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Yea, beware of those sets with the SG613s. I had a KV1722 that was working on that lost the filament voltage to the CRT. Traced it down, found an open primary on the filament transformer. Thought this will be an easy fix. I put the circuit boards back in place, checked it all over, powered it up and poof, smoke. Guess what, both SG613s the Horizontal output and regulator SG613 are shorted. One more Sony bit the dust.
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