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I've tried tube changes several times. I checked all of the resistors in both the horizontal and vertical circuits and replaced the ones that were even close to being out of spec. The caps have all been replaced and I even pulled the mica caps and tested them. Most were OK but the ones off value and leaky were replaced with 1% mica caps of the same value. I don't think this is component based...it's adjustment based and I've been trying for days. Does anyone know where to start other than the horizontal hold control set to the middle? I have the Riders service manual that gives a great description as to what the drive and lock in the circuit do but there's no technique described as to how to start the process of dialing in the horizontal from jump. I followed the Sams description of oscillator and lock setup but to no avail.
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