Question about Onkyo TX-SR875 Receiver
Don't know why and can't figure it out, but my reciever shuts down randomly after about and hour or two of use. Have had the reciever for about a month. It is not overheating as it is sitting on a shelf by itself.
This answer is generic to most sound system amplifiers:
Check to see if the speakers are too low impedance for your unit. For example, if you have 4 ohm speakers and the system is rated for 8 ohms only, it can go in to protect mode (shut-down). If you are running 2 sets of speakers at the same time, and the total load impedance is equal to less than the spec of the amplifier, this can cause a safety shutdown.
The output stage power devices (transistors or IC's) can be going over temperature. This you will not be able to feely with your hand unless it was extremely severe.
It is possible that there is a component(s) that have become thermo sensitive, and when reaching normal operation they go out of specs. It is also possible that there is a cold solder connection and with thermo expansion from the normal increase of temperature, there is a loss of contact and the amplifier goes in to protection.
One other thing I have seen, is where the customer uses the amplifier excessively loud where there is some distortion. This causes some clipping in the sound. Sometimes the distortion can be very low to the point where to the listener the sound appears to be clean sounding. After some time, the amplifier will be triggered in to protection. If this is the case, you need a higher powered amplifier, or more efficient speakers, and or both.
You should get this checked if your connections to the speakers are compliant to the spec of the amplifier.
Posted on May 04, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Aug 29, 2010 | Onkyo TX-SR606 Receiver
Jul 31, 2010 | Pioneer VSX-D509S Receiver
Nov 14, 2009 | Yamaha HTR-5890 Receiver
Nov 03, 2009 | Technics SA-EX600
Jul 25, 2009 | Yamaha HTR-6030 Receiver
May 29, 2009 | Sony STR-V444ES Receiver
Apr 23, 2009 | Yamaha RX-V757 Receiver
Dec 31, 2008 | Denon AVR-3600
Dec 30, 2008 | Onkyo TX-DS777
110 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: