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2022.06.03 added links to LisaList1 and LisaFAQ to the General Category

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 91 
 on: January 19, 2023, 04:45:37 am 
Started by sigma7 - Last post by stepleton
Thanks for the note. If anyone learns about any memorial details (like where to send things like messages or donations to charity or the like), I would be grateful to hear about it.

 92 
 on: January 19, 2023, 01:28:03 am 
Started by sigma7 - Last post by sigma7
Ray Arachelian died today, January 18, 2023.

Ray was the chief architect and developer of LisaEm, co-founder and main administrator of LisaList2, as well as proud father and all-round good guy.

Quote from: Ray
Raise a glass to me and play this: Amon Amarth - One Thousand Burning Arrows - I know it's not going to be everyone's cup of tea. Just been listening to that song as I'm facing my mortality, and it's soothing. So kinda want that song played at my funeral.

 93 
 on: January 09, 2023, 06:54:45 pm 
Started by fri0701 - Last post by Lisa2
If you want to keep your system original then John Woodall has used OEM cables for sale, eBay item number: 144765847489

 94 
 on: January 08, 2023, 11:50:00 pm 
Started by fri0701 - Last post by sigma7
I think, unfortunately, that the battery damage in this Lisa was so severe that it damaged this connector too, and the pins I'm seeing that are falling out are actually broken off, having been eaten away :(
In that case, you might save the housing portions of the connector in case you need to resort to replacing the damaged contacts with new ones from a similar connector of the same brand (eg. you may be able to get the same style of connector in a different size or without flanges).

As well as checking all of the remaining connectors, also examine the wires connected to them (as corrosion will progress along the wire under the insulation) and trim back or replace as needed.

Good luck!

 95 
 on: January 08, 2023, 09:36:32 pm 
Started by fri0701 - Last post by fri0701
I am referring to that connector, yes. I was noticing problems with my power switch not working, keyboard having issues, etc, and narrowed it down to that connector.

To be more specific, many of the metal pins in that connector have lost their "springiness". Some have fallen completely out of the connector body, and at the end of each of these pins, there's a blue mound of corrosion. Removing the plastic back of the connector (that crimps the ribbon cables in place) revealed more blue corrosion.

I think, unfortunately, that the battery damage in this Lisa was so severe that it damaged this connector too, and the pins I'm seeing that are falling out are actually broken off, having been eaten away :(. In retrospect, this connector being unreliable explains a lot of the intermittent issues I've had with testing various boards, so I'm at least happy to have found the culprit.

For the short term, I have a spare harness from another Lisa body that I can swap in, but eventually, I'd like to find a more permanent replacement. A quick and dirty "solution", of course, would be to use any 60 pin connector that fits and to solder some ribbon cables directly to it, but I'd like to avoid that route. That link you sent seems like it would work, so maybe I'll give that a shot - thanks!

 96 
 on: January 08, 2023, 08:01:38 pm 
Started by fri0701 - Last post by sigma7
The gray connector in the card bay (that connects to the drive, power switch, etc) has many pins that aren't contacting the edge of my motherboard properly. After removing the connector, I noticed several pins are very loose, and some have fallen out. Is this something I'll be able to fix, or is there a replacement that anyone's used in the past they can recommend?
I think you are referring to the 60 contact card-edge connector that is bolted to the chassis and has a ribbon cable on the inside that splits off to the drive, power switch etc. (It is black on the Lisas that are in view to me at the moment, but I think your description narrows it down to that one)

It seems odd that some of the contacts are loose; a picture of those may be helpful in case a repair is straightforward...

At first look, this one is a bit problematic to source. I'd describe it as a 60 contact 0.1" pitch card-edge IDC ribbon cable connector with mounting flanges.

3M made this as part #s 3666-0000 and 3666-0002 but they are no longer available (you may find some NOS somewhere).

Panduit has part number varieties similar to 055-060-455x  where x is F or S for mounting flanges (no flange if blank), but the sites I've checked don't carry it.

This might be a usable part:
"(CPC) 499559-7"  near the bottom of the page at https://www.surplussales.com/ComputerAccess/con_edge.html

Alternate ideas:

Similar parts are available without the mounting flanges. If you can determine the cause of the loose contacts, it may be possible to purchase a similar connector of the same brand and scavenge contacts from it to repair yours.

60 contact card edge connectors with flanges and wire-wrap tails are available. Using one of these with a common 60 contact IDC socket header plugged onto the wire-wrap tails should work ok. The wire-wrap tails have a row spacing of 0.2" so they would need to be bent a bit to fit the header with 0.1" spacing.

The same part without the mounting flanges might be usable by fabricating flanges and attaching them. I think this may be difficult to make strong enough but not impossible.

 97 
 on: January 07, 2023, 06:54:10 pm 
Started by fri0701 - Last post by fri0701
I replaced one of my memory connectors today, and it looks like the replacement part will work well - thanks! I had a broken data line on my motherboard that I was able to patch, and now my memory problems look like they've gone away.

However, I have a new problem. The gray connector in the card bay (that connects to the drive, power switch, etc) has many pins that aren't contacting the edge of my motherboard properly. After removing the connector, I noticed several pins are very loose, and some have fallen out. Is this something I'll be able to fix, or is there a replacement that anyone's used in the past they can recommend?

 98 
 on: January 07, 2023, 02:57:43 pm 
Started by blusnowkitty - Last post by compu_85
Sweet!

 99 
 on: January 07, 2023, 12:19:57 pm 
Started by blusnowkitty - Last post by blusnowkitty
Another bump. Got something very special this morning...

Case is in somewhat rough shape, but electrically and mechanically seems to be fine. I can probably swap parts around with my 3852 to make one nice looking 1080A. Has the manual and two new cartridges as well though I threw in my IBM carts in this picture since I knew they were full of brand new ink from when I was playing with the 3852.

There's one other difference between the 1080A and the 3852 besides the main board and ROM differences - IBM apparently specced up the paper path to have tractor feed sprockets; the 1080A doesn't feature those at all. It'll still print on tractor feed paper but it has a bad tendency to skew.

Thanks Ray.

 100 
 on: January 04, 2023, 10:23:28 am 
Started by blusnowkitty - Last post by blusnowkitty
https://www.ebay.com/itm/314303619003

I doubt anyone's got a spare $6000 laying around, but this 2/10 claims to have XENIX, Open Systems Accounting, and SMC Business BASIC installed. It at least has the Tecmar four-port serial card installed which lends credence to it being a UNIX box.

Has the 1984 Sales Marketing Binder on Bitsavers been updated? There's a bunch of new pages in the PDF now that I don't remember seeing when I first listed things in the spreadsheet. http://www.bitsavers.org/pdf/apple/lisa/marketing/Lisa_Sales_Marketing_Binder_Feb84.pdf

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