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Post by dolivas27 on Mar 23, 2015 23:49:28 GMT -5
Ok I have a Pioneer VSX-1121-K That has no sound it powers up fine no errors are detected in the service menu.
I have tried to update the firmware but it always fails at 20% it does not mater if I use the Network or USB Stick.
Where might I start to look? I have checked the basic but I don't see anything wrong.
From following the service manual No Sound flow Chart it looks like the Audio ASSY could be bad.
Thanks for the help,
Dean
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Post by ugamike on Mar 24, 2015 14:52:40 GMT -5
I have the exact same issue. It just happened last week. All AV Switching is fine but I am not getting any audio even from the radio tuner. The headphone jack doesn't work either so I assume its the D-main board not the audio assy.
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Post by dolivas27 on Mar 24, 2015 16:50:16 GMT -5
I have the exact same issue. It just happened last week. All AV Switching is fine but I am not getting any audio even from the radio tuner. The headphone jack doesn't work either so I assume its the D-main board not the audio assy. Headphone jack does not work on mine either but the flow chart still shows to replace the Audio Assy? |
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Post by mastertech on Mar 24, 2015 17:02:03 GMT -5
Give me a little more time to look this up. I am not sure if I have this manual.
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Post by dolivas27 on Mar 24, 2015 21:45:30 GMT -5
Give me a little more time to look this up. I am not sure if I have this manual. Here's the Service Manual if you need it, 1drv.ms/1y3R8YV |
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Post by mastertech on Mar 25, 2015 15:03:26 GMT -5
Have you tried using an analog input and setting the receiver to "Pure Direct"?
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Post by dolivas27 on Mar 25, 2015 20:24:04 GMT -5
Have you tried using an analog input and setting the receiver to "Pure Direct"? Not sure if i had tested that let me get it back together and I will test it and get back to you. |
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Post by mastertech on Mar 27, 2015 14:47:28 GMT -5
I have the exact same issue. It just happened last week. All AV Switching is fine but I am not getting any audio even from the radio tuner. The headphone jack doesn't work either so I assume its the D-main board not the audio assy. Have you tried this ugamike? "Have you tried using an analog input and setting the receiver to "Pure Direct"?" |
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Post by ugamike on Mar 30, 2015 13:30:16 GMT -5
I have not tried this. I currently dont have the unit. I took it to a friend that works on electronics to see if he could diagnose this issue. I will get it back and give that a shot.
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Post by ugamike on Apr 3, 2015 15:36:14 GMT -5
I am still waiting to get my unit back but I started thinking... I did try the radio tuner outputting to the headphones wouldn't that be the same type of test?
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Post by mastertech on Apr 3, 2015 15:44:53 GMT -5
Well not necessarily but i would have to trace through the schematics to verify. What I am trying to find out here is this. When you use "Pure Direct" it bypasses the DSP section of the receiver. The test would be nothing more then to narrow down what section of the signal path you would need to start testing at. And I am not sure if the tuner signal passes through the DSP section regardless of "Pure Direct" or not.
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Post by dolivas27 on Apr 4, 2015 18:12:31 GMT -5
Sorry guys I have not been able to get back to this I had knee surgery on my left knee in March and just had surgery on my right knee on 4-1 and this one is not going as well at all having a hard time walking right now so no way to get down stairs to the tech room. I will report back once I able to walk again.
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Post by mastertech on Apr 4, 2015 20:22:25 GMT -5
No hurry. Take your time and heal up. That is more important.
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Post by ugamike on May 1, 2015 10:49:54 GMT -5
I just purchased another broken unit on eBay with a spare main board. My hope is to use one for parts and get the other working. Is there any power I need to discharge before I start working on this?
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Post by mastertech on May 1, 2015 18:05:40 GMT -5
No, you should not have to discharge anything. Only the power caps would hold a substantial charge but they should dissipate fairly quickly. But that is only after you have tried a startup. It is usually only a problem when you try a startup with boards disconnected and then attempt to reconnect them after a failed start.
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