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Author Topic: Amiga 3000 acting up resistor  (Read 1458 times)

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Offline Blizz1220

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Re: Amiga 3000 acting up resistor
« on: June 22, 2015, 01:46:23 PM »
Well , try to check PSU for voltage values first.

Other case could be that something has broken and is
now draining too much power for resistor to survive.
Like some component getting reallly hot before resistor
gets burnt.

BTW is your Amiga fully functional this way (if you can
test it to boot I mean? ).If it is maybe better not repeat
the process too many times.Sound issues are almost always
connected to -12 V so peeking inside your PSU may not be
such a bad idea (or was it recapped too ? ).

That resistor is connected to cap that gives power to some-
thing and may be there to lower it or may be there as a simple
protection so the shock doesn't go any further).

I never really fixed any A3000s so this is all I know :P
« Last Edit: June 22, 2015, 02:01:18 PM by Blizz1220 »
 

Offline Blizz1220

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Re: Amiga 3000 acting up resistor
« Reply #1 on: June 25, 2015, 09:43:31 AM »
@spudje

I would check if that cap isn't backward soldered first as
was suggested.That could be the reason for burning and
even if you put stronger resistor while the cap is backward
it will just swallow up.

On the side note , soldering job seems to be done well from
what I can see (without seeing back side of the board) , I
tend to make it messier :lol:

I had no idea A3000s were such a pain to fix :(