Barco Galaxy NH-12 Service Manual page 50

7. Electronic parts and servicing procedures
Schematic overview
POWERBOX
MAINS IN
230V
to X-fan
+380 VM
Image 7-20
Power box: block diagram
Configuration
Image 7-21
Power box: configuration
The power box consists of three boards that are communicating through board to board connectors. For safety reasons, insulating
plates have been mounted between the boards and on top of the SMPS: these plates must always be present!
The three boards are:
46
PFC
1 2 3
7 8 9
15
controller
+12V
ERR
++12V
SMPS
4 5 6
12
13
16 17 18
21
R59770141 GALAXY NH-12 20/02/2008
ctrl
I2C
pulse fan
PB ok
temp.
sensor
PWR output
+12V
++12V
FANS
SMPS
14
19
20
CONTROLLER
PFC