PowerBook Maintenance Checklist and advice?

[equant]

I just acquired a 165 and 145B, which inspired me to pull my other 165 out of storage.  Does anyone have a checklist of things that need to be done to these things to keep them happy?  I've pulled the power batteries out of them.  I've read about pram batteries... do these need to be replaced, or can I just remove them?  And then, what about recapping, is it possible/necessary with these powerbooks?

I've noticed that all three PBs have vertical/horizontal artifacts on their screens.  Is this likely due to pram issues, or something else?

Thanks!

 

[OleLila]

The 68000 PB screen capacitors are bad all over the place and if there are any artifacts on the screen its a pretty sure bet that they need to be replaced. Remove or replace  the battery and replace the capacitors on the screen inverter board while you are in there. If the hinges are intact, once you start disassembling the screen, do not attempt to open or close the screen or the hinge mounts can snap. I'm here now looking for a list of capacitor sizes for a couple of PB 68000 models.

 

[desertrout]

Bumping this - I have a 160 and 180 on the bench and was wondering if there is a cap list out there, I can't seem to find one.

 

[desertrout]

In case anyone is looking for this info, these are the electrolytic cap values for PB 160 and 180:

Trackball

C1 - 10uF 16V radial polar through-hole (about 8mm x 4mm, 2.5mm lead space)

Inverter board

C1 - 33uF 10V radial polar through-hole (about 5mm x 6mm, 2.5mm lead space)

C4 - 47uF 16V radial polar through-hole (same as above)

Passive matrix display (PB 160 - the active matrix on the PB 180 has no caps)

9 x 3.3uF 35V polar surface mount (I used size B tantalums, 3.5mm x 2.8mm)

C? (left of the dc/dc inverter, see pic) - 22uF 35V polar surface mount (around 6mm x 6mm, I used an electrolytic smd because of the round space on the white housing it fits into... maybe a tant will fit, I dunno)

C? (right of the dc/dc inverter) - 100uF 6V polar surface mount (same as above - exact voltage seemed hard to find... but 6.3V and 10V are common)

 

[stormy]

FYI another reason you can get lines on the screen is a faulty/worn display cable, these things seem to rot away over the years.