Badcaps.net Forum
Go Back   Badcaps Forums > General Topics > General Computer & Tech Discussion
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 05-10-2017, 04:35 PM   #1
goontron
5000!
 
goontron's Avatar
 
Join Date: Dec 2011
City & State: South Greeley, Wyoming
My Country: US
Line Voltage: 13.9kv HT service and some 240v center tap oddity.
I'm a: Professional Tech
Posts: 4,014
Default Modding a Mac Plus 1Mb

I have a Macintosh Plus 1Mb with CPU/Memory problems not caused by the PSU. Does anyone know how i can run this thing as a display only? Like for a raspberry Pi?
__________________
Things I've fixed: anything from semis to crappy Chinese $2 radios, and now an IoT Dildo....

"Dude, this is Wyoming, i hopped on and sent 'er. No fucking around." -- Me

Excuse me while i do something dangerous


You must have a sad, sad boring life if you hate on people harmlessly enjoying life with an animal costume.

Sometimes you need to break shit to fix it.... Thats why my lawnmower doesn't have a deadman switch or engine brake anymore

Tomorrow Is Nearly Yesterday And Everyday Is Stupid!
goontron is offline   Reply With Quote
Old 05-10-2017, 04:44 PM   #2
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 22,849
Default Re: Modding a Mac Plus 1Mb

post a foto of the boards

i think those use 24KHz refresh - so not a very usefull monitor!
stj is offline   Reply With Quote
Old 05-10-2017, 10:12 PM   #3
goontron
5000!
 
goontron's Avatar
 
Join Date: Dec 2011
City & State: South Greeley, Wyoming
My Country: US
Line Voltage: 13.9kv HT service and some 240v center tap oddity.
I'm a: Professional Tech
Posts: 4,014
Default Re: Modding a Mac Plus 1Mb

Here are pictures. The hippy cable is what runs between the logic board and sweep board.

The pins most obvious are the purple one and bottom orange as ground, and top yellow is speaker drive.
Attached Images
File Type: jpg 06012010054.jpg (869.8 KB, 11 views)
File Type: jpg 06012010053.jpg (637.0 KB, 11 views)
File Type: jpg 06012010036.jpg (674.6 KB, 20 views)
File Type: jpg 06012010037.jpg (611.6 KB, 12 views)
File Type: png Untitled1.png (22.8 KB, 16 views)

Last edited by goontron; 05-10-2017 at 11:00 PM..
goontron is offline   Reply With Quote
Old 05-10-2017, 11:52 PM   #4
goontron
5000!
 
goontron's Avatar
 
Join Date: Dec 2011
City & State: South Greeley, Wyoming
My Country: US
Line Voltage: 13.9kv HT service and some 240v center tap oddity.
I'm a: Professional Tech
Posts: 4,014
Default Re: Modding a Mac Plus 1Mb

Blue is 5v. It ties to the CMOS/PRAM battery post through a diode.
goontron is offline   Reply With Quote
Old 05-11-2017, 05:43 AM   #5
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 22,849
Default Re: Modding a Mac Plus 1Mb

foto's of the logic board?
stj is offline   Reply With Quote
Old 05-11-2017, 09:38 AM   #6
goontron
5000!
 
goontron's Avatar
 
Join Date: Dec 2011
City & State: South Greeley, Wyoming
My Country: US
Line Voltage: 13.9kv HT service and some 240v center tap oddity.
I'm a: Professional Tech
Posts: 4,014
Default Re: Modding a Mac Plus 1Mb

Here we go.
Attached Images
File Type: jpg 06012010060.jpg (1.13 MB, 20 views)
File Type: jpg 06012010059.jpg (862.9 KB, 21 views)
File Type: jpg 06012010058.jpg (1.23 MB, 24 views)
File Type: jpg 06012010057.jpg (437.0 KB, 19 views)
goontron is offline   Reply With Quote
Old 05-11-2017, 10:10 AM   #7
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 22,849
Default Re: Modding a Mac Plus 1Mb

try replacing the ram.
or giving it a damned good clean.

also, replace the electrolytics - they appear to be the only smoothing on the thing!!
stj is offline   Reply With Quote
Old 05-19-2017, 09:56 PM   #8
goontron
5000!
 
goontron's Avatar
 
Join Date: Dec 2011
City & State: South Greeley, Wyoming
My Country: US
Line Voltage: 13.9kv HT service and some 240v center tap oddity.
I'm a: Professional Tech
Posts: 4,014
Default Re: Modding a Mac Plus 1Mb

Well, i cleaned it, and tested the caps. No dice. Just going to send it to scrap.
goontron is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums 2003 - 2020
Powered by vBulletin ®
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 01:02 PM.
Did you find this forum helpful?