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 (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 (U3401) is faulty.
Replace with a new device.
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
(N3402) indicate the (3.3V)?
N3402
D2+
D2-
D1+
D1-
D0+
D0-
CK+
CK-
Check item(50). Checking the HPD. :
Does the voltage of HPD test point close to the HDMI output termi-
nal (N3402) indicate "Hi" (3-5 V)?
N3402
HPD
Check the RXSENSE. (Monitor1) Check the HPD. (Monitor1)
NO NOYES YES
112
Caution in
servicing
Electrical Mechanical Repair Information Updating
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