How can you trouble shoot and repair a home stereo receiver?

Question

I have a Yamaha HTR-5730 that will power on, and then immediately powers back off. Does anyone know how to troubleshoot or repair this stereo, or can you direct me to someone who can. I would prefer to do the work myself if possible, since the cost at a service center would be a large percentage of the replacement cost.

Answer 1

I use to get into tube amps and when I had that happen to me on them it was usually a bad cap (capacitor). This gets tricky as 20 years ago I would just tell you to replace them (caps) all because that is what I did on my collection of old tube amps. However, today finding good caps that equal the ones in capacitance value in your Yamaha is not so easy.

To find the bad cap spray each one individually with freon (the cold helps in holding the capacitance) and you will know the bad one once the power stays on. Caps look like mini beer cans. Of course after the freon thaws it will lose its capacitance and powers back down but now you know your problem child and know what to replace. Good luck on finding it.

Last but not least you might have to trust it to a pro. If this was an expensive amp then pay the money and have it done right or it will only brake again very soon. Wish I could have been of better help.

Edit update: I have replaced the caps on my modern computers motherboard with complete success, so it can be done even by todays standerds. Just insure that the capacitance is within 10%. I think that is how that law goes.

Answer 2

You didn't say whether it did this when speakers were connected. Try disconnecting all speakers and plugs from the back of the receiver then turn it on and see if it stays on or immediately turns off. What you're describing is a "clip" that usually occurs when speaker wire is shorted out. Yamaha is known for not giving an "error message" when it clips and just turns back on immediately. This problem can also occur when you have too many speakers connected to a speaker terminal. If you've wired up speakers with a low impedance (check back of speaker) then it will simulate a short and shut the receiver down immediately as well. The receiver turning off is a power protection feature that keeps the receiver from burning out an amp channel.

Answer 3

could be a bad fuse or possibly heat issue. Make sure there is nothing on top of the unit and that the space it is in is at least twice the size of the receiver. If this doesn't do it, circuit mak be fried, you should take it to a pro to get it fixed. These are really the only two things you can check from home.

Answer 4

Mike, The enemy of electronics is warmth. a competent interior reach table fan dealing with your stereo receiver and mac mini will shop air circulating handling cooler temperatures. in case you placed the Mac on an ironworks styled stand, the backside won't get warm by way of fact lower back air circulates around the unit to maintain it cooler. The mac mini has small followers to administration warmth, in spite of the incontrovertible fact that to touch you could sense the upward thrust in temperature, elevation works hand in hand with preserving the gadget working under much less rigidity. i does not complication to lots approximately overheating if those concepts are considered. superb.