I repaired a HP9100A calculator but still need some help...

[isanchez]

IMPRESSIVE!!
Congratulations!!!
This makes me happy, because I find my HP911B is in better state than yours was!!! And mine is in a poor state! ;-D

If you ask me about mine: I would say, I don't know how and where to start...
- It does not display anything. But the CRT shows a light point and I have to say that after repeating many turns on tries, it showed numbers...not now.
- It is supposed that it is matter of transistors...but how do you check them?...I heard something using a cold spray?, but not sure.

Maybe we can keep the contact directly through the email sanreig@gmail.com . I don't want to bore the rest of the forum users.

Thanks and kind regards!!!
Again Congratulations...this experience gives me hope!

Ignacio