开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育

Re: #qmx Bringing up QMX, Nothing in display but terminal works, shutdown press does not #qmx


 

开云体育

In my case, it turned out to be that I'd damaged the trace from pin 14 on the LCD to pin 8 of JP304.

Fixed it and the display came on. :-)

There are still long delays from when I apply power to the QMX, to when it's ready to accept pressing the volume button. Then, once I press that, there's a long delay before the LCD lights up.

Is that normal?

If I break power, momentarily, it turns off. But when I power on, it responds right away.

Is that normal behavior?

Also, if I long press for power off, that shows in the display, but the LCD never turns off and the current doesn't go down. With the Shutdown Message showing, I can change modes and band. Looks like it's not really turning off.

Is that currently normal behavior?

Inquiring minds want to know! (Version 9 firmware)

(Not complaining, just want to make sure I've got nothing left to troubleshoot!)

73, Paul -- AI7JR


On 8/23/23 00:06, Rick NF6G wrote:

Paul, I had a similar issue, which turned out to be pin 3 of the display board making contact with the inductor on the power supply board above it. /g/QRPLabs/message/107812

Join [email protected] to automatically receive all group messages.