My Sony STR-DA3ES receiver began misbehaving several months ago. It seems to be misinterpreting IR signals from a variety of remotes, including its own, two different Sony DVD player remotes, a Samsung DirecTV receiver remote, etc. The result is the same; the STR-DA3ES switches input to Video 1. For example, I can press the "cursor" buttons on a DVD player remote to make menu selections on-screen, and at a seemingly random button press, the receiver's input will change to Video 1. In all other respects, the receiver is functioning normally. I've dug around for any info about this problem and have found none. If there's any way to resolve this problem, I'd appreciate the help.
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Re: Receiver misinterpreting IR signals
There can be a few causes of this. Since it happens with a number of remotes, we can state that the problem is inside the receiver. In the front of the receiver (inside) you should see a small silver box. Inside that is the InfraRed receiver. This is a 3 pin device. Check to be sure that the pins have good solder joints. A bad joint can cause problems. Also, after the receiver comes what is called a digital switch. This is similar to a transistor except that it makes the transitions more steep, like a step rather than a ramp. If this part is bad you can get these results. The digital switch will be marked c124 (perhaps or somehting close).
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you have a bad ground in the volume knob. first take the knob off and there should be a nut that tightens. tighten if loose. if not spray w-d 40 or any kind of penitrating oil on the nut and around it. it will not mess it up,ive done it several times. the worst it could do is not fix it.
Could need a new ir sensor or repair solder connections on the display (ir) board. You can check that the remote is putting out a signal by viewing it with a camcorder, turn the camera on look through the viewfinder and point the remote at it push a button. If it is working you will see a flashing light on the remote.
Sounds like its going to square wave clipping and poking a dc offset at your speakers. Happens when the amp reaches power supply ceilings. Pink noise such as "rain sound" will push the output stages and power supply to limits. If its on all channels, check power supply caps and check for dry solder joints. also look for that crappy brown hold down glue that goes conductive/corrosive. check all output stages particularly about discrete output devices that are attached to heat-sinks. They have a bad habit of dry jointing also. Good Luck
MEtten, Flip the top cover, just above the "AV MENU" there is a round boll kind of switch, it has to be pressed when you want to function top cover button, so may be it is warn out or the nob has been broken. if you press that switch with pen nob it will function...