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Onkyo tx-sr500. No output to surround speakers. Have verified that speakers and wires are good. What can I do? Right speaker went out firs and then left a day later.
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This indicates that the system is going into protect mode. First disconnect all speaker wires (with the power cable disconnected). Then turn the unit on and see if it sill shuts aff ofter a few seconds. If it does not, then you have a problem with the speakers or speaker wires. inspect the wires at both ends for frayed strands that may touch. If that all lookd good, plu the speakers in, one at a time, until the problem reappears. Be sure to turn the sytem off before plugging in any speaker just to prevent any accidental short which could be catastrophic. If the system goes into protect mode with all speakers disconnected, you probably have a shorted output transistor.
The symptom you described can be caused by any number of things. I always start with the output power transistors which are the first things to blow with a speaker output overload condition. Unplug the power cord to your unit, remove the top cover and use an ohmmeter to check resistance from C to E on all 10 of the power transistors (Q6050 thru 54 and Q6060 thru 64) attached to the large heat sink. Blown transistors typically read <1 ohm, compared to good transistors that are >10k ohms. If you find a bad transistor it will need to be replaced.
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.
Hi,your fears are confirmed... the protection circuit is self resetting, and is operating because the amp will most probably have blown that channel as a result of the speaker wire short. At the risk of doing more damage(in the workshop,we always soft start an amp with output problems to prevent more damage)you could take the lid off, check and replace any blown fuses, be sure to use the same rating and type. If the problem persists, or the fuses fail again, it needs some expert attention. Off to the repair shop.... Good luck, and thanks for checking with FixYa
I just read over the problem you were having with your Onkyo TX-SR500 receiver. It sound like the unit needs to be setup for all five channels.Sence your symptom says the diplay shows Dolby D3/2.1.
According to the owners manual with the remote control look for speaker setup whin the button is pressed the current speaker setup will be shown in the display. Press the preset/adjustment<> to change the current setting to five speakers. the listening mode will automatically change according to the number of channels you selected.
Hope this helps.
Radiotech
So your saying that you have no rear channel. Some recivers use a single stereo output ic for both sides on the rear speakers. you could have a defect with this IC . Anther thing Im sure you check3ed the obvious ie : the switch is on suround sound? If there is a front to rear fader is it in the middle? Good Luck
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