So here they are one down on the bottom board and the other half way already and no PEN sign yet !!!
I seem to notice that the issue appears to affect 6600s more than 6400s...maybe just because there are more of them out there. I'm just curious. I run DDUtil which monitors the internal temperature. My very early 6400 (which was not affected) run at 28.6 degrees C in normal standby mode in DDUtil, while my 4yr-old 6500 runs about 1.3 deg C hotter. For those of you who have a 6600 and have DDUtil, what kind of internal temperature readings are you getting? It likely has nothing to do with the problem, but as I say, I'm just curious.
FYI, we use the same ADC on the 6300, 6500 and 6700 without heat sinks at all but on a larger PCB. Heat sinking is through the PCB so the new heat sink is much better at dissipating the heat from the ground plan. We did thermal camera tests before and after replacement and the ground plane side is much cooler than the original copper heat sink.
Juan and all. As one of the first to experience this, My flex 6600-M worked just fine with the temporary zip ties in place, and subsequently, after installing the PEN, the transceiver is equally just fine. There are very few operators who put transceivers through the heavy use I do, I just used the 6600-M in a major contest effort over the weekend (along with a PGXL). both worked flawlessly under heavy and continuous use. Keep calm.. carry on.. install the PEN when it comes in... if you need to zip tie in the interim.. no worries. just be careful of the ADC boards, particularly the small transformers and SMT parts.. if you are not comfortable yourself you can always reach out to an elmer with experience with these types of issues...