When the results of check item (54) are "01"
(Detection of HPD is OK / Detection of RXSENSE is not OK )
When the results of check item (54) are "02"
(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 NOYES YES
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
108
To Next Page
Loading...
