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When the results of check item (3-13.4.) are "00"
(Detection of HPD is not OK / Detection of RXSENSE is not OK )
Check the RXSENSE/HPD. (Monitor1)
Check item(3-13.10.).
Checking the HPD and RXSENSE. :
Does the test point of RXSENSE close to the HDMI output terminal
[N1031] indicate the (3.3V)?
Does the voltage of HPD test point close to the HDMI output termi-
nal [N1031] indicate Hi (3-5V)?
N1031
HDMI
HDMI
OUT 1
OUT 1
HPD
YES
NO
Check for a short circuit in the TMDS/HPD line.
If there is no problem, the HDMI Tx [U1039] is faulty.
Replace with a new device.
HDMI Tx [U1039] is faulty.
Replace with a new device.
Recheck from
check item (3.3.)
If it does not work, replace the PCB.
Checking between Monitor 2 and the TV.
Connect Monitor2 to the TV and check the following items with the TV turned on.
Checking the HPD/RXSENSE status register. (Monitor2)
Check item(3-13.11.).
Check the HPD and RXSENSE register value of
the HDMI Tx device. :
Send the following command from Termite.exe.
Send the command
"i 0000 0040
0001".
Move to the branch destination according to the value returned.
"03"
(Detection of HPD is OK / Detection of RXSENSE is OK )
"01"
(Detection of HPD is OK / Detection of RXSENSE is not OK )
"02"
(Detection of HPD is not OK / Detection of RXSENSE is OK )
"00"
(Detection of HPD is not OK / Detection of RXSENSE is not OK )
121
Example
Go to
check item (3-13.12.)
Go to
check item (3-13.15.)
Go to
check item (3-13.16.)
Go to
check item (3-13.17.)
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