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Main => Monitor/Video Forum => Topic started by: RetroJames on December 30, 2004, 11:30:25 pm

Title: Discoloration on Monitor - Sharp Image SI-319S
Post by: RetroJames on December 30, 2004, 11:30:25 pm

I have a Sharp Image 19" color raster monitor in an omega race cabinet.

Title: Re: Discoloration on Monitor - Sharp Image SI-319S
Post by: Ken Layton on December 30, 2004, 11:53:03 pm

Probably needs to be manually degaussed.

Title: Re: Discoloration on Monitor - Sharp Image SI-319S
Post by: _Iz- on January 01, 2005, 02:32:16 pm

try removing the speakers...

Title: Re: Discoloration on Monitor - Sharp Image SI-319S
Post by: RetroJames on January 01, 2005, 03:57:36 pm

Quote from: _Iz- on January 01, 2005, 02:32:16 pm

try removing the speakers...

I had them unplugged

Title: Re: Discoloration on Monitor - Sharp Image SI-319S
Post by: Ken Layton on January 01, 2005, 07:33:03 pm

Unplugging the speakers won't stop the speaker magnet from affecting the monitor colors. If speaker magnetism is suspected of causing color problems you need to actually remove them from the cabinet and get them at least 4 feet away from the monitor. Then manually degauss the picture tube.

Title: Re: Discoloration on Monitor - Sharp Image SI-319S
Post by: RetroJames on January 01, 2005, 10:30:37 pm

As it is an Omega Race cabinet and I mounted the monitor as the original would have been, that is using the reflective mirror arrangement, the speakers are already at the top of the cab while the monitor is at the bottom.

I did use an amp from pc speakers andmounted the internals near the topofthe monitor.  You can see them on the upper left, the small pcb and what might be some magnets?

Also note the switch is for the monitor and I routed the power from the switch to the rear of the monitor across the area above the coindoor which is where the top of the monitor rests when mounted. 

Do you think it is possibly comming from one or more of those sources?

Thanks!

Title: Re: Discoloration on Monitor - Sharp Image SI-319S
Post by: Ken Layton on January 01, 2005, 11:48:21 pm

Could be that fluorescent light ballast is too close to the monitor. Try disconnecting that light fixture.

Title: Re: Discoloration on Monitor - Sharp Image SI-319S
Post by: RetroJames on January 02, 2005, 07:56:49 am

Quote from: Ken Layton on January 01, 2005, 11:48:21 pm

Could be that fluorescent light ballast is too close to the monitor. Try disconnecting that light fixture.

I did turn it off and tested again with same results.  Does the ballast have magnets in it as well?