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I've replaced some caps but really don't see any change, color is still kicking in and has good b/w operation but color is just decoding as variations of pink (and green elsewhere if I totally overload the color control), and no tint control effect. Caps replaced were c126, c124, c727, c730, c725, c710, c703, c719, c707. On some channels the tint control DOES have a slight effect but just in the form of turning the color off at mid range and turning it back on at either end - it never changes any colors. So I know the tint control is good (also tested it with ohmmeter). I'm waiting for a 3.58 crystal just in case that ends up being the problem, till I swap that in I am not going to mess with it. And still have a leakage in the tuner tube which I am going to replace too but don't think it's causing this as b/w performance is great.
Should this oscillator be running regardless of anything else, i.e. should it be running all the time even if no color signal is being recieved or no antenna is attached? It should just be running if the set is powered up, period? Could something elsewhere in the color circuit be 'killing' the oscillator?
Good news - bypassing the thermistor in the power supply (which was further popping and crumbling away) really improved the set and the way it looks right now I dont' see why the set needs the pic tube booster on it. Was probably just a cheap fix for other problems (like this thermistor) with the set that the owner didn't want to pay for on an old set like this. This is what I suspected when the tube tested great on my tester too.
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