Removing The X-Fan Supply - Barco Galaxy NH-12 Service Manual

7. Electronic parts and servicing procedures
Schematic overview
X-fan supply
from PB
++12 V
+380 VM
EID
Image 7-36
X-fan supply: block diagram
LED diagnostics
Four LED's are available on the X-fan supply
LED LED color
number
orange
1
green
2
3
orange
4
7.3.2

Removing the X-fan supply

Necessary tools
• Torx screwdriver T10
• Nut spanner 7 mm
In pictures below, the power box + X-fan supply assembly has been removed from the projector first. However,
the X-fan supply can be removed from the power box without taking the assembly out of the projector! The
way to remove the X-fan supply is exactly the same in both cases.
How to remove the X-fan supply?
1. Remove the covers (see concerning chapters):
54
380 VM
24 VDC
interconnection between power box and small fans
power FANS
Description
ON when +24V is active (active state of the projector)
not applicable
red ON if the power box sends an interrupt to the projector control and the projector control does
not read this interrupt
BLINKS (with a frequency of 1 sec) when the X-fan supply control is OK
+24VDC
NA
controller
PWM
R59770141 GALAXY NH-12 20/02/2008
ERR X-fan ok
ctrl
I2C
main fans (3)
amb sensor
to PELTIER
AC
to fan
DC