Question about Sony DAV-SA30 System
Unplugged to clean behind telly - all good before no probs ever! Put all back in and nothing? Have checked all routes and manual also tone test - nothing? Any clues appriciated? Sony cust services useless, do I have to buy new surround system? Can I play the dvd thru telly?
Es kommt nur ein Rauschen aus den Lautsprechern
Posted on Mar 10, 2009
You probably popped a fuse in the unit..should be on the back of the amp.
you can play dvd through your telle,just run audio video cables OUT of dvd player,and IN to tv (av1),then turn telle to AV1,and wholla...
Posted on Jul 15, 2008
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Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.
You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.
If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.
If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.
Check for loose speaker connections as a root cause for intermittent shutdown.
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