Hi,
I have an ebay TX-NR807 that has the following characteristics. Analog sources that are played in direct or pure audio work normally on main L/R speakers and Zone 2 (which is analog only). If I use any digital playback mode or digital source, the main L/R speakers play, but at a greatly reduced volume. It might be slightly distorted. Full volume on the unit provides a moderate listening level for digital sources or analog sources that are digitally processed.
The service manual is here.
The HDMI board has been upgraded I assume by Onkyo as the DSP is a new one. Network and HDMI output from the setup menu work correctly. I have performed a factory reset. The unit shows 7600 hours of use but since the HDMI board has been replaced, I'm not sure how accurate that is or if the hours are stored on the HDMI board.
Looking at the schematic one thing I would like to check is the DAC voltage rails. But I am having a hard time finding where the +15VA and -15VA is generated.
Can someone point me to where these rails are being generated? Or is there any other area I should be looking at first?
Thanks!
I have an ebay TX-NR807 that has the following characteristics. Analog sources that are played in direct or pure audio work normally on main L/R speakers and Zone 2 (which is analog only). If I use any digital playback mode or digital source, the main L/R speakers play, but at a greatly reduced volume. It might be slightly distorted. Full volume on the unit provides a moderate listening level for digital sources or analog sources that are digitally processed.
The service manual is here.
The HDMI board has been upgraded I assume by Onkyo as the DSP is a new one. Network and HDMI output from the setup menu work correctly. I have performed a factory reset. The unit shows 7600 hours of use but since the HDMI board has been replaced, I'm not sure how accurate that is or if the hours are stored on the HDMI board.
Looking at the schematic one thing I would like to check is the DAC voltage rails. But I am having a hard time finding where the +15VA and -15VA is generated.
Can someone point me to where these rails are being generated? Or is there any other area I should be looking at first?
Thanks!
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