Tascam MS16/AQ-65 prob

[desh]

hello,
my aq 65 won't respond to its controls and is sending random commands to the machine whilst flashing randomly and very rapidly.
any ideas?
thanks
desh

[A Reel Person]

I've heard through several years on bbs's like this, that an AQ-65 that's flashing randomly and acting strangely has at least once benefitted from having it's processor & eprom chips removed and reseated in their sockets.

That's one tip I'd remember, specifically. Good luck.

[desh]

I've removed and reseated the EP-ROM chip which appears to be the only removable chip, but to no avail. It is about a centimetre from the power supply so I wonder if the heat has fried its brain. Perhaps I should replace it.
thanks anyway.
desh

[The Ghost of FM]

I had the same problem about a year back and found changing the main filter caps in the power supply was the proper and lasting fix.

There's a more detailed description of the problem and solution here

Good luck!

Cheers!

[desh]

OH Dear!
I changed the three electrolytic capacitors on the power supply PCB turned it on, it blinked randomly again and died a death.
I did in fact ring Tascam and the service engineer did suspect the power supply.
Can I have put the caps in wrong?
Do you have any further ideas?
thanks
desh

[A Reel Person]

.................

[The Ghost of FM]

There was only two main caps in the PS that needed to be changed and if you reversed any of them, yes, it would explain why it still doesn't work!

[desh]

I changed the caps round and a new regulator.
Working fine now. thanks a lot
desh