Question about Pioneer VSX-D2011 Receiver
The sound started cutting out (both on speakers and headphone) a few months ago, with no error messages (display continues to work normally, responds to selecting different inputs, turning the volume control, etc). When the fault occurs there are no crackles or pops, the sound just stops, almost as if the mute has been activated.
To get the sound back, I have to leave the amp unplugged for a couple of hours, then usually the amp starts working again.
It has been taking less and less time for the fault to occur, until finally tonight I got no sound at all after power on.
I have checked the main voltage regulators, and they seem OK, but I have no circuit diagrams to do further checks.
If anyone has any circuit diagrams for the VSX-D2011S or has any advice on further checks I would appreciate any help.
I have the exact same amplifier with what sounds like the exact same problem. I opened up the amplifier, and while it was powered on started tapping around until I heard the popping and crackling suddenly increase. I was using a piece of wood and the plastic part of a screw driver for this. The popping and crackling suddenly burst out onto all channels when I was tapping on the DSP board (encased in a metal enclosure to the very right of the amplifier).
I took off the metal enclosure (with the receiver turned off, of course :), and with the receiver on, and started tapping around the DSP board, and I found that the biggest crackling effect was achieved when I tapped on the Cirrus Logic CS493292-CL chip which does all the decoding and switching.
I detached and took out the DSP board and looked at it very carefully but of course couldn't find any bad connections. I tried resoldering all the feet of the Cirrus Logic chip and many many components all around to no avail.
Finally I tried applying pressure to the chip while the popping was going on, and it stopped. Further investigation revealed that bending the board around the chip produced the same effect.
For the life of me I couldn't figure out why bending the board eliminates the problem, but my solution was to put a piece of eraser wrapped in masking tape and taped to the Cirrus Logic chip, and two other pieces on the back of the board in such a way that when the metal enclosure was replaced onto the board, it put gentle but firm pressure onto the Cirrus Logic chip and at the same time bent the DSP board slightly.
It's been a few days without popping, clicking or static, but time will tell. Good luck!
Posted on Feb 05, 2009
I have had the same problem, since there is no "mute" button on the receiver panel. My power cord on the receiver was plugged into my cable box and I was told this is not correct. I unplugged the receiver from the cable box and plugged it into my power surge protector and no more "mute"!!! Hope this helps.
Posted on Mar 05, 2010
Have you checked within the set, the fuse and if the standby circuit is working. thre could be a failure of this sub votage which is required for the switch on of the main power. If you do not have any standby indication you must check this section, however if you arre getting the standby you would have a failed output or a shorting that is triggering the error amp to swtich off. If you are familiar with the circuits you can check but I would suggest that since you will need more experience to look into the main board for tracing the fault. In such case check for the service centre nearest to the place you are in using a google search for Pioneer - Audio systems- sevice. Helpful I hope. Good day.
Posted on Jul 06, 2010
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