Topic: Yamaha receiver power turning off.

[firestorm]

Hi, I was watching a movie 2 nights ago and after around 1hour 10mins of the movie my 8+ year old yamaha receiver turned off. I tried pushing the on button nothing happened after a few minutes I pulled the plug and plugged it right back in and it turned on. I watched about another 20 minutes then it turned off again.

So the next day I took off all speaker connections and turned on the receiver with nothing connected. It was on for about 2 hours and 40 minutes then turned off tried the plug pull it would turn on but turn off right away. I let it rest for about 20 mins then turned it on again. this time it lasted about 1 hours 15 mins before turning off again.

I took off the chasis and inside the dust was really accumulated. I'm thinking it's causing it to overheat and activate it's protection mechanism.

Any ideas or suggestions on what I should do? can you suggest a place I can bring to have it cleaned.

Thanks.

[t-bone]

PM Markcrenz

[firestorm]

PM Markcrenz

I thought of that, but read from the forum that he is currently unavailable to do any repairs.

[bogart.2006]

I thought of that, but read from the forum that he is currently unavailable to do any repairs.

ah, kaya pala di nasagot sa text ko si master hehe

[Audionuts]

gumagamit ka ba ng Automatic Voltage Rgulator maselan ang Yamaha sa voltage Irregularities.

[firestorm]

gumagamit ka ba ng Automatic Voltage Rgulator maselan ang Yamaha sa voltage Irregularities.

yes, meron voltage regulator. My guess now it's overheating since it shuts down after a while of turning it on and the on time lessens when I use more speakers. I tried with no speakers, 2 speakers and 5.1 speakers. Or worst case, some capacitors are starting to fail.

[t-bone]

I took off the chasis and inside the dust was really accumulated. I'm thinking it's causing it to overheat and activate it's protection mechanism.

Any ideas or suggestions on what I should do? can you suggest a place I can bring to have it cleaned.

Thanks.

Get a soft brush.  Open the chassis.  Put an electric fan beside the amp.  Brush of dirt.

Operate amp and observe.