Ron Ward sayeth:
Hi:
I have been looking at the poor quality solder joints on the oscillator.
If you have a steady hand and a small tipped soldering with silver
baring (about 2% silver) solder, I would re-solder the connections. Many
of them do not look properly "wetted" and cold. Some of the heat from
removing the top may have re-soldered a problem connection.
I wondered whether that was possible but I don't think the inside got
anywhere near reflow temperatures - the only heat damage was that bit of
SRBP like stuff and the foam behind that looked much the same as
everywhere else. It probably did get above 100deg C for a while.
I'll give it a thorough clean and have a close look at all the joints
and SMT components when I have chance.
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