Fixing a Retekess TR110 Multiband Receiver

This portable receiver is a true multitool among handheld radios! Versatile and universal, not a bad start into shortwave listening. The problem is, it's not exactly a brick outhouse, it could be better built to make it more reliable.
I had two of those in for repair - this one with a damaged tuning button; the other one with a display issue. Both are fixed now.
A bunch of youtubers made videos on this model, including @IMSAIGuy with a thorough walkthrough here: • #1554 Retekess TR-110 ...
0:00 Intro - skip to 0:42 for usual ragchew
1:40 Quick Demonstration
3:2 Discombobulation
5:50 We're In! What's Inside?
8:21 Pretty Versatile
9:20 Under the PCB
10:07 Replacing the Damaged TACT Switch
15:00 Recombobulation
18:58 Afterword
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[@5cyndi]

Radios have advanced a lot in a short time. Although IC radios are not new-even multi-modulation-method and multi-band-this combo seems to incorporate more integrated analog circuitry than what I’ve seen before.

[@KeritechElectronics]

I think it may even be software-defined radio implemented on a microcontroller.

[@standodge5536]

Glad to see you could fix it...I would have just thrown it away. Radio is cancelled.

[@KeritechElectronics]

Easy peasy, lemon squeezy. This was a very straightforward fix.

[@mikebarushok5361]

You have a new covering for the work bench. I used to be in trouble for the condition of my workbench when I was working at a manufacturer of radio and avionics test equipment. But they couldn't complain too much since I got so much more done than any other two people combined. And, people would bring me problems they spent half a day on, and I would find the problem within 10 minutes usually.

[@KeritechElectronics]

Yes, I bought some ESD safe mat and upgraded the bench. Waaaaaaaaaay nicer now!

[@mikebarushok5361]

​@@KeritechElectronicsNice! I've not seen anything other than very ugly industrial colors for ESD mats. Very nice choice of color.

[@KeritechElectronics]

@@mikebarushok5361 I'd go for pink or purple if I could, but green is indeed nice too.

[@sa8die]

hi Keri !!!!

[@zdzisiek1979]

akumulatorek jak do mojej noki 216. czyżby ta lampa to jakiś widikon

[@KeritechElectronics]

Tak - widikon PWM-41A z kamery TP-K162.

[@robertjonasar2053]

There is absolutely nothing to it!

[@KeritechElectronics]

Yeah. Just a piece of a circuit board, that's that. No fancy schmancy PCB design, no shielding, no tuned filters... nothing.