I have an old uLCD-32PT with almost no usage, today I decided to power it on and it doesn't work at all, the screen stays black, no backlight. I have 5.2V between Vin and GND, 4.8V after D1 and 3.3V in the regulator. That base of Q1 has no voltage so the PICASO processor is not enabling the backlight I think, is it dead? I can't load PmmC or any program to it, PmmC loader says "Unexpected response from display:- 0". Any suggestion?