David McGaw wrote:
The 10811 is the newer SC cut crystal oscillator. The 10544 would be
the older AT cut oscillator.
At 09:43 PM 10/14/2006, you wrote:
I got an HP 5370A from eBay which did not work at power up (display was
messed up). After resetting all the ROMs and the CPU in their
Bruce,
Thanks for the explanation, and you were right on the money. It looked
like one of the tuning caps was open, funny that it resonated so close
to 30 MHz. I reflowed the solder joints on the two 500pF capacitors
(even though they looked fine under the magnifier) and voila, Bob's your
Didier Juges wrote:
PS: The card edge connectors on this unit are extremely tight. I
easily broke one of the extractor on the CPU card, and the ROM card
I am very careful to remove boards like this, I don't like to break the
extractors. Once I get them removed, I give the card edge a wipe
