My denon AVR 681 turns on for a few seconds then immediately goes into standby, attempted to reset by holding in on speaker a and b as instructed with no luck, any other suggestions? This unit is a few years ols, but I purchased it and only used it for a couple of months when this happened. It is practically brand new...Please help me!!! Billy G
Audio Players & Recorders - Denon - AVR-681 Receiver
Answers & Comments
Turns on for a few seconds then immediately goes into standby, attempted to reset by holding in on speaker a and b as instructed with no luck, any other suggestions?
A very obvious evidence shows there is a DC coming out of the speaker terminals.
https://www.hifiengine.com/manual_library/denon/avr-681.shtml?_e_pi_=7%2CPAGE_ID10%2C1610027943
first download service manual.
check any DC voltages developed at the speaker
output terminals. Differential amps got damaged ,shorted, are common. Check for any shorted transistors of pre-amp stage which amplifies voltage.
This is DC Protect not over current protect.