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View topic - Can I modify my SMS to output 60Hz signal?
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 Can I modify my SMS to output 60Hz signal?
 Posted: Sun Mar 18, 2001 12:30 pm
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...if so, then can someone please tell me how?
Cheerz ~unfnknblvbl |
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Posted: Sun Mar 18, 2001 1:10 pm
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Yes, certainly - see Mark Knibbs's document: SMS 50/60Hz Modification Guide It gives details for both the SMS 1 and SMS 2. Mike |
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Also note...
Posted: Sun Mar 18, 2001 1:14 pm
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The modification does work perfectly on a Master System II (ignore the part about the details being preliminary). Mike |
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eww... SMS II mod looks icky to do :-( *nt*
Posted: Sun Mar 18, 2001 2:21 pm
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It's not too bad (pic)
Posted: Sun Mar 18, 2001 2:55 pm
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It actually ain't too bad - you can cut the pin near the base if you're not too confident about desoldering it.
Here's a (not very good) photo of my SMS 2 showing the 50/60Hz mod and other stuff: 
Key: 1 SCART A/V cable 2 RGB mod 3 BIOS switch (US/Japanese) 4 50/60Hz switch 5 Language switch (English/Japanese) 6 dual BIOS EPROM (with both US and Japanese versions) 7 Language switch connected between pin 23 of 315-5237 and Ground 8 Reset button connected between pin 33 of 315-5237 and Ground 9 50/60Hz switch connected between pin 57 of 315-5246 and Ground/+5v 10 Reset button |
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Woah... what's #11? *nt*
Posted: Mon Mar 19, 2001 11:42 am
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11 and 12 are Ground and +5 volt wires, respectively. *nt*
Posted: Mon Mar 19, 2001 12:41 pm
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HTH |
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