Amp board replacement

[Rettib2001]

Hello,

Rather an unfortunate situation, one of the boards in my monoblock A80 MKII amps has fried (possible teenage son related cause).
Is there a way of purchasing a pair of pre-populated boards (I'd rather replace both at the same time)?

Am I right in thinking the boards are the same across the range? I'd consider buying a second hand A20/A10h and harvesting the boards but in an ideal world new boards would make sense.

Thanks for any guidance you can supply,

Best regards

Mark

[Latteman]

Best return to Nva for diagnosis

[Latteman]

https://www.ebay.co.uk/itm/186331120998 ... media=COPY

[Latteman]

In the good old days I bought quite a few Nva amps that were on eBay spares/repairs and have restored a few for diy purposes, changing to power supply etc- not an easy task- getting into the amp is usually the hardest part.
But I’ve always kept a working original which is currently an A30

[Rettib2001]

Appreciate the replies.

Funnily enough I did spot that ebay add, I'll keep an eye on it. My only fear would be mixing and matching differently aged boards. I understand the design won't have changed but there is something more reassuring about two brand new boards.
I'm already inside the amp, I can see the board need changing. Not a pretty sight.

[Latteman]

Pics

[Rettib2001]

Here’s the damage.

[Latteman]

Hmmm
Never seen a board with damage that ‘far up’ - what did u do- be honest you are among friends

[Rettib2001]

Whilst setting up his games console my son unplugged the amp and speakers. When he plugged everything back in the amp started smoking. I quickly turned everything off and unplugged it so I didn’t get a chance to analyse what he’d done but I’m guessing some sort of speaker cable short circuiting by plugging L out in R in… or something like that.

[Latteman]

Yep that’s bad luck
Best get it back to Nva for assessment if u are in the uk

If not diy is possible- TIP147/142, thermal paste, selection of resistors a multi meter and soldering iron-