piclist 2000\06\09\084751a >
Thread: XTAL startup issues on PIC 73B
face BY : Jim P email (remove spam text)

Daniel -

Short of fully characterizing a crystal that works against a
crystal that doesn't work in a crystal text fixture using
appropriate test equipment -

Does a change to the parallel cap values have any effect
in getting a bad crystal to work?

Can you change just one of the parallel caps and get
the crystal to work?

By now you should have a pile of 'bad' parts - when a
difference that 'cures' the problem is found - try several
different bad xtals. I have used small machine pin sockets
with xtals successfully in the past to 'socket' xtals.

These are the kind of 'general' things I would try in order
to 'see' what works then go from there ...

Jim P

{Original Message removed}
<009f01bfd210$e4468600$84292cd1@piii500a> 7bit

See also: www.piclist.com/techref/microchip/time.htm?key=xtal
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Subject (change) XTAL startup issues on PIC 73B

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