Path: utzoo!attcan!uunet!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!usc!ucsd!ames!eos!phil
From: phil@eos.UUCP (Phil Stone)
Newsgroups: comp.sys.amiga.hardware
Subject: Part number for 8520 capacitor?
Message-ID: <6523@eos.UUCP>
Date: 20 Mar 90 17:12:04 GMT
Reply-To: phil@eos.UUCP (Phil Stone)
Organization: NASA Ames Research Center, Calif.
Lines: 29

Note: this is a repost of message to c.s.a.tech.  I
realized too late that it is probably more appropriate here.

I have had continuing problems with the FIRE pin
on the second joystick port (it seems to have blown
out from a powered-on connection, or static or
something).  I have tried swapping in new 8520's,
but the problem remains the same.  The Amiga always
thinks that the FIR1 pin (9) on the 8520 (U300)
is active.

Through the schematic, I traced the problem to 
capacitor C250.  Sure enough, an ohmmeter showed
there to be a short across this capacitor, which
causes the corresponding asserted (low) condition.

Main Question:

Does anybody know the part number for this cap (C250)?
The schematic lists it as 100 pF, but I don't
recognize the style (see-through, with copper-colored
bands at the ends).  Who sells this part?

Any caveats for replacing the cap?  I'm going to remove
the associated 8520 while I do the cutting and soldering.
I think it can be soldered from the top of the mother-
board.

Thanks for any info or tips you can give me.