Just had this one on the bench which was blowing mains fuses. Couldn't find any tech info on line for this model so I was hoping it was going to be something simple on the mains side.
Opening up showed a blow out on the two varistors which were connected across the two main caps and had gone s/cct. Luckily there was only cosmetic damage to the top of the board and none underneath, which was a relief.
Replacement and firing up with a bulb in series with the mains showed everything to be OK. Full mains power, and we were back in business.
A quick check around showed all the caps to be looking good and as everything appeared to be OK I didn't venture further. Getting to the amp section would have been a nightmare so I'm glad it all worked.
Opening up showed a blow out on the two varistors which were connected across the two main caps and had gone s/cct. Luckily there was only cosmetic damage to the top of the board and none underneath, which was a relief.
Replacement and firing up with a bulb in series with the mains showed everything to be OK. Full mains power, and we were back in business.
A quick check around showed all the caps to be looking good and as everything appeared to be OK I didn't venture further. Getting to the amp section would have been a nightmare so I'm glad it all worked.

no audio out of the instrument channel, but some weirdness is gone and sounds now clean on the second channel. So I put my laptop on there and cranked the music full tilt. Sure enough, it goes crackle and pop with the bass in rhythm. Put my signal geni on it and sure...