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My Sony MHC-EC98P Cuts off 60 seconds after being turned on. Every time I plug it up, it shuts down. I need some help with this issue.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: sony 60 cd changer mhc-gs300av

The audio amplifier IC is damaged and need to be replaced

Posted on Feb 11, 2009

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SOURCE: Sony MHC-57AV - System shuts down "Push power protect button"

this problem is audeio out put is sort .pls ching out put STK .Any Q - My ID [email protected]
any sony music system problem

Posted on Nov 07, 2009

  • 1 Answer

SOURCE: Sony MHC-57AV - System shuts down "Push power protect button"

Sonys built-in protection against shorts in the speaker system - of course, like it was by my CMT - CPX1 - there's no problem at the speakers at all - this have to be insured! If everything with the speakers and the speaker cabling is ok it might be the soldering at the S-Master IC's. The S-Master Unit is Sonys Digital Sound System, you'll find inside two identical S-Master IC's srewed togehter on a heat sink.
I recognized that if I opened the system, it was running, touching sometimes the S-Master PCB, it shut down.
Solution: there's a bad / poor soldering at the S-Masters pins (probably because of the heat sinks!). I resoldered all S-Masters IC Pins - that's it - my system is running now.

Posted on Apr 21, 2010

dunnbiker
  • 8546 Answers

SOURCE: Im having problems with my

Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance 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.

Posted on Apr 01, 2011

lestat_001
  • 2 Answers

SOURCE: Power shuts off when CD/tuner/Tape Button is pressed

check your wires for your speakers/sub. when i added an extention to the wires for my stereo, if they become loose or rub together they short out the system and it will shut off like mine did

Posted on Jul 19, 2012

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No, I doubt if the surge device is causing your problem. most likely there is a power supply issue, or a fauly with one of the servo or motor driver circuits. This is not a repair or a quickie fix for the end user I'm afraid. This unit is going to need to be taken into a repair shop to be diagnoised. Good Luck

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