My first ever amplifier failure

[Al ears]

I have never owned an amplifier that has failed whilst in my possession..... until now.
Got some new speaker cables for my birthday and fitted them to my new acquired Rotal RA1062, highly regarded by some on this forum.
Eager to listen to some music I put some on only to notice no sound out of left hand speaker.
Checked cable for continuity, it was fine.
Tried the set B speaker outputs on the amp, same thing, nothing to LH speaker.
Tried my backup speakers, same thing, no output to LH speaker.
Must be pure coincidence but seems something has failed in the amp before I changed speaker cables as it was working fine before.
Anyone know a decent repair specialist.
Back wiring up my main amp tomorrow.... ho, hum!

 

[rainsoothe]

Ouch

 

[MUSICRAFT]

I have never owned an amplifier that has failed whilst in my possession..... until now.
Got some new speaker cables for my birthday and fitted them to my new acquired Rotal RA1062, highly regarded by some on this forum.
Eager to listen to some music I put some on only to notice no sound out of left hand speaker.
Checked cable for continuity, it was fine.
Tried the set B speaker outputs on the amp, same thing, nothing to LH speaker.
Tried my backup speakers, same thing, no output to LH speaker.
Must be pure coincidence but seems something has failed in the amp before I changed speaker cables as it was working fine before.
Anyone know a decent repair specialist.
Back wiring up my main amp tomorrow.... ho, hum!

Sorry to hear of this. The internal fuses might have blown. You should be able to see the fuses through the vents. If so, then in the first instance please check with Rotel/B&W before proceeding to replace them.

 

[Al ears]

Sorry to hear of this. The internal fuses might have blown. You should be able to see the fuses through the vents. If so, then in the first instance please check with Rotel/B&W before proceeding to replace them.

Many thanks. I will check fuses tomorrow.
Certainly a question as to why they might have blown.
Back to saving for that Parasound Hint 6 for me I guess......

 

[Gray]

That's one of those things that only happens to other people!
Was a coincidence that it failed after swapping the cables too.
Out of several amps, I've had just the one (Marantz PM66KI) that's failed.
Another coincidence, a Rotel amp with a channel down

Question - Only one channel - Scrap or mendable?

I'm selling my old 1970s hi fi that hasn't been used in years. I have a Rotel RA 312 amp, but only one output channel seem to work. Before I stick it on eBay as spares or repair, are there any simple quick checks I can do to see if it's s simple fix ? Thanks

forums.whathifi.com

 

[Deleted member 108165]

Oh dear, that's a bummer

 

[Deleted member 108165]

Out of several amps, I've had just the one (Marantz PM66KI) that's failed.

Ooh, guess I'd better start saving for a new amp

 

[Gray]

Ooh, guess I'd better start saving for a new amp

Maybe you should, you saw the review from Hawkwind16

 

[Surly Sid]

Feel bad for you. Good luck.

 

[GSV Ethics Gradient]

Oh dear, that's a bummer

That is exactly the word I was going to use. Fingers crossed it's an easy fix.

 

[Gray]

That is exactly the word I was going to use. Fingers crossed it's an easy fix.

You two Bummers are right, it's an undesirable situation.
It was both channels that just cut off while mine was playing. Power light still on, but silence.......swearing.......more silence.....the cycle repeated till I realised that swearing wasn't curing it 😞

 

[GSV Ethics Gradient]

There's always Percussive Maintenance.

 

[Al ears]

Or indeed the final ' over the side float test'

 

[Deleted member 108165]

There's always Percussive Maintenance.

I take it that involves a hammer or two

 

[GSV Ethics Gradient]

Nothing that crude, just a sharp tap on the top. Works wonders.

Or indeed the final ' over the side float test'

I used to be the Ops director of a previous company, and technology fell under my remit. We had a nightmarish period in the very early noughties when our server royally knackered day to day activity. When (eventually) resolved by replacement, I gathered everyone outside the rear of the building and dropped the old server from my second storey window into the car park below. It didn't survive...

I can't begin to tell you how satisfying and cathartic it was - I can still hear the laughter!

 

[Gray]

Or indeed the final ' over the side float test'

A Bristol statue failed that one.

 

[Gray]

....I can still hear the laughter!

Probably not from the bloke it landed on 👳

 

[Gray]

....back to the Rotel.
Have you checked out the fuse yet Al?

 

[Al ears]

....back to the Rotel.
Have you checked out the fuse yet Al?

Just, and just fitted new ones.
In the photo below the upper fuse to left of the lower capacitor had blown.
I have removed it in the photo. Nothing else obviously amiss.
I will be tempting fate and wiring back up this afternoon to test.
Fingers crossed.

 

[Al ears]

Latest news........ it's alive!
Working again, however just wish I knew what caused it to blow in the first instance.
Anyhow, feeling relieved.
Thanks Musicraft for your input, I was sort of dreading what I might find when I looked under the hood.

 

[GSV Ethics Gradient]

Great stuff - it's always satisfying to fix something yourself, even if it turns out to be relatively straightforward.

 

[Al ears]

Great stuff - it's always satisfying to fix something yourself, even if it turns out to be relatively straightforward.

Isn't it just. Good to own a multimeter, saved myself a fair bit but not having to ship it off.
Glass of red tonight I think.
Just in time to listen to a belated birthday present, MOFI Supertramp 'Breakfast in America' SACD

 

[Al ears]

Price to fix was £3.75, and that was for 10 fuses of which I only used 2...... bargain!

 

[ast2312]

Glad to hear you got it working again!

 

[Al ears]

Glad to hear you got it working again!

Not half as glad as me but many thanks.