LCD top row is blocks, bottom row is blank


Piotr Skarpetowski
 

Hello,

I've already assembled recently received 40m band QCX TRX(T1.00e). When I power it up I am getting "LCD top row is blocks, bottom row is blank" as it is described in https://qrp-labs.com/qcx/qcxtrouble.html

I do have exactly the same behaviour as Karlis(https://groups.io/g/QRPLabs/topic/23353220?p=,,,50,0,0,0::relevance,,%23qcx,50,2,50,23353220,ct=1&ct=1) who described his problem.

When I am trying to listen about 20Mhz crystal, there is nothing, It is not oscillating.

Is there a way to check that AVR is not empty without using programmer? If not I will buy one.

--

73 de SQ5JUP,
Piotr

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