Hi
My denon AVR-X3300W amplifier is going to protection mode.I checked all the power darlington pair transistor and no short circuit.
checked all the components in the main, amp boards like diodes, resistors etc
all are fine.
Then i found the IC regulator 7808 and 7805 are getting too much hot, this is used to supply 5vdc to the pre amp board. so i remove the pre amp board and then the amplifier stays ON an no more heat up in the IC regulators.
checked and replaced the diodes in the Pre amp board, still no success.
Please advise.
My denon AVR-X3300W amplifier is going to protection mode.I checked all the power darlington pair transistor and no short circuit.
checked all the components in the main, amp boards like diodes, resistors etc
all are fine.
Then i found the IC regulator 7808 and 7805 are getting too much hot, this is used to supply 5vdc to the pre amp board. so i remove the pre amp board and then the amplifier stays ON an no more heat up in the IC regulators.
checked and replaced the diodes in the Pre amp board, still no success.
Please advise.
It would be handy if you could provide a circuit diagram.
If both IC,s are getting hot then you have a short circuit somewhere .
Thats actually a help as its easy to locate a short unless its one of those computer chip amps.
If both IC,s are getting hot then you have a short circuit somewhere .
Thats actually a help as its easy to locate a short unless its one of those computer chip amps.