Marantz SR5012 Service Manual page 126

When the results of check item (66) are "00"
(Detection of HPD is not OK / Detection of RXSENSE is not OK )
Checking the HPD/RXSENSE status register. (Monitor2)
Check item(72). Checking the HPD and RXSENSE. :
Does the test point of RXSENSE close to the HDMI output terminal
[N1030] indicate the (3.3V)?
Does the voltage of HPD test point close to the HDMI output terminal
[N1030] indicate "Hi" (3-5 V)?
N1030
HDMI HDMI
OUT 2 OUT 2
HPD
YES NO
Check for a short circuit in the TMDS/ 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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