Denon AVR1910 - "pop", then failsafe

[Chucklehead]

Having problems with my Denon amp.

Owned it for about 4 years now, all has been fine. Got KEF little egg shaped speakers - 1005? Can't remember.

First started having problems when I moved house a couple months back. On first setup it worked for 30 secs or so, then I got some light popping through the speakers.. then a louder "whip" and it all went black. The red power button on the amp started flashing ~twice per second.

Googled some suggestions, relaid the cables, checked all terminals and it has since worked fine.

I returned from a week's holiday yesterday, turned it on, and within seconds it popped and turned off.

What should I do to troubleshoot this or is my amp gubbed? One google suggested there could be an actual short within the speaker?

Trying to avoid taking the amp to a dealer if it's a simpler problem.

Thanks

[OldSkoolRS]

Go right back to basics and remove all the wires and cables. Then see if it will power up. If it does then add one cable at a time, just start it with a simple stereo set up then progress to extra speakers if this works OK. Obviously if you can't get it to power up with everything disconnected then things don't look good for your amp.

[Chucklehead]

Thanks.

I can still get it to power up and the other night it stayed on for about 3 hours without fault. It does seem to be getting worse though. Rarely more than a few minutes.

[anonymous-user]

Does it stay powered up without the speakers connected? If it does then it does point to a speaker connection with a short circuit, as previous commenter said disconnect all speakers and try adding one at a time and leave the unit on to see of it dies.

Personally it sounds like a power supply problem which needs professional repair.

[Chucklehead]

Not had a chance to try it without anything connected yet, hopefully tomorrow

[Chucklehead]

All speakers unplugged, still pops.. pretty conclusive?

[dave87]

I used SST when one of my Denon AVR-2809's rear channels stopped working. They were brilliant, so worth a call if you want it repaired. I think it was a guy called Tosh I dealt with.

http://www.sstonline.co.uk/

[Chucklehead]

Thanks for the info...

Thought it worth mentioning that after a lot of googling, someone had the same issue as me (also intermittent) and they traced it to fluff in the headphone jack.. can of compressed air later and it was fine.

I don't have any compressed air but blew in to it and turned it on.. it's been on for an hour now with no fault. Going to leave it on overnight and see what happens.

[Chucklehead]

...so far so good.

[Chucklehead]

Appears to be resolved.. dust in the headphone jack.

[335man]

I had the exact same issue with my Denon amp. I fixed it also by blowing into the head phone socket and have had no further problems for the past 12 months. It's a strange fault!

[OldSkoolRS]

This is a really weird issue, though it does make sense in some ways as the headphone socket usually cuts off the speakers when you plug them in. Fluff could also cause a loss of connection I suppose.

However, my second room system is a Denon AVR3805 that I've owned for years (maybe 7?) with no issues and I'm currently debating selling my main room Arcam AV9 and buying a Denon AVR4520, so reports of reliability issues make me twitchy.

[Chucklehead]

It's not that it cut out the speakers, it tripped the protection circuit and shut it down.

My dad used to have a denon that did the same thing and he tossed it.. I told him how I fixed mine and he was fuming

[OldSkoolRS]

Yes, I realised...that's why I said it could ALSO cause a loss of signal to the speakers.

I bet your Dad isn't happy with such a simple fix.