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5. Trouble shooting
5.1 Trouble Shooting of Plasma Monitor
Power can not be turned on (LED is not light)
Is the input voltage applied to the AC/DC Power unit ? (CN61 â� , â�¢) Yes
No
AC inlet
Power switch
AC Fuse F901 T6.3AH 250V
FILTER PWB
Are Voltage applied to pins ��,�(PW01) of the Signal PWB � +12V � +6V � +4.5V � GND Signal PWB
No
Yes
AC/DC Power unit
Picture is displayed. But no sound
Are Voltage applied to pins â� (PVA) of the Audio PWB â� +22ï½�28V â�£ GND
No
Yes
AC/DC Power unit No
Are Signal applied to pin �� and �� (PVA1)of the Audio PWB
Yes Are
Signal PWB
there signals on Speaker Terminals
No
Yes
Audio PWB
Speaker
5
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