So apparently in 1993, Avon (the MLM (not that MLM (or that kind either))) commissioned a Soft Foam Telephone.
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@foone Can you rebuild it? 🫣
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So the way this thing is broken is odd: You plug it in, and you can turn it on (yeah this landline has an on/off switch, which is itself weird) and the LED comes on, but that's it. You CAN hear it clicking when you pulse-dial, but nothing otherwise
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This thing was definitely hand-soldered. With one possible exception they look fine, though.
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@eaterofsnacks I'm hoping so!
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Nope, there's no bridge here. I checked.
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R [email protected] shared this topic
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@foone on/off for the ringer, probably
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Annoyingly there's two version of the datasheets: a 1-pager that just gives the specs, and a 5-page one that talks about circuits and such.
the 5-page one is only available in chinese and when I attempted to translate it, google just gave me punctuation.
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no really. it only included the punctuation.
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Testing in circuit, I'm seeing 2.1v across VSS/VDD on that chip.
The nominal voltage seems to be 2.5v? so that might be a problem -
@foone "significant white space and punctuation" kind of language
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hmm. no, if this translated electrical characteristics table is at all correct, it should be fine down to 2v. So we're close, but not dangerously low.
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this thing has a bunch of little caps and diodes and transistors. I've visually inspected it but I don't see any issues with any of them.
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Infoseepage #StopGazaGenocidereplied to Foone🏳️⚧️ last edited by
@foone This is like one of those old school restricted writing challenges! Write a novel without using the letter e! Seems like the perfect thing for a LLM, except they can't count letters and will tell you that the color of the sky is fish.
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I'm getting the expected -51V on the input, so there's no problem with the cord or the PBX powering this
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and the fuse is fine, I did test that.
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Here's the translated(ish) schematic from the HM9102D datasheet.
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I'm gonna assume this device is basically this design with with minimal changes.
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@foone What a pun!
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I'm suspicious of this goop. It looks like they hotglued the caps down, so... why would there be brown goop? Maybe these caps leaked out the bottom and it pooled under them.
