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Macintosh Portable won't boot after taxing 12V power

Posted by: campbellashe on 2026-08-02 17:04:40
Last reply: Froggy814 on 2026-08-06 07:54:37
Replies: 8
Macintosh Portable Expansion Cards

Posted by: Froggy814 on 2026-08-05 07:02:18
Last reply: finkmac on 2026-08-05 07:16:45
Replies: 1
PMGR replacement compatibilities

Posted by: MacPlus2300 on 2026-07-29 13:15:07
Last reply: MacPlus2300 on 2026-08-01 19:10:07
Replies: 3
LCD Replacement for the Macintosh Portable

Posted by: Froggy814 on 2026-05-31 11:13:27
Last reply: campbellashe on 2026-08-01 17:03:06
Replies: 73
Mac Portable Backlight Issue

Posted by: oldpcguy on 2023-01-28 11:48:24
Last reply: Froggy814 on 2026-07-30 09:30:32
Replies: 14
Why did they do less pins for the SCSI drive on the Portable?

Posted by: Froggy814 on 2026-07-29 09:41:20
Last reply: finkmac on 2026-07-29 10:01:49
Replies: 2
Need capture and signal help for homebrew accelerator project

Posted by: MacPlus2300 on 2026-07-27 17:13:47
Last reply: Froggy814 on 2026-07-28 19:06:35
Replies: 11
Help debugging voltage sag(?) in PB 180c display

Posted by: shelbel on 2026-07-28 00:13:03
Last reply: shelbel on 2026-07-28 10:33:52
Replies: 2
M5126 Little Signs Of Life, Help needed

Posted by: MacPlus2300 on 2026-07-23 07:57:38
Last reply: MacPlus2300 on 2026-07-27 13:39:03
Replies: 15
How to: upgrade a 520/540 to a 550c ROM

Posted by: croissantking on 2026-06-27 17:31:17
Last reply: croissantking on 2026-07-26 15:14:06
Replies: 56
Blackbird Prototype AKA PowerBook YYY

Posted by: mcdermd on 2013-05-28 22:23:10
Last reply: croissantking on 2026-07-22 11:32:37
Replies: 10
Powerbook step-by-step troubleshooting

Posted by: madsox on 2026-07-18 06:56:57
Last reply: Shaddam IV on 2026-07-21 12:39:25
Replies: 7
Anyone has schematics for 270c and 520?

Posted by: TheBlackRabbit on 2024-10-05 01:15:26
Last reply: croissantking on 2026-07-17 16:24:59
Replies: 27
PowerBook 170 & 180 Part Compatibility

Posted by: rnb on 2026-03-11 07:05:31
Last reply: rnb on 2026-07-14 09:17:11
Replies: 7
PB180 ZuluSCSI disk sleep issues?

Posted by: flimshaw on 2023-07-07 19:02:30
Last reply: Froggy814 on 2026-07-14 08:57:23
Replies: 15
Portable draining battery

Posted by: MindWalker on 2026-07-12 07:35:57
Last reply: finkmac on 2026-07-13 11:59:33
Replies: 6
PowerBook 165c Screen diagnosis

Posted by: Campus90SE on 2026-07-06 10:38:53
Last reply: Byrd on 2026-07-10 23:19:44
Replies: 7
PowerBook 500 series logic board revisions. How many differences ?

Posted by: demik on 2025-08-21 04:32:20
Last reply: Froggy814 on 2026-07-10 07:34:57
Replies: 12
Powerbook 160 SCSI cable and trackball

Posted by: Froggy814 on 2026-07-07 15:23:09
Last reply: Froggy814 on 2026-07-09 07:11:29
Replies: 2
Duo 2300c fully working but... who can do recapping with tantalum caps in the UK ?

Posted by: francois_uk on 2026-07-07 06:31:48
Last reply: francois_uk on 2026-07-07 17:23:51
Replies: 12
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