Sound like a dead front end if there is one. The main rig is strong enough to leak a signal into the Qcx mixer.

Excellent new, Bryan, and congratulations on the 8-pi DIP surgery. Please don't hesitate to share your experiences with us: success stories are never too long ! And lastly, yes, you're among friends

If D1 cathode is at 4.6V, IC1 is probably already dead :-( "Using the center pin on the voltage controller chip I read 12v and 6.6v there." I hope you mean the voltage regulator? And yes, that is way

Aha! That squelch - much though you'd like to think it is intentional - is highly indicative of the problem. There is no squelch in the QCX circuit, so I'm even more suspicious now that there is a

IC2 Pin 28 to JP6 pin 1 checks at zero ohms IC2 Pin 27 to JP6 pin 2 checks at zero ohms D1 Cathode measures 4.6v -Mark KA7ULD

Hi Mark. The issue with the Si5351 Error needs to be handled first. With power off, use your ohm meter to check for continuity between IC2 Pin 28 and JP6 Pin 1. Also check for continuity between IC2

Ron thanks for your reply. Yes, I did see +5VDC on pin #20. I will check tomorrow for continuity as you suggest. I'll post again with my results.

Hi Ernie, since I wrote that procedure, I take full responsibility for an obvious mistake in it and will send a correction to Hans tonight. That was supposed to say pins 7 and 20 (not 21). There will

0v, 4.8, 5.8, 6.6 Which caused me to go ouch. Using the center pin on the voltage controller chip I read 12v and 6.6v there. -Mark KA7ULD

Disregard the last. It does save the freq cal, just not the clock, which I dont need anyway for basic cw work. Thanks for the help everyone. Truly appreciated. Bryan, n0luf

Yes the ground if the same for GPS and rig.

Robert, Thanks for that. Okay. So connect it all and then turn rig on. Shut it all off and disconnect GPS? But....when I shut the radio off it looses both the clock and the freq calibration. How will

On Thu, Mar 24, 2022 at 12:33 PM, <mdcron@...> wrote: I have done some continuity of the buttons, specifically that center one and they appear to be ok all the way to pin 26 of IC2. Resistors next to

Rich. Thanks man. I got it calibrated and clock set. But...with the ground coming from the Paddle side the unit would not power up until I connected both. I suppose it would be safe to connect the

I would not hot plug anything into the radio.

Well, the way I do it and I’m not sure if that is the correct way is to turn on rig, connect to dummy load and the just plug in the GPS to paddles. Since my GPS is built into a clock, it is always

I have just completed my second QCX-Mini this one for 20M. Upon power up the display was one (1) row of blocks. In looking at the troubleshooting procedures by Ron WA7GIL, item #2 IC2 may not be

Thanks for quick responce. Okay. Is there any connection sequence? Can this be hot connected (with radio on)? In any particular connection order? Sorry to be such a dunce but I worked hard getting

What Rev of the board do you have?

Bryan, you do need to connect the sleeve to ground on the paddle side. It is normal for the rig to tx briefly and that’s why Hans recommends putting rig in “practice” mode. Rich