Apple Lisa assistance - Monitor issue

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Last seen: 1 year 6 months 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,




Last seen: 1 hour 49 min ago
Joined: Mar 13 2012 - 05:12
Posts: 52
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.



Geoff B

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