Re: Denon avr-x2000 no sound on main zone
Here is the current summary:
1. Analog audio: (direct or any other mode) - no sound on main zone. Zone 2 good.
2. HDMI: All ports works for video. The audio doesn't work irrespective of AVR or TV. Tried with 2 different hdmi sources and same results.
3. Network player: Works only on zone 2.
4. Tuner: Works only on zone 2.
5. OPT1: No sound
6. GUI: Works intermittently.
Running through all the paths, especially analog pass through and hdmi with TV audio .. both take completely...
gvse
Member
Last Activity: 01-24-2022, 02:10 PM
Joined: 01-21-2021
Location: Fremont
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Re: Denon avr-x2000 no sound on main zone
The cabling got into this state only 4 or 5 days ago (after i posted the initial diagnostics results on 6/7/21 where all the video tests passed and only audio failed). The firmware update was done few months ago (i hadnt taken anything apart that time). Sorry about the confusion....Leave a comment:
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Re: Denon avr-x2000 no sound on main zone
Got some good news on the video front. I took out the hdmi board few days ago for inspection and when i put it back the aux hdmi ribbon cable from the front panel wasn't inserted properly. After connecting it and a factory reset, now the GUI firmware started reading 64110061. The hdmi video and gui (gui with intermittent issues) are working like before. I am back to where i was a week ago. All the video stuff works and the issue remaining is only with the audio on the main zone. I ran the diagnostic test but still the GUI test failed. Not...Last edited by gvse; 06-10-2021, 07:26 PM.Leave a comment:
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Re: Denon avr-x2000 no sound on main zone
Unfortunately i upgraded the firmware when i developed the audio problem
and the upgrade took a really long time.. but didnt have any issues. I did a quick check now and i do see the GUI firmware is showing FFFFFFFF. The rest of them are okay. That could be one of the issues with the GUI and also some people are reporting hdmi issues with this symptom. After the firmware upgrade i had noted down the version and it was 8F00-3876-[COLOR="red"][B]16[/B][/COLOR]74. Now the same thing shows 8F00-3876-[B][COLOR="Red"]FF[/COLOR][/B]74....
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Re: Denon avr-x2000 no sound on main zone
I measured all the outputs from U3601-U3605 and they matched with the voltages shown on p.142
Not sure what happened.. now none of the hdmi ports work. Factory reset and running diagnostics didn't help. HDMI pass-through also stopped working. This was working few days ago. The TV is however able to detect that i am connected to denon when i switch the input to a hdmi port that is not connected to any input. Also occasionally the gui worked (not when i ran diagnostics) and using the TV remote...Leave a comment:
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Re: Denon avr-x2000 no sound on main zone
Sorry for the late response. I just got the chance to run the tests.
1. The test tones do not play on any of the channels including the SBR/SBL.
2. I verified that the input board (CN4006) and it does measure -7v on 1 and 2 and +7v on 5 and 6.
I believe the selector IC is the R2A15218FP (page 120). For the IC is able to output on pins 54 and 55 (AD_L/AD_R). But nothing is coming back from hdmi board for pins 93 and 94 (DA_FL, DA_FR). Regarding the tones.. i believe these are generated digitally and go...Leave a comment:
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Re: Denon avr-x2000 no sound on main zone
Yes i have opened it up. I fed a 1 Khz analog audio and was able to test at various points using an oscilloscope. I do not see the signal going to the power amp board for FR and FL irrespective of the mode (i.e. direct / stereo). But i do see it for SBR and SBL (zone2). I do see the analog signal going to the hdmi board at A/D_L and A/D_R (page 120 input pcb). But nothing is coming out (DA_FR/DA_FL) from the hdmi board. Like i mentioned in the first post, i patched the SBR to FR and SBL to FL on the input board (CP401 on page 120) and i...Leave a comment:
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Re: Denon avr-x2000 no sound on main zone
The unit was working fine and about 6 months back it developed this issue all of a sudden. I didn't get a chance to debug it until last week.
I ran the diagnostics for both audio and video. The hdmi video tests worked most part except for the GUI menu test. I have seen that working intermittently when i did a reset. All the hdmi tests didn't produce any audio.
All the audio tests failed except for the analog zone2 (A07 in manual).Leave a comment:
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Re: Denon avr-x2000 no sound on main zone
Forgot to mention that tried factory reset and also loaded a new firmware and that didn't help.Leave a comment:
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Denon avr-x2000 no sound on main zone
I have a problem with the denon avr x2000 where the zone2 analog audio and am/fm works fine. But on the main zone none of the channels are getting any sound (including analog audio with direct or pure direct mode). With some debugging it appears like the input card is switching the analog audio to the hdmi board. But there is no return audio signal. The hdmi card seems fine for video. Its just the digital audio path that is having issue.
The power amp path is fine for the main zone. When i patch the zone2 preamp signal manually to FR and FL, i can hear the audio on FR/FL.
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Re: New Members - please post your introductions here
Hello, awesome information in the threads. I love fixing stuff...Leave a comment:
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Re: Denon AVR-X2000 no audio after blown channel, no bias current.
I have a similar no audio problem on the AVR-X2000. But in my case the unit powers up and i get audio on the zone2 speakers (SBR and SBL). It works only for analog audio inputs and FM on zone2. On the main zone all the channels are not working (including test tone). On the hdmi path the video works. But no audio.
Looking at the service manual the main zone uses the ADSP21487.. however the zone2 doesnt do any digital conversion.. is it possible something is wrong in that path ?Leave a comment:
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