When the results of check item (32) are "
22
"
(Detection of DDC is OK)
Check item(35).
Check the TMDS CLK detection status of the regis-
ter. :
Send the following command from Termite.exe.
Send the transmission command "
i 002E 00FF 0001
".
The return value is "
88
".
Go to Yes.
The return value is "
80
".
Go to No.
Check item (36).
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
Checking the TMDS status register
HDMI SW(
IC701
) is faulty.
Replace with a new device.
Recheck from
check item (2).
If it does not work, replace the PCB.
Check for a short circuit in the TMDS line and the Front HDMI FFC.
If there is no problem, the Front HDMI Buffer(
IC811
) is faulty.
Replace with a new device.
HDMI SW(
IC701
) is faulty.
Replace with a new device.
Example
i 002E 00FF 0001
YES
YES
NO
TMDS Signal
3.3V
Example of waveform in check ①
TMDS
Example of waveform in check ②
NO
87
Caution in
servicing
Electrical
Mechanical
Repair Information
Updating
