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Sony 27" CRT KV-27TS27 has dim green, can't seem to bri

 
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patch6
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PostPosted: Thu Mar 22, 2007 11:06 pm    Post subject: Sony 27" CRT KV-27TS27 has dim green, can't seem to bri Reply with quote

I tried to adjust the controls on the CRT's circuit board, and also dimming the other colors so that green would look bright in relation, but the color seems dullish still, when comparing this tv's color test pattern to one on a good monitor.

Wondering what can be done about this. Is a CRT rejuvenation of some sort needed?
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minnie



Joined: 18 Aug 2005
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PostPosted: Fri Mar 23, 2007 11:51 pm    Post subject: Reply with quote

The CRT is junk.
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PostPosted: Thu May 10, 2007 11:06 pm    Post subject: Reply with quote

I managed to give it new life by adding a wire in series to the H1 (heater) pin, that was coiled once around the flyback transformer's metal core. I had to cut out a little space between the copper trace next to that pin to do that with, but now the image looks like new after following the color calibration at h**p://www.stevelarkins.freeuk.com/tv_grey_scale.htm!

Previous to that, the green color would look a few shades too dark, regardless of how the colors were calibrated.

So much for it being junk.
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roadkill
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PostPosted: Fri May 11, 2007 9:52 pm    Post subject: Re: Sony 27" CRT KV-27TS27 has dim green, can't seem to Reply with quote

patch6 wrote:
I tried to adjust the controls on the CRT's circuit board, and also dimming the other colors so that green would look bright in relation, but the color seems dullish still, when comparing this tv's color test pattern to one on a good monitor.

Wondering what can be done about this. Is a CRT rejuvenation of some sort needed?

I take it you don't have access to a tube checker/rejuvenator? Did you look to see if the crt board has good solder joints? that can cause a lot of different problems.
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