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| | |-+  Ceronix 2093 missing gun (Blue or green?) on startup		 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: Ceronix 2093 missing gun (Blue or green?) on startup  (Read 6045 times)
racergiant
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« 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.
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racergiant
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« Reply #1 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.
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racergiant
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« Reply #2 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.
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racergiant
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« Reply #3 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.
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