Best C-Sync Mod on PC Engine Duo-R
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jamisonia
- Posts: 80
- Joined: Thu Jan 23, 2014 3:57 pm
Best C-Sync Mod on PC Engine Duo-R
I currently have my PC Engine Duo-R RGB modded using the THS amp, but I tied composite video for the c-sync. I'd like to go back and redo it to include c-sync instead. I'm wondering what the best mod for adding c-sync is?
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kamiboy
- Posts: 2000
- Joined: Sat Sep 04, 2010 4:40 pm
- Location: Denmark
Re: Best C-Sync Mod on PC Engine Duo-R
Grab sync from the HU GPU chip and boost using the transistor amp circuit available online. Though boosting is optional depending on your display.
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jamisonia
- Posts: 80
- Joined: Thu Jan 23, 2014 3:57 pm
Re: Best C-Sync Mod on PC Engine Duo-R
Double post
Last edited by jamisonia on Thu Sep 24, 2015 2:27 pm, edited 1 time in total.
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jamisonia
- Posts: 80
- Joined: Thu Jan 23, 2014 3:57 pm
Re: Best C-Sync Mod on PC Engine Duo-R
I'm using the XRGB Mini, I'm just wanting to get the cleanest sync possible and do the mod "right" or as best I can.
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RGB32E
- Posts: 1400
- Joined: Thu Nov 05, 2009 12:50 am
Re: Best C-Sync Mod on PC Engine Duo-R
Contact Tim Worthington and request an order of his AV-DRIVER. It has a CSYNC buffer specifically designed for the CSYNC output from the Hu6260, and proper RGB buffering for the RGB output from the Hu6260. The RGB output from a THS 6db amp like the one you're using outputs too high of a video signal. The AV-DRIVER addresses this issue with solder jumpers for setting the correct level of amplification and provides AC-biased input operation so that you don't crush darker colors due to the high DC offset from the Hu6260 on the RGB lines.
http://shmups.system11.org/viewtopic.ph ... r#p1069493
http://www.etim.net.au/
http://shmups.system11.org/viewtopic.ph ... r#p1069493
http://www.etim.net.au/
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ksdominant
- Posts: 7
- Joined: Wed Oct 14, 2015 10:04 am
Re: Best C-Sync Mod on PC Engine Duo-R
Awesome,
Thanks RGB32E I've contacted Tim via his website.
Thanks again.
Thanks RGB32E I've contacted Tim via his website.
Thanks again.