Marantz SR5011 Service Manual page 109

When the results of check item (60) are "the communication results are OK"
Checking the TMDS status register (HDMI SW -> GUI)
Check item(63). Check the TMDS CLK detection status of the regis-
ter.
Send the following command from Termite.exe.
Send the command "i 00E2 0004 0001".
When the following value is returned, go to Yes.
"02"
When the following value is returned, go to No.
"other"
NO
Check item (64). Checking the TMDS input waveform. :
Check the TMDS waveform at the following test point.
Is the waveform like the sample?
YES
The GUI (U1026) is faulty.
Replace with a new device.
Recheck from check item (6).
If it does not work, replace the PCB.
Example
YES
The GUI (U1026) is faulty.
Replace with a new device.
Recheck from check item (6).
If it does not work, replace the PCB.
3.3V
TMDS Signal
Example of waveform in check ①
TMDS
Example of waveform in check ②
NO
HDMI SW (U1055) is faulty.
Replace with a new device.
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