Sanyo 35" CRT Mod # DS35590.
PROBLEM: No pic or sound, only the steady, high-pitched whine. Not very loud. Only unplugging the set stops the noise. Power button ineffective. Used small tube-in-ear stethescope method to find sound - sound is from transformer nearby, for sure. This is NOT the FBT, it's the other one. Main power T'former I suppose. HOT tested bad. So i know I need that. Checked solders. No bulging CAPS. Gut says replace FB & HOT and run with it. BUT, is transformer noise related? Please advise. Thx. Kevin.
UPDATE!!! Just swapped out bad HOT for known good one (different spec's, from a 32" toshiba crt, but a good HOT). Result is that the high-pitched whine from the T'former turned into a rapid 'tick' or 'click' sound and at relatively the same volume. Probably 30 cycles/ sec. Does this help? Is this transformer a problem with it alone, or is it brought on by failed HOT and/or FBT. I need to know what else to check. Don't mind replacing HOT and FBT, but don't wanna miss anything either. Thx. Kevin.