Question about Yamaha RX-V800 Receiver
I have a Yamaha RX-V800 receiver now for a couple of years. Very good. It started with a problem of not powering itself on. Sometimes it will power-on but if you try to press any other button (s) it will shut itself down again and you have to try many times untill it powers-on again. Once succesfull, you have to let it work for quite some time to be able to start selecting the various functions on it. It has been to the shop many times but it always returns with the same problem. The nearest big town that might have a Yamaha authorized repair shop is at least 3000 miles away. What is the problem??? Thank you John Jezierski
That problem is well known problem with a memory capacitor on the stand up board that is the control board. It is .47F 5.5 volt capacitor that resembles a button battery. The cap leaks all over this board the fluid is conductive and corrosive. So the cap must be removed and the board scrubed clean with contact cleaned and dried before replacing with new cap. the unit can run without this cap but if the power should be removed all customer settings will revert to the default. also check the copper ground screws for tieghtness.
Posted on Jul 08, 2007
John, i was with yamaha before and i experienced this kind of problem in some of their models including rxv800. this is grounding problem and modification has to be made. if Yamaha authorized center will not modify the grounding and just follow how it is then it will keep on coming back. i can not be specific though which boards needs grounding. it has to be well inspected and do the modifications. thourough check and observation needed.
Posted on Mar 31, 2008
Hello, I also had this problem with my RX-V800 and I sent it out to Tweeter and they found a memory cap that went bad. They replaced it for $14.00 along with a labor/service charge of $110.
Posted on Sep 25, 2006
Could be a broken or cold solder joint on the main board. I assume you have checked all speakers and wiring to look for shorts. Second it could possible be the protection circuit in the amplifier itself is malfunctioning. finally it could be a component on the circuit board that fails under load any of these conditions can cause an amplifier to go into protect mode. A good shop tech should be able to find the problem with the schematics. If you have had it in several times for the same problem you may want to try a different tech.
Posted on Sep 01, 2006
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