Service Manual for SPICE series? (Dead 34C) (Repaired)

[Waon Shinyoe]

Jose, thanks for your advice! Mine is a solderless model for European market (decimal point shows up as "," . There is also an "*" before the serial number.)

Update: Opened it, found the PRGM/RUN switch was broken (the metal part). Replaced it with a switch from a HP-33E. Everything works perfectly now, except the second to the last digit. Is it favourable to put the LED component in vinegar?

I'm wondering if I can make a replacement switch by myself. Or I will simply solder the 33E to keep it in ON mode when batteries are inserted.