Quote:
Originally Posted by old_coot88
That link is European, using entirely different nomenclature than U.S., and shows 5.5 mhz sound vs. the 4.5 mhz U.S. standard.
In U.S. vernacular, what needs to be established is whether the set in question uses the 'intercarrier' system wherein the 4.5 mhz sound carrier is taken off after the video detector, or
if the set uses the older, true true split-carrier having dedicated video and sound IF strips, split at the tuner output.
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True split carrier with completely separate video and audio if sections. The set is a 621ts. Here is a link to the schematic
http://www.earlytelevision.org/pdf/R...-Rider-TV1.pdf. I can share some photographs, but I don't know what to show? I can post a video to YouTube (hopefully tonight) that shows the issue.