I will spare you the technical details…
If you have a PO that does not power on, or one that powers on but resets when you press a button, grab a pair of tweezers and bridge the pads below. If it starts working, solder a wire in place.
I literally just repaired 10 dead POs with this fix.
Best of luck.
Wait…you had 10 dead PO’s!?
Please do not spare us the technical details.
There should be a direct trace from 3V to that pin of the pot.
How did yours get disconnected?
There is a transistor between the battery and the pot. I assume it’s a buffer.
Now I just need a source for replacement displays.
i think maybe thats the LDO voltage regulator?
The 5 pin ICs next to and above the appear to be voltage regulators, but the 3-pn IC is only connected to the one above. It’s possible that it’s for reverse polarity protection.
Here’s a good resource:
ah my mistake then
knew it was either that or the 5 pin
interesting that they use both the 3v and whatever v the voltage regulator is spitting out
woulda thought otherwise
anyway way to go!
Thank you for the tip - managed to fix my PO Office after a couple of years of it being dead.
GOD DAMN I fixed my K.O. THANK YOU!! For a year and a half, it was just chillin’ in the closet.
Side note, if that connection doesn’t work, try one of the other two pins out of that group of three. I had a completely unresponsive PO-33, and when I temporarily connected that battery pin with the right pin (just for a second), it zapped it back to life somehow. I tried the left one like you have here, but it kept shutting it off. The right one did the trick (and I didn’t even need to solder)!
