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
(N3401) indicate the 3.3 V?
N3401
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
(N3401) indicate "Hi" (3-5 V)?
N3401
HPD
Check the RXSENSE. (Monitor2) Check the HPD. (Monitor2)
HDMI Tx (U3401) is faulty.
Replace with a new device.
HDMI Tx (U3401) 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 (U3401) is faulty.
Replace with a new device.
Check for a short circuit in the HPD line.
If there is no problem, the HDMI Tx (U3401) is faulty.
Replace with a new device.
NO NOYES YES
115
Caution in
servicing
Electrical Mechanical Repair Information Updating
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