THE GOAL HEAR IS TO DETERMINE IF THE INSTALLATION IS CAUSING YOUR PROTECTION FAULT OR IS IT THE RECEIVER ITSELF HAVING INTERNAL DAMAGE. REMOVE THE RCA INPUTS AND DISCONNECT THE SPEAKERS, THEN POWER THE AMPLIFIER UP WITH THIS NO INPUT, NO SPEAKER LOAD CONDITION. IF IT STILL GOES INTO PROTECTION, THEN THE RECEIVER WILL NEED TO BE SERVICED, AS YOU HAVE TOTALLY SIMULATED A BENCHED CONDITION THAT IS TOTALLY INDEPENDENT OF YOUR INSTALLATION. MOST TIMES, THE RECEIVE WILL GO INTO PROTECTION WHEN IT SEES AN EXCESSIVE LOAD WHEN TURNING UP THE VOLUME, WHICH IS USUALLY CAUSED BY TOO MANY SPEAKERS OR DAMAGED SPEAKERS, BUT IF NO SPEAKERS CONNECTED, THEN IT IS USUALLY BECAUSE THE RECEIVER SEES AN EXCESSIVE LOAD DUE TO ITS OUTPUT SECTION BEING DAMAGED. IN ANY CASE, ONCE REPAIRED, YOU MUST CHECK YOUR SPEAKERS FOR BURNED VOICE-COILS, WHICH WILL IMPOSE AN EXCESSIVE LOAD TO THE AMPLIFIER AND CAN CAUSE IT TO FAIL AGAIN. ONE SCENARIO HERE, IS THAT YOUR RIGHT SPEAKER IS SHORTED, THEREBY MAKING THE RECEIVER GO N AND OUT OF PROTECTION AND THE CONDITION OF THE LEFT SPEAKER IS UNKNOWN. THE OTHER POSSIBILITY IS THAT THE RIGHT SPEAKER HAS FINISHED BURNING UP AND IS OPEN, LIKE IT IS NOT EVEN CONNECTED AND THE LEFT SPEAKER IS IN THE PROCESS OF BLOWING AND IS THE ONE PUTTING IT IN AND OUT OF PROTECTION. AT ANY RATE, YOU REALLY NEED TO VERIFY THAT THE SPEAKERS VOICE-COILS ARE OK. I KNOW YOU SAID THEY WERE FINE, BUT YOU NEED TO REALLY CHECK THEM CLOSELY. YOU CAN USE AN OHM-METER TO CHECK ONE SPEAKER AGAINST THE OTHER FOR COMPARISON. WHILE NOT TOTALLY ACCURATE, IT WILL BE CLOSE ENOUGH TO DETERMINE IF THE VOICE-COILS ARE DAMAGED, SHORTED OR OPEN. AN 8 OHM SPEAKER WILL SOMETIMES READ A LITTLE LOWER THAN 8 OHMS, USUALLY AROUND 7 OR SO, BUT NOT LESS THAN 6. ALSO, DO CHECK THE SPEAKER WIRES THEMSELVES FOR BEING SHORTED OR PINCHED SOMEWHERE. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V
166 views
Usually answered in minutes!
×