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HELP!!!! Sony Amp problem

Discussion in 'AV Receivers & Amplifiers' started by lostprophet, Jan 11, 2004.

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  1. lostprophet

    lostprophet
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    I have a problem with my Amp. I have a Sony STR-DE475. My rear speakers cut out. Basically I hear a click in the amp and then the rears turn off. Does anybody have any ideas why this happens?
     
  2. halyousif

    halyousif
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    I've had a problem with my STR-DE575 where the volume jumps up considerably and had me scrambling for the remote! After checking all the connections and resetting the unit the problem was still there.

    I had to take it back to the retailer and demanded a new one which I have and is working perfectly.
     
  3. halyousif

    halyousif
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    Doh! I meant STR-DE585...
     
  4. lostprophet

    lostprophet
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    how do you reset the unit? I haven't tried that
     
  5. lostprophet

    lostprophet
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    how do you reset the unit? I haven't tried that
     
  6. halyousif

    halyousif
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    I think you hold the power button until it resets to Demo mode...
     
  7. lostprophet

    lostprophet
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    thanks for your help but didn't fix it.

    after consulting a hifi repair shop it appears to be a known sony issue, apparently its something to do with pressure from the back panel affecting the main board somehow. The guy reckoned it was a bugger of a job as the whole amp needs pulling to bits before he can diagnose the fault as amps these days don't have removable bottoms.

    Can anyone advise on this as I don't want to get ripped off getting it repaired!!!

    Of course if anyone knows a solution that would be even better as I'm competent enough to take it to bits and do some soldering as long as I know what to focus on.

    Thanks for all the help so far, I'm gutted I'm having to get repairs done on a piece of kit thats only 2 years old
     
  8. steveTHX

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    are you sure it's the amp? It could be a short circuiting problem with your rear speakers..
     
  9. cribeiro

    cribeiro
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    Well, if the guy in the shop says it is a known sony problem, it should be... But I'd bet it is a short-circuit. At least, those what you say are the "symptoms"... Check it carefully before starting with repairs...
    What I don't know is if the display shouldn't show a message about the short-circuit...
    Good luck anyway.
     
  10. chet

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    My Unit has the exact same problem, I have called our local Sony Centre and they say that I need to bring it in to be diagnosed and there is no known common fault with the unit, my worry is that the diagnostics and repair bill will be more than the cost of a new unit, has anyone else had this problem and if so did you get it fixed?

    Regards

    Chet
     
  11. splnter

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    Well it must be a thing with sony amps, as my friend had the same problem.

    Now mine is cutting in and out all the time,

    My friend had his fixed for £40.
    His was a dry solder joint, on a rellay.
     
  12. dunks517

    dunks517
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    My STR-DE475 had the same problem and was fixed reasonably quickly. Make sure you use a Sony centre as they already have the correct manuals etc, however this didn't work for my sub when the hamster escaped and ate all the gubbins inside and made a nest, I required two replacement leads: 1 from the volume to the circuit board and one from the main driver back to the circuit board, the Sony fella didn't give me the time of day in regards to repairing it and gave me the big FO pill. All was not lost as Bill_abz lent me his Sub as his Kef fronts bang out enough bass rather than my puny Sony ones!! :clap:
     

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