HDMI Switcher1 [U1003] is faulty.
Replace with a new device.
HDMI Switcher1 [U1003] is faulty.
Replace with a new device.
Recheck from check item (3.2.)
If it does not work, replace the PCB.
Recheck from check item (3.2.)
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 [U1003] is faulty.
Replace with a new device.
Check for a short circuit in the HPD line.
If there is no problem, the HDMI Switcher1 [U1003] is faulty.
Replace with a new device.
When the results of check item (3-11.7.) 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 (3-11.7.) are "32 or 22 or 12 or 02"
(Detection of HPD is not OK / Detection of RXSENSE is OK )
Check item(3-11.11.). Checking the RXSENSE :
Does the test point near HDMI output terminal [N1030] indicate
(3.3V)?
N1030
HDMI OUT
[ZONE2]
D2+
D2-
D1+
D1-
D0+
D0-
CK+
CK-
Check item(3-11.12.). Checking the HPD :
Does the test point near HDMI output terminal [N1030] indicate
Hi(3-5V)?
N1030
HDMI OUT
[ZONE2]
HPD
Check the TMDS. (HDMI ZONE2 OUT) Check the HPD. (HDMI ZONE2 OUT)
NO NOYES YES
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
117
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