SOURCE: Power IC Damaged Displayed
if it displays "power IC damaged ,your CD player is as good as DEAD.
For giving it a new life ,take it to PIONEER SERVICE and get the IC replaced and any other repairs that may be needed.
Does the output relay click about 5 sec. after powering on? If it does check if the tape2/tape monitor is on. Check speakers and wiring. Try headphones.
There aren't any fuses for the output.
If no relay then it probably needs output transistors and a few resistors.
Usually answered in minutes!