Denon DNP-800NE Service Manual page 45

5. Audio is not output during USB file playback, server file playback, internet radio or Bluetooth playback due to a problem in the digital
circuit
Before testing circuit operation, check if the file to be played back is in a supported format and network settings are correct.
Check output of digital audio waveform during audio file playback or streaming.
MAIN PCB
LEGO Module[U507] : [L505]LRCK, [L504]BCK, [L503]DATA
OK
Check output of digital audio waveform.
MAIN PCB
PLD[U501] : [R583]BCK/DBCK, [R582]LRCK/DSD_DATAL, [R581]PCM_DATA/DSD_DATA
OK
Check output of digital audio waveform.
MAIN PCB
FPGA[IC501] : [R584]BCK,[R589]WCK/DSD_R, [R586]DATA_L, [R587]DATA_R
OK
Check each part listed after "4. Audio is not output due to a problem in the analog circuit (Line Out,
Variable Out, H/P Out)".
NG
There is a malfunction in the communication between the following areas or in LEGO Module.
LEGO Module[U507] and SYSTEM uCOM[U503]
If no abnormality is found in the communication waveform, replace LEGO Module[U507].
NG
There is a malfunction in the communication between the following areas or in PLD[U501].
PLD[U501] and SYSTEM uCOM[U503]
If no abnormality is found in the communication, replace PLD[U501] or MAIN PCB.
NG
There is a malfunction in the communication between the following areas or in FPGA[IC501].
There is an abnormality in the communication. Replace FPGA[IC501] or MAIN PCB.
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