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Home Forums 68kMLA SE/30 - blown capacitor — #6
Post #6 by phreakout
Source Forum68kMLA
CategoryTroubleshooting
Post DateThu, 17 Dec 2009 - 20:59
Original URLhttps://68kmla.org/bb/threads/se-30-blown-capacitor.19312/
Post
I received my replacement capacitors from Trag (thanks, Jeff) and have started to solder this morning. I have three finished, when I decided to put the board back and try it out. One of the capacitors exploded. I immediately unplugged the unit, and have redone this one capacitor three times already. Every time, it keeps blowing. Any ideas?
Maybe I should hire someone to do this for me. I think member "Freakout" offers this service (if I haven't REALLY screwed things up yet.)
Don't feel bad, ortencia. I've done it once before. ::)

The replacement caps have to go in differently in order to work. Rimmer is correct when he says to flip the cap around.

Now, my mistake was replacing all the caps, but they were installed the wrong way. So I ended up blowing two caps (C8, C9, or C10) near the cable that supplies electrical power to the logic board. Luckily I cut the power before any further damage could be done. I flipped the new caps around and it booted okay, except that the sound chip(s) UB11 and UB10 were lost; I got distorted sound whenever a Mac audio was played.

If you'd like me to work on it, send me a PM and we'll talk.

73s de Phreakout. :rambo:

mp.ls