Wouxun KG-UV8D – fixing battery leaks

Disassembly:
– remove the battery, unscrew the antenna, pull off the handles (they just sit on friction), unscrew the clip;
– using a T9 hexagon, unscrew the 2 screws at the bottom of the battery compartment that secure the chassis to the front panel;
– use a flat screwdriver to pry up the bottom of the chassis and remove it from the body;
– unscrew 3 screws along the edges of the plastic frame of the screen;
– flip the screen over the keyboard field.
All!

Next, you need to cut with a scalpel (approximately to the depth of the copper) along the red line: The track itself is not visible – it is painted over with silk-screen printing, so we cut exactly as in the picture, i.e. from the transverse strip of silk-screen printing to the hole of the positive contact of the battery. At first, the wire ran like in the first picture, but it prevented the screen from lowering – the places for the frame stops are drawn with white circles on the board. I redid the wire like this: The wire should connect the second (bottom in the picture) contact of the power switch. It’s not worth taking a very thin one – the final stage is powered from it, and this is up to 1.6A. When assembling, check the black rubber seal around the perimeter of the chassis. After installation, the orange rubber band around the antenna connector will fall out – carefully fix it. Then reassemble in reverse order. After the modification, I measured the leakage current to be 95 µA, or I didn’t wait until all the capacities were charged (I started supplying it with a few mA) and at the very end it almost stopped falling. Perhaps some kind of electrolyte is “flowing”, but I was just too lazy to dig further. P.S. In general, not the entire circuit was de-energized before the alteration. The yellow line is always connected to the battery, but what was connected along the yellow arrow was actually disconnected: At the same time, after the Chinese, I washed off traces of soldering with active flux on the encoder, the volume control and a couple of other places, but this did not affect consumption in any way.