Question about Yamaha RX-V661 Receiver
Your unit is on protect mode. This happens because an internal fault had been detected, and the protection circuit keeps turning off the unit to prevent further damage, hence the clicking noise. The clicking noise is the protection switch that keeps turning off the receiver.
When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.
Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.
Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.
If you do all the above and receiver does not start, then there is a real fault.
In that case the unit may be disassembled and tested to find the fault.
If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.
Posted on Jul 14, 2009
HI. this clicking sound is coming from the actual power sector(board). there is a relay on this board(power relay/circuit protector). it will not allow the unit to fully operate when there is a malfunction detected. This is a basic circuit failure. The power sector may have several components that are down at this moment. the bad news is, almost all Yamaha repair procedures will need to be sent it to be initiated. A Yamaha service depot or local tech service department will be needed in this case. the power board, and its components, are not available for consumer purchase.
Contact Yamaha for a repair ticket if possible. the power board will need to be replaced asap.
((Most older models will have an in line fuse that will absorb most power surges that will take out power sectors of this nature. Unfortunately, your unit dose not have this fuse.))
Posted on Aug 14, 2009
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Posted on Jan 02, 2017
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Generally speaking, an amp protects 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 'naked'. 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.
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