[rescue] SPARCstation 1 boot woes

[Mouse]

>> It does, though, have an intact C10112.

>> It's marked

>> 	3 3 6
>> 	1 6 #

>> Also, I'd need to know whether the band marks the negative or
>> positive end of the cap.

I *was* able to determine this by measuring the non-exploded ELC's
C10112.

>> Anyone with enough experience with surface-mount caps to know?

> It's 33uF, 16V.

Good.  That's about what I'd expect for a power filtering cap.

> As for the polarization, I need more information.  Is it a
> cylindrical aluminum electrolytic, and is it a black ink or paint
> band?  Assuming yes, the band should mark the negative terminal.

It's yellow/orange plastic, a rectangular parallelepiped with solder
pads on the bottom ends, and the band is printed in the same ink as the
markings I quoted above (it looks like orange somewhat darker than the
body, perhaps low-hiding red or black ink).  Measuring the ends of
C10112 on the non-exploded board, I see, as referred to one of the
middle two pins on an unsed "Molex" disk power connector:

- Banded end: 12.15V
- Unbanded end: 0.058V

from which I perform the masterful deduction that the band marks the +
end. :-)

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