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View topic - SMS 1 RGB Bypass - FrankStrasser PCB - assistance

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  • Joined: 11 Jul 2021
  • Posts: 9
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SMS 1 RGB Bypass - FrankStrasser PCB - assistance
Post Posted: Sun Jul 11, 2021 5:09 am
Hi!
I bought this PCB off someone on Ebay and I am looking to RGB bypass my SMS I.

I have done my research on things and would love a peer review to ensure I dont go mess things up.

Can you take a look at my pic and see if I have things mapped to the right areas? (So little documentation on this mod so I am worried I have something incorrect)

Questions:
1) CS or CVBS (This looks like a jumper is it for CS=Composite Sync and CVBS = Composite video?)

2) The FM, PSG and JP/FM solder pads:
A. FM does it solder to the Tim Worthington SMSFM board?
B. Does the JP/FM solder to the back of the Tim Worthington
SMSFM Board as well?
C. Uhm... where do I pull PSG from? An pinout or documentation you
know of?


Thanks so much!
Anything you could review/let me know I did wrong would be helpful before I attempt this

Plus answering those questions would be a lifesaver!
Appreciate it.
Am I right - its a jumper.png (584.88 KB)
Is it a jumper between Csync and Composite Sync?
Am I right - its a jumper.png
FrankStrasser PCB.png (30.48 KB)
PCB pinouts
FrankStrasser PCB.png
Back of SMSFM.png (135.32 KB)
Back of SMSFM
Back of SMSFM.png
My first draft of where to map things.png (2.26 MB)
Draft of where to put things
My first draft of where to map things.png

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  • Joined: 11 Jul 2021
  • Posts: 9
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Post Posted: Tue Jul 13, 2021 3:52 am
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