Question about Sony STR-DE545 Receiver
Hi! I've been having the same problem as others have been posting with the rear speakers going out and, shortly after that started, the unit periodically goes into "protect" mode. Turning the unit off and then back on seems to solve that for now. It all started after I moved the amp into a cold garage for about 3 days during a remodel, so it's likely that the temperature change affected the connections. I opened the case, straightened some transistors, and separated some things that I thought probably shouldn't be touching, and they came back on. However, the "solution" was short-lived. Also, the unit has also always produced a little hiss. I'm interested in trying the solution that worked for you, but I'm a novice at this. With that said, can you provide a little more instruction on how to go about it, or is it probably better just to bring it to a repair shop and let them try? Thanks in advance!
The symptoms seems very likely that the solders on the PCB have cracked. These are the solder on the contact points with the "Blue Relays". Removing the various small boards and pulling out the main board is relatively easy. But to solder, you need the soldering gear and skills. If not done carefully, the whole board can be ruined. Taking it to a small repair shop and getting it soldered will be a better option.
Posted on Jan 10, 2009
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Posted on Jan 02, 2017
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Apr 07, 2012 | Sony STR-DG800 Receiver
No sound or only a very low-level sound is heard from the rear speakers.
>>> Make sure the sound field function is on (press SOUND FIELD - MODE).
>>> Select a sound field containing the word "cinema" or "virtual" (see pages 28-30).
>>> Adjust the speaker volume (see page 19).
>>> Make sure the rear speaker size parameter is set to either SMALL or LARGE (see page 17).
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