HDMI Tx [U3401] is faulty.
Replace with a new device.
HDMI Tx [U3401] is faulty.
Replace with a new device.
Recheck from check item (4).
If it does not work, replace the PCB.
Recheck from check item (4).
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.
When the results of check item (66) are "10"
(Detection of HPD is OK / Detection of RXSENSE is not OK )
When the results of check item (66) are "20"
(Detection of HPD is not OK / Detection of RXSENSE is OK )
Check item(70). Checking the RXSENSE :
Does the test point near HDMI output terminal [N3402] indicate
(3.3V)?
N3402
HDMI OUT
[MONITOR1]
D2+
D2-
D1+
D1-
D0+
D0-
CK+
CK-
Check item(71). Checking the HPD :
Does the test point (HPD) near HDMI output terminal [N3402] indi-
cate "Hi(3-5V)"?
N3402
HDMI OUT
[MONITOR1]
L3806: HPD
Check the TMDS. (HDMI OUT1) Check the HPD. (HDMI OUT1)
NO NOYES YES
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
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