I recommend against using tap water on any electronics. Use RO or
distilled water; that won't leave behind minerals when it evaporates.
Most IPA is only 70%; the balance is water. For flux removal, use 99% or
anhydrous IPA, available at most industrial hardware stores.
And, I surely would not use "soap" of any kind. You can use a detergent
but only a tiny amount is needed to reduce the surface tension. If you
don't get it all off by flushing, residue after evaporation of any
surfactant is not good...
Larry
On 1/23/2014 7:13 PM, paul swed wrote:
Joe
Been a while. Sounds like a reasonable approach with the soap and water.
The key is not to force water into the inductors. I take soapy water and a
tooth brush it works wonders. Then dry in an oven at about 100 degrees just
to drive off the moisture. Very gentle.
I guess the other point is to get a better feel for the gunk. Does soap and
water do it. The fact that IPA didn't is interesting. It may be oil based.
Good luck
Paul
WB8TSL/1
On Thu, Jan 23, 2014 at 9:41 PM, J. L. Trantham <jlt...@att.net> wrote:
I recently acquired a Z3816A as a 'spare' and it does not work reliably.
The ALARM LED sometimes comes on and sometimes doesn't. Sometimes it
tracks
and locks appropriately and other times it goes into HOLDOVER. The main
PCB
is very dirty and has the appearance that it has been in a humid and dusty
environment. I am suspicious that there are some 'leakage' issues related
to this dirt and would like to wash the board. What would the group
recommend for cleaning the board? I sprayed it with 91% IPA and used a
paint brush to try to clean the board. Some improvement but still dirty.
I
was thinking of warm soapy water with a paint brush followed by warm water
followed by 91% IPA followed by a hairdryer then an hour or two in an oven
at about 100 to 150 degrees F. Thoughts? I'm a bit concerned about the
inductors and the possibility of water leading to problems with them.
Also, I seem to recall a command that can be sent by SatStat to change from
GPS time to UTC time but I can't find it in my files. Is there such a
command or am I hallucinating?
Thanks in advance.
Joe
_______________________________________________
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
_______________________________________________
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
--
Best wishes,
Larry McDavid W6FUB
Anaheim, California (SE of Los Angeles, near Disneyland)
_______________________________________________
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
