Barco HDF W Series Service Manual page 317

Description of the diagnostic LEDs
Ref. Description (LED
color)
1
POWER BAD (red)
2 POWER CTRL BAD
(red)
3 +12V Main (green)
3 +12V STBY (green)
R5905312 HDF W SERIES 24/01/2013
Comment
In normal condition this LED does not lit up. In case this LED lit up and the POWER CTRL BAD
LED remains off then there is probably a problem (voltage too low) with the +12V from the
Switched mode power supply and/or with one of the local generated power source +2.5V and 3.3V
on the Switched mode power supply.
This LED lit up in case:
• the standby voltage ++12V form the Switched mode power supply is to low.
• the white CONTROL wire unit is disconnected from the Switched mode power supply.
• the Switched mode power supply is defect (signal with mains frequency is missing).
This LED lit up in normal condition and indicates that the
This LED lit up in normal condition and indicates that the ++12V standby from the Switched mode
power supply is available.
19. Board Diagnostic LED's
313