When the results of check item (54) are "
10
"
(Detection of HPD is OK / Detection of RXSENSE is not OK )
When the results of check item (54) are "
20
"
(Detection of HPD is not OK / Detection of RXSENSE is OK )
Check item(58).
Checking the RXSENSE. :
Does the test point of RXSENSE close to the HDMI output terminal
[
JK751
] indicate the 3.3 V?
JK751
HDMI OUT
[MONITOR]
D2+ D2- D1+ D1- D0+ D0- CK+ CK-
Check item(59).
Checking the HPD. :
Does the voltage of HPD test point close to the HDMI output terminal
[
JK751
] indicate "
Hi
" (3-5 V)?
JK751
HDMI OUT
[MONITOR]
HPD
Check the RXSENSE. (Monitor)
Check the HPD. (Monitor)
HDMI Rx/Tx [
IC721
] is faulty.
Replace with a new device.
HDMI Rx/Tx [
IC721
] is faulty.
Replace with a new device.
Recheck from
check item (3).
If it does not work, replace the PCB.
Recheck from
check item (3).
If it does not work, replace the PCB.
Check for a short circuit in the TMDS line.
If there is no problem, the HDMI Rx/Tx (
IC721
) is faulty.
Replace with a new device.
Check for a short circuit in the HPD line.
If there is no problem, the HDMI Rx/Tx (
IC721
) is faulty.
Replace with a new device.
NO
NO
YES
YES
102
Caution in
servicing
Electrical
Mechanical
Repair Information
Updating
Summary of Contents for AVR-S730H
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