Marantz NR1607 Service Manual page 98

When the results of check item (35) are "10"
(Detection of HPD is OK / Detection of RXSENSE is not OK )
Checking the RXSENSE (Monitor)
Check item(39). Checking the RXSENSE. :
Does the test point of RXSENSE close to the HDMI output terminal
(N1031) indicate the 3.3 V?
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 (4).
If it does not work, replace the PCB.
When the results of check item (35) are "20"
(Detection of HPD is not OK / Detection of RXSENSE is OK )
Checking the HPD. (Monitor)
Check item(40). Checking the HPD. :
Does the test point of HPD close to the HDMI output terminal
(N1031) indicate the Hi(3-5V)?
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 (4).
If it does not work, replace the PCB.
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