hiya scene , Viletim , Lawrence and Mr-Megalo
im having a slight problem with the Console to Jamma Converter ive built , the pic looks great but doesnt have that vibrant color look and brightness.
this is exactly what its like...........
(http://mmmonkey.co.uk/console/images/nintendo/n64-boost-before.jpg)
(http://mmmonkey.co.uk/console/images/nintendo/n64-boost-after.jpg)
im running a Gamecube , Dreamcast , PS2 RGB cable to the Arcade Monitor with a LM1881N for the Composite Sync nothing is on the RGB lines its straight to the Arcade Monitor Chassis.
One interesting fact is that Gamecube , Dreamcast , PS2 in that order have varing Color and Brightness.
should i attempt the NTSC Nintendo 64 RGB Booster ?
http://mmmonkey.co.uk/console/nintendo/ntsc-n64-rbg-booster1.htm
is there anything else i can try RGB booster , RGB amplifier etc ?
any info helps
s8n
Your pics don't show up, mmmonkey is blocking hotlinked requests, by the look of it.
A video video amplifier will increase the contrast of the picture and a video clamper circuit will stop the brightness/colour changing with the picture content.
I once designed a circuit exactly for this purpose.http://members.optusnet.com.au/eviltim/vga2arc/vga2arc.htm#acvid (http://members.optusnet.com.au/eviltim/vga2arc/vga2arc.htm#acvid)
howdy Loz and Viletim , new pics tell me your thoughts...........
(http://img66.imageshack.us/img66/1048/n64boostbeforewq0.jpg)
(http://img66.imageshack.us/img66/9961/n64boostaftergv9.jpg)
http://members.optusnet.com.au/eviltim/vga2arc/vga2arc.htm#acvid
is that your Website Viletim ? its phenomenal i use it often its quite handy
ive looked at that Circuit before and its quite clever , i can build that but may look into getting a online Prototype PCB place to assemble and build it. It would be my first attempt at getting a Builder and Assembler to make a PCB.
http://www.screamingcircuits.com/
i might try the NTSC Nintendo 64 RGB Booster first its a simple PCB i can knock up in about 1hr , few parts to order and solder.
s8n
Quote from: s8n on July 29, 2008, 12:55:56 PM
http://members.optusnet.com.au/eviltim/vga2arc/vga2arc.htm#acvid
is that your Website Viletim ? its phenomenal i use it often its quite handy
Thanks!
Quote
i might try the NTSC Nintendo 64 RGB Booster first its a simple PCB i can knock up in about 1hr , few parts to order and solder.
You could do that, but it'd be a waste of an hour. You need a voltage amplifier, not a current amplifier.
roger that Viletim , im heavily looking into getting a PCB prototype to be built online. I have the app PCB Artist and am teaching myself to use it.
thanx for all tips matey youve been phenomenal , btw are you from Australia ? i am i thought you were aswell due to your site being optusnet.com.au
s8n
Quote from: s8n on July 30, 2008, 09:54:59 PM
roger that Viletim , im heavily looking into getting a PCB prototype to be built online. I have the app PCB Artist and am teaching myself to use it.
You don't need to make a PCB. You could built it on some cheap prototype board.
BTW, I recommend leaving out IC3 and related components unless you really seperate horizontal and vertical sync.
Quote
thanx for all tips matey youve been phenomenal , btw are you from Australia ? i am i thought you were aswell due to your site being optusnet.com.au
No problem, and yeah, I'm in Sydney.
your right yeah , ive built the LM1881N circuit about 4 times and have about 1/3 of the parts needed for the Video Amplifier. But by the time i order more parts pay shipping it will probably work out about 100 AU more , i think thats great plus if i can get it working id like to release the Schematic or final .PCB file on Killercabs to help the guys out there.
roger that on IC3 and related components , thanx for that tip matey........na i just need LM1881N generated Composite Sync Out
ill prolly be up till early morning on the weekend learning PCB Artist , i dont want to waste another second im hanging to play Dreamcast or PS2 or GC on the Cab with proper colors and brightness/contrast. GC and DC are not too bad with my hand built Console Jamma Converter but PS2 could be much better (colors and brightness/contrast)
s8n
Quote from: s8n on July 31, 2008, 02:07:57 PM
your right yeah , ive built the LM1881N circuit about 4 times and have about 1/3 of the parts needed for the Video Amplifier. But by the time i order more parts pay shipping it will probably work out about 100 AU more , i think thats great plus if i can get it working id like to release the Schematic or final .PCB file on Killercabs to help the guys out there.
$100 or more??? Parts should cost far less than that, even if you buy them all from Farnell.
As for a PCB layout - I've already designed one. It's available for download on the page in both Protel (australian defacto standard) format and printable PNG image format.
bonjour Viletim , i have checked out your PCB Layout and other bits at the bottom of the page and the more i check them out and learn PCB Artist the more i realize how brilliant your designs are. If its ok im thinking of sending your .PCB Protel file into a PCB Manufacturer , but unsure if the non removal of the IC3 to seperate horizontal and vertical sync will mess up things ........ie i dont need to seperate the syncs all i need is the generated Composite Sync from the LM1881N , i will then connect that (generated sync) to the Video Sync on the Arcade Machine.
buzz me Vile
s8n
Or you could make some BNC adapters and use something like this:
http://www.extron.com/product/product.aspx?id=pa250&search=pa%20250
I have one of these and they work wonders! You can double RGB Vp-p from your consoles and have a better CSYNC or H/V Sync output to your arcade monitor. There's also a "peaking" adjustment to sharpen the picture.
I had to run the RGBS output from a Street Figher: The Movie arcade board through one of these to get a stable sync on my PVM-2030 (image was wonky/rolling without it).