Denon DNP-730AE - Cannot Connect to Network; First Setup Dosent Operate Normally, Ethernet Doesnt Playback

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2. Cannot connect to network
2.1. First Setup dosen't operate normally, Ethernet doesn't playback.
Check the writing signal for CY920.
MAIN PCB
There are no abnormal voltages, such as middle potential.
There is no abnormal waveform.
[IC207]
FLASH_HOLD
EXT_FLASH_CS
FLASH_DIN
FLASH_CLK
FLASH_DOUT
FLASH_WPROT
Check the status of the following parts and check the solder.
MAIN PCB
IC207
Other, connected circuit.
NO
YES
Check the communication signal for CY920.
MAIN PCB
There are no abnormal voltages, such as middle potential.
There is no abnormal waveform.
E_SPI_REQ
E_FACT_RST
E_SPI_CS
E_SPI_CLK
E_SPI_MIEO
E_SPI_MOEI
E_RESET
E_RXDMOEI
E_TXDMIEO
Check the status of the following parts and check the solder.
MAIN PCB
IC113
Other, connected circuit.
NO
YES
Check the communication signal for Wired.
MAIN PCB
There are no abnormal voltages, such as middle potential.
There is no abnormal waveform.
ETH_TX+ [RJ45
、
1pin]
ETH_TX- [RJ45
、
2pin]
ETH_RX+ [RJ45
、
3pin]
ETH_RX- [RJ45
、
6pin]
Check the status of the following parts and check the solder.
MAIN PCB
RJ45,R319,R320,R321,R322
Other, connected circuit.
NO
YES
Check the signal for Wireless.
The antenna cable and the connection, there is no
abnormality.
After conrming the connector of the connection, replace the
cable.
NO
YES
Check the Power Supply Voltages for CY920.
MAIN PCB
・
NET+1.2V
・
NET+1.8V
・
NET+2.5V
・
NET+3.3V
Check the status of the following parts and check the solder.
MAIN PCB
IC201,IC202,IC203,IC208
、
IC203
、
CN100
Other, connected circuit.
NO
YES
Replace the CY920 MODULE.