Onkyo ts595 goes into protect mode with volume increase

Hello, the most used buttons can wear out over time. On/standby and volume are the ones that are used most often. I suggest purchasing a new remote. It is available at shoponkyo.com. Thank you, Onkyo USA

This is a piece of **** receiver. Ive had the same problem since it was brand new.

How do I reset my amp / receiver from protect mode ?

Shorted speakers can cause the unit going on protection mode (the red light blinking) when a certain volume is reached.

Test with a set of replacement speakers.

If it is not the speakers, it is probably transistors in the amp final or something nearby. Test also input output board.

There's a fre service manual here, you need to join tte site (free)

Onkyo TX SV727 Manual AV Control Receiver HiFi Engine

Generally, this happens when there's a loose connection somewhere, either internally, or with the connections. It usually happens when the volume's too loud, and it tries to protect itself.

I'd suggest you unplug everything from it, check all the speaker wires, and then try turning it on, without any devices connected to it.

If it works, turn it off, and reconnect devices, one by one. That should fix it.

If not, it's likely that there's a loose solder inside, and it needs to be sent out for service.

Just check your speaker cabling again. Make sure that all of them are seated properly, none is touching each other or the body of receiver. Rewire if necessary..
Are you using banana plugs for connecting speaker or just directly. Some times even a little tiny wire touching the receiver could trigger the protect mode. Be careful, since protect mode is sometimes not fast enough and it could blown a few trasistors in the power circuit.

Otherwise, do your bose speakers play out load on other systems?

Hello.You have shorted audio outputs. One of your channels has shorted output transistors. If your unit uses output ICs then one of them is shorted. Both types ( individual transistors or ICs ) are located on the large finned heat sink. The parts are available from http:\\www.tritronicsinc.com. good luck

barneyluc

Hold the VCR/DVR button in and press the ON/OFF Standby button. The display should briefly read CLEAR and then the unit switches off. If that clears protect mode, you'll need to redo the Audyssey and configuration setup as these will have been cleared by the reset.

The problem here is that the output amplifier section has a problem. This is detected internally and the system shuts down in a "protect" mode. The output section really only kicks in when you attempt to bring up the volume. Another possibility is a problem in the "front end" where DC current is being passed to the amp section. Without takeing measurements, it is difficult to determine the exact cause. This should be a relatively stright-forward repair for a service shop and should cost about $20-$40 in parts plus the local labor charge.
Dan