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Picture is not displayed (LED is lit)
Is the LED red or green? green Do the Fans rotate?
red
Is the voltage applied to pin ² (PAS) No of the Signal PWB correct? Yes
No
AC/DC Power unit
Yes
With J106 (AC/DC Power unit) disconnected, is the picture displayed?
No
² +5.6V ´ GND
AC/DC Power unit Yes DC Fan No low (0V)
Is the voltage of pin - (J104) on the AC/DC Power unit 5V?
Is Voltage of the pin - (PAS) on the Signal PWB high? high (5V) Signal PWB
Yes Are the voltages of pins ¯, ² (J103) on the AC/DC Power unit correct? Yes ¯ +165V ² + 70V ¬ GND Are the voltages of the DC/DC Power unit correct?
AC/DC Power unit
AC/DC Power unit
No
Is the voltage of pin ³ (J102) on the AC/DC Power unit correct? No Yes ³ +3V ´ GND AC/DC Power unit
