Assuming the TX816
is "vintage." Anyway, 30 minutes after powerup, the unit itself (not thru
audio outs) lets out a loud sustained steady high pitched tone- killer on
the ears. It is impossible to isolate exactly where in the unit the sound
originates, but it is coming from the physical unit itself. ; Powered unit
down, waited about 10 minutes and on powerup, all O.K. ; Then about 60
minutes later, same thing. Next day, been on for 4.5 hours so far- all
O.K.
Never got any error
codes, internal bats are all good. The power supply was just replaced on
unit.
Anyone have any
ideas on possible cause/remedy? Or is this a freak incident?
Anything else peculiar to these units to watch for?
My only guess is it
had just come in from the cold and a long UPS transit prior to powerup.
Maybe needs to acclimate?
TIA!