- May 31, 2019
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- AGName
- Seroczynski
- AG Join Date
- Jun 30, 2016
I've been trying to remove the extreme jailbar effect from my SEGA Mega Drive model 1 (PAL, region modded with a manual switch) by installing a RGB Bypass from Voultar, purchased from VGP. I've ran into a bit of trouble and asked the local forum for advise, but that only got me so far due to a lack of activity. I'm hoping someone here could point me into the right direction, seeing as I've already picked up so much from AG ;-)
The problem I'm having is that my OSSC can't get a signal from my Mega Drive after installing the RGB Bypass. I'm using a new Packapunch RGB cable from RGC (I also have a pre-Packapunch cable available). Whenever I plug my Mega Drive directly into my Panasonic plasma TV, I get a vertically scrolling screen (bottom to top). From my limited RGB/Sync knowledge, this means something is wrong with my CSYNC signal. However, I did what was asked from me during the installation of the RGB Bypass, and I'm not smart enough to figure this out myself.
Here's some pictures of my work on the Mega Drive:
My original help thread can be found on the VGP forum.
The problem I'm having is that my OSSC can't get a signal from my Mega Drive after installing the RGB Bypass. I'm using a new Packapunch RGB cable from RGC (I also have a pre-Packapunch cable available). Whenever I plug my Mega Drive directly into my Panasonic plasma TV, I get a vertically scrolling screen (bottom to top). From my limited RGB/Sync knowledge, this means something is wrong with my CSYNC signal. However, I did what was asked from me during the installation of the RGB Bypass, and I'm not smart enough to figure this out myself.
Here's some pictures of my work on the Mega Drive:
Here are the R, G, B and Sync points I'm using. It's not entirely clear in this image, but the Sync trace has been cut at the right side of my solder joint.
Here are some cuts to the R, G and B signals. You can disregard the 'C103' and 'CSYNC' labels.
Installation of the RGB Bypass.
Here are some cuts to the R, G and B signals. You can disregard the 'C103' and 'CSYNC' labels.
Installation of the RGB Bypass.
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