Electronics > Repair
Hioki 3532-50 LCR Repair (One major problem solved, SM still wanted)
KungFuJosh:
--- Quote from: Martin72 on August 11, 2024, 08:30:45 pm ---I had fixed the crack above the display with an adhesive that we also use for fixing components that are used in armored vehicles....I don't know if it would have been necessary to repair it again. :P
--- End quote ---
I fixed it because it was broken. 😉
KungFuJosh:
--- Quote from: Martin72 on August 11, 2024, 08:35:15 pm ---This was the result of intensive irradiation with UV light and the use of hydrogen peroxide.
I can't imagine that a cream will give the same result.
Either way, the problem is more likely to be protecting the now white front from yellowing, because obviously the white doesn't last long.
--- End quote ---
The creme is hydrogen peroxide, but being a cream helps it hold in place on the plastic, and it goes in a bag to stop it from drying out. It might not accomplish more than what the previous attempt did, but it's worth a try while waiting for things to arrive from China.
What UV lamp did you use? I'd rather not leave it outdoors for a couple days if I don't have to.
KungFuJosh:
First attempt went better than I thought. 🤣
In the youtube video I watched, the guy put the cream on with a brush. I was lazy and just lathered it on with my hand. I think the brush is better for a more even application, so I will do that for the next sunny day.
I left it outside for 8 hours, but I think maybe only 5 or 6 had sunlight. Next time I need to use the opposite hand railing; that one stays in the sun longer. Oops.
Martin72:
Wow, just wow... :-+
KungFuJosh:
Some more progress. The screen looks nice, and the LED backlight indeed does not need separate power. It appears that both the contrast pot on the back of the LCD and the Hioki's contrast pot work.
There's one probably minor flaw, and that's that the cable is soldered to the back of the LCD's PCB. The cable gets connected without twisting, which is nice.
The LCD also seems to fit fine in the front panel.
Also, it was packed nicer than anything I've ever received from aliexpress. Double boxed, doubled padded, and double anti-static too.
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