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Assembling a Lisa

Forums > Vintage Apple > Lisa & Macintosh XL

Adam
Tinkerer
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Joined: Oct 22, 2021
Posts: 38
Likes: 53
Dec 5, 2021 - #1
This week I'm going to put together a Lisa that I've had apart for some time while testing hardware. It should be fun to clean up the parts and get it all together again. I'll post here as I make progress.
Attachments:
2B1D60AB-7503-43A6-B6C7-1C0EF2E506C3.jpeg [View]

Liked by KingDingus,Patrick,adzq88and 5 others

Adam
Tinkerer
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Joined: Oct 22, 2021
Posts: 38
Likes: 53
Dec 6, 2021 - #2
Some of these parts are quite dirty. This Lisa was in a junk pile for a long time. But it seems like it should clean up alright.
Attachments:
8B9945B1-6F45-471A-9ECC-F84F8119F452.jpeg [View]
D7978063-D7A0-4CE4-A0D7-11E4C43EEA8C.jpeg [View]

Adam
Tinkerer
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Joined: Oct 22, 2021
Posts: 38
Likes: 53
Dec 6, 2021 - #3
However, some of the parts are really yellowed, like this front bottom panel. I think I'll need to retrobright this eventually.
Attachments:
7CB3B5E3-3049-4124-B4B8-AFA3E91909F3.jpeg [View]

Adam
Tinkerer
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Joined: Oct 22, 2021
Posts: 38
Likes: 53
Dec 6, 2021 - #4
The bottom pieces have been reattached!
Attachments:
59E56960-6017-40A9-9CA2-AA0011717BBA.jpeg [View]

Adam
Tinkerer
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Joined: Oct 22, 2021
Posts: 38
Likes: 53
Dec 6, 2021 - #5
Lid attached. This one is easy - just two captive screws underneath in the back.
Attachments:
01412861-B044-41F8-A3B6-B963F553626D.jpeg [View]

Adam
Tinkerer
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Joined: Oct 22, 2021
Posts: 38
Likes: 53
Dec 6, 2021 - #6
Oops. I realized that the sides have to go on first. These are a pain, because it's hard to reach the screw holes. I had to use a right-angle screwdriver for one of the screws.
Attachments:
CBD88090-2664-407E-9358-10C627A2CDFD.jpeg [View]

Adam
Tinkerer
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Joined: Oct 22, 2021
Posts: 38
Likes: 53
Dec 6, 2021 - #7
Okay, got the other side on. And the lid is back in place.
Attachments:
77C9EA01-4F6F-4631-A924-18DCAC553096.jpeg [View]

Adam
Tinkerer
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Joined: Oct 22, 2021
Posts: 38
Likes: 53
Dec 6, 2021 - #8
Here's the power supply. There's no need to test it, because someone already did it for me! :D
I've installed it into the Lisa. Unfortunately, one of the knobs is broken on this one. Anyone know a source for these pots?
Attachments:
FC7976F0-B05F-4A96-AA5E-7E5116D0503E.jpeg [View]
83C97BC0-5110-401F-A191-73A64B51EE3E.jpeg [View]

Liked by KingDingus

Adam
Tinkerer
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Joined: Oct 22, 2021
Posts: 38
Likes: 53
Dec 6, 2021 - #9
I've installed the boards (more on those later), and reattached the rather grubby looking back panel.
Attachments:
F9F062C9-CF08-4EB0-88CE-3EDCE5552F39.jpeg [View]
74C64B40-43AF-4756-9D6E-8CA634753A4F.jpeg [View]

Adam
Tinkerer
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Joined: Oct 22, 2021
Posts: 38
Likes: 53
Dec 6, 2021 - #10
I'm going to try turning it on and see what happens. I had to take the lid off (again!) because the vertical hold needed adjusting. But the computer is starting up! (I had to trick the front panel switch to make it start without the bezel in place.)
I have to come back to this later. So stay tuned for more!
Attachments:
0F987197-1B74-4E32-BA82-D53B7E997C61.jpeg [View]

Liked by ried,rjkucia,Elemenohand 3 others

ScutBoy
Administrator
Northfield, MN USA
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Joined: Sep 2, 2021
Posts: 356
Likes: 342
Dec 6, 2021 - #11
That's a very good sign!

Adam
Tinkerer
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Joined: Oct 22, 2021
Posts: 38
Likes: 53
Dec 7, 2021 - #12
I had to stop working on this for now, because the power supply has stopped working. I've got replacement caps on order!
Attachments:
0C7A5EE7-C890-4F8B-8BD8-65C96EB267A0.jpeg [View]

ScutBoy
Administrator
Northfield, MN USA
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Joined: Sep 2, 2021
Posts: 356
Likes: 342
Dec 7, 2021 - #13
Is this the 1.8 or 1.2 power supply? Will be interested to hear how your Bill of Materials matches up; I need to do this work on my Lisa

Purdy
New Tinkerer
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Joined: Oct 28, 2021
Posts: 18
Likes: 20
Dec 9, 2021 - #14
Yes, please share your BOM for caps on a 1.8A Lisa PS. I've got one that's due for a recap.

Adam
Tinkerer
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Joined: Oct 22, 2021
Posts: 38
Likes: 53
Dec 19, 2021 - #15
I'm stuck on the power supply. The pins on the rectifier were shorted so I ordered a replacement. But when I removed it, the pins are no longer shorted. It appears that the transformer on the left has a short? I'm not sure what to do next. Am I screwed here?
Attachments:
75B66562-B35C-4D42-93DC-63D032D3DCEC.jpeg [View]

Markintosh
New Tinkerer
USA
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Joined: Mar 31, 2023
Posts: 59
Likes: 18
Jul 14, 2023 - #16
Keep us posted! Here's a link to Trim Pots:


Apple Lisa Power Supply Video Trim Pots - Work - Replace Your Bad Ones | eBay

Relatively Easy to Install. You must desolder the old one and install(solder) the new one.
www.ebay.com
Attachments:
www.ebay.com [View]

Liked by JDW

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