This radio had been 'Screwdrivered' by a Kitchen Table Screwdriver Expert and lost VCO lock, meaning it had no RF Output Power on TX.
Lost VCO lock can sometimes be hard to diagnose and even harder to regain, but I show a few 'tips' in this video to make life so much easier!
I show that we can learn a lot simply by looking at the power supplys amp meter (or external amp meter)
This video shows you how to regain VCO lock the easy way using a little tip I learned years ago.
Also, shows me tuning the TX power back up to 4 watts.
There may be some errors in this video, its a 'rough cut' and I didn't want to spend hours editing around them.
Errors and corrections will be noted here when found or pointed out.
1. Be aware, this is not an actual alignment video, its just getting the radio back into some sort of basic working state. A proper alignment procedeure will be done later when all the caps have been replaced.
2. Towards the end of the video I state the radio is doing 5 watts, but its not, the meter is still in calibrate mode where I set it to read 5 watts. It's actually doing around 4 watts!
3. All through the video, I keep calling the coil 'cans' the pots... I think you all get what I was meaning despite me using the wrong words.
4. A few times I call the power meter the power supply. IDK why, it just happened.
5. When I test voltage at the PLL chip, its not pin 7 its actually pin 8. Its still the second pin in from the other end, so I was half right! lol
I've finally opened my facebook page to all comers, join me here: [ Ссылка ]
(previously I've kept my profile very locked down, only allowing actual friends and family)
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