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Electronics => Repair => Topic started by: ysonmezer on May 27, 2017, 08:04:05 pm

Title: Yamaha RX-V659 Power problem
Post by: ysonmezer on May 27, 2017, 08:04:05 pm

I use a Yamaha RX-V659 receiver. I had previously burned the capacitor on the power board 22nf 630v. I changed it with 22nf 1000v so that it would burn again. The device recently made a power failure. This condenser series had a 220k resistor burned. I changed but the device did not work. These two components are attached to the series burnt surface mount 10v zener. I changed and worked.

Title: Re: Yamaha RX-V659 Power problem
Post by: mzacharias on May 29, 2017, 11:58:43 am

R661 should be 2.2K (2200 ohms) not 220K.

Title: Re: Yamaha RX-V659 Power problem
Post by: oldway on May 29, 2017, 04:22:39 pm

And C654 must be a X2 capacitor for safety.
With C654 = 22nf 275Vac X2, you should never burn R661, nor the zener diode.