An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 100 times.
Re: gem sound karaoke amplifier #exa1005
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.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
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.
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.
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.
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.
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...