atcomsystems.ca/forum Forums General General Telephone & Systems Information TS22A

Unless you can find it...

larger image for clarification

At some point they did away with the battery because it amounted to planned obsolescence since the battery is really not meant to be replaced. There was a law suit over it that they lost. So the question is what was the progression of the TS22? Mine is obviously the oldest with the OPs newer but yours the newest? If that's the case, why the major redesign of the OPs with yours going back to the old design? Maybe it was easier to eliminate the battery with the old design?

What does that piezo do anyway, I don't remember. Does it beep when in data lockout?

-Hal

Electronic ringerPiezo is the electronic ringer, I believe. Data lockout was just using monitor-mode.

I believe I purchased it between 1994-1996 and prior to that was my TS-21...which I still have. Those things are expensive when you make $12.00 an hour and have to purchase them yourself and cannot write them off at the end of the year. 🤑

Tell me about it.

-Hal

I have the same set that the OP has that Hal posted a picture of. Mine just bit the dust. I have the same little daughter board with the two little batteries, but those aren't the ones that died. There's a CR2045 under that piezo. Mine had tabs spot welded to the battery and no one would make one up for me, and I didn't feel like waiting weeks for some chinese battery that -might- work. So being the ingenious little devil I am, I desoldered a CR2032 cmos battery holder off an old computer motherboard I had laying around, the tabs almost lined up perfectly, and soldered it into the set. Presto. It works again. I just set the piezo back on top of the battery, no glue. its all plastic so I wasn't worried about it shorting out.

Since something is preventing me from posting a picture like I've done a hundred times before, go HERE to see what I did.

Yeah, I was wondering if it was UNDER the piezo. If it's the same as the one I showed in my picture they are readily available from all the electronics supply houses. The big problem with using a battery holder (and that really is the way to go) is that nobody has found one that even came close to the pinout of the original battery. Apparently you have. Good job.

-Hal

Completely different.

-Hal