Question about Sony STR-DE345 Receiver

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Sony str-de345 this keeps on making a

Sony str-de345 this keeps on making a clicking noise and then about 15-20mis later the sound dissapears if you tap the top it comes back

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The clicking is a power suplie overload some output amp is with problems and shutdown after overheat, when you tap is bad connection inside, normaly is related with sound off after 15min. needs to be checked by tech. to ensure perfect operation.

Posted on Jan 31, 2010

Testimonial: "thanks you help was usefull the tech was working on it but it just died and was not worth fixing"

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After a number of years of use, these Sony's tend to develop many bad solder connections. They can be anywhere on any of the several circuit boards within. You'll need to take it to a shop. If you want to download the service and users manuals go here:
http://www.manualslib.com/download/162899/Sony-Str-De245-De345.html
If your not a tech, they probably won't help you.

Posted on Jun 04, 2016

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2 Answers

My sony STR-DE345 amp says "protect" and there is


The manual says it thinks there is a short circuit on the amplifier output side. If it still says Protect after disconnncting all the speakers wires there is an internal problem. Take it to a hands-on tech.

If the problem disappears, you had a short. Attach speakers one at a time to isolate the cause.

http://www.retrevo.com/support/Sony-STR-DE345-Receivers-manual/id/387bh943/t/2/

Dec 24, 2010 | Sony STR-DE345 Receiver

1 Answer

Is there an internal battery on the STR-DE345 Sony receiver for the pre-sets? Can it be replaced if there is. Receiver no longer holds pre-sets when there is a power outage.


There is no battery to replace to hold preset channels. The preset channels are held by a charged capacitor to maintain the nominal voltage level to the PLL (phase lock loop) tuner. The capacitor can only hold the charge for a few hours, and then it will slowly discharge - for like a short power outage.

Dec 24, 2010 | Sony STR-DE345 Receiver

1 Answer

Fuse keeps poping, what other type of fuse can i buy for this, my model is STR-DE435 (sony)


If it keeps blowing the rated fuse you really need to take it in to a shop for further analysis. Using an incorrect, higher value fuse will only raise the risk of fire or more damage to whatever is blown in the unit.

Dec 08, 2010 | Sony STR-DE345 Receiver

1 Answer

Sony receiver STR-DE345 OVERHEATED how do i fix it ??????


these do run hot, they don't have a fan so they need good ventalation. If your has completely failed you may be able to resolder the voltage str and stk voltage driver Ic's or replace them.

Jul 16, 2009 | Sony STR-DE345 Receiver

2 Answers

I need a schematic or service manual for Sony STR-DE345.


hi,

i can download it for you..
visit this site for manuals of your unit it will help you answer all your questions.

http://www.free-service-manuals.com/Detailed/15736.html

thanks,

you rate in our answers are much appreciated..

Feb 19, 2009 | Sony STR-DE345 Receiver

1 Answer

Loud buzzing at the first volume setting


Check all your wires and make sure that none of the wires that are powering any equipment (including extension cords, power bars, and power cables on the unit itself) are running parallel to any of the audio cables going to your speakers or from your inputs to your unit. This could be what's called AC hum, which is caused when the electrical current causes interference that gets picked up by the audio cables and amplified by your system. Just make sure you move the power cords as far away as possible from the audio cables.

Jan 08, 2009 | Sony STR-DE345 Receiver

1 Answer

SONY STR-DE345


Having repaired many of this model and other similar models, I can get at teh board relatively quickly. That being said, it is a poor design for repairs. It is, however, cheap and quick for manufacturing. Take your time and remove all of the board screws, the screws that hold down the heatsink and the rear cabinet screws. The whole board should be able to lift from the back with a little patience. Be careful not to tear any of the ribbon connectors. With the unit on its side, you should have access to resolder any questionable joints.

Dan

Oct 31, 2008 | Sony STR-DE345 Receiver

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