Console to Arcade Monitor , doesnt have that vibrant color look and brightness

[s8n]

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...........






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

[NFG]

Your pics don't show up, mmmonkey is blocking hotlinked requests, by the look of it.

[viletim]

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

[s8n]

howdy Loz and Viletim , new pics tell me your thoughts...........







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

[viletim]

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!

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.

[s8n]

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

[viletim]

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.

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.

[s8n]

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

[viletim]

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.

[s8n]

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

[RGB32E]

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).