Fixing a Retekess TR110 Multiband Receiver

[@ZCount]

Quite a fully-featured radio, I like that it has air band.

[@KeritechElectronics]

Whimsically flimsy, surprisingly functional :)

[@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.

[@chasemartin4450]

This would be a very interesting device to reverse engineer!

[@KeritechElectronics]

A bit hard for me, plus the functionality is mainly in the code.

[@sa8die]

hi Keri !!!!

[@thunderflower7998]

My radio round know...is not working anymore....any suggestion? 😕 I saw you took it off easily and put it back...clipping it...but mine is not working...

[@KeritechElectronics]

Not turning on at all? Check the voltage on the battery - if it's close to the rating (3.7V IIRC), the problem is indeed with the radio; I'd check the microswitches on the board. It takes some little spudger action to take apart, but it can be done - while I use a surgical spatula for that, you can use e.g. a credit card. After removing the two screws underneath the battery, start at the corners and move the spudger along the slot.

[@thunderflower7998]

It is the round turning knob...or what is it called..the tuning knob...on the right upper side ...I saw you touched it and moved it as if nothibg haopens...but mine...is just not moving anything on frequencies ...there is some sort of glue there......but i dont kniw....I had it for some seven months working perfect ....now i need to fix it it...

[@KeritechElectronics]

@@thunderflower7998 he radio has the on/off button (upper righ corner) hat you need to hold down for a few seconds to switch the radio on; if there's no reaction, check the battery voltage and charge i if necessary.

[@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.