Uniden PRO450E UK PR27GB CB radio (mobile) - service adjustment
Автор: UK FM CB radio servicing
Загружено: 2020-11-30
Просмотров: 837
Описание:
Today's it's a CEPT only PR27GB specification radio, which is pretty useless around here as CEPT channels are often full of foreign interference thus reducing range to only about a mile.
So, I found a crack on the front PCB around the PA switch & managed to solder in three wire links to cover that drop damage; that brought back PTT operation. The PLL wasn't running owing to a 220uF capacitor being virtually short circuit.
Following a full tone-up, the radio managed to produce 3.1W (Wow!). Unfortunately, the display is duff & is a module that included the TX/RX light & bargraph display. Replacement appears impossible, but you never know what may turn up in a scrap box in the future.
Recorded 30th November 2020
Richard G0OJF
Lincolnshire, UK
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