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Showing results for tags 'RGB'.
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From the album: INTV
Intellivision RGB mod completed. Testing before reassembly. Using cheap Chinese converter/scaler since timing is incompatible with OSSC.© TJW 2019
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So for my study in electrical engineering I had to design a single pcb, but I actually ended up designing multiple. The first one was an RGB board for the Colecovision that converted the analog video signals into RGB. With the schematic I built it from being quite sketchy, I'll only share it if it delivers any decent results. The second PCB is one I'm a little more confident with. There used to be a board like it called the Zoe (kinda wanna call it the Joey), but it was apparently a tough one to get. I also didn't like the idea of soldering 10 wires to the PCB. My idea is to imitate what Tim Worthington has been doing with the NESRGB and 2600RGB boards, where the modboard sits in the socket of the IC it takes the signals from while still leaving the IC functioning the same. This method is more work, especially if the IC isn't socketed to begin with, but leaves a much more tidy result. I also went with SMD components over through-hole as this allows for a smaller PCB, although it may scare the hobbyist away from it. The three IC's will be tough, but the other components should be easily doable with a soldering iron. The board also houses an additional pin header to do a composite video mod, which will require soldering a single cable to the Intellivision's board. Considering this is just a 3 bit DAC (times 3) I also tried making it with Opamps, but wasn't succesful in simulating anything functional. I didn't want to include a negative voltage on the board to use different opamps, and couldnt get anything working with single supply opamps. I'm not an electrical engineer quite yet, so my attempts only take me so far.
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I recently acquired a CGL M5. Its a machine I've wanted since they first came out. I loved the design of the Sord M5, and even though the CGL version doesn't share the Sord's elegant "M5" logo, it wasn't very expensive and allowed me to explore the great "M5 Multi II" multi-game ROM made and sold by Charlie Robson. Now this post may be in the wrong forum. But you guys know TI hardware better than anyone, and the CGL M5 uses the TMS9929A VDP also found in European spec TI99/4As among many other machines. The M5 then converts the R-Y, Y, B-Y output to composite PAL. But my monitor is a North American Commodore 1084, and expects composite NTSC or RGB. I've looked around for a 9929A to RGB conversion schematic, and there are a few, including the one linked in this document from a Sega SC3000 forum: http://www.smspower.org/forums/2325-RYBYYOutputFromSC3000VDPTMS9929 But I also see that some people have tried this approach and met with mixed results, including one ColecoVision owner who it seemed may have fried his machine in the effort (see post 26) http://atariage.com/forums/topic/110598-colecovision-av-out/page-2 This guy has a neat looking board that it seems would make pulling RGB from the TMS9929A straight forward, and has generously shared all the schematics and build files, but since I have never had a board made before I am way out of my depth on this one: https://hackaday.io/project/13056-tms9929a-rgb-and-component-adapter So another approach might be to convert the CGL M5 to use a TMS9918A instead? Can that be done? From an evening spent looking at websites, it seems I might be able to remove the 9929A and insert the 9918A. Leave pins 35 and 38 NC, and then drive pin 36 directly to the RCA jack. I'd need to replace the oscillator too to get the right color signal for NTSC, and probably burn a Sord NTSC BIOS so that the unit reports itself as NTSC to those games that depend on timing. So how insane is the replacement plan? Would it work in theory? Assuming there isn't something else in the Sord's design that prevents it? Can you tap composite NTSC right off pin 36 of the VDP? What else would I need? Diodes? Resistors? And if these questions are worthy of a face palm, should I just go hunt for a native NTSC Sord model? I can also lug my Sony PVM out of the closet which has PAL and NTSC Composite and S-Video, but doesn't have RGB, so the Amiga and ST displays look awful. Thanks for any pointers.
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I wanted to create a cable to connect my Amigas to my Atari SC1224 color monitor. I found a few forum posts on the issue: http://eab.abime.net/showthread.php?t=80003 http://www.atari-forum.com/viewtopic.php?t=30991 http://atariage.com/forums/topic/189852-how-to-find-a-good-amiga-500/ But nothing with the actual schematic. It should be straightforward, but the poster in the English Amiga Board post stated he was having problems, and someone suggested taping the CSYNC line instead. Anyway, I made a cable with a simple RGBHV and GND connection from the Amiga to the SC1224 and it works beautifully. I added audio too by tying left and right audio together and feeding them to pin 1 of the Atari monitor. Here is the schematic: And here are some results: I figured I would add this here for anyone else wondering if there is some weird magic to connecting an SC1224 to an Amiga. There isn't. The only surprise was that the original Amiga RGB video cable I tried to use as a donor does not carry HSYNC and VSYNC at all. I has to sacrifice an Amigakit RGB to SCART cable in the end too. So far at least though it works great and looks beautiful. Graham
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From the album: CatPixtures
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From the album: CatPixtures
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From the album: CatPixtures
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From the album: CatPixtures
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From the album: CatPixtures
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From the album: SCART-Genie
SCART-Genie v1.0 designed by Chris Schneider (me). Allows for easy connect of Geneve 9640 to a SCART enabled monitor. Sync Cleaner enabled circuit Internally powered Internal/External speaker selection© Copyright 2018 Chris Schneider
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From the album: SCART-Genie
SCART-Genie v1.0 designed by Chris Schneider (me). Allows for easy connect of Geneve 9640 to a SCART enabled monitor. Sync Cleaner enabled circuit Internally powered Internal/External speaker selection© Copyright 2018 Chris Schneider
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From the album: SCART-Genie
SCART-Genie v1.0 designed by Chris Schneider (me). Allows for easy connect of Geneve 9640 to a SCART enabled monitor. Sync Cleaner enabled circuit Internally powered Internal/External speaker selection© Copyright 2018 Chris Schneider
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From the album: SCART-Genie
SCART-Genie v1.0 designed by Chris Schneider (me). Allows for easy connect of Geneve 9640 to a SCART enabled monitor. Sync Cleaner enabled circuit Internally powered Internal/External speaker selection© Copyright 2018 Chris Schneider
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Up for sale are the citrus3000psi RGB boards for the Colecovision/ADAM. These boards are designed to be soldered to the bottom of the VDP and provide RGBS to an output connector of your choice. To properly calibrate these boards, 3 onboard POTs are used to adjust each color individually. Please note that to properly calibrate the board, you MUST use an oscilloscope. If you do not calibrate with an oscilloscope and choose to adjust by eye, please note that any compatibility issues, damage, or world ending results via the summoning of Cthulu are solely your responsibility. Each kit is sold as a DIY and fully assembled/tested before shipping. If you receive a board and have issues, please contact me. If the issues are found to be related to misuse or improper installation, you are on your own. If there appears to be a defect in manufacturing, I will work with you towards an amicable resolution. No output connectors are provided, except with install service. Output connectors can be whatever you wish but the cables themselves must be pass-through, ie no capacitors or resistors installed. If you need assistance with purchasing cables or output connectors please reach out and I can answer your questions. Each board is $30 shipped in the Continental US (CONUS). If you do not feel confident with the installation or would prefer to have it installed for you, I will be providing install services with oscilloscope calibration of the board. Cost of this service is $80 including the board, but not including return shipping.
- 13 replies
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- 2
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- Colecovision
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Wanted to get a head start on seeing what other Geneve users would like to see for packages offered for the SCART-Genie.
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Framemeister Xrgb mini framemeister RGB and composite issues
Andrew_whites posted a topic in Hardware
Hello Forgive me if I'm doing this wrong but I'm new to this, so I'm a bit clueless as to how all of this works. I'm having issues with my xrgb framemeister that I had purchased about a month ago from Solaris. The EU RGB scart cable for my mega drive gives me picture on a TV no problem by using the in built scart port, but using it through the xrgb is a different story. There is no picture, the screen is blue with "no input" written at the bottom of the screen like there would be if there was no device inputting to it, but there is sound, but it's fairly muddy and garbled. Trying to use the composite will work, but there is a green line down the left hand side of the picture while using both my mega drive and N64. The d-terminal connection appears to be fine using a ps2. I have been onto Solaris's customer support about this but it's been like pulling blood from a stone. I originally thought that the issue might be the adaptor itself, but Solaris requested that I opened it up (which seemed a little off, I was afraid of voiding any warranty I had) to verify that the adaptor was indeed an EU one as opposed to an jp-21 one which I suspected could have been the issue. Solaris has been quite for the last 2 weeks almost with only one message in between to tell me that they were "looking into it" and that "they won't leave me hanging". I'm pretty fed up at this point as I'm almost 100% sure that there is a fault with the device itself and not the cables that I've been using, but I don't know what else to try at this point. This issue was occurring before I updated the firmware so that shouldn't be an issue. Any suggestions would be much appreciated. -
I just ran across this on Twitter, a new DIY ColecoVision RGB board by Citrus3000psi. Still in prototyping phase but will hopefully be coming out soon, after some more testing. This might be a nice alternative to the F18A for DIY'ers. Check out @citrus3000psis Tweet: https://twitter.com/citrus3000psi/status/953443909501444096?s=01 Now if someone would come out with a better Intellivision RGB board, I'd be on cloud 9!
- 587 replies
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- 8
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- ColecoVision
- RGB
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Analogue Nt Mini cable for SCART-Euroconector use. -
Analogue Nt Mini cable for SCART-Euroconector use. -
I have a Magnavox 8CM515 monitor that I would like to use with a Genesis or SNES. However the analog RGB input has H and V sync while my game consoles have composite sync. Does anybody know if the 8CM515 will work with composite sync? Do I have to make a sync separator? What about the Commodore 1902A? I swear it looks like the same monitor from the back.
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Hi guys, I would like to know your experiences with Monitors/Displays for running your TI-99, be it the US version (Composite) or the (European) PAL version using the YPrBr, or via the french RGB modulator RVB PHA 2037. Also I would like to know whether anyone tweaked his US console with a TMS9928A to get YPbBr out of it? It looks to me this is the best video chip to maintain the original desired speed of 60 Hz but getting the video signal via 3 component lines. The official TI branded 10" monitor is nice, I am missing the option to have RGB or YPrBr input. Even though there is supposed to be a PAL Version, that is nowhere to be found. I know about the F18A as video chip alternate with VGA output, I have two at home, however I am aiming for one setup now running the original experience. Sprites look so much more organic if there is Scanlines. In regards to the Monitor, I read a lot about Sony PVM CRT (Sony Professional Video Monitors) being the ideal displays for Retro Gaming since they don't upscale or screw up the video by believing it's interlaced content. Their geometry and quality is supposed to be outstanding. And from watching videos running RGB modded game consoles I can only agree with them. Sony PVM means they were not meant for the Consumer market but for the Professional market and therefore super expensive. Above that level is ever a higher class called Broadcast Video Monitors (Sony BVM). Those have even higher quality standards. Those devices can be feeded via Composite Input but you should aim for YPbrBr or RGB video as Input for those. Here is some example video, there are lots out there, it's kind of hard to capture the quality of those devices since they are from CRT (interlaced) running 60fieldsPerSecond and Youtube has 30fps: People talk a lot about 240p meaning, even though the console renders two fields via it's analog video out ports the content of those two fields match one progressive frame. A lot of TVs/Upscalers treat the ouput wrongly as 480i and starting to process the video with which then the problems starts. BR Klaus -
Hello all Signed up here to ask for help regarding RGB output for G7000 / G7400. In short, I need to record a bunch of videos of various Videopac games for my project 8bitmemoirs.com For this reason, one of my mates have modded my G7000 to have RGB output, but it's displaying wrong colours. I found a video on YouTube demonstrating the exact same problem: https://www.youtube.com/watch?v=ct6Wv3eyPzM#t=2m20s Notice the red and blue is way too dark. That's not how the colours are supposed to look in that game ("Race"). So for a short while I gave up on RGB and asked my mate to instead put in a composite mod, which he did, and it works but the picture is just as awful as an RF signal. Therefor I'm back to hunting a good RGB solution signal now. So I have 3 questions for you all: 1) Does anyone know why the colours are too dark with an RGB mod for G7000? Is there anything we can do about it? 2) Is the RGB output better on the G7400? And is it easy to add an RGB mod to the G7400 that doesn't come with one pre-installed? 3) Are there anyone here who has a spare G7400 with RGB output they'd be interesting in selling? Some pictures demonstrating my problem: http://www.amibay.com/showthread.php?88818-Help-requested-for-RGB-output-for-Philips-G7000-Videopac Thanks!
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I put together a few INTYs with RGB and power LED, I've one for sale now. eBay Auction -- Item Number: 232273666426 I realize I'm no veteran so here are links to my work... http://atariage.com/forums/topic/262378-intellivision-rgb-install/ http://atariage.com/forums/topic/263108-intellivision-power-led-light-pipe/
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From the album: INTV
Intellivision RGB mod installed. RGB board mounted on mobo instead of inside case.© TJW2019
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Would like thoughts on personal 2600 av svideo rgb mod work - pics
H454 posted a topic in Atari 2600
Hi, I've been on the forums for awhile(mostly reading) -the posts are very informative and friendly. After doing my own av mods and considering selling the units or doing installs for others, I wanted to get a feel for what people consider my quality of work. Also to make the installs as clean as possible - I think RCA jacks sticking out the back look terrible and even worse - the sides. One is a 2600jr with the ElectronicSentimentalities s video mod( av cable connects to a trs jack in the old RF port - I wanted to use a trs jack and then saw the game-tech install video using the RF port) and 2600 vader with 2600RGB mod(with composite -trs jack, component - trs jack, s video and RGB via framemeister cable). I don't like hot glue and it's almost never needed - I used epoxy for the ports. And once the case is closed - nothing should be moving if the wiring was routed right. Yes, I did use cat5 wire for the installs, but solid core is better for something thats not moving and its what I got with the kit from ES. I know the ports on the vader are a little tilted, but was also my first time using epoxy. Here are some pics, feel from to ask questions or give CONSTRUCTIVE criticism. - Thanks
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