When the results of check item (45) are "
10
"
(Detection of HPD is OK / Detection of RXSENSE is not OK )
When the results of check item (45) are "
20
"
(Detection of HPD is not OK / Detection of RXSENSE is OK )
Check item(49).
Checking the RXSENSE. :
Does the test point of RXSENSE close to the HDMI output terminal
(
JK751
) indicate the 3.3 V?
HDMI OUT
CK-
D0-
D1-
D2-
CK+
D0+
D1+
D2+
Check item(50).
Checking the HPD. :
Does the voltage of HPD test point close to the HDMI output terminal
(
JK751
) indicate Hi (3-5 V)?
HDMI OUT
HPD
Checking the RXSENSE (Monitor)
Checking the HPD. (Monitor)
The HDMI Rx/Tx (
IC721
) is faulty.
Replace with a new device.
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.
Recheck from
check item (3).
If it does not work, replace the PCB.
Check for a short circuit in the TMDS line.
If there is no problem, the HDMI Rx/Tx (
IC721
) is faulty.
Replace with a new device.
Check for a short circuit in the HPD line.
If there is no problem, the HDMI Rx/Tx (
IC721
) is faulty.
Replace with a new device.
NO
NO
YES
YES
93
Caution in
servicing
Electrical
Mechanical
Repair Information
Updating
