When the results of check item (46) are "the communication results are OK"
Check item(43).
Check the TMDS CLK detection status of the regis-
ter. :
Send the following command from Termite.exe.
Send the transmission command "
i 0006 00FF 0001
".
The return value is "
C8
"
Go to Yes.
The return value is "
other
"
Go to No.
Check the TMDS status of the register. (OSD -> HDMI Rx/Tx)
Example
i 0006 00FF 0001
Check item (44).
Checking the TMDS input waveform. :
Check the TMDS waveform at the following test point.
Is the waveform like the sample?
HDMI SW(
IC701
)
42/43/45/46/48/49/51/52pin
The HDMI Rx/Tx (
IC721
) is faulty.
Replace with a new device.
Recheck from
check item (3).
If it does not work, replace the PCB.
The OSD(
IC731
) is faulty.
Replace with a new device.
Check the connection between the HDMI OUT terminal and the TV.
Go to
check item (45)
.
YES
YES
NO
TMDS Signal
3.3V
Example of waveform in check ①
TMDS
Example of waveform in check ②
NO
90
Caution in
servicing
Electrical
Mechanical
Repair Information
Updating
