TRX Bench

Standard Radio stands for quality and still it is! Very much worth to maintain and refresh it. We show how!

Different faults on different portions of the radio. Repairs, modifications and alignment necessary to bring back to service.

....and you can not operate the hand held radio when it is connected to a power supply. It simply does not fire up.

Intermittent issue see what we find....

SMD microsoldering on PLL chip

Nice PLL /VCO issue to learn the concept and principles to manage this kind of problems.

Watch the earlier three parts of this series first to get the complete overview
PART 1: https://www.youtube.com/watch?v=kMlKfHHR8FY
PART 2: https://www.youtube.com/watch?v=JhAPJISUjB8
PART 3: ht...

Micro Soldering QFN MLF chips Using Hot Air

How to approach a PLL issue on a Icom IC 706

fully step by step approach with explanations

And a bit about handling a LED

Native speakers please set video speed to 1,5 or 2,0

General considerations on Bench Top Multimeters and hand-helds.
My personal view on this topic. Review will be done in Part 2 soon!

coax impedance how to test and why 50 Ohm

....or the horror pcb show

What a funny outcome :-) ---A lot to learn even for me

How to troubleshoot a classical audio issue

A tutorial and troubleshooting technique on 2 way radio microphones

Nice Android application for your miniVNA Tiny

Nice PLL / VCO fault

The bootloader problem at the end of my video was MY fault. Firmware 2.29 is now flashed to my LP-500. With the next firmware upgrade I demonstrate the process and what I have done wrong! It is ...

deep impact by overvoltage...

bizarre fault

some funny findings in this repair I did not expect....

This video shows how you can test if your radio gives out the trigger potential for keying an external PA

This is really odd....