cord if is can turn on, otherwise immediately contact your monitor manufacturer to repair such device since it was struck by lightning

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.

it might be due to speaker. if it is ok then check for 1 loose connection in sound section. 2 speaker wire loose. 3 any capacitor in sound section might be faulty. 4 check supply to sound section 5 loose connector in sound section. 6 sound ic might be defective. if not tech.person take help from tv tech. hope this will help. good luck.

please post how many time it blinks, this does help us solve your problem.