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Picture is not displayed (LED is lighting)
Is the LED red
or green?
Do the Fans
rotate?
Is Voltage
of the pin 5(PED)
on the AC/DC Power
unit 5V
Are Voltages
of the pin 1(PEY1)
on the AC/DC Power
unit collect ?
Panel Module
red
green
No
Yes
When
disconnect
PF1-3 of the AC/DC
Power unit, the picture
Is displayed ?
Yes
DC Fan
No
AC/DC
Power unit
Yes
No
Yes
1 : +180V
4 : GND
See page 6
Voltage
applied to pins 7(PED)
of the Signal PWB?
No
AC/DC
Power unit
Is Voltage
of the pin 2(PSC1)
on the Signal PWB
Signal PWB
Is Voltage
of the pin 9, 11(PED)
on the AC/DC Power
unit collect ?
AC/DC
Power unit
5
Are
No
AC/DC
Yes
Power unit
5 : GND
7 : +5.6V
low (0V)
high?
high (5V)
No
Yes
Panel
9 : GND
Module
11 : +4V
AC/DC
Power unit
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