[MRCA] More RF-350K pictures

[Ray Fantini]

Now that I am working on a Harris RF-350K again thought I would post a couple habits that I picked up that may be helpful if you own one. First, I put labels around the interconnect board for TP1 thru TP5 and DS1 and 2, would have cost Harris maybe fifty cents to do this in the first place but they did not. All troubleshooting starts with checking the status of the power supplies and that's where these test points come in. Second, in addition to the exploding capacitors think the highest failure rate item is the Low Pass Filter board the dreaded A1A5 card and its relays. I printed up a couple cheat sheets that I hang above the work bench to help locate things like what relay for what band and how to force the oscillator on. And one last thing. Life is much better if you separate the DC power supply from the RF deck and move them one at a time.


Ray F/KA3EKH

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20250314/9620a79b/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: relay.jpg
Type: image/jpeg
Size: 1257822 bytes
Desc: relay.jpg
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20250314/9620a79b/attachment-0003.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Low Pass filters.jpg
Type: image/jpeg
Size: 357863 bytes
Desc: Low Pass filters.jpg
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20250314/9620a79b/attachment-0004.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: test points.jpg
Type: image/jpeg
Size: 1017884 bytes
Desc: test points.jpg
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20250314/9620a79b/attachment-0005.jpg>