Quote:
Originally Posted by KV-1926R
In regards to my 1982 RCA ColorTrak model FGR478WR: the DVD status indicator should be blue, but when I adjust for proper flesh tones that indicator takes on a slight purplish hue. IIRC, my 1987 Trinitron (not hooked up) does the same thing. I just wonder if it's normal for a set this age or if something needs to be adjusted. Also, I pulled the service switch out of curiosity and got a white horizontal line at first, but doing it subsequent times caused a totally blank screen. Jiggling it causes a green line to briefly appear. pushing it back in always restores normal operation.
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One of the first things I would do (in regard to the white line/blank screen problem) is clean the service switch. From the way yours is acting, I'd suspect it is probably dirty or perhaps worn. If you can get a good picture by pushing the switch back in, the contacts may well be tarnished. The symptom of a green line when the switch is jiggled will probably disappear as well once the switch is cleaned. If that switch hasn't been cleaned or moved since 1982, this is very likely.
BTW: The LED you refer to as a "DVD status indicator" may well be an indicator that shows when the tint (hue) control is set for proper flesh tones; it is possible the purplish color indicates the correct setting. However, since you said the correct color of this LED for proper flesh tones is blue, I would suspect a drifting resistor somewhere in the circuitry associated with the ColorTrak system. You might notice your set's tint control is somewhat off the center (normal) position when the LED shows purple; if this is the case, then there is definitely something haywire in the ColorTrak system or even in the 3.58-MHz chroma oscillator circuits themselves, since this control should be centered when the flesh tones are correct on the screen.