Constant Hiss in my Right Channel of my receiver?

[Djanvk]

So I have a Yamaha CA-810 receiver and when no music or sound is playing I hear a constant hiss or what sounds like a radio station that I can't get in. I've tried to switch speaker, switch wires back and forth but I still get the sound. Sometimes when I pull out my RCA cables and put them back in it seems to kind of go away. It's only on the R side. Any ideas would be great.

THanks

 

[DaveVoorhis]

When you pull the RCA cables and it "seems to kind of go away", what do you mean by that?

Is it the hiss the same with all positions of the input selector?

Have you tried removing all input cables -- does the hiss change or go away when all input cables are removed?

Does the volume control have any effect on the level of the hiss?

Does adjusting the tone controls have any effect on the hiss?

Try repeatedly turning all the controls to their extremes and back, with the amp off. After that, has the hiss changed or gone away?

Have you tried cleaning the controls and switches with Deoxit or equivalent?

 

[ggregg]

CA810 is an integrated amplifier so I assume you have a tuner on this. Is the radio station what the tuner is tuned to or something else. The reason why I say this is that I used to live next door to an AM transmitter and that created all kinds of issues. I think you could pick it up in your teeth sometimes.

Assuming it's coming from the tuner, I would suspect an issue with the input selector, per above. Has you cleaned the controls? All of Dave's advise above is solid. I would try those first and report back.

 

[Djanvk]

When you pull the RCA cables and it "seems to kind of go away", what do you mean by that?

Is it the hiss the same with all positions of the input selector?

Have you tried removing all input cables -- does the hiss change or go away when all input cables are removed?

Does the volume control have any effect on the level of the hiss?

Does adjusting the tone controls have any effect on the hiss?

Try repeatedly turning all the controls to their extremes and back, with the amp off. After that, has the hiss changed or gone away?

Have you tried cleaning the controls and switches with Deoxit or equivalent?

Funny I went to check these out and now it's not doing it. I'll check next chance.

 

[Djanvk]

CA810 is an integrated amplifier so I assume you have a tuner on this. Is the radio station what the tuner is tuned to or something else. The reason why I say this is that I used to live next door to an AM transmitter and that created all kinds of issues. I think you could pick it up in your teeth sometimes.

Assuming it's coming from the tuner, I would suspect an issue with the input selector, per above. Has you cleaned the controls? All of Dave's advise above is solid. I would try those first and report back.

There is no tuner built in to it, I have a separate tuner for it but it's not setup. See my picture above my nickname here on the left.

 

[ggregg]

Not to split hairs but initially you called it a receiver, which it isn't. Which made me think you had a tuner on it. I sold those Yamahas new.

 

[Djanvk]

When you pull the RCA cables and it "seems to kind of go away", what do you mean by that?

Is it the hiss the same with all positions of the input selector?

Have you tried removing all input cables -- does the hiss change or go away when all input cables are removed?

Does the volume control have any effect on the level of the hiss?

Does adjusting the tone controls have any effect on the hiss?

Try repeatedly turning all the controls to their extremes and back, with the amp off. After that, has the hiss changed or gone away?

Have you tried cleaning the controls and switches with Deoxit or equivalent?

1. Yes
2. No it doesn't, sometimes though it does if I unplug and replug them
3. No
4. No
5. Seems to help
6. No

 

[Djanvk]

Not to split hairs but initially you called it a receiver, which it isn't. Which made me think you had a tuner on it. I sold those Yamahas new.

Not a problem, I have a habit of calling amp's receivers.

 

[DaveVoorhis]

With the amp off, remove both pre-out/main-in jumpers. Turn it on. Do you hear the hiss?

If so, put the jumpers back in and skip the steps below. The problem is almost certainly in the output section of the amplifier, and might be due to a failing electronic component. However, it's worth checking your speakers on a different amp to verify that there isn't an intermittent tweeter. An intermittent tweeter might emit a very faint (but normal) hiss from the amplifier when it's working, but not when the tweeter is dead.

If there's no hiss with the jumpers out, do the following:

Turn off the amp. Plug in the pre-out/main-in jumpers and remove them, several times. This will remove surface corrosion from the jumpers and their sockets.

Then put them back in. Turn on the amp. Is the hiss still there?