Hi Juan,
Did you build the kit, or did you purchase a prebuilt QMX?? If it is a prebuilt unit, I suggest contacting QRP-Labs to see if they will repair it for you.
What was the voltage the kit was built for???
What was the voltage supplied when operating?
Does the QMX come on, and does the display show the version version number before switching to the frequency display?? If the display does not turn on, the first use of the DMM comes in to verify the current draw when the QMX is turned on.
Do you have any test equipment?? The most important is a digital multimeter (DMM) that can measure DC current.? Without test equipment, the only suggestion that I can make is to find a local Ham club and find someone who can troubleshoot the radio for you.?
There is a troubleshooting page on the QRP-Labs website:
The above is just a start.? There are a lot of possible things that can go wrong.? All are based on how the QMX was operated or constructed.? Please read the manuals (Assembly and Operating) and the Troubleshooting page.? Post back the answers to the above questions.
73
Evan
AC9TU
