Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: mammoth on March 22, 2005, 09:05:47 am

Title: monitor testing on bench
Post by: mammoth on March 22, 2005, 09:05:47 am

 any idea on setting up a cheap and easy test bench for monitors- (mainly cga) - I have many misc. parts to build from i.e old boards. iso transformers, ect. also would like it to produce cross pattern to get convesence close.

Title: Re: monitor testing on bench
Post by: MonitorGuru on March 22, 2005, 09:29:41 am

Find an old Commodore or Atari RGBA (analog RGB) 13" monitor from their Amiga/ST lines (e.g. 1902/2002/1080 on commodore and I forget the Atari model #'s) and then make an adaptor to go into the analog RGB port.

They sync at 15.75KHz and have built in isolation.  Quick, easy.

For crosshatch/color, pick up a really cheap JAMMA board off of eBay. Even one that doesn't work but ask the seller if it will work in test mode.  Run thru a few games in MAME and test out their test modes to see which ones produce the best monitor patterns for you. 

Title: Re: monitor testing on bench
Post by: mammoth on March 22, 2005, 09:37:09 am

hey- i'm old but even i don't have any more 13" games are you saying use something like an old missle command board or what-don't quite understand.