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CTC-16 Tint issue
Hey guys, well I noticed lately the tint control is cranked all the way to green, and now it's at full tilt, the faces have been getting more and more pink. Thinking it's a demod or chroma burst issue, I swapped out the tubes, issue got worse with good ones, alot of reds and blues were way off but green was ok.. The original tubes are not really that bad, a little weaker than the NOS tubes I bought. What would cause this and has anyone had these issues before? Thanks
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Quote:
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How does the B/W picture look? If ok, then I would center on the 3.58 osc circuit next. Try this. Center your tint. Ground pin 2 of V703B 3.58 Osc tube. Adjust L702 reactance control coil for minimum # of vertical color lines/bars. Remove ground. Tune in a show of known good color quality. Set the tint control to midrange, adjust T703 3.58 Osc Trans for correct tint. Assuming you are successful, it gives you a place to start how far/fast the set is drifting. If you're lucky, you won't have to bother with it for a long time to come. Let us know how it turns out.
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This sounds like it should be fairly easy! Thanks for the tip guys! I'll give it a shot!
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Audiokarma |
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basic troubelshooting
Remember always check the basics, make sure you have good gray scale, if you have a color bar generator, make sure both demodulators are working. Rca did have a problem with coils going open in that series ctc 12 ctc 16
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