HP PL4260N Service Manual page 57

Failure type
The red LED does not light up.
Inspection items
1 Check whether or not the power cord is
connected. Press the power switch or the
power key on the remote control, if log
displays, go to step 5.
2 Open the back cover.
3 Check whether the +5V power has been
supplied to pin #3 of CON23 on MB.
4 Check whether the +5V power has been
supplied to pin #3 of J21 on MB.
5 Open the rear cover.
6 Check the connections of the J21 on MB and
XPR01 on IB.
7 Check whether the +5V power has been
supplied to pin #4 of XPR01 on IB.
8 Replace the IB if there is power on XPR01.
Otherwise, replace the IR cable.
Picture
Pin #3 of CON23 can supply standby +5V when power cord is
connected.
Remarks
Pin #3 of J21 can supply +5V when power cord is connected.
HP High-Definition Plasma TV Service Manual PL4260N, PL5060N
pin #3 of CON23:+5V
pin #3 of
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