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NEC PC-Engine/SuperGrafx => PC Engine/SuperGrafx Sales & Trades => Topic started by: pcenginesales on November 06, 2011, 11:29:10 PM

Title: FS (Florida) Region+RGB modded white PC Engines
Post by: pcenginesales on November 06, 2011, 11:29:10 PM
http://www.retro-access.com/ourshop/cat_150586-Modified-consoles.html

Just had an order fall through on these so I've put them on my site. Usually the site has a backlog with orders with everything apparently "out of stock", but as I say - this order fell through.

This mod uses the NJM2267 ICs which after heavy testing of various methods I find to be the best mod possible. Really cuts down the vertical banding visible on transistor mods.

There's a video of the mod method here.

I had a couple requests a while back for a white PCE but we were so heavily backlogged with orders I couldn't find time to do these jobs, if you needed a console and have requested previously please let me know. They do sell out fast because of the good condition they are in and lack of white PCEs on the market.

International postage is $13.95 on these light consoles.
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: herr-g on November 07, 2011, 07:00:24 AM
Great price. And quality looks awesome!!
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: Nando on November 07, 2011, 08:04:05 AM
did the coregrafx 2 fall through?
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: thesteve on November 07, 2011, 09:10:16 AM
if a transistor mod is having "banding" issues, it wasnt done right.

the signals were based on tubes. transistors were the upgrade.
chips were to reduce parts count only (typically with reduced quality)

the video amp in the turbo booster is a transistor amp
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: pcenginesales on November 07, 2011, 11:11:07 AM
did the coregrafx 2 fall through?


No, those are sold out. I just have a couple of white PCEs now.

Re. video amps. The transistor mod commonly recommended on the web (the one on gamesx) ie. the most common transistor mod done by people online has jailbar issues. I am fully aware a video IC amp is a combination of components ie. reduces components neeed. I have tried several video amp ICs and the one I use now is better quality than any other, including the basic transistor mod. Obviously this could be replicated broken down into simpler parts but a lot more time spent=more cost to buyers and I don't think the quality can be improved on at any rate. The NJM2267 is a really nice video amp IC which is very popular with Japanese modders. I saw ghosting effects and jailbars with other ICs. Doujindance on eBay uses it too.

The other good video amps I tried were based on Sony CXA ICs but those are hard to get hold of. Worthwhile for the s-video out if people want it, but most people these days only want the RGB.

I feel the NJM2267 produces the best picture, the other bonus is the SMT version fits inside a standard SCART which means you can externalise the amp. As seen in the video. This enables another thing I sell which is a kit to allow easy DIY installation of the RGB amp for buyers.
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: thesteve on November 07, 2011, 01:09:57 PM
no argument there, just making a statement about amplification.
the lowest distortion will always be the lowest junction count (shortest path)
any "jail bar" issue is related to a lack of filtering in the power circuit (additional capacitor needed), not the design of the amp.
I am aware of the amp circuit you are using, and agree its a nice amp.

the component video mod i just designed is using a single transistor amp for the green integrator without any "bars"
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: pcenginesales on November 07, 2011, 04:06:02 PM
Just thought I would post my eBay feedback, long history of selling PCE and mods - I've sold here before but that was a long time ago. Moved here this year from UK.

http://feedback.ebay.com/ws/eBayISAPI.dll?ViewFeedback2&userid=retro_console_accessories&ftab=AllFeedback

Mostly I sell RGB SCARTs for most consoles plus a few PCE games on that ID. I used to trade as pcenginesales.

Everything on my site can be paid for by Paypal so it's covered anyway, just thought I should clarify all this as I saw in another thread people not wanting to trade with a person with a few forum posts. I have 7000+ eBay feedback and 99.9% of that is selling (literally.)


Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: GohanX on November 08, 2011, 12:54:07 AM
I am really tempted by the modded PC Engine, but I ordered one of the RGB cables instead, it should be easy enough to add a panel mount DIN 8 to the Turbo CD dock. Other than the added RGB pins, are the other pins wired like a standard Duo AV port?
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: pcenginesales on November 08, 2011, 05:42:06 AM
I am really tempted by the modded PC Engine, but I ordered one of the RGB cables instead, it should be easy enough to add a panel mount DIN 8 to the Turbo CD dock. Other than the added RGB pins, are the other pins wired like a standard Duo AV port?

Hi,

Thanks for your purchase - yes the other 5 pins are standard Duo AV type, the top three go red, green, blue from the left.

The amp inside the cable is the same type as seen in the video.
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: Flare65 on November 08, 2011, 04:21:12 PM
Question.....

How do I hook up a RGB modded Duo to a modern TV?  Is there some sort of HDMI converter that we can use?
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: pcenginesales on November 08, 2011, 10:51:55 PM
Question.....

How do I hook up a RGB modded Duo to a modern TV?  Is there some sort of HDMI converter that we can use?

Generally the best success I have had is with VGA upscalers. Cheaper HDMI converters don't upscale well and the one I bought defaults to converting to composite video despite being fed the right voltages for RGB switching. Component video conveters are better for CRTs as many LCDs don't display low resolutions through component. If you want to do it cheaply and have a VGA socket, go for VGA. If you can afford to not do it cheaply, get a DVDO Edge (which then requires a SCART to RGBS converter) or XRGB from MIcomsoft (which similarly requires a converter) - these converters are just cheap through ports though.
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: Flare65 on November 09, 2011, 01:39:05 PM
My TV (LG model 47LH30-UA) has a 15 pin RGB in female port on the back of it.  Looks like a vga connector to me.    What can you recommend that will work to hook up through this port?  The DVDO Edge was around 400.00 when I googled it. 

Do you know of a brand that will work that is cheaper?

The cable I have looks like the one in this auction  (your auction??):

http://www.ebay.com/itm/White-PC-Engine-RGB-SCART-plays-Turbo-Grafx-PCE-games-/160679176179?pt=Video_Games&hash=item256939a7f3
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: pcenginesales on November 10, 2011, 09:31:02 AM
My TV (LG model 47LH30-UA) has a 15 pin RGB in female port on the back of it.  Looks like a vga connector to me.    What can you recommend that will work to hook up through this port?  The DVDO Edge was around 400.00 when I googled it. 

Do you know of a brand that will work that is cheaper?

The cable I have looks like the one in this auction  (your auction??):

http://www.ebay.com/itm/White-PC-Engine-RGB-SCART-plays-Turbo-Grafx-PCE-games-/160679176179?pt=Video_Games&hash=item256939a7f3


Yes that's my auction.

Plenty of much cheaper SCART to VGA converters on eBay. I use the RGBS/CGA to VGA board personally, which requires an extra sync stripper - I do sell these for $30 meaning you can do the whole thing for $70 ish. Or I can supply a VGA type plug with sync out for your console instead of SCART meaning you do not need the sync stripper. Easy enough to do and I have the parts. I'm going to sell these cables soon because lots of people have that cheap VGA board.

The quality of the upscaling is not as good as DVDO and you may see some lines of pixels looking thicker in places. However the image quality is far superior to composite video, obviously. PC Engine works pretty well with it. You may see some image tearing at times with some consoles when there's lots of scrolling. Depends what you think you can tolerate, it seems to be system specific. SNES has a lot more image tearing, Saturn has basically none (see: - no tearing.)
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: Flare65 on November 10, 2011, 03:54:03 PM
I'm interested.  What will the difference be between your offering and something like this?

http://sewelldirect.com/Gefen-SCART-to-VGA-Adapter.asp
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: pcenginesales on November 11, 2011, 12:11:59 AM
I'm interested.  What will the difference be between your offering and something like this?

http://sewelldirect.com/Gefen-SCART-to-VGA-Adapter.asp
I'm interested.  What will the difference be between your offering and something like this?

http://sewelldirect.com/Gefen-SCART-to-VGA-Adapter.asp


I honestly don't know what the deal is with leads like that. The circuitry required for converting properly to VGA won't fit into something like a SCART plug. I don't know if they work as a sync stripper (they'd have to, to get anything close to VGA as 99% of SCART cables output composite video, not pure sync.

If you plug that lead directly into your TV it will not work because what you will have is 15kHz RGB in the VGA lead as this is what consoles output for SCART. Monitors that work with 15kHz are rare, I imagine TVs don't support it at all. The RGBS to VGA converter converts this to proper VGA.

I personally use the one without external housing, there's one with housing here http://www.ambery.com/rgbcgatovgac.html - gets pricy. There are some units out there that take direct SCART in. Please note though, I haven't tried any of these. This is the setup I use http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160665425834 - the listing being for the sync stripper for the SCART but as I say with a direct lead from the console you don't need a sync stripper. I bought the RGBS to VGA board from another seller for $40. As far as the fact it lacks casing, you can build your own but I tend to use it as is. Just don't spill anything on it/leave it near static. It doesn't seem to pick up interference from an LCD.

Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: Flare65 on November 11, 2011, 05:51:22 PM
I guess the $89.00 doesn't sound too bad when you consider you get the vga cable, the 5v power supply, and a housing for it all.  Have you tried this particular model?

 I saw a board similar to yours for $33.00 plus $5.00 shipping on ebay.  I found a 5v 2amp power supply cord on ebay for 7.00 shipped. The male to female DB-15 cord for $6.00 shipped.  I'm  assuming any DB-15 cord will work. 

Either way, I would still need that female SCART to VGA cable that you have in your ebay auction.  Do you have another one for sale?
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: pcenginesales on November 12, 2011, 12:05:06 AM
I guess the $89.00 doesn't sound too bad when you consider you get the vga cable, the 5v power supply, and a housing for it all.  Have you tried this particular model?

 I saw a board similar to yours for $33.00 plus $5.00 shipping on ebay.  I found a 5v 2amp power supply cord on ebay for 7.00 shipped. The male to female DB-15 cord for $6.00 shipped.  I'm  assuming any DB-15 cord will work. 

Either way, I would still need that female SCART to VGA cable that you have in your ebay auction.  Do you have another one for sale?


Well I don't know what you will be using on the system but I can make dedicated cables for most systems (console to VGA type plug with a 3.5mm stereo lead for the sound.) If you go for the SCART options the cables themselves will work out cheaper per cable but yes you need the SCART to VGA. I am waiting on some components (little plug that powers the sync stripper) but I'll be putting some of these on soon. I have all the other parts though.

Other bonus with the VGA boxes is you can add scanlines to them. It works with any VGA out. This is a later consideration I guess but you can buy a little box that adds scanlines, or build one. Details are here http://www.mmmonkey.co.uk/console/other/vga-scanlines.htm - I'm hoping to add the simpler version to my store, I don't want to copy arcadeforge's design. They also do a sync stripper but it does no better job than the one I sell.
Title: Re: FS (Florida) Region+RGB modded white PC Engines
Post by: Flare65 on November 12, 2011, 09:41:15 AM
Right now I just have the SCART cable that came with my Duo-R that I bought from Doujin-Dance  off ebay.  It looks like a male plug on the end of it.

I'd be interested in a dedicated cable if you make them.  I just want to get this Duo-R plugged into flat panel TV and see the quality of RGB verses composite cables first hand.

So with your new cable, I would still need that board, correct?