11-03-2022, 07:15 AM
This HP25 is behaving poorly - it's been in a box for 7 years and transported around the world US-> UK -> Australia. The 4 and 5 keys behave erratically, sometimes blinking but not registering a 4 or 5. Tapping 123456789 delivers 123656789 in fix2 mode, in fix8 mode the display registers 123666789 ! This was with new batteries. I've never used a charger.
The logic board has very minor oxidation around the battery terminal, but this doesn't seem to be anywhere else - I've cleaned it with the usual vinegar/ alcohol. Tracks that are visible look ok and none of the pads look like they have dry solder joints.
I've not touched the keypad (nor do I really want to if possible). Any suggestions appreciated for the next stage - worst case I'll put it to the side and wait for the Panamatik kit to become available again.
Thanks in advance Mark
The logic board has very minor oxidation around the battery terminal, but this doesn't seem to be anywhere else - I've cleaned it with the usual vinegar/ alcohol. Tracks that are visible look ok and none of the pads look like they have dry solder joints.
I've not touched the keypad (nor do I really want to if possible). Any suggestions appreciated for the next stage - worst case I'll put it to the side and wait for the Panamatik kit to become available again.
Thanks in advance Mark