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 Post subject: Re: RGB horizontal shift control?
PostPosted: Sat Nov 21, 2020 9:59 pm 



Joined: 21 Sep 2020
Posts: 11
hellbelly wrote:


SFC 1 chip using 7474 bypass and restored csync.
Regular SFC using native csync.
Saturn using sync on luma cable.
N64 with 7374 RGB mod and csync.

Not sure I’ve got anything with a sync stripper built in to try.

Is there any consoles in particular that I could try?


Pete


Thanks for the info hellbelly :) . If you have a dreamcast, genesis or neo geo cd to try that's be sweet, no worries if you don't.

Also, I see there's a sort of input for a power supply. Do you have one hooked up, and if so what voltage/mah is it? Aliexpress doesn't seem to offer much info atm....

This aliexpress shifter is looking like go to shifter so far. I also have jochens shifter preordered too, will see how that one turns out when I receive it.
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 Post subject: Re: RGB horizontal shift control?
PostPosted: Sun Nov 22, 2020 12:22 am 


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Joined: 05 Nov 2019
Posts: 530
Location: Massachusetts, USA
Does the Aliexpress one have some sorta sync stripper (assuming LM1881 if anything), btw? Noticed it says something about sync on it...
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 Post subject: Re: RGB horizontal shift control?
PostPosted: Sun Nov 22, 2020 6:36 pm 



Joined: 20 Sep 2008
Posts: 88
Location: UK
Hi

Yep, the circuit has a LM1881 in it, as does the circuit by Tim that I suspect this is based on - http://members.optushome.com.au/eviltim/other/other.htm

It needs 9-12V DC, doesn't say what mah - I'm using 500 and it's working fine.

Just tried JPN DC and Mega Drive, both using csync cables and no problems adjusting the image position - to the extremes that it allows them to be adjusted.

Unfortunately I can't find my cheapo scope. I'll keep looking.

Oooh, I didn't know Arcadeforge had one too.
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 Post subject: Re: RGB horizontal shift control?
PostPosted: Tue Nov 24, 2020 1:07 am 


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Joined: 27 Apr 2013
Posts: 1223
hellbelly wrote:
It needs 9-12V DC, doesn't say what mah - I'm using 500 and it's working fine.

Cheers for that, I’ll get a 500 as well. Just picked up the Arcadeforge one as well for a comparison. I despair at my OCD need to try every option with this retro gaming habit :/


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