Question about Gem Sound GemSound PA-585 2-Channel Amplifier

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Gem sound karaoke amplifier #exa1005

Was doin a show music quitHad both red fault lights on.Shut it down let it cool for a couple hours.tried it again still wont work.did I get it hot,?or is it not good enough for my system?

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Please confirm from your speakers cables in good condition and from your speakers.make maintenance to your amp by air blower-clean air filter-keep good ventilation around.after cleaning and good ventilation make test with any media while you are connecting one speaker only and then connect the other one.

Posted on Jul 21, 2008

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Gemsound pa 1005 exa keeps shutting off


I Think that something like a transistor is getting hot and then shutting down. Exploring inside might solve the problem of what's getting really hot. You could even get some Servisol Freeze Spray, and wait for it to go off then spray it on the suspected part. That will cool it down and it should start up again. If it does come on, that part will have to be replaced.

Jun 28, 2012 | Gem Sound GemSound PA-585 2-Channel...

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Fault lights on


It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be with your output drivers. Please check for short on the outputs fitted for both the channels. Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise which can be a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board. Maybe the protect circuit by itself is shutting off due to a faulty bias or there is a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the amplifier comes out of the protect mode then check for short on the speakers.

Mar 11, 2012 | Gem Sound EXA1005 2Channel Amplifier

1 Answer

My CA Azur 640A v2 just cannot get out from standby because of protection circuit. the red light blinks showing that DC was measured at terminals, no matter if speaker cables are pluged in or not. In...


Most 640As suffer from this sensitive issue. It is not a fault, but a protection mechanism that is too sensitive. In some cases, it could be due to the open ground earth issue or Left & Neutral reversed at the wall plug. Check your wall plug's connection and if they are perfect, then it could be because of a electrical issue inside the amp. In that case, get the technical support from CA to fix this.

Jan 03, 2011 | Cambridge Audio Azur 640A Amplifier

1 Answer

Fault lights keep blinking


I have one upstairs in my repair que. There are some small glass fuses ( 20 mm long) on the power supply board.

Check those

Apr 20, 2010 | Crown CE2000 2-Channel Amplifier

1 Answer

Gem sound exa 3950 amp


Hi...
If it's a straight-up power switch then it will need to be replaced if it works off a relay then the relay is gone.

website

http://www.gemsound.com/contact.html#


Mar 24, 2009 | Gem Sound GemSound PA-585 2-Channel...

1 Answer

Gem sound amplifier #exa 1005


please disconnect your speaker from amp first-if fault goen connect your speaker one by one until you find the bad one-check the cable first and change it with new one and then change the speaker-if the fault still you will have a problem in your amp itself.

Jul 06, 2008 | Amplifiers & Preamps

1 Answer

Sound Distortion


use sonic slide switch and make ground connection between your 640p and turntable.-check cables and test with another good cables.-shut down any light dimmer around you and test.

Jun 29, 2008 | Cambridge Audio Azur 640P Amplifier

1 Answer

Gem sound xp-350 clipping


Hi There,

You have given me a good clue to your problem....

You say that the CD player goes well and does not shut the system down like the Live connections. This is a single input configuration...

This means that there is sound levels coming in from the live multiple connections that are too strong (Loud) for the amp to handle...
Its a good amp you have as its shutting down to protect itself instead of blowing up....
So.... set up for the live show then disconnect all but one of the live inputs and start the live session if its OK, then connect another of the live connections, and see if its OK, if it is then connect another live one connecting each one progressively until the problem occurs again...this last live connection is the one that is too loud in signal strength for the amp to handle causing the shut down...

Solution is to reduce tha signal on that last cable source to a level that stops the shut down...I remember that groups of guitar players have volume controls on each guitar and if these are set too high then this can occur....specially if they are all using the same amp without a controlled "mixer man" monitoring each input signal.
Rember the small meters on the mixing panel which have a green painted area and a red painted area the "mixer man" must keep the each meter needle in the green zone for all the inputs otherwise a shut down occurs.
Hope this helps you...

Cheers From
YUBEUT

Oct 26, 2007 | Gem Sound GemSound PA-585 2-Channel...

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