Removing the processor board is a challenge because (at least on the old board) the holes are a little too tight for the pins, so even if you remove all the solder, the pins will remain stuck. I found it easier to cut all the pins connecting the two boards and unsolder them one at a time.
When done, replace them with regular wire. Didier Sent from my BlackBerry Wireless thingy while I do other things... -----Original Message----- From: Steve <[email protected]> Sender: [email protected] Date: Wed, 06 Jul 2011 14:43:07 To: Discussion of precise time and frequency measurement<[email protected]> Reply-To: Discussion of precise time and frequency measurement <[email protected]> Subject: [time-nuts] fluke.l monitor for Thunderbolt . . . the saga continues Hi all, About a month ago I sought advice from list members regarding a dysfunctional fluke.l monitor for my Thunderbolt GPS receiver. Someone suggested that I contact Bob at fluke.l to see what he would do. I took that advice and thought some of you would be interested where I am now. Plus, I need some more advice :-) Communicating with Bob is a challenge due to my not knowing any Chinese and Bob having quite limited English language skills. Following a number of emails back and forth, Bob sent me a replacement microprocessor board. The layout of the replacement unit differs from the layout of the older microprocessor board. The lengths are about the same, but the replacement board is a bit more narrow than the older board. Further, the microprocessor chip on the replacement board is parallel to the short dimension of the board whereas that IC is parallel to the long dimension of the board on the older unit. Does anyone know if the replacement board with its different layout has the voltage problem I was seeing with the older board? The older board has the microprocessor VDD at about 5V. I understand that VDD should be about 3V and am wondering if the replacement board has corrected that problem? Is it as simple as removing the older, existing board and soldering the replacement unit in its place? Any tips as to how to most easily remove the existing board? Thanks. Steve -- Read The Patriot Post Vertitas vos Liberabit http://patriotpost.us/subscription/ _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
