Editing Psion Organiser Capacitor Replacement Guide (section)

== Post-recap verification ==

# Fit a fresh PP3 — ideally via a bench supply set to 9 V with the current limit at about 100 mA first, so a mistake shows up as a limit rather than as smoke.
# Confirm the '''off-state current is back in the tens of microamps'''.
# Switch on and check the display appears and that the '''thumbwheel gives a full contrast range'''.
# '''Set the clock, switch off, remove the battery for twenty seconds, refit it''' — the time should survive.
# '''Test SAVE and FIND on both slots''' with a known-good pak. Writing is the test that exercises the programming voltage pump.
# Leave it switched off for a week and check the clock is still right and the battery has not drained.

If a function that worked before the recap has stopped working, '''check the polarity of every part you replaced''' before looking anywhere else.