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UbitX V.5 Test point

 

Is the test point data for UbitX Version 5 available?
 

The v5 and v6 are almost identical.? The only differences are board layout and the controls and jacks were moved to the mainboard to make for a solderless kit build.? You can use the v6 data for any of the test points.

It would be more helpful if you asked what you were looking to measure or explain the reason you want the test point data.? I am not aware of a comprehensive test point data compilation.? As problems have come up for builders the community has measured points on the board to help solve a problem.??

The above is my understanding after monitoring and contributing on this board for over 2 years.
73
Evan
AC9TU
 

First of all thank you for answering my question, I am not getting power output, the mosfet transistors are in good condition.
That's why I was asking about the test points.
Thanks again!!!
 

I always start by testing the CW output to verify that the power amp is working.? If no power on CW then most likely it is a Q90 failure.? To test Q90 measure the voltages on each of the three stubs.? The values are listed in a spreadsheet that is stored in the files section of this board.? Search for vu2zap (Raj is the person who took and posted the voltages).? Note the test conditions that are listed in the spreadsheet, and be sure to have a dummy load (or tuned antenna) to the radio when transmitting.? Q90 voltages should be tested in SSB mode with no audio into the mic.

/g/BITX20/files/VU2ZAP

73
Evan
AC9TU

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