Question about Audio Players & Recorders
System makes no sound. Unit powers on, and lights on base unit operate normally. Remote controls light up, and function normally. However, under normal operation, when one turns on a set of remote speakers you hear a relay click in the base unit, a light on the front panel turns from red to green, and sound comes from the speakers. This unit does not click when a remote speaker is turned on, and sound does not come out of the speakers, but the light for that zone does change from red to green.
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Posted on Jan 02, 2017
SOURCE: No output
If the board is not cracked , check voltages at the audio output relays. on the input audio terminals side of the relays ,if you have voltage you may Have bad output Ic's
Posted on Jun 29, 2007
Without looking at the schematics for this particular model, I'd surmise that the click is indeed a speaker protection relay. Generally this is fed by a number of different sense circuits that watch for power amp issues and/or excess speaker current and/or power supply output stability. Although the relays do indeed fail at times, generally it is not the relay that is at fault. If you have a scope and a schematic, you can check the various circuits that feed the relay for the exact cause. If not, you can do some experiments that might help deduce the problem: e.g. do headphones work when speakers do not, does the relay click on when no speakers are connected (or selected), etc. In my experience, it is most often the output transistor(s) in the power amp. But not always ;-)
Posted on Oct 15, 2008
Disconnect the speakers and see what happens. Carefully examine the speaker cables for unwanted connections (shorts).
Take a clue from when the power problem appeared. Something was moved and made the buzz a (probable) dead short.
Posted on May 16, 2009
Sounds like the volume control on zone 2 is your culpret. You should set up zone 2 to have a "fixed" output instead of "variable" it's in zone 2/3 setup. whats happening is you are overloading the volume control from the zone volume on the receiver and getting feedback to the receiver and shorting it out. What you do is put zone 2 to fixed output. set the vol control to 3/4 then adjust the vol to relatively loud and exit out of settings. this will be your max volume setting. Now, on to your problem.Unplug the receiver. There is an internal fuse that could have blown, not to likely but it's possible. You have to take the top off the receiver with a #1 phillips or a T10 torx they vary. It's about 7 screws, pop off the top and look from front to back, you will see 1 or 2 fuses near the AC plug port. Sometimes they are gray or white and you cannot visibly tell if it's bad. If you have a multimeter, set it tone resistance. Then put your leads on either side of the fuse, if you hear tone the fuse is ok. If not check your leads by touching them together and you will hear tone then test again. If you don't have tone, your fuse is bad. Radio Shack should stock the fuse you need. If you don't already know this, there are 2 Power switches for your unit. Front of receiver bottom left corner "Master Power" and normal Power switch "Main Power" check them both. If your fuses are good and power is good, you have bad transistors internally and it needs to go to service. check www.yamahausa.com support and service, and you can find the closest authorized service center to send it to. If you mail it out directly to the service center rather than taking it to a dealer, you will save some money and get it back faster. Lastly, pull your zone 2 volume control and look for black marks on it or white chalky substance. "oxidation". If you don't mind spending a little money on the system, hardwire the speakers thru and replace the volume control with an IR receiver. If you could control the zone from the zone by pointing the remote at the volume control you had an IR vol control. You really didn't need the vol part. Xantech or Proficient make good IR receivers that aren't too expensive and will keep this from happening again. If you need any more help, I am a Yamaha Dealer, let me know where your located and I can send you to a good service center. Just post a comment and I'll get you the info you need. Hope this helps
Posted on Jun 06, 2009
This sounds like a thermal issue, meaning after the receiver has been on for a while it gets to warm and then fails. I suspect after 8 years the unit may have accumulated some dust that is not allowing the heat sinks to dissipate heat adequately. I would use compressed air and blow the unit out. Some computer stores have blow stuff in a can that work well. If you have and air compressor, dial it back to 10 psi or so. You will be amazed at how much dust will come out of that unit so you may want to unhook the unit and take it outside. Also be careful not to stack anything on top of your receiver. Make sure there are lots of openings around the unit. High temperatures kill electronics.
Hope this helps.
Posted on Apr 03, 2010
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