Check item(72). Check the TMDS CLK detection status of the regis-
ter.
Send the following command from Termite.exe.
Send the command "i 0006 00FF 0001".
When the following value is returned, go to Yes.
"74"
When the following value is returned, go to No.
"70"
Checking the TMDS status register (GUI -> HDMI Tx)
Example
Recheck from check item (4).
If it does not work, replace the PCB.
Recheck from check item (4).
If it does not work, replace the PCB.
Check item (73). Checking the TMDS input. :
TMDS waveform at the following points.
55/56/58/59/61/62/64/65 pin
U1039
The GUI [U1026] is faulty.
Replace with a new device.
HDMI Tx [U1039] is faulty.
Replace with a new device.
HDMI Tx [U1039] is faulty.
Replace with a new device.
TMDS Signal
3.3V
Example of waveform in check ①
Voltage scale：1.0V/div
Time scale：20ms/div
TMDS
Example of waveform in check ②
Voltage scale：1.0V/div
Time scale：1s/div
YES NO
YES
NO
3-13. GUI IC [ADV8003] failure detection procedure
118
Caution in
servicing
Electrical Mechanical Repair Information Updating
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