Marantz SR5012 Service Manual page 122

When the results of check item (59) are "10"
(Detection of HPD is OK / Detection of RXSENSE is not OK )
Check the RXSENSE. (Monitor1)
Check item(63). Checking the RXSENSE. :
Does the test point of RXSENSE close to the HDMI output terminal
[N1031] indicate the (3.3V)?
N1031
HDMI HDMI
OUT 1 OUT 1
YES NO
Check for a short circuit in the TMDS line.
If there is no problem, the HDMI Tx [U1039] is faulty.
Replace with a new device.
HDMI Tx [U1039] is faulty.
Replace with a new device.
Recheck from check item (3).
If it does not work, replace the PCB.
When the results of check item (59) are "20"
(Detection of HPD is not OK / Detection of RXSENSE is OK )
Check the HPD. (Monitor1)
Check item(64). Checking the HPD :
Does the voltage of HPD test point close to the HDMI output termi-
nal [N1031] indicate Hi (3-5 V)?
N1031
HDMI HDMI
OUT 1 OUT 1
HPD
YES NO
Check for a short circuit in the HPD line.
If there is no problem, the HDMI Tx [U1039] is faulty.
Replace with a new device.
HDMI Tx [U1039] is faulty.
Replace with a new device.
Recheck from check item (3).
If it does not work, replace the PCB.
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