bought this set new when it was king about 7 years ago i think, zero problems up until last night. Turned it on no sound , great picture no sound . tried resetting direct tv box no help. unplugged hdmi cord on back of set and plugged into another set and sound came on. figured the 52 was toast, plugged it back in this morning and the sound was back ! Anyone know the cause / fix ? thanks
HDMI is notorious for having connection issues, try using RGB connections. it will give you the same picture as HDMI. Then see if it still has sound problems.