HDMI Switcher1 (IC391) is faulty.
Replace with a new device.
HDMI Switcher1 (IC391) 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 Switcher1 (IC391) is faulty.
Replace with a new device.
Check for a short circuit in the HPD line.
If there is no problem, the HDMI Switcher1 (IC391) is faulty.
Replace with a new device.
When the results of check item (19) are "31 or 21 or 11 or 01"
(Detection of HPD is OK / Detection of RXSENSE is not OK )
When the results of check item (19) are "32 or 22 or 12 or 02"
(Detection of HPD is not OK / Detection of RXSENSE is OK )
Check item(23). Checking the RXSENSE. :
Does the test point near HDMI output terminal (JK394) indicate
(3.3V)?
JK394
D2+
D2-
D1+
D1-
D0+
D0-
CK+
CK-
ZONE2
Check item(24). Checking the HPD. :
Does the test point near HDMI output terminal (JK394) indicate
Hi(3-5V)?
JK394
ZONE2
HPD
Check the TMDS. (HDMI ZONE2 OUT) Check the HPD. (HDMI ZONE2 OUT)
NO NOYES YES
103
Caution in
servicing
Electrical Mechanical Repair Information Updating
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