When the results of check item (52) are "01"
(Detection of HPD is OK / Detection of RXSENSE is not OK )
When the results of check item (52) are "02"
(Detection of HPD is not OK / Detection of RXSENSE is OK )
Check item(56). Checking the RXSENSE. :
Does the test point of RXSENSE close to the HDMI output terminal
(JK432) indicate the 3.3 V?
JK432
D2+
D2-
D1+
D1-
D0+
D0-
CK+
CK-
Check item(57). Checking the HPD. :
Does the voltage of HPD test point close to the HDMI output terminal
(JK432) indicate Hi (3-5 V)?
JK432
HPD
Check the RXSENSE. (Monitor2) Check the HPD. (Monitor2)
HDMI Tx (IC431) is faulty.
Replace with a new device.
HDMI Tx (IC431) is faulty.
Replace with a new device.
Recheck from check item (5).
If it does not work, replace the PCB.
Recheck from check item (5).
If it does not work, replace the PCB.
Check for a short circuit in the TMDS line.
If there is no problem, the HDMI Tx (IC431) is faulty.
Replace with a new device.
Check for a short circuit in the HPD line.
If there is no problem, the HDMI Tx (IC431) is faulty.
Replace with a new device.
NO NOYES YES
117
Caution in
servicing
Electrical Mechanical Repair Information Updating
To Next Page
Loading...
