You're probably right, but the work is so massive, and also this time I
would like to understand and target this breakdown instead of working
(as usual) in blind mode.
In addition, I do not see the same type of capacitor on the CPU board as
the one from the subsystem you quote as being known to break down.
Do you think that the small green capacitors here
http://www.zeltrax.com/classiccmp_forum/uts40_from_usa_08.jpg
can be as fragile as this model there?
http://www.zeltrax.com/classiccmp_forum/uts40/8406repair07.jpg
Dominique
On 2/10/2017 19:05, Camiel Vanderhoeven via cctech wrote:
On 8/13/17, 11:15 PM, "cctech on behalf of Dominique Carlier via cctech"
<cctech-boun...@classiccmp.org on behalf of cct...@classiccmp.org> wrote:
On 12/08/2017 19:35, Al Kossow via cctalk wrote:
the black one in the lower left
it is a tantalum, which are known to short, try removing them
Yes ! It was this one that was shorted !
I decided in the same way to repair the second disk drive but this time
by taking some pictures.
It would be a good idea to replace all tantalum capacitors; if two
shorted, chances are others are on their way out soon, too. Sometimes,
tantalum capacitor failure is paired with a nasty epxlosion that can make
a mess of things.
Camiel
