Thread: M1438 Pictures
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Old 15 January 2021, 14:53   #18
Retrorepair
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Join Date: May 2020
Location: Rochford
Posts: 25
Quote:
Originally Posted by jbenam View Post
You're welcome!

Whoops, I must have not noticed them last night!

C501 - 3u3 160v
C503 - 1u0 250v
C216 - 4n3 1600v
C500 - .015uF 1kV

Also, attached pics of the underside of the PCB.

EDIT: Please let me know if you need any more pics, as as soon as you are done I am going to close it up and see if I have fixed the missing green channel issue
Sorry mate, we had a baby between my last post and now so my attention has been elsewhere

I have made the modifications which appear to be all that differs between my model and the model found here:

http://ataricomputers.altervista.org...1438S_MOBO.jpg

However, both low and high resolutions seem to be twice as wide as the should be and therefore double up. The vertical size seems fine though.

I'm going to investigate a bit more but without seeing that exact models board and the values of the caps on that model, I don't know that I can complete this project. I'll go over again though to try and rule out any mistakes.
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