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There is an Apple extension from 1996 (size: 16kb), which is called 'Trackpad Climate Control' which can be installed: "The extension works only with the PowerBook 190, PB 1400 and PB Duo 2300"

For the year problem "Setdate" will help: http://macintoshgarden.org/apps/setdate

After a few years I took out this beautiful Powerbook again. Of course it didn't work, even with a second power supply. After many resets it booted up, but with video problems. First of all, I replaced the pram battery with a new self-made one. Now it starts every time when I press the reset...

I have similar issues with my only PB 180c now. So the next days/weeks are reserved for these PBs and some more. :-(

Thanks! I hope it's not the screen inside.

BTW: I have 2 of these still working PB 540c with PCMCIA modules Rev. B and Rev. C and both Powerbooks with SCSI2CF adapters inside. It would never come in my mind to demand such excessive prices. As I mentioned in an old thread I found out, that Rev. B module works fine with special CF-cards...

I have a similar problem when I started one of my PB 540c today after 2 years: The upper half of the screen is disturbed by vertical stripes. Any hints please?

The hinge fix is a real great thing! But too much work for me at this time.

At this moment I decided to store it open. It's the best of my 3 PB 1400. It can be used normally.

> as the C and CS cables are NOT > the same and not interchangeable. omg! :-(

I now will store my PBs 1400 in open position forever.

only hinge (cracking) damage on the 1400 PBs. Some cracking on PBs Duo elsewhere (battery front).

> My 1400c had speaker distortion, but a > 68KMLA member said it wasn't the > speaker, but a motherboard fault. I know now, as I bought some PB 1400 speakers.... I had too many PowerBooks before (more than 30), so I was not able to leave them all in open position. I sold half of them 5 years...

Three 1400 PowerBooks. I have several PBs 5x0 too but I stored them vertical, so they are still ok. I always took care of the PRAM batteries and removed or replaced them with new self built ones, but I didn't think about the plastics. :-(

Unfortunately, I made the mistake of stacking all my PBs 1400 on top of each other. I was an idiot. :-(

Thank you. Yes I know about the cracks. :-( Should I grease the hinges in the meantime?

sorry: both originally with 166 MHz.

I have 2 PowerBooks with these 2 problems. The 1400c is much better: G3 card, full RAM and more. The 1400cs has an annoying continuous tone that can only be turned off with the volume control. My question is: Can I attach the cs top part to the c bottom part or are there problems with the...

Thanks to AEChadwick for this great thread! :cool: Some years ago I've written a manual about PowerBook Pram batteries starting with PowerBook 145B, ending with PowerBook G3 Firewire (Pismo). Sorry, it's written in german, but you can translate it with Google. Many pictures included...

Here in Europe Duo 270c are very rare. I imported mine from USA.