Anonymous posted an answer for this Pioneer VSX-D711 Receiver:
"AMP_ERR means the unit is detecting DC on the output of one or more amplifier channels...."
Anonymous posted an answer for this Pioneer VSX-818V-K Receiver:
"If it flashes AMP_ERR, one of the chipamps is shorted & needs to be replaced."
Anonymous posted an answer for this Pioneer VSX-818V-K Receiver:
"Press TUNE+ & AUTO SURR/DIRECT keys continuously for 2 sec. and it will tell you the..."
Anonymous posted an answer for this Pioneer VSX-816-K/S Receiver:
"With the receiver off, press ENTER + ADVANCED SURROUND keys continuously for 2 sec. and it..."