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Power LED Blinks Four Times
Power LED Blinks Four Times
Conduct all voltage
Confirm the connection of CN AP3, P3, and P6.
checks before
shutdown.
No
Are
the connectors
Reseat the connectors.
properly
seated?
Turn the
Yes
Problem solved
unit on. Does the unit
Power up?
Is there
Is there
No
No
105Vdc between
24V at Pin 1
Replace the P board.
pins 1 and 3 of CN
of CN P6?
P3?
Yes
Yes
Replace the LCD Panel.
Is DTV9V and
No
SUB_5V present on the
Replace the AP board.
AP board? Refer to slide
? for test point.
Yes
Replace the A board.
62
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