When iturn on my Sony STR-DE325 it goes into protect mode

Repair the damaged amplifier.

I just got mine to work with the STR-DE325. I programmed my Dish receiver remote following the reference in the back of the Dish receiver manual. I missed the comment at the beginning of the receiver codes at first which stated to enter a 2 before setting a tuner/amplifier code on aux. I then used the first code listed which was 683 and it works. So it was hold aux on the remote, wait until the aux was enabled by blinking, enter 2, enter 683 for the Dish remote and enter pound. E. LaPierre

http://www.retrevo.com/support/Sony-STR-DE325-Receivers-manual/id/387bh941/t/2/

See page 17.

Disconnect all speakers and see if that helps. Shorted speakers or wiring will cause this. If it still does it a trip to a hands-on tech is called for.

When the speaker wires shorted to each other, the output transistors for that channel probably shorted as well. This means that the receiver needs repair. The typical parts cost for this usually runs between $20-$40.

Dan

Audio Amplifier IC damaged

Hold in power button until unit "clicks." Takes about 20 seconds.

you probly have speaker wires arching. unplug them and replug thm in making sure no bare wire is showing

You've blown it. It recognizes a potentally harmful situation and goes into protect mode.

You are right! There's a good chance you BLEW IT UP, so to speak! But there is hope... [Note: There are no fuses on this unit, inside or out. There IS, however, an internal overload protection system designed to prevent permanent damage. With no disrespect Sony, it is not a very ample system. That is, it simply doesn't do its job very well. However, there is a CHANCE a reputable service center can reset it, but don't get your hopes up.] But before you take it in for service, it is also a REMOTE possibility you will get lucky doing one of the following: FIRST, what happens when you DISCONNECT ALL OF THE SPEAKERS? Does it still go into Protect mode? (If it does, it's time for service.) If not, then you might simply have a bad speaker (rare); a shorted wire; or improper speaker impedence: The NEXT STEP, then, is to make certain ALL of your speakers have an IMPEDENCE of 8 OHMS. Virtually all speakers of even modest quality will include this specification on a label on the back of the speaker. You CANNOT run more than (2) TWO speakers with 4 OHMs impedence on ANY amplifier (technical discussion too long!) Finally, in switching your speakers around for the party, and then again afterwards, you may have crossed a wire; ran a staple through one; or have bare wires touching at one (or more) of the speakers. Check first for bare wires touching one another. This would put your Sony into Protect mode the instant you turn it on. If everything looks okay at the speakers, then reconnect them to the receiver, and test them ONE AT A TIME. For example, reconnect the left front speaker, test the system; THEN add the right front, test the system, and so on, ADDING one more speaker each time - FIRST MAKING SURE EACH OF THEM HAS AN IMPEDENCE OF AT LEAST 8 OHMS! IF there is a short (or bad speaker) this will help isolate it. Assuming the unit powers-up without speakers, then one of these simple fixes might prove worthwhile! GOOD LUCK!