Home Theater Questions? Ask a Technician for Answers ASAP
Hi and welcome to the site, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.
Initially, a little more background info please:
Appreciate the additional information.
Are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter and even a soldering iron?
Great on the DIY!
Still, let's try check / review the basics (even if just to eliminate these as suspects):
Consider a RESET. A reset is both a test and a try of a fix. As it implies, a reset would force the unit to revert back to factory defaults removing glitches and config errors but would include memories, presets and user preferences. After a reset, the initial setup would have to be performed. If have not been done and should you venture to try: Please click HERE.
May have to be done a number of times.
This is very critical - a reset however would not be corrective of an internal hardware concern; but it would be confirmed. In some instances, it may even expose/cause other issues.
Sorry but my understanding initially was "...volume control...dead silence..." not "...unit won't stay powered up. It shuts itself off..."
Still and with this new information, proposed preliminary tries/checks (if have not been done) should further DIY be attempted: