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Title: Ceronix 2093 missing gun (Blue or green?) on startup Post by: racergiant on September 16, 2008, 04:01:11 AM Started by hoppy -
Hi my GK has a gun problem on start up . screen jump in and out of color then settles down ok after a few minutes. I think its the blue gun as I would expect the screen to go to a purple colour if the green gun had failed I take it this is the start of futher faulting to come. Is there an easy remedy, ie a faulty capacitor, If so where should I look for it . When it is going the color purity tests from the screen menu are great. The screen had settled before I could access the test menu Thank you for your replies. Title: Re: Ceronix 2093 missing gun (Blue or green?) on startup Post by: racergiant on September 16, 2008, 04:01:30 AM By Habu -
I would suspect a bad solder joint on one of the video PRAs or the CRT socket. Bruce. Title: Re: Ceronix 2093 missing gun (Blue or green?) on startup Post by: racergiant on September 16, 2008, 04:01:48 AM By hoppy -
Thank you. sound like good solution for the problem. Will let you know how I get on later in the week. Title: Re: Ceronix 2093 missing gun (Blue or green?) on startup Post by: racergiant on September 16, 2008, 04:02:19 AM By ESDAVE -
hi if your blue was at fault you would have a yellow picture, look on the neckboard/tube base for dry joints . check the R/G/B cathode voltages should be about 90volts but it can be a bit higher or lower it depends on emission/ life of crt , if you need more info please let me know. esdave uk engineer. |