Denon AVR-X2300W - Page 105

Check item(60). Check the TMDS CLK detection status of the regis-
ter. :
Send the following command from Termite.exe.
Send the command "i 00E2 0004 0001".
"02" : Go to Yes.
"other" : Go to No.
Check item(61). Checking the TMDS input. :
Check the TMDS waveform at the following test point.
Is the waveform like the sample?
Check the TMDS status of the register. (HDMI SW -> GUI)
Example
The GUI (U1026) is faulty.
Replace with a new device.
HDMI SW(U1103) is faulty.
Replace with a new device.
The GUI (U1026) is faulty.
Replace with a new device.
3-6 HDMI SW IC (TMDS261B) failure detection procedure
NO
TMDS Signal
3.3V
Example of waveform in check ①
TMDS
Example of waveform in check ②
YES
YES NO
Recheck from check item (6).
If it does not work, replace the PCB.
Recheck from check item (6).
If it does not work, replace the PCB.
105
Caution in
servicing
Electrical Mechanical Repair Information Updating