When i turn on the unit, it clicks and the audio and video will work, but after a few minutes it will click again, and the audio will stop working. the video continues to work, but no audio.

SOURCE: 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.

SOURCE: Rear Speakers

Update:
Took apart the boards and resoldered the Blue Relays. Now it seems to be ok. It looks like due to bad solder, the relay trips when the board warms up. Taking apart was relatively easy, several pluggable connections and many screws to deal with. I took a digital picture before pulling apart, so as to remember the connections. Also, had to remove the smaller boards to get to the big board at the bottom. The challenge is to solder, must be extremely careful to not drop solder on the board.

SOURCE: Receiver making alot of clicking noises.

I Have a son STR DE 845 and the speakers make a popping sound when it is in DTS mode what is the problem.

Thanks,
Larry

SOURCE: sony str-de845 powers on, relay clicks sound works

Hi there, can anyone help me? i cant seem to get my aiwa-d58 to get out of eco mode. no power, red light is on and every time i press the power button; the eco light clicks off and i no power supply to the whole unit. please help!

SOURCE: Sound clicks off Sony STR-DE835 5.1 Channel

THIS UNIT HAS BAD SOLDER CONNECTIONS ON REGULATOR TRANSISTORS,REMOVE BOTTOM AND YOU WILL SEE THE BAD CONNECTIONS.ALSO BE SURE TO RE-TIGHTEN ALL CHASSIC GRD SCREWS AS THIS WILL ALSO CAUSE THE SAME PROBLEM.