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I have an Grundig GHC 1000 home theatre which appears to have activated the circuit protection. Hence no sould. How do I de-activate

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Onkyo TX-NR905 Protection Circuit Activated

The problem is not with the inputs. This unit is in protect because a problem has been detected in the output section. Try disconnecting the speaker wires and turning it on. If the unit remains on, there is a short in one of the speaker wires. If the unit still shuts down, there is an internal problem that will require repair. It sounds like this is a new piece. If so, it should be covered under warranty.

Keep us posted,
Dan

Posted on Jul 28, 2008

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SOURCE: The amp protection circuit was actived - what should we do?

Remove all speaker wires from the receiver and turn it on.

If it still goes into protect, I'll bet the house that one of the channels is shorted out and it needs repair. This is a job for a pro.

If it doesn't go into protect, check for a short in the speaker wire or for a bad speaker.

Posted on Jan 29, 2009

marsrover
  • 682 Answers

SOURCE: Amp protection circuit has been

1-check your input cables from connected equipments(cd player or dvd p
layer or any other media source).
2-adjust your input signal level(from-10 db to 0 db).
3-amplifier power must be bigger than total power of all loudspeaker with 20%----(if total power of loudspeaker is 8 watt amplifier must be 10 watt.

Posted on Nov 28, 2009

SOURCE: protection circuit activated

Audio amplifiers IC's damaged need to be replaced

Posted on Apr 12, 2010

TOLhamRadio
  • 509 Answers

SOURCE: Protect circuit activated........where to look for

Typically a shorted speaker output. CHeck where your speaker wires are and see if there's just one wisker of wire touching the adjacent terminal. Check the back of the amp (easier said than done) and then check the back of the speakers themselves. Second most common issue is overheating. People leave an LP covering the ventilation openings on top of the amp and wonder why it overheats, so make sure you have air ventilation. Speaker wiring, then ventilation. Unplug unit, plug back in again, and power on and see if your problem goes away; if not, come back and we'll see what else we can try for you - okay?

Posted on Aug 13, 2010

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Can I connect my digital receiver to my grundig ghc 1000 home theater? And how I can make the connection?


That depends on the make and model of the radio, and the available inputs on the GHC1000. Does your radio have a line output socket? If not, you can generally use the headphone socket to source a signal. Then all you'll need is a cable with a 3.5mm stereo plug on one end and two x RCA plugs at the other - easily available at low cost from an electronics store. The RCA plugs go to a free line input on the Grundig amplifier and the 3.5 mm plug goes into the radio's headphone socket. HOWEVER some radios require a DC return path to detect that there is something plugged into the socket. You Grundig cannot provide this, and if your radio needs it, this method will not work. So hopefully your radio will not need it.....

By the way, you will have to experiment with the volume setting on the radio if you decide to try connecting it this way and find that it does work. Set too low there will be insufficient audio to run the Home Theater at reasonable volume, too high and you'll get distorted sound. Trial and error is the way to go, but start with the Grundig's volume control set to a low level and the radio's volume control set about half way - to protect your speakers from potential damage if you accidentally drive them too loud

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Plse help i have a grundig model 3680 serial 341010a0087248 need code plz?


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The enable your radio the activation code is in your vehicle owner's manual. If you do not have this code you need to go to your vehicle manufacturer's service centre and get them to enter this code for you.

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I need the code for my Grundig WKC 5300, S/N GR1030T0219435.


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1 Answer

Hello, I have an old Pioneer VSA-1000 home theatre


I have a Pioneer VSA-1000 with what sounds like the exact same problem. It is the world wide model with multi-voltage selectors.

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Amp protection circuit has been activated


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Hi
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though it might be a coincidence that you have a problem in the Receiver.
unplug the power cable from the wall socket and remove all cables.

after you remove the cables plug the power cable in the wall socket and try if you see the protection displayed , the receiver needs service.
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Your ICs audio amplifiers are in short circuit thats why that legend are coming for protect your theatre of more damage you got to replace the ICs.Good luck

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