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Old 04-11-2024, 12:17 PM
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Electronic M Electronic M is offline
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Join Date: Jan 2011
Location: Pewaukee/Delafield Wi
Posts: 15,473
Quote:
Originally Posted by Chris K View Post
Are there 2 tuning dials for channel selection in various models of this tv? The brass gear on the back of my tuning dial stripped out at some point in its lifetime and I replaced it with the dial from my parts chassis and the 2 dials are completely different. The tv I’m servicing has the stripped gear and ascending channels when it’s turned clockwise. The parts chassis dial is the opposite…ascending channels when turned counterclockwise. I cleaned the tuner and the picture is so much better. Thought I was home free on this one
Not 2 but 3! There's 2 round dial RA-103s and a square dial. I've never owned a square dial but I have owned the other two. Yes one dial goes clockwise and the other counter clockwise. As I understand it the more common early round dial uses the tuner shaft for the knob shaft...which is bad since the portion inside the tuner is ceramic and tends to break if the user knob gets stuck on pressed on too hard. The later sets fixed that by using a separate knob shaft geared to the tuner shaft but at the expense of making the dial spiral the other direction and having to rotate the tuner superstructure 90 degrees.
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