Apple Lisa assistance - Monitor issue

2 posts / 0 new
Last post
Offline
Last seen: 1 month 3 weeks ago
Joined: Jun 3 2016 - 08:20
Posts: 2
Apple Lisa assistance - Monitor issue

Dear everyone,

 

Nice to see this forum is still buzzing.

 

Since obtaining my Lisa, it has been a bit of a journey to get it all working. 

 

Currently there is an issue that is leaving us unsure of what to do when powering on the machine (see photo below)

 

- all the electolytics have been replaced on the analog board and no success in fixing this issue.

- the TDA 1170 has been replaced which caused a horizontal line

 

Does anyone have any thoughts or further suggestions?Regards,

 

 

 

ggb
Offline
Last seen: 8 hours 39 min ago
Joined: Mar 13 2012 - 05:12
Posts: 39
Lisa Monitor issue

Have you checked the supply voltages on the video board, 5V, 12V, 28V.

It might be worth checking the pots on the video board as well.

 

Regards

Geoff B

Log in or register to post comments