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most
cooling fans in receivers only come on when they are needed. Some turn on at higher volume levels, others will not turn on until the unit gets too hot.
Most likely, you have DC Offset(a bad amplifier). The unit is shutting down to protect your speaker system, as well as protect the unit from any further damage. If you require more assistance, or would like to inquire about repairing your Onkyo, please visit my website at audioserviceclinic.com. You may contact me there. Thank you.
Might be over heating. Make sure you don't have anything sitting directly on top of it. I even put a little fan blowing outward at the back of my system to keep it cool.
This unit is in protect mode. This means that a problem was detected and the unit has shutdown to prevent further damage. The most common cause of this is failed output transistors. Plan on $20-$40 for parts for this repair.
I have the same receiver and the way to fix is simple. in the main board of this unit there are 5 connectors and they slide into other components like Lego. the issue is the king of material they are made of it's cheap. if you reseat the mainboard it will fix it for a day or two, them it will start again. the easyway is to re seat the board and put a fan inside of the receiver between the transformer and the inside of the amp pointing down about 20 degrees connect the fan to a ajustible voltage adapter and connect it to the outlet in the back of the unit. so it comes on when you turn it on. this voltage adapter is cheap. the adapters people buy for phones and or MP3's at Radio shack or Best buy it goes from 1.5v to 12 volts/ this way you can control how loud the fan is in side the receiver. i find 4.5V does the trick. The connectors on this board start to loose contact with some of the pins when heated. the fan keeps it cool enouth to fix the issue. I fixed manny these ONKYO 804's this will fix it. you just have to do it. the main board is inder the HDMI board in a Vertical position running from one side to almost the Power supply. it has 2 screws also holding it in the inside middle back of the amp. Becarefull with these amps 75 V at 23amp's DC is no joje leave it off for a couple of hours to satart working on it. Good luck.
hi, when the unit shuts off by itself, it means that the protection circuity inside has been activated. it can be a problem with the receiver itself or it is just detecting something hooked up to it that can cause possible damage so it shuts off.
you would need to disconnect everything from the back and by itself, try to turn it on, see if it will stay on and then crank the volume way up to max. if it stays on, the receiver is ok and you then need to rehook your devices one by one starting with the speakers until you determine the one causing the receiver to shut off.
however, if the receiver shuts off and won't turn on even by itself, it means that the problem is internal and it either has to go back to your dealer for an exchange or it has to be sent to a repair center for servicing.
1. An electrical problem, where your receiver has a grounding problem. 2. Your speaker wire connections are actually touching each other and that's why your receiver is not turning on.
1-disconnect subwoofer first and test-and then disconnect surround speakers-and front speaker after-and later center speaker.ever time you disconnect you check the operation until you find the bad one(or two)which make the problem change its cable first and then change speaker itself.if all above failed contact the service center.
Several things can cause this: Loud signal passages can momentarily draw high currents at the mains, especially if you have unit plugged into power stripe with other equipment. Or if unit is plugged into isolation transformer, current draw may exceed output of transformer. Too many speakers hooked to output or if one is bad (partially shorted due to overheating)
Classified Memory Function. The memory can be divided for different users or programs of stations.
How to classify stations. With this model, six classes (Class A to F) are available and stations can be memorized in any class. A total of 30 stations can be memorized in any class. A total of 30 stations can be memorized.
1. Tune in the desired station.
2. Press the MEMORY button. The MEMORY indicator will flash for 8 seconds.
3. Press the desired Classified Memory button (one of buttons A to F). The station is memorized in the selected class with the memory number which is the smallest of the unoccupied numbers in the class.
By repeating the operations above, up to 30 stations can be memorized. Any more will produce "FULL" notice.
How to cancel memorized stations:
Retrieve the class number you want to cancel and then press the MUTE/MODE button while holding down the MEMORY button. Another station can be memorized with the memory number which has been cancelled.
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