20 Most Recent Sony STR-DE445 Receiver Questions & Answers

Question edited heavily for clarity. Question moved from Office Equipment. Here is your fix https://us.community.sony.com/s/question/0D50B00004IL1K5SAL/how-to-handle-a-usb-fail-message-from-a-strkm3-that-has-no-usb-port?language=en_US https://www.google.com/search?q=Sony+STR-KM2+error+USB+Fail ..

mine does the same thing. I found a pdf of the manual and it said this in the troubleshooting section: ""PCM--kHz" appears on the display. , The sampling frequency is more than 48 kHz. Change the DVD setting to 48 kHz." I have my seiki tv hooked into the dvd/ld input through a coaxial cable, and I don't think my tv has a setting to change the sampling frequency. so I have no idea what to do. any help would be great!

Hi,
your problem is a bad solder connection of the relay linked to the lautspeaker sockets. I had the same problem and googled for the solution. Since I resoldered the pins everything is fine. That problem is well known and happens to a lot of Sony receivers.

I can send you a link with a detailed how-to-do solution with pictures, however it's written in german language. But you can use some online translators.

Here is the link: http://www.bmw-syndikat.de/bmwsyndikatforum/topic.asp?TOPIC_ID=28280&FORUM_ID=20&CAT_ID=9&Forum_Title=Geplaudere&Topic_Title=Problem+Sony+STR-DE445

Ralf (from Germany)

do you have a center channel speaker hooked up? Most voices during movies should come from the center channel

check the speaker connection,check the speaker resistance,if it found ok.then open the av receiver top panel and check nearer component of left speaker connection.check the out put power ic .

Most likely has a short in the amp that needs to be repaired.

Check the fuse, Sony is known for its random problems with sound. The one I have you must tap it on the side. Its a flicker switch inside.

If your system sounds great with the Sony receiver volume at 30+, then I wouldn't worry about the high setting. You can't compare the volume numbers from one system to another. They really don't mean much. More efficient speakers will play louder at a lower volume.

You should also check:
1) The speaker wire is connected properly
2) The impedance (Ohms) setting on your receiver matches recommended impedance for your speakers
3) The surround processing mode is correct

Properly there are two small transistors in side of the receiver, that are not working, if you are daring enough, go ahead and try to find out which ones they are, or find a repair tech that is willing to do it, as this requires surgical soldering skills to fix.

Take care..

We would be happy to help with that. Here is a list of some of the codes that we have for Sony Amplifiers: 500, 645, 687, 639, 846, and 765.

Press and hold the AUX mode button until all mode buttons at the top of the remote come on, then release. Enter the number 2 then * then one of the codes for your Sony amplifier provided above.Press the pound (#) button, the mode light should flash three times. Check that the code works by trying severaldifferent functions on the remote to make sure it will properly operate your Sony amplifier.Keep in mind that some codes may not be compatible with your equipment. If thisis the case, please try the other codes listed for that device until you findone that is compatible with your equipment.

We hope this helps you, and thank you for being a valued DISH Network Customer!


Phillip Chang
DISH Network Customer Service Representative

hello, your problem is the out put transistors, but before you replaced them check for any loose connections or cold solder in the pre-amp or drivers integrated circuit. good luck.

They don't actually say it in so many words but the "two week" comment and the Demo Mode startup on even the briefest power loss implies there is a battery or a charged capacitor for memory keep-alive somewhere inside the unit and it is dead or malfunctioning.

Maybe someone can add something more specific to look for. Either way, a tech needs to check it out.

My 8-year old Pioneer loses settings on extended power losses, too. Oh well.

There's a component that's going out or it might be a cold solder connection on the channel. Inspect the board for the latter - use a non- conductive tool and poke around the channel in question to detect the cold connection. Use extreme caution when working with a live circuit - try not to get electrocuted.

One of two things.
1) open power transformer (easy but not cheap)
2) short circuit (output transistors) that opened fuse. (more difficult but less expensive)