Question about Sony STR-DE845 Receiver

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Sound cuts off

Hi! My receiver plays audio fine for about 45 minutes, then starts to lose the sound, i hear a click, and all audio stops. I press on the display screen or on the side, move the receiver somehow, and the sound clicks on again...this keeps getting worse and worse there a fix, or am i doomed to dish out money for another one?

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Re: Sound cuts off

He's partially right... I have fixed 3 shorts on my de845. 2 have been caused by cracked solder joints. they were speaker cutout problems...yours most likely is the center channel relay on the main board. take the thing apart. you need to get to the back of the main board and re-flo those solder joints. get your geeky pc buddy and do it together(buy him a sixer). its really not that hard...just a bunch of screws. disconnect everything from the main board including the front plate. be careful with the ribbon cable...mine is hurting at this point. not meant to be removed so many times. put it in straight. my leads bent, but was able to straighten them. there are 5 relays together, one for each channel. they are white cubes and prb a little smaller than the tip of your finger. its the 4 leads on each of these that you want to take a soldering iron to . i'm not sure which ones the center channel so do them all in that area. it may be hard for you to tell which leads they are so just go overboard and at least get everything in the vacinity. i did all component leads because who's to say another's not ready to go bad. you've gone this far. touch the heated up tip to all the leads at the very end of the barb. you can reflow the solder without actually touching it. the metal lead will get hot enough. hold it until the solder liquifies, then let it cool. do this on a flat surface. my other fix once was a re-seating at the speaker switch a,b,a+b on the front plate. there are 2 boards plugged together there. i bent the leads slightly so they seated in more tightly. if your left or right front goes out, sometimes thats an easy fix...try b if you're using a, or the opposite. don't forget the speaker cables. if you're using both zones then you prb already figured out you need to re-flo! test and cross your fingers. good luck.

Posted on Jul 27, 2007

Re: Sound cuts off

Unit power stays on (display and lights) but no sound, no protection message on display. Remove cover and then 8 screws on front panel. The power switch board and main display board has a 4 pin connector between them. Reflow solder on both boards, reconnect everything and it will work forever!!!

Posted on Sep 27, 2007

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Re: Sound cuts off

Hi sounds like a heating problem probebly the heatsink of the AMP is cloged with dust unplug from wall open cover vacuum all the dust and then clean well place the reciver on top of all the components for a good ventilation good luck

Posted on Mar 26, 2006

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