Optical Output - Denon DNP-730AE Service Manual

3.1. Optical Output

Check the Power Supply Voltages for Optical.
MAIN PCB
・+3.3V_D1
[JACK101、2pin]
Check the audio data for DIR.
MAIN PCB
There are no abnormal voltages, such as middle potential.
There is no abnormal waveform.
DIR_SPDIFIN [IC100、33pin]
DIR_BCKIN
[IC100、30pin]
DIR_LRCKIN
[IC100、29pin]
DIR_DATAIN [IC100、28pin]
Check the audio data for DIR.
MAIN PCB
There are no abnormal voltages, such as middle potential.
There is no abnormal waveform.
DIR_RST
[IC100、34pin]
DIR_DAI [IC100、24pin]
DIR_CLK [IC100、25pin]
DIR_CS [IC100、26pin]
DIR_DAO [IC100、23pin]
Check the DIR clock.
MAIN PCB
・The clock signal of 24.576MHz will be output.
[IC100、40in]
Check the status of the following parts and check the solder.
FRONT PCB
IC100
Other, connected circuit.
See "3.3. Check the Audio Block"
YES
YES
YES
YES
YES
Check the status of the following parts and check the solder.
MAIN PCB
NO
IC106
Other, connected circuit.
Check the status of the following parts and check the solder.
MAIN PCB
NO
IC100、 CN200（CY920MODULE)
Other, connected circuit.
Check the status of the following parts and check the solder.
FRONT PCB
NO
IC113、IC100
Other, connected circuit.
Check the status of the following parts and check the solder.
FRONT PCB
NO
X100、IC100
Other, connected circuit.
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