In article ,
Don Pearce wrote:
On Sat, 21 Nov 2009 13:20:40 +0000 (GMT), "Dave Plowman (News)"
wrote:

Just to say thanks to all for the tips - a couple of 10µF electrolytics
mounted on the PCB sorted it.

Only thing is what to do with it now - it's a great lump of a thing.
Ebay?

Sounds like a good idea. It was interesting to see how a real consumer
manufacturer approaches the tricky business of cost-cutting. And I
wonder how many died through oscillation. Warrantee repairs are
horribly expensive things to deal with.

To be fair it did work just fine for some 15 years.

d

--
*A conscience is what hurts when all your other parts feel so good *

Dave Plowman London SW
To e-mail, change noise into sound.

Dave Plowman (News) wrote:
In article ,
Don Pearce wrote:
On Sat, 21 Nov 2009 13:20:40 +0000 (GMT), "Dave Plowman (News)"
wrote:

Just to say thanks to all for the tips - a couple of 10µF electrolytics
mounted on the PCB sorted it.

Only thing is what to do with it now - it's a great lump of a thing.
Ebay?

Sounds like a good idea. It was interesting to see how a real consumer
manufacturer approaches the tricky business of cost-cutting. And I
wonder how many died through oscillation. Warrantee repairs are
horribly expensive things to deal with.

To be fair it did work just fine for some 15 years.

Yeah, Ive got two Yam AX-496 85 watt/channel amps, both still pumping out a fine
sound (IMHO) all these years later.

"Dave Plowman (News)" wrote in
message
Just to say thanks to all for the tips - a couple of 10µF
electrolytics mounted on the PCB sorted it.

You're saying that it is now working 100% - none of the origional
symptomology?

In article ,
Arny Krueger wrote:
"Dave Plowman (News)" wrote in
message
Just to say thanks to all for the tips - a couple of 10µF
electrolytics mounted on the PCB sorted it.

You're saying that it is now working 100% - none of the origional
symptomology?

Yup. I've had it on test for a day or so. No more crackling from the rear
amp and no more tripping. Never did find out the cause of the crackling -
but I re-flowed the entire thing anyway. Or it could just have been a
dirty connector I've disturbed.


--
*How do you tell when you run out of invisible ink? *

Dave Plowman London SW
To e-mail, change noise into sound.