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Yamaha DSP-A1000 5-Channel Amplifier Questions & Answers
I have a Yamaha Natural Sound Stereo Receiver
Hi cfipp
You could fix this problem with a quick squirt of CRC 2-26 into the function selector switch connected to the knob you are wriggling. This will sort out the problem. If you need further advice, feel free to ask me. I will help you.
regards
robotek
No sound coming out on any channel
I would also guess you have a flashing indicator, correct? If you do, your amplifier has DC Offset(a damaged amplifier). If this is the case, the protection circuit will not allow audio on any channel.
If you are interested in having your Yamaha repaired, please look at my website, audioserviceclinic.com. You may contact me there. Thank you.
Own a Yamaha DSP-A1000.
If you run through the setup and certify it knows about the center channel first, then test it with tiones, then maybe swap the center speaker with another one you might come to an answer.
Yamaha DSP A-1000 input selector switch not working properly
As that unit is well over 5+ years old, I seriously doubt the part is available any longer. I doubt that you will even find a used part, and even if you do, it will probably be as bad as your switch. As I have worked on audio for over40 years, I would use LPS 2. It is a lubricant. Do not try this with WD40 or similar. Just spray the LPS on the wafers, or through any open holes in the switch. You just need a little. If you just squeeze the button, you will see just a little bit of foam. That is all you need. No more; no less. Rotate the switch from from left to right and back again multiple times. Try that. BTW, no manufacture uses these mechanical switches any more.The controls are now called Rotary Encoders, which basically are inputs to a display microprocessor IC(a computer within the new product) which in turn controls the inputs of a switching IC. It's the same as your old switch, just electronic, and much more complicated. If you need more information, or would like to inquire about repairing your unit, please visit my website at audioserviceclinic.com. You may contact me there. Thank you.
No sound at all
The jumpers are there to connect the preamp section to the power amp section and are required for the receiver to opperate properly. Make sure the receiver is set to the proper input, in this case: CD. If there are A/B speaker connections, be sure the receiver is set to match the connectors you're using. If there is still no sound, profesional service will be required.
Input selector does not work
How old? is touch or mechanic switch?The switching circuit needs to be repaired or the power distribuition line. 5 or 12volts.
Dspa1092..fails to power on. depress
Generally speaking, an amp attempts to protect 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 'nekkid'. 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.
Check for loose speaker connections at the speaker as another possible root cause for intermittent shutdown.
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