- Joined
- Feb 27, 2004
- Posts
- 3,226
Hello,
I know this is not neo-related, but I think it was good to share.
Spent some time modding my coregrafx, in order to get RGB/Stereo output.
Parts needed are an 8 pin DIN connector, and an optional RGB ampli circuit (I bought both on Otakustore along some middlegear fro CDRom2…AFAIK it is the only place where you can find it).
There are already a couple of guides around, but not really specific for Coregrafx and/or IMO not 100% clear on how to recycle the DIn connector base, in order to avoid to drill the PCB (but let's say it, in most of those guides, pictures are not exactly great...the internet needs more pictures ya know..this is the main reason I posted).
So, let's start:
after dismount the unit, you can accesss the main PCB, where the AV connector is:
Quick&clean desoldering, very important in order to reuse the connector:
Now, the nice trick explained on the guides, remove the base from the connector (clips)
the parts are perfectly interchangeable, but the 8 pin DIN new connector has front pins slightly distant from each other (note, the three RGB extra pin legs of the new connector, has been cuted already, so they won't interfere with the positioning, cables will be soldered directly)
so let's attach the original connector base to the 8 pin DIN one, so the front original front pins will fit perfectly, holding still the connector (this pic maybe is showing better the result):
Tap RGB from the last pins of the EXT bus
(some hot glue to keep them aligned is nice)
time to flip the cables on the upper side of the PCB, optionally putting an inline amplifier.
the usual placement for the circuit
Following the guides, I picked +5v and Ground directly from the 7805 regulator
Final result
the connector is indeed identical to the orginal, so no ugly holes etc..
Picture quality is awesome,colors are brilliant and no sign of brightness bars/blur even on dark images.
..that's it, hope this could be helpful to someone attempting the mod as well (^_^)
…now next task, troubleshoot the CDRom2…already changed the middlegear, but even if it is booting the game, it is not able to get all the tracks, so it freezes after searching for a while…seems improving if left on for some minute, so maybe it is "just" a recap…any hint is welcome!
Massi
I know this is not neo-related, but I think it was good to share.
Spent some time modding my coregrafx, in order to get RGB/Stereo output.
Parts needed are an 8 pin DIN connector, and an optional RGB ampli circuit (I bought both on Otakustore along some middlegear fro CDRom2…AFAIK it is the only place where you can find it).
There are already a couple of guides around, but not really specific for Coregrafx and/or IMO not 100% clear on how to recycle the DIn connector base, in order to avoid to drill the PCB (but let's say it, in most of those guides, pictures are not exactly great...the internet needs more pictures ya know..this is the main reason I posted).
So, let's start:
after dismount the unit, you can accesss the main PCB, where the AV connector is:
Quick&clean desoldering, very important in order to reuse the connector:
Now, the nice trick explained on the guides, remove the base from the connector (clips)
the parts are perfectly interchangeable, but the 8 pin DIN new connector has front pins slightly distant from each other (note, the three RGB extra pin legs of the new connector, has been cuted already, so they won't interfere with the positioning, cables will be soldered directly)
so let's attach the original connector base to the 8 pin DIN one, so the front original front pins will fit perfectly, holding still the connector (this pic maybe is showing better the result):
Tap RGB from the last pins of the EXT bus
(some hot glue to keep them aligned is nice)
time to flip the cables on the upper side of the PCB, optionally putting an inline amplifier.
the usual placement for the circuit
Following the guides, I picked +5v and Ground directly from the 7805 regulator
Final result
the connector is indeed identical to the orginal, so no ugly holes etc..
Picture quality is awesome,colors are brilliant and no sign of brightness bars/blur even on dark images.
..that's it, hope this could be helpful to someone attempting the mod as well (^_^)
…now next task, troubleshoot the CDRom2…already changed the middlegear, but even if it is booting the game, it is not able to get all the tracks, so it freezes after searching for a while…seems improving if left on for some minute, so maybe it is "just" a recap…any hint is welcome!
Massi
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