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while amp is in use sometimes volume just fades out and then if i move volume knob around it comes bakwhile amp is in use sometimes volume just fades out and then if i move volume knob around it comes bak
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Re: I have a audio source amp 100 on a volume control ....
It is normal for power amps to get warm. Overheating can be caused by deffective speakers, or internal leakage on the transistors. Does is produce normal sound?
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NEVER USE MAXIMUM VOLUME FOR TROUBLESHOOTING or any real world purpose.
Turn the volume control to something medium.
The errant switch, control or condition may change and you will suddenly release the amp's full power and possibly destroying your speakers. If a signal isn't audible at 1/2 volume it's probably not there.
Carefully examine the front panel for clues like a misplaced Source Selection, Mute, Tape Monitor control or Multichannel Analog Input selected.
There is a good chance that a common control may have developed a high-resistance or 'dead' spot through defect or idleness and is causing your symptom. Turn the POWER OFF and operate every control throughout its range a number of times, especially rarely-used ones like Tape Monitors and the Mute control.
Turn the volume to something reasonable and see if that helped.
Ponder this: How does your unidentified Multiroom Controller fit into the audio path? Take it out and start over.
NEVER USE MAXIMUM VOLUME FOR TROUBLESHOOTING or any real world purpose.
Turn the volume control to something medium.
The errant switch, control or condition may change and you will suddenly release the amp's full power and possibly destroying your speakers. If a signal isn't audible at 1/2 volume it's probably not there.
Carefully examine the front panel for clues like a misplaced Source Selection, Mute, Tape Monitor control or Multichannel Analog Input selected.
There is a good chance that a common control may have developed a high-resistance or 'dead' spot through defect or idleness and is causing your symptom. Turn the POWER OFF and operate every control throughout its range a number of times, especially rarely-used ones like Tape Monitors and the Mute control.
Turn the volume to something reasonable and see if that helped.
I have a Korg C-15s and also experiencing loud crackling sounds when I turn it on. The problems seems to be either the sliding volume control or the amplifier itself. Honestly though, I believe the issue is the volume control. I opened my piano to get a closer look and attempted to clean the contacts on the volume. Unfortunately after cleaning the contacts, the crackling sounds became somewhat worse. After I turn the piano on, the volume control is generally rendered useless......volume set to low volume and the noise is quite loud and other times the volume control is set high and get very low volume crackling noise. No real consistency. The noise does diminish after a few minutes but so does the piano sounds to an inaudible level. There were a couple of instances where I turned it on and surprising enough, no no noise and perfect sound. For these reasons I believe the issue is within the volume control and not so much the amplifier. I have an electronics background and noticed that the volume control is very unique in design and is not something that can be substituted with another volume control from other sources.
My recommendation is to check the sound quality of the audio from the RCA L/R audio outs on rear of the piano by connecting to a stereo receiver. If it sounds fine you're in luck. If the crackling sound does not diminish after a few minutes like mine does, I would suggest disconnecting the internal speakers and using the audio out only. You can connect a pair of studio monitors or high quality computer speakers, preferably with a small subwoofer to deliver the full audio range and deeper tone of a real piano. I'm currently using a basic pair of Logitech computer speakers and is quite acceptable until I can afford a high quality set of monitors or relocate my piano closer to my high quality Yamaha receiver.
By-pass the external Volume control. It may not be "impedance matching" or it may have an internal issue. If it's located outside, it's probably corroded and creating a load on the receiver causing it to shut down. If you still have an issue beyond this , post a comment and I can help you troubleshoot further. Hope this helps
If you have a remote control , unplug the lead from the volume control (at the back of the machine) and instead of it plugging into the Inrfa Red control unit in the base of the cabinet, plug it straight into the amp volume input.
There has been problems with the remote that does what you are suggesting so this will prove the point.
the mani surround room should be connected to the front speakers A, Center, sub pre-out and surround.
for the other two rooms connect them to surround/back, go into settings and in power amp assignment assign the surround back speakers to the multi room.
once this is complete with your remote in the zone2 control mode you can play your sources in zone2 and control the volume also, if you have inwall volume controls set the zone2 volume to -10 and use the room controls.
To listen to the same source in both zones you will have to select that source in both zones
Set your SAT receiver to full volume and use your Sony TV volume control as the master volume control. If you use an external surround sound amplifier do the same thing using the amplifiers volume control as the master volume control.
Consider that all source devices that have the ability to control their output volume will output what they call line level 0dB when the source device is set for maximum volume. If you set the source device to 1/4 volume your output to the amplifier may be around -25dB or lower. Introduce that low of an audio level to the amp and you will have to turn the amp up to half way or better causing the amp to amplify noise too.
The source volume is too high or output from source is too powerful or the receiver is damaged. Try turning the volume down on the source device (cd player/dvd/satellite receiver etc) and recover the overall volume by turning the amp up. Also if the source device has any tone controls, return them to a flat setting, again using the amp to recover the sound richness.
while amp is in use sometimes volume just fades out and then if i move volume knob around it comes bak
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