Denon AVR-X8500H Service Manual page 117

When the results of check item (48) are "31 or 21 or 11 or
(Detection of HPD is OK / Detection of RXSENSE is not OK )
Check the TMDS. (HDMI ZONE2 OUT)
Check item(52). Checking the RXSENSE :
Does the test point near HDMI output terminal [N5010] indicate
(3.3V)?
N5010
HDMI OUT
[ZONE2]
YES NO
Check for a short circuit in the TMDS line.
If there is no problem, the HDMI Switcher1 [U2401] is faulty.
Replace with a new device.
HDMI Switcher1 [U2401] is faulty.
Replace with a new device.
Recheck from check item (2).
If it does not work, replace the PCB.
01" When the results of check item (48) are "32 or 22 or 12 or
(Detection of HPD is not OK / Detection of RXSENSE is OK )
Check the HPD. (HDMI ZONE2 OUT)
Check item(53). Checking the HPD :
Does the test point near HDMI output terminal [N5010] indicate
Hi(3-5V)?
N5010
HDMI OUT
[ZONE2]
HPD
YES NO
Check for a short circuit in the HPD line.
If there is no problem, the HDMI Switcher1 [U2401] is faulty.
Replace with a new device.
HDMI Switcher1 [U2401] is faulty.
Replace with a new device.
Recheck from check item (2).
If it does not work, replace the PCB.
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