¿ªÔÆÌåÓýHi , You may see the attached foto , zoom in to see the red & green wires soldered to the DIP relay points Green for Rx and Red for Tx which is fed to the dual color LED ( three terminal type) the centre goes thru a 680 ohms resisitor to gnd. happy homebrewing best 73 Pop VU2POP ? From: BITX20@... [mailto:BITX20@...]
Sent: Thursday, January 05, 2017 8:49 AM To: BITX20@... Subject: [BITX20] Re: LED for XMIT indication ? ? Well, I'm not sure photos would do, and it might take several. Plus there's 20 minutes of disassembly? and re-assembly - it's screwed to the box...! ... you'll see the PTT and the 'main' relay - Pins 1 and 3 are RX+12V and TX+12V, respectively. can even test this with a voltmeter. Pin 1 will be +12 during receive. PTT and it will drop and TX (Pin 3) will pop up to +12. ? Pick off your 'GREEN' and 'RED' anodes. Most Bicolor LEDs I've seen have a common cathode, so that (center) wire is ground.? ?? ? The PTT Relay is right in front (and down a bit) from the PTT connector. PIN 1 is 'down' & 'right' (if you're looking at the wireup.html page).
socket) Pin 16 is ground. You can either run it to a connector and 'crazy glue' or hot-glue to the PCB just underneath (and to the right of) the power connector - or, you can just run them in the free-air, maybe use some shrink tubing to keep them together. Just run them to your Bicolor LED. ? Mike Y |