Question about Sony STR-DE345 Receiver

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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.

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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.

Posted on Dec 24, 2010

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Posted on Jan 02, 2017

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1 Answer

No sound. It flashes protect.


Your device has went into protection mode, an internal malfunction causes it to shut down in order to protect itself.
Somtimes a physical reset will help.
Turn of and unplug device fro a couple of hours

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/jason_77a19afa8d604dee

Feb 15, 2012 | Sony STR-DE345 Receiver

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

2 Answers

Sony str-de345 this keeps on making a


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.

Jan 30, 2010 | Sony STR-DE345 Receiver

1 Answer

I have a Sony STR-DE345 receiver, it occasionnal cuts out all together, I removed the cover, and there are two round pieces side by side that look like two "c" batteries, well when I wiggle the one on the...


First things first, be careful wiggling components in a unit that is pugged in. Even after the power is turned off and the steroe is unplugged you can still be shocked by a discharging capacitor.

It sounds like you have a broken solder connection. If you have a soldering iron and can access the solder side of the board, you can repair the connection by applying more solder to the board. This will reflow the old solder and add more which should give you a complete connection again. Be sure to check for shorts after you are done. If your solder flows to another component you may end up damaging the receiver completely

Dec 17, 2009 | 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

Sony STR-DE545 Amp


Find the user manual under product details.

Mar 09, 2008 | Sony STR-DE345 Receiver

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