Hi,
I need some advice. My local authorized Toshiba repair store replaced my Green projection tube because it was arcing. Now my color balance is off, and the picture just doesn't look as good as it did before. I asked if it was because the new green tube was newer than the other two tubes and the repair tech said no. He wants to come back out with the service manual and some test equip and adjust the set further. Is this going to help?
Thanks, Don
Probably better than beating it with a hammer.
The new CRT will look a lot better than the other worn ones, it also depends how many hours the unit has on it, but he should have set it up to the best greay scale, & levels of G 2, as well as checked the EEPROM for the ABL level. Having said that, it's not going to be great, but it should look acceptable. Dani
snipped-for-privacy@sbcglobal.net wrote:
Of course the new CRT will be stronger than the older ones. It is likely that it will be impossible to get good gray scale but this depends on how worn the other two CRTs are. The tech should have checked the emission level on the tubes and checked the condition of the phosphors and warned you of this possibility before changing the CRT.
It is possible that the older tubes can be restored to bring the emission level up and/or the set can be aligned to proper gray scale with the available adjustments. It will take a tech that knows what he is doing, however, and it sounds like the one you have might not. Any tech that would not anticipate this situation is simply in over his head...
Post the model number. Someone might have a used tube that would match better.
Leonard
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