Bolles finds

[JRL]

Nice grab! I have a TPD monitor/card that has the v4.4 ROMs (System 7 compatible ones) and they're faulty, so I may have to try yours.

 

[LaPorta]

It looks like is has never been used. Let's see if I can get a picture out of this without the screen that came with it.

This will be neat to see. What sort of screen is that supposed to drive, do you know?

 

[JRL]

This will be neat to see. What sort of screen is that supposed to drive, do you know?

It's for the full size (original) Radius Two Page Display:

 

[Bolle]

Picked up one of those beauties today:

All the plastics are intact, it has a battery installed that has already been cut open but looks like it's still holding the original cells, no obvious leakage from either the main battery or the 9V block.

It looks more yellowed in the pictures than it actually is. Sitting next to my other Macs it really shines in bright white compared to most of them.

It came without a charger and no HDD installed.

I will have to free some time to disassemble the whole thing, clean all the plastic parts and inspect the logicboard. It will obviously need new caps if it hasn't been recapped yet.

My plan is to install a plug on the back at the little expansion cover, connect that to the main battery plug on the logicboard and power it that way from a lab powersupply to get around having to recell the battery.

Not that anyone's actually carrying around anyways :tongue:

Making one of those HDD cables is on the list as well as maybe getting one of the RAM cards that are going to be made. (maybe, because the available video card clone also looks tempting but that's likely going to conflict with more than 4MB RAM)

 

[CC_333]

Nice find!

However:

My plan is to install a plug on the back at the little expansion cover, connect that to the main battery plug on the logicboard and power it that way from a lab powersupply to get around having to recell the battery.

I'm sure you know this, but be very careful!  I've read numerous times that the Portable really doesn't like being run without a battery, and some components are prone to frying themselves if any attempt is made to do so.

c

 

[pax]

Nice catch! I’ve debated looking for one myself. 

 

[Bolle]

I've read numerous times that the Portable really doesn't like being run without a battery, and some components are prone to frying themselves if any attempt is made to do so.

You can run a Portable that way when it’s done the right way.

My plan was to wire my plug on the back right to the power connector on the logicboard.

That will replace all the battery switch wiring that can fail and will make bad things happen.

So it’s actually safer to do it that way if you ask me.

 

[CC_333]

OK, that's good to know.  I didn't know there was a right way :-I

Carry on, then

c

 

[Bolle]

I will document what I am doing with this machine along the way. And gather information that others already documented elsewhere already, I know techknight somewhere gave an excellent explanation on the workings of the power circuit and what happens when the machine is powered in one of the countless wrong ways.

But thanks for the heads up nevertheless. Those machines are finicky beasts.

 

[Trash80toHP_Mini]

Congrats on joining the crooked spine club. I've got a head start on digging up that information. There are 14 pages of hits for "Portable" and I've got bookmarks for anything relevant done and sorted for the first 12 pages. I'll soon be setting up a Luggable Links Project topic in hacks, as those were the ones I was looking specifically to find. DEGUBBING the temperamental things belongs in there too, getting one of min up and running is now a priority.