Marantz SR7013 Service Manual page 135

When the results of check item (3-16.4.) are "10"
(Detection of HPD is OK / Detection of RXSENSE is not OK )
Check the TMDS. (HDMI OUT1)
Check item(3-16.8.). Checking the RXSENSE :
Does the test point near HDMI output terminal [JK431] indicate
(3.3V)?
JK431
HDMI OUT
[MONITOR1]
YES NO
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.
HDMI Tx [IC431] is faulty.
Replace with a new device.
Recheck from check item (3.4.)
If it does not work, replace the PCB.
When the results of check item (3-16.4.) are "20"
(Detection of HPD is not OK / Detection of RXSENSE is OK )
Check the HPD. (HDMI OUT1)
Check item(3-16.9.). Checking the HPD :
Does the test point (HPD) near HDMI output terminal [JK431] indi-
cate "Hi(3-5V)"?
JK431
HDMI OUT
[MONITOR1]
HPD
YES NO
Check for a short circuit in the HPD line.
If there is no problem, the HDMI Tx [IC431] is faulty.
Replace with a new device.
HDMI Tx [IC431] is faulty.
Replace with a new device.
Recheck from check item (3.4.)
If it does not work, replace the PCB.
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