Hellp people. been away from old computers for a while but recently picked up an apple iie with the above monitor from an old friend
Powered it up after an inspection and boom - apple iie power supply lots of smoke. Opened it up and found 1 cap in bits and another cracked
replaced them with help of this utube video
got it working - monitor working - all good.
but after 10-15 minutes monitor display starts jumping, and stretching - figured it needs recap as well
opened it up and found same caps on a small circuit with the fuse (fuse board i guess)
these are the same RIFA caps that went boom on the apple psu.
there are 4 of them
the big one is .47uf 250 volt X......... i can find replacement for that ok (it looks ok, no cracks like the other 3 but seems i have it apart ill replace it !!)
but the other 3...2 of them have a Y on them im not 100% sure what im supposed to replace them with
will these do
http://www.ebay.ie/itm/20Pcs-472m-4700PF-X1Y2-Ceramic-Disk-Safety-Capacitors-250VAC-Y-Caoacitor-/181847140425?hash=item2a56ef2849:g:~74AAOxyj4hTGVc4
the 3 small caps are all cracked and i wont power this thing back up until i replace them cause they will probally explode as well
ive looked at all the caps on the main board , cant see any bulging or signs of leakage.
Is it likely that the 4 RIFA caps on the fuse board are the problem or is it best to just replace all the caps on the main board as well
cheers people
Powered it up after an inspection and boom - apple iie power supply lots of smoke. Opened it up and found 1 cap in bits and another cracked
replaced them with help of this utube video
got it working - monitor working - all good.
but after 10-15 minutes monitor display starts jumping, and stretching - figured it needs recap as well
opened it up and found same caps on a small circuit with the fuse (fuse board i guess)
these are the same RIFA caps that went boom on the apple psu.
there are 4 of them
the big one is .47uf 250 volt X......... i can find replacement for that ok (it looks ok, no cracks like the other 3 but seems i have it apart ill replace it !!)
but the other 3...2 of them have a Y on them im not 100% sure what im supposed to replace them with
will these do
http://www.ebay.ie/itm/20Pcs-472m-4700PF-X1Y2-Ceramic-Disk-Safety-Capacitors-250VAC-Y-Caoacitor-/181847140425?hash=item2a56ef2849:g:~74AAOxyj4hTGVc4
the 3 small caps are all cracked and i wont power this thing back up until i replace them cause they will probally explode as well
ive looked at all the caps on the main board , cant see any bulging or signs of leakage.
Is it likely that the 4 RIFA caps on the fuse board are the problem or is it best to just replace all the caps on the main board as well
cheers people
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