The BEST way Raspberry Pi to CGA Arcade Monitor! 240p NO GBS-8100 REQUIRED!(settings in description)
ฝัง
- เผยแพร่เมื่อ 3 ส.ค. 2024
- Raspberry Pi 3
Old setup: HDMI to VGA to GBS8100 connected to K4901
PROS:
Pretty much plug and play after you make the connector to the monitor
CONS:
Requires 5v connection
Image Resolution not low enough for clear images(makes image look blurry and washed out)
Only fills screen when adjusting with onboard controls (and settings do not save when turned off)
New Setup: HDMI to VGA to VGA BREAKOUT CABLE connected to K4901
PROS:
NATIVE 240p/480p @ 15kHz - No washed out colors, crispy image on screen
CONS:
Making your own cable can be a task if not technical inclined.
(Ultimarc sells a cable for $17)
www.ultimarc.com/arcade-vga-a...
Pinout
Pin 1 - Red
Pin 2 - Green
Pin 3 - Blue
Pins 5,6,7,8,9,10 - Ground, only one is needed, they should be all connected
Pin 13 - H-Sync
Pin 14 - V-Sync
VGA Breakout cable pinout image source:
92.49.www.savethesoup.de/vga-c...
Need to customize raspberry Pi config per your monitor
(i used a Well Gardner 19K4901)
settings in config.txt:
disable_splash=1
display_rotate=2
disable_overscan=1
overscan_scale=1
overscan_left=35
overscan_right=60
hdmi_ignore_edid=0xa5000080
hdmi_force_hotplug=1
hdmi_drive=2
config_hdmi_boost=11
hdmi_pixel_encoding=2
hdmi_group=1
hdmi_mode=6
If you already have a controller interface and a sound amplifier, this is the BEST method, and it only costs you the price of an old VGA cable or a breakout cable from Ultimarc!
ALT:
JPAC - JPAC is a jamma adaptor accepts VGA input, controller input, sound amp, wires directly into Jamma harness
www.ultimarc.com/control-inte...
RaspberryJamma - Awesome product. I purchased one last year and it was the reason why I wanted to get away from the GBS-8100.
A bit pricy but worth it for a true out of box solution.
highscoresave.com/cat/index/s... - เกม
![[LIVE] : ONE ลุมพินี 73 วันนี้!! คู่เอก "วรพล vs พันฤทธิ์"](http://i.ytimg.com/vi/rrOljlqse3A/mqdefault.jpg)
I have the ArcadeSD and his old Gamma-1 and Arcadeshop PCBs The menu's for those boards are freaking amazing, I enjoy the fact that you can just scroll and start a game right away.
Brilliant to see this kind of video! Great explanations. Hope to see some more video. Picture looks great on the pacman. Nice to see you keep the awsome 19in crt. Thanks
Really AWESOME content man, bring to us more videos like that :D
This video is fantastic, and possibly a starting point for me.
I've been chasing the idea for years to run my older games on an actual RGB CRT (Sony Trinitron) but have always got lost in how to actually create the older signal type 15KHz
and 240p. (is it 30Hz or 60Hz?)
The last thing on Earth I'd expect is to be able to get this out of a cheap HDMI to VGA adaptor or a Pi.
There are so many years of rabbit holes requiring really old software and special Hardware to produce this result. With no real answers or hardware availability.
This looks like it could actually work much to my surprise.
I have a number of other issues to overcome as my MAME and ROMS are all from 1997 and only work on some old Windows98/95 version of MAME32 that I have.
So apparently, I need a more modern version of MAME and all new ROMS as my old ones will not work.
But that's an entirely different issue that I can figure out.
Thank
you so much for your info. I have an old Time Pilot cabinet that I was trying
to configure with a Rasberry Pi 3 and didn't have any luck getting it to work
with the original CRT until I found your video. My monitor is slightly
different (Wells Gardner K4951). My JAMMA harness is connected to a J-PAC and I
can confirm that the monitor works great with your settings without using the
custom cable since the J-PAC is already connected to the monitor through the
JAMMA harness.
Awesome! Glad it worked out for you!
You made my day! I was struggling with a GBS8100, for me its a piece of crap! Used your settings and voilla! Now have an awesome picture quality! Thank you! Only thing to say is you don't have to combine hsync with vsync, i used only hsync and everything is ok! :)
Awesome! Glad it worked out for you! The sync can depend on the monitor in some cases.
Hey thanks for info found one Mike's Arcade but also had to buy jamma ext. Hopefully soon I'll get this all figured out.
Very tastefully converted Pacman cabinet! I have used the VGA cable hack method on all of my cabinets, but use a PC for the emulation. I've got hold of a Raspberry PI now, and am going to do some experimentation soon. Thanks for the detailed video!
Thanks! My goal is typically to make the game just a board swap away from being original if I’m putting a pi or PC in it.
I actually just did a GroovyArcade build with an old PC using the same breakout cable. Turned out well, except I had to bypass the JPAC for the video because it just wouldn’t sync no matter what I tried. 😢
@sk8ersublime I guess the JPAC bypass using GroovyArcade would be necessary, as GroovyArcade (well, GroovyMAME in that build) does all of the front porch / back porch / 15Khz analogue CRT conversation output itself, without any special convertor (ie: a JPAC, etc)... hence its charm (and AMAZING emulation results). GroovyArcade is amazing.
I LOVE THIS
Great video. So much great information! Have an old cabinet with a good arcade CRT looking to add a PI too it. Seems so simple the new / second way of doing it.
I was wondering what image are you using for your PI. Where to find image? How large?
Been looking for an image like the one in your video, really like it. Keep up the good work. Thanks.
Check out Arcade Punks website. There is a front end called Vertical Rise for the RP3 that works great. Download the torrent file and use Utorrent to download the content. It's about 16gb. Good luck
This was a great video. I’m redoing a cabinet with such a monitor and it’s already setup with a direct vga cable. Guessing it was put together the way you did. I’ll give it a try when I get my RP4. Newbie, so learning curve is steep.
Thanks for watching! Shoot me any questions and I’ll try to help
I can send some pics of my setup but youtube isn’t giving me that option right now.
My cabinet was an old mame machine and the monitor looks almost exactly like yours. He had it setup with a VGA cable going directly to a connector on the monitor board. It has about 10 wires connected. It was connected to a computer video card of some sort. Is it safe to just try it out with the RP? I've read a few places that improper voltages and cause damage. I would like to send you a pic to see what you think if there's a way to DM you. Thanks again.
Josh if it’s an old mame machine it’s very likely it was connected to an ArcadeVGA video card in the PC. Very likely the same cable breakout cable sold by Ultimarc as they were the ones who sold the ArcadeVGA. The pinout should be the same, but I would verify with a mutlimeter to be safe.
@@sk8ersublime thank you. Would you share some good sources on this topic? I am very interested in it.
I had to do this about 12 years ago to run a arcade vga to a scart for crt TV that I installed in a cabinet
Very informative vid mate - helped me heaps. 1 question though - doesn't VGA output @ 31kz (and the monitor would be 15kz) or is this something you can adjust in the config?
Cheers :p
Good question, I'm wondering the same thing...
Sick builds. Have you tried "run-ahead" mode in retroarch to remove the controller latency? I find 2 frames is perfect.
Enjoyed the video! Curious what version of mame you are using? I have about 10 diffrent arpicade images and always on the lookout for which roms work best with each software version. (Arpicade 3.7, 3.8, etc...). By the way, the Arpicade itself is a fantastic product for any Jamma setup.
Yea the RaspberryJamma aripicade is an amazing plug and play solution. I have the 4 player version in my TMNT cabinet since it didn’t have a board and it’s been great. For mame version, I’m using the arpicade 3.9 image so I think that has .207, .192, .172, and .139.
Brilliant…
Great job! I’m in the same position with my miss Pac man cabinet. What version of mame are you using? And I guess the trick is to find the roms for that version of mame. Also did you get the high score saving to work? I have a similar set up with RaspberryJAMMA but trouble with some games working or appearing in the menu
I’m using various versions as some work better for certain games. I’m using the ArPiCade image that I use with my RaspberryJamma. It has versions .207, .192, .172 and .139 I believe. I would have to double check
Instant sub, thanks for the info!
Question. I have two CRT monitors with the CGA/9-pin input (and the requisite RGB pins visible/accessible inside, similar to an arcade monitor) that seem like maybe they were from a video wall or similar. Before I go buy an RPi3 and/or other accessories, is there any chance a weird resolution would prevent this from working? And/or if so, any other ideas for testing these CGA/9-pin monitors somehow before ditching/donating them?
Not really sure off hand, I would assume it might work as long as you know the pin out of the db9 connector and wire everything correctly to RGB and Sync. Good luck!
@@sk8ersublime Fun twist, I'm dumb and there are actually only 5 pins, R G B E and S. RGB and S make sense, but not at all familiar with an E pin.
When you tie the horizontal and vertical sync lines into a single line going into the arcade CRT, do you have to add a resistor in series between those lines and the monitor? Doesn't that double the potential current going into the monitor's sync?
I used a VGA666 interface, I think is a cleaner solution. My cabinet also has CSync, so I had to combine the sync signals, as well. As far as I know it is not recommended to just connect both cables together, you need a combiner circuit like this: www.retrorgb.com/building-a-passive-sync-combiner.html . Also, there is a specific 666 converter that has the csync ready: retrogamerestore.com/vga666rgbs/
Great video and great explanation! Do you know if I could do this with a medium (EGA) resolution monitor? Thanks for the video.
I’m not sure off hand, as I’ve never worked with one before. I would assume it would work as long as RGB and Sync are the same, but you would use a higher resolution. But Again I do not have experience with that. Thanks for watching!
@shark80228 I have an old school Japanese Sharp CRT monitor Analog DB9. I haven’t connected it to anything yet. What are the res differences on CGA vs EVA?
@@r.in.shibuya CGA is 15khz and ega is 25khz. EGA is medium resolution and CGA is a lower resolution. Getting input at the correct frequency is the tricky part. I'm still trying to figure it out.
Shark80228 thanks the for the reply. I am dealing with a CRT monitor that has a DB9 input (SHARP CU-14AG2) all I know it’s a color RGB, I believe it was for the old first gen PC’s (NEC PC98). It turns on but still no source to test it with. I picked up the HDMI > VGA (db15) converter and used a db15>db9 pin converter. Before I adjusting setting with my Raspberry Pi I want to make sure it’s working. I do See the crt rays minimizing and expanding on the screen when I switch it on an off... but I’m not sure if that a marker of it being 100% functional, I do have a strong feeling the monitor is fine.
I never knew you could do any of this with pi
Did you ever figure out how to rotate the service menu? Driving me crazy. 😀
Do you need blocking diodes or anything when you combined the H & V sync?
Great video, thanks for sharing! Could you please explain what exactly is providing the native 15khz video signal? I thought VGA was 31khz natively.
Also, how is the audio amplifier being powered? By usb?
Nice job!i Works with out raspi-jamma?I planning to use 0 delay encoders and wire up straight to the arcade monitor
yea! no raspberry jamma required! Good luck with your build!
sk8ersublime Thank you .Only problem I have now is overscan on top and bottom.Do you know how to fix this?
Arcadezone 81 you will need to play around with the overscan_left and overscan_right settings. Try them at 0, or comment them out. I tried a bunch of settings until I found what worked best for me
sk8ersublime I will.Thank you
Friend can you send a pic of the cable ?to see exactly the connection because i make one but doesnt work.thank you
Is there any windows software solution ? Great Video
Thanks! I’m not sure at the moment about Windows. I know there was soft15kz bitd, and ultimarc sold the arcadeVGA card that supported it. I haven’t done much research into using a PC, although I probably should for better performance.
I am using a 60 in 1 currently, I had no idea you could set the pi up for vertical. I may well install my pi 4 as well now, but my crt is on scart which is a pain in the arse, got an ultimate scart adaptor on the way as nothing else has worked properly display wise using any cable adaptor so I'm hoping the ultimate adaptor will do it. I can only dream of a wells G. monitor at min :P one day....One day.
I don’t have any scart experience, but it looks like that ultimate adapter should do the trick based on the description I just read. Good luck!
@@sk8ersublime Thanks and I sure hope so I've tried a few adaptors for scart crt now and none are very good tbh. I know you can fiddle with the tvs to accept an standard rgb input but I was trying to avoid that and a proper arcade wells G. Monitor is way out of my price range right now.
just make up a cable
@@Teckno77 SCART-equipped tvs accept by design RGB over SCART...
Do you know where I can find the break out cable for similar monitor? The link is down
hey back again..so i purchased the arpicade with jamma from high score, and 3bplus with arpicade 3x latest download. i also have the WG 4900 zaxxon standard resolution. now come to find out from arpicade noob section, this wont support medium resolution Arcade CRT, only low resolution. the picture is split half at top and half at the bottom of screen which i heard you mention in the video, and the picture is not clear like its not scanning properly. do you have any suggestions for my setup possibly changing config to what you have cause you have same monitor has i have?? any help would be great .
Sorry I have no clue as I don’t have any medium res monitors.
i tried this on a pi4 with a XM-2001N monitor and it couldnt get it to work. it was heart breaking
So, if my CRT already has a VGA port built out of it, and I do a HDMI -> VGA converter from the Pi, do I still need to build a break out cable? Or can I just use the cable + adapter and adjust the Pi config?
If your monitor has a VGA port, it’s likely not a CGA arcade monitor or a hi res monitor. I believe At that point you can just use a normal VGA resolution with an HDMI adaptor. You wouldn’t need to do these settings as they are here to force the pi to output to old low res arcade monitors 15K signal. Instead of the 30 you get from VGA.
Where are you located? Would you build a game for me using my Centipede case?
The settings i have to do it before i connect the pi with the crt ,in an another screen or i can do it in the crt screen?if you have any photo of your cable connectivity i would appreciate it.
Thank you friend..
You need to modify the settings either using ssh to the PI or directly plugging the sd card into your pc
Howdy. If you JUST did the wiring and not the in depth coding to the RasPi, how would the image look?
Without making the changes in the config file, you won’t get an image on screen. You get will a rolling out of sync picture. If you don’t want to do the config, I recommend getting a RaspberryJamma from hiscoresaves
@@sk8ersublime OK. I think i'll give the coding a try. SO, I'm using the RetroPie Emulation Station software, and I believe you are using the Arpicade software. Can I find these settings in RetroPie? Also, if i make these changes, will they also affect the main menu screens in RetroPie/EmStation ?? Essentially, is the whole system (in game or menus) running in CGA mode the whole time?
The build is arpicade 3.9. It’s not retropie, but similar. When you modify the config file, it’s system wide, so yes, everything will run in the lower resolutions
@@sk8ersublime Hey thanks so much for helping me. I just figured out how to SSH into my RasPi and can see the many options to change, BUT I dont see all of them. I don't see hdmi_pixel_encoding=2 or hdmi_ignore_edid=0xa5000080 Can I just type that into the lines of config?? Or how can I access them?
@@selophane43 yes you can just add the lines. You can also do this without ssh if you access the sd card on a PC.
Do you think the breakout cable can be used on PC or only works on a Pi?
The breakout cable will work with a PC, but you have to get a driver or some software to drive the low resolution.
Do you know if you still need the breakout cable if you're using a JPAC?
Seen other videos where they connect the vga in and pass the controls and video out via a standard JAMMA harness connected to cabinet. Check ultimarc instructions.
Anyone who does this have any issues with the voltages from the VGA's RGB signals being too low? I've heard that is a concern that causes too dim of a picture.
Yes it's common occurrence, in fact some converters-adapters amplifiy the video signal for this reason.
@@jimbotron70 I eventually tried it out with my Pi 3, a VGA666 hat, and a sync combiner circuit I built from a schematic off the RetroRGB websit. Didn't have to amplify anything and it looked flawness on my arcade monitor in my MK3 cabinet.
Got a Pi 4 recently, and looking forward to trying that next.
Would you sell one of those cables?
I hooked up my hdmi to vga and made.a.cord with a pinot has you described! I also entered the changes in the config.txt but no dice no picture on my car 15kHz zaxxon cabinet my screen works with Saxon pcb. What version of retropi should I be using? Think I'm going to update my rasppi have not updated my pi2 in 3 years. How's the south park pin going? I'm sure I'm missing something or I'm thinking of getting the jamma hat for mine like you did on your other machine. Thanks if you can help in anyway but no biggie if your busy. Thanks for sharing your videos.
I’m using the arpicade image. Not using retropie. I have only done this on a Pi3 and Pi3+.
Verify your pinout is correct and that your zaxxon sync it correctly configured.
South Park is working great! I need to get new artwork for it and a colorDMD and then there won’t really be much more to do to it :)
The RasberryJamma is an awesome device if you just want it to work without the headache of creating a cable and messing with config.txt. I bought mine from highscoresaves and got the arpicade image from their support forums.
After you get your south park sorted what's your next project?? That's a great pinball. I have stern lightning, stern ted nugent, stern meteor which like you I drove 3 half hours one way to get that one. And a Williams laser ball. All been rebuilt in some ways. Anyway I decided to buy the same one you have from same company with games and the 10 extra for.zaxxon picture not sure what that is a image of zaxxon. and the connector with no wires and a rasp.3+ $237.00 I really want to keep my zaxxon it.all.works and pcb after hours of trying to figure out the board with a pulse ic tester. Found out it was one of my ram chips. But sure was worth it fixing myself. I found the ram chip on eBay and the seller decided to send all ten ram.chips for price of one I messaged him and he said they been sitting in is store for 10years. He said someone might has well have them. Very cool! I've kept my crt.But when I got machine it had a lot of burn in So I picked up a few crt tv's on CL all.19 in and changed the tube for a Samsung and used my old yoke. I capped it and it took some time with setting it up convergence and magnet strips but the TPG from arcadepartsandrepair. Made it easier to.adjust. That company is great the owner is super helpful and emails you very quickly with answers. Can you recommend a company for my control panel graphics for my zaxxon? Can't seem.to find any place on google. The Pac man cabinet looks to be in good shape? And that video you made on donkey Kong marque with your phone that video.quality was.So poor! To bad I wanted to see that better maybe you can make a video of cabinet again? And thanks for the info I'm still going to try to see if I can get it to work whilst I'm waiting for my order can't wait to see how this all.works out. Thanks
TheSawyer10702 oh man...that donkey Kong scratch build....I don’t have it anymore. I had a real DK but I’ve sold it since :(
For artwork, check with thisoldgame or szabosarcade. Both can probably do custom for you if they don’t have it. Thisoldgame has super zaxxon listed
So I got my arpicade board but my zaxxon has a straight 22 pin edge connector but the jamma has 21 and a slot then 6 so not sure how to hook up and can't find on website how to connect to my arcade any suggestions? I posted on arcadepi forum also so any help please
TheSawyer10702 buy a jamma harness and rewire your cabinet. Or find an adaptor for a zaxxon to jamma. Do not plug the arpicade into your cabinet until you verify you have a jamma connection and your voltages are going to the correct jamma pin standard!
Get a 404 when I click on the link for VGA Breakout cable pinout image source. can you supply a new link?
The link was to the source image in the video. You can see the image around 9:20 of the video.
Thank you! followed your instructions and worked a treat!
@@cyc0tic awesome! Glad to hear it helped someone!
I'm confused as hell.
You are doing HDMI to a VGA adaptor.
What is the actual monitor? (just watched the video again to get that)
Is the Wells Gardner actually just a VGA monitor? (guessing no) "standard arcade monitor from the time" no specs that I can find so far.
=Your title is CGA and 240p=
You DO NOT get a CGA digital 16 color signal from an HDMI to VGA adaptor! and also the Wells Gardner is not a CGA digital input monitor right?
What's going on here? also I am new to this.
I am trying to figure out how to get 240P RGB and Sync from a Pi to an RGB monitor at 15KHz (which you also can't get from standard VGA)
Also can't find any kind of spec sheet on a Wells Garner 4900 or 4901.
Confused still? yes very.
And I expect those to be analog RGB +Sync 240p 15KHz
And not what I'd expect you getting from and HDMI to VGA adaptor on a Pi.
Help! and thanks!
The monitor is a Wells Gardener 4901 which is a CGA arcade monitor that accepts RGB @ 15K. It is not a VGA monitor which would be a 31K sync. I’m not going to pretend I know everything here haha, but the timing settings for the HDMI mode on the raspberry pi config are what deliver the correct RGB signal @ 15K. I just found the settings online on an arcade forum. The HDMI to VGA adaptor is allowing me to get the RGB and Sync on separate connections so the monitor can accept the input.
Hopefully that makes sense and helps.
@@sk8ersublime Just typed an entire page here and submitted and it's gone :(
CGA monitor is 4bit TTL and not VGA.
So one of my points of confusion is that going from HDMI-->VGA-->monitor is NOT a CGA TTL signal. (if that is a VGA adaptor).
HDMI to VGA would normally do exactly that, Change HDMI to VGA RGB analog 31KHz. (thus my confusion so far).
I think what might be going on here (and I can only totally guess or make shit up at this point) is that the "VGA" adaptor is not really a VGA adaptor, but maybe some kind of straight through connector actually from the HDMI itself and the HDMI itself might be generating TTL CGI stuff using special software/driver.
But a totally random thought I am pulling out of nowhere.
@@sk8ersublime could you link me to the article how to get pi to output 15 k ,
the best way is more something like rgb-pi...
slyder the great i haven’t used that before, but it seems to be just like the RaspberryJamma. I prefer this solution because it was the cost of a HDMI2VGA adaptor. ($5-10) and a VGA cable. This looks identical to the picture quality I am getting from my RaspberryJamma, for roughly a tenth of the cost. There are multiple solutions to achieve this, I personally feel the less hardware involved, the better :)