Lisa Troubleshooting and Repair

I/O board with DELIBERATELY cut tracks!!!

Started by Exteban

Replies: 3
Views: 48,545

January 18, 2024, 04:47:22 PM
by sigma7

Profile sticking at Track 0

Started by blusnowkitty

Replies: 4
Views: 65,349

October 20, 2021, 05:39:55 PM
by compu_85

No startup - Lisa Power Supply Unit?

Started by Ona Beach

Replies: 4
Views: 52,984

April 24, 2024, 10:43:24 PM
by AlexTheCat123

Any tips for lubricating a Lisa keyboard?

Started by Huxley

Replies: 4
Views: 8,148

February 12, 2026, 02:24:03 PM
by stepleton

Misc Lisa peripherals repairs

Started by pintoguy

Replies: 4
Views: 55,598

July 14, 2022, 05:31:54 PM
by pintoguy

CRT Ground wire fragility

Started by Andrew

Replies: 5
Views: 53,756

December 30, 2023, 06:10:10 PM
by Andrew

Sun disk controller schematic

Started by Al Kossow

Replies: 5
Views: 56,627

April 30, 2023, 08:35:03 PM
by sigma7

System Error 10738

Started by sigma7

Replies: 5
Views: 68,577

July 21, 2025, 12:23:50 PM
by AlexTheCat123

Sun Remarketing Lisa Questions

Started by ried

Replies: 5
Views: 55,673

June 13, 2023, 12:51:49 PM
by pintoguy

Lisa cursor blinks rapidly, each keystroke prints multipe symbols on screen, why

Started by TorZidan

Replies: 5
Views: 60,835

October 27, 2024, 12:28:48 AM
by sigma7

DataPower 1.8A PSUs: SG3524 regulator IC failing

Started by stepleton

Replies: 5
Views: 53,209

November 02, 2023, 05:53:38 PM
by nekonoko

Can you operate a Lisa without an I/O board?

Started by stepleton

Replies: 5
Views: 51,074

March 26, 2023, 11:21:27 AM
by ried

Lisa 1 (2/5) Parallel port interfering with Mouse tracking?

Started by ried

Replies: 5
Views: 56,063

November 12, 2024, 11:49:30 AM
by ried

Mac TCP on OS 7.1 not working

Started by bmwcyclist

Replies: 5
Views: 75,437

September 30, 2025, 12:35:13 PM
by bmwcyclist

Advice for removing the connector on the back of the CRT without breaking it.

Started by rayarachelian

Replies: 5
Views: 76,275

May 26, 2020, 12:00:46 PM
by compu_85

Asante' EN/SC and MacWorks+II, Sun SCSI, address error

Started by bmwcyclist

Replies: 5
Views: 62,719

October 17, 2025, 01:41:13 PM
by sigma7

Sun SCSI Card Issues

Started by AlexTheCat123

Replies: 5
Views: 69,571

March 17, 2022, 04:58:02 PM
by Lisa2

Twiggy froggy foam replacement

Started by ried

Replies: 5
Views: 6,802

January 14, 2026, 03:59:01 AM
by stepleton

Lisa 2/10 230V PSU jumper settings

Started by Insanely Digital

Replies: 5
Views: 53,515

January 28, 2024, 06:01:39 AM
by Insanely Digital

How to reach the CPU card for testing?

Started by fri0701

Replies: 6
Views: 56,724

December 29, 2023, 12:13:39 PM
by AlexTheCat123