When the results of check item (3-16.11.) are "
00
"
(Detection of HPD is not OK / Detection of RXSENSE is not OK )
Check item(3-16.17.).
Checking the HPD and RXSENSE. :
Does the test point of RXSENSE close to the HDMI output terminal
[
N3401
] indicate the (3.3V)?
Does the voltage of HPD test point close to the HDMI output terminal
[
N3401
] indicate "Hi" (3-5 V)?
N3401
HDMI OUT
[MONITOR2]
D2+ D2- D1+ D1- D0+ D0- CK+ CK-
HPD
Checking the HPD/RXSENSE status register. (OUT2)
HDMI Tx [
U3401
] is faulty.
Replace with a new device.
Recheck from
check item (3.4.)
If it does not work, replace the PCB.
Check for a short circuit in the TMDS/ HPD line.
If there is no problem, the HDMI Tx [
U3401
] is faulty.
Replace with a new device.
NO
YES
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
135
