PowerBook G3 Lombard power problems

[ikethederg]

I recently acquired this PowerBook G3 Lombard 333mhz for $50 with an iBook g3 800mhz.
The Lombard has no response when powered on besides a repeating buzz from the power board under the track pad.
I have removed every modular component and inspected the motherboard for corrosion and have removed the PRAM.
Here's the MP3 recording of the sound

power board.mp3

drive.google.com

 

[Nixontheknight]

I recently acquired this PowerBook G3 Lombard 333mhz for $50 with an iBook g3 800mhz.
The Lombard has no response when powered on besides a repeating buzz from the power board under the track pad.
I have removed every modular component and inspected the motherboard for corrosion and have removed the PRAM.
Here's the MP3 recording of the sound

power board.mp3

drive.google.com

View attachment 53566

I know this might not help, but try checking out the logic board for shorts

 

[ikethederg]

I know this might not help, but try checking out the logic board for shorts

I do not have anything to check it with, but there are no burn marks, and the PMU gets warm as well

 

[ikethederg]

I may end up throwing this laptop away
It's in poor shape (top lid, bezel and hinges are busted beyond repair)

 

[MacUp72]

strange buzzing noise..when you reassamble it completely does it change? are there parts missing? power adapter ok?

 

[joshc]

Try with a different power adapter.

 

[MacUp72]

when I lacked one of those older power adapters I just modded a newer G4 one, I bent the outer metal ring some mm and with some wiggling my 1400 started up, every time..temporarily this works for testing.

 

[ikethederg]

Would a white Apple charger still work (the ones that came with the ibook g4)? And would snipping the metal work? The center pin i

 

[3lectr1cPPC]

If you can’t get it working, don’t throw it out. Someone will need a keyboard or other part that’s ok, like the LCD panel itself. Throw it up on eBay or the forum trading post for cheap, that way the useful parts get saved.

 

[ikethederg]

If you can’t get it working, don’t throw it out. Someone will need a keyboard or other part that’s ok, like the LCD panel itself. Throw it up on eBay or the forum trading post for cheap, that way the useful parts get saved.

I've tested the RAM and Hard Drive and they work

 

[3lectr1cPPC]

Yeah those parts too. Less value then the screen or keyboard, but those parts are definitely useful too.

 

[ikethederg]

Yeah those parts too. Less value then the screen or keyboard, but those parts are definitely useful too.

I don't know if anything else works, that's the problem.

 

[s_pupp]

There is definitely a market for broken PowerBooks. I just bought a broken Lombard myself for the parts.

 

[3lectr1cPPC]

I don't know if anything else works, that's the problem.

You can be pretty sure that the keyboard is ok, not positive, but pretty sure. Same goes for the LCD if it isn’t obviously cracked. I wouldn’t part it out and sell those parts separate, but you can sell the whole unit for parts and get some money back on it.

 

[ikethederg]

when I lacked one of those older power adapters I just modded a newer G4 one, I bent the outer metal ring some mm and with some wiggling my 1400 started up, every time..temporarily this works for testing.

View attachment 53656

The pin seems too small, and I can't get it to fit even with more bend than that.

 

[MacUp72]

yeah, the inside pin is thinner than from the older G3 adapters, you have to wiggle it a bit around in the DC jack, eventually it starts..
this is a temporary testing solution of course if you dont have any other power adapter at hand.

 

[ikethederg]

yeah, the inside pin is thinner than from the older G3 adapters, you have to wiggle it a bit around in the DC jack, eventually it starts..
this is a temporary testing solution of course if you dont have any other power adapter at hand.

does it need the outer metal rim? since there's a center ground on the inside pin.

 

[treellama]

This is what I use for the clamshells, along with a generic 24V supply: http://www.bixnet.com/cntc11.html

 

[s_pupp]

This is what I use for the clamshells, along with a generic 24V supply: http://www.bixnet.com/cntc11.html

I just bought one of those myself.