NAD 3020 blowing fuses

Vintage Asylum

Classic gear from yesteryear; vintage audio standing the test of time.

This afternoon I was given a non functional NAD 3020.
Cosmetically it is near perfect so I'd like to save it if I can.
On start-up, it immediately blows the two 4A fuses downstream of the transformer.
When I measure the voltage entering the fuses, I get 49V AC betweeen them with 24.5V to chassis from each.
There is no obvious sign of heat or damage and no odor of hot electronics.
Does anyone have any idea what the cause is likely to be?
If its dead simple,I might fix it myself. If its a bit more complex but likely to be easy for an expert, I know a guy who's charges are reasonable enough to make it practical.
Thanks for any help.
David

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Topic - NAD 3020 blowing fuses - energyandair 22:34:41 11/5/05 (7)

Re: NAD 3020 blowing fuses - MIchael Samra 01:28:35 11/6/05 (1)

Re: NAD 3020 blowing fuses - energyandair 21:08:07 11/6/05 (0)

Re: NAD 3020 blowing fuses - BrassTeacher 23:33:26 11/5/05 (4)

Re: NAD 3020 blowing fuses - energyandair 20:23:33 11/6/05 (0)

Re: NAD 3020 blowing fuses - airtime 05:08:40 11/6/05 (2)

BTW.. - airtime 07:41:19 11/6/05 (1)

Re: BTW.. - energyandair 20:57:46 11/6/05 (0)

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