Barco Galaxy NH-12 Service Manual page 51

• PFC (power factor connector)
• SMPS (switched mode power supply)
• controller board
board
PFC
SMPS
controller
Connectors
Image 7-22
Power box: connectors
Connector
1
2
3
6
12
13
15
16
R59770141 GALAXY NH-12 20/02/2008
description
Generates a stable DC voltage for the SMPS
Generates the power for the X-fan supply (380VM)
Supplies the various voltages: ++12V and +12V for:
• PMP
• X-fan supply
• preformatter
• desktop input board
• engine controller
• power box fan
Supplies voltages for fans
Receives and generates various control signals:
• motor power control
• lens motor control signals
• ambient temperature feedback signal
• ambient pressure feedback signal
• pulse counters for fans
Communication I2C and JTAG
1 2 3
7 8 9
15
Description
+12V / ++12V to the engine controller
fan of the power box
power supply for fans 0..4
+12V / ++12V to the PMP, X-fan supply, preformatter, desktop input
JTAG + communication X-fan supply
I2C: communication with PMP
pulse counters from fans 0..7
pulse counters from fans 8..15
7. Electronic parts and servicing procedures
4 5 6
12
13
16 17 18
21
14
19
20
47