A pleasure to read from your culture!
I finally decided to repair both cards, changing the failure caps.
The leakage was important, so I used a lot of cotton sticks with IPA to clean it, but the corrosion seems to be letal.
I have changed all the caps, but after insert the PZ03 and power on, the display doesn’t start and a relay sound starts and stop run. Inmediatelly, I powered off the device. So it seems the card is in shortcircuit…
Is it possible to be damaged the caps leakage with IPA dilution? I don’t have a ultrasound clean cabinet but I see it is totally needed…
I attached four pictures to share if anybody see any mistake on card work.
Any help will be appreciated!
Best regards from Barcelona and sorry for my english!