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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Problem with 1976 RCA ColorTrak XL-100
Wanting an older TV just to play video games on, I bought a 19" RCA
ColorTrak XL-100 TV set, manufactured May 1976, model number "FA 488 TR". I tested it before I bought it, and it picked up air signals just fine. However, there's a problem: When I try to connect my consoles, the picture won't appear -- there's just gray static. I connected my Sega Master System to the TV in the normal fashion (there's a coax input), and turned it on. The sounds I expected to hear were crystal-clear, but the picture is messed up. (I could, however, make out some of the graphics I expected to see.) I'm not sure if the tuner is the issue, or what... I cannot tune to channel 3 or 4, because the electromechanical tuner always goes right past them. (After the dial passes 25, it skips 2, 3, and 4, and stops on channel 5.) What could I do about this problem? |
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Problem with 1976 RCA ColorTrak XL-100
I didn't even know there was another door that could be popped off,
until now. :-D Luckily, it's a single knob electronic tuner, so I just manually rotated the dial to 3 -- no harm done there, I don't believe. [I guess I keep forgetting that electronics used to be built to last. ;-)] Fine-tuning it was a breeze. I'm finally seeing what I'm supposed to see along with the sound, but the picture seems to be really muddy. It's not really a big nuisance, but what could I do to improve clarity? Thanks for your help, Jason L. If it's a keyboard tuner, the "select\lock" switch is probably broken. Without it, you can't memorize channels. If you enter the channel directly, you'll get the picture and no sound. If it's a "single knob electronic" type, you have to remove the front cover (rotate the RCA logo) and adjust the individual channel fine tuners with a small screwdriver. John Del Wolcott, CT |
#3
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Problem with 1976 RCA ColorTrak XL-100
I sincerely hope it's not a CTC74 or 81. If it's one of those then *good luck*
you're going to need it, not one of the fonder memories in this wonderful business. It would help if the original post would include the chassis number. It sounds more like a newer chassis by the symptom. Ron Also, if that is a CTC 74 or 81, the drive controls on the kine module are known to open. Spraying lightly with a contact cleaner will restore the operation, and pick up the picture considerably. John Del Wolcott, CT |
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Problem with 1976 RCA ColorTrak XL-100
The only one of these I ever Repaired had a similar problem and it was in
fact the Tuner. I sent in the bad one to PTS as a core, and they had a rebuilt one in stock for like $50 I think you would go by the Numbers on thewhite Sticker on your Tuner to see if they have any. Its possible they would still have it. "Jason L." wrote in message om... | Wanting an older TV just to play video games on, I bought a 19" RCA | ColorTrak XL-100 TV set, manufactured May 1976, model number "FA 488 | TR". I tested it before I bought it, and it picked up air signals | just fine. | | However, there's a problem: When I try to connect my consoles, the | picture won't appear -- there's just gray static. I connected my Sega | Master System to the TV in the normal fashion (there's a coax input), | and turned it on. The sounds I expected to hear were crystal-clear, | but the picture is messed up. (I could, however, make out some of the | graphics I expected to see.) | | I'm not sure if the tuner is the issue, or what... I cannot tune to | channel 3 or 4, because the electromechanical tuner always goes right | past them. (After the dial passes 25, it skips 2, 3, and 4, and stops | on channel 5.) What could I do about this problem? |
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