Color Classic analog board re-design, needs community feedback.

jonschultz

New Tinkerer
May 16, 2026
5
10
3
USA
github.com
Progress report:

I have started to move parts from one of the original boards, since not all parts are in yet, and it seems a safer bet as to start with fresh parts (except for all electrolytic capacitors)

not done yet, but work is in progress!

once it's populated i will run a test to see if the power supplies work, before trying it out inside the color classic. ill keep you all posted!
The board looks great, awesome work!
 
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ArjenCNX

Tinkerer
Oct 20, 2025
87
114
33
IMG_0800.JPG
 

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techknight

Moderator
Staff member
Dec 2, 2021
122
124
43
North Carolina
Well, got it all together, and on first power up the 5/12/-5 PSU side doesnt work, ill have to de-bug it to see what is holding it up. ill keep you posted on the progress

The amount of times I can count where I had issues with that PSU id be rich. I can say that I am not surprised, hopefully you iron it out.

Make sure standby voltage is making it to the TDA4605 via the opto circuit from the switchon stage.