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Spent a few hours this afternoon poking around. Decided to get the set at least somewhat electrically working before tackling the cosmetics and rust. That way if a showstopper crops up, all the time wire wheeling and cleaning won't go to waste.
The set certainly appears to be a 9T241, not an 8T241. Have found several differences in chassis layout and component values between my set and the Sams 74-8 which covers 8T241. Does anyone out there have a copy of the 9T241 schematic/service data? A few minutes Googling turns nothing up, and I cant seem to find a Sams listing either.
Ran a quick ohmmeter check on the power transformer, and found that the transformer is good, but the on-off switch isn't. It feels fine, clicks nicely, but is stuck open. Will put that one on the back burner for now, and just jump with a cliplead for initial powerup. Ohmmeter checks on the flyback, focus coil, and yoke are also encouraging. The power supply bleeder/voltage divider string is hard to say, as the circuitry is quite different from my schematic.
Started compiling a capacitor order list, to get the caps I don't have in stock. Am not even going to apply power to the set until at least the power supply filters are replaced. Will probably replace a few of the crummier looking paper caps before then, including the micamold line bypass caps which test incredibly leaky even on a simple DMM test.
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11-10-2013, 02:25 PM
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