• Updated 2023-07-12: Hello, Guest! Welcome back, and be sure to check out this follow-up post about our outage a week or so ago.

Powerbook 140 screen contrast black

gijsmans

Active member
Just acquired a PowerBook 140, previous owner was an old lady. Set includes everything including the original bill. Adapter the was failing, opened it and needs recapping, serious leaking. Bought new 7.5v 2a adapter. Boots from original System 7 install floppy. But screen is black, backlight is fine, looks like contrast is max or min. Contrast slider does not have an effect on contrast. Recap or easier fix?

B97F88B1-53B5-44A3-A71C-9BA2967F4F64.jpeg

B5CFC9C6-9E01-4EA6-9855-EB0567625754.jpeg

9AD546C6-EBB7-43B8-92CF-094093391546.jpeg

 
Last edited by a moderator:

bibilit

Well-known member
New caps needed on the back of the LCD, two caps also in the backlight / contrast board

 
Top