I have two of these receivers and I still really like them. Unfortunately, one of them won't turn on. I have disassembled the receiver and tested all fuses. They were all good. The two little orange lights on the front panel of the receiver both light up but when I push the standby button, absolutely nothing happens. I have tried using the remote to engage the receiver to no avail.
It seems there are many different ways on the internet to "reset" a receiver- but none for the TX-SV515pro. Does anyone know if there is a way to "reset" my receiver? Perhaps the standby button is shot? Is there some way to test this?
I most likely won't bring this to a repair shop as reputable shops are impossible to find in my area.
Doubt that reset will fix your problem---but here it is if you want to try:
hold down the cd button and press the power button [at the same time]
test will [should] appear on screen for about 5 seconds--you need to unplug the set during this 5 second period. this resets the cpu chip.
hope it helps solve your problem.
I had the same problem with my Onkyo TX-SV515PRO. In trouble shooting I found that R921 resistor was open. This is a .47 ohm resistor. I replaced it and the problem was solved. The unit is now working as good as new.
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Unfortunately, the RC-771M remote doesn't control the TX-SR502. It will only work with these Onkyo models: TX-NR1008 and TX-NR808. The RC-567M is the one for the TX-SR502; replacement remotes that are exact replacements are still available from various places including Amazon.com .
Since the TX-SR502 was released in ~2004, that replacement remote probably won't control other devices that were released in 2004 or later. Onkyo changed its IR code programming before the TX-NR1008 was released in ~2010 and the RC-771M can't communicate with the older receiver. The manuals for the receivers listed above are still available from Onkyo on the product page under the Downloads tab.
The reference to Zone 2 means that your Onkyo receiver is set to be remotely controlled from another location. Normally, this arrangement would be initiated at the time of set up but could be done later. You may have to repeat the initial set up routine to get things back to normal
Failure of the the power source. To see if it's fixable the receiver will have to be opened and the power board tested . This job requires at least a basic experience in electronics - if you don't posses it all you can do is to look for a burned fuse or damaged capacitors. For them follow this
Your unit staying in standby mode is an indication that its having a power problem. Remove its plug from the wall and fix it back into the wall, then turn it on again. If its still stuck in safe mode, then the power supply board in the unit is the cause of the problem.
The power supply board might be defective and maybe that's why the unit won't power up. Its receiving power but it cannot transfer the current to the necessary part of the unit because a capacitor, diode, etc may have been faulty. Until these bad components are replaced, the unit might not come on.
To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter in order to test the components on the power board, once you detect any bad component, you can make necessary replacement at any electronics accessories store withing our vicinity. This is the only way by which you can detect the problem.
Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.