Low Voltage Power Supply; Standby Power Supply; Igniter - Christie CP4230 Service Manual

Section 1: Introduction
• Ground (earth) connection is necessary for safety. Never compromise safety by returning
the current through the ground. Connect ground first to reduce shock hazard from high
leakage.
• Use an appropriate strain relief connector on the AC supply cable to prevent the cable from
rubbing against the LPS knockout plate and becoming damaged.
The head is powered by 200-240VAC (nominal) single phase power through an IEC320 receptacle which is
plugged into the remote lamp power supply (via a reverse IEC320 connection), into the wall (where available)
or used with a UPS. The latter two methods require an appropriately rated line cord for the country of
installation. The projector is provided with an IEC320 connector near the input panel for connection to a UPS.
This connection takes 100-240VAC power and will power all the electronics of the projector. Standby Power
(24V) is available at all times when the wall breaker/disconnect is powered on via a separate "power brick"
style power supply. This unit will power the TPC and electronics only. The remote switching lamp power
supply can be wired to 3 phase 208 or 400 VAC and provides a well regulated DC current up to 180 amps with
a maximum power of 7 kW. The voltage input to the lamp depends on the installed lamp, and can range from
18 to 46 VDC. The power output from the lamp power supply is controlled from the projection head using a
dedicated 9-pin RS232 connection. The lamp power supply power can be user adjusted and also automatically
adjusted using the LiteLOC feature to maintain constant light output. The connection can be disconnected
during servicing, allowing the lamp power supply to be operated and interrogated by a service person using a
laptop. For more information, refer to the CP4230 User Manual (P/N: 020-100621-xx).

1.3.3 Low Voltage Power Supply

The LVPS provides all of the power to the projector in full power mode, with the exception of the TPC which
is powered by the standby power supply.
• In full power mode the main rail supplies the Environmental Board (EVB), Intelligent Motor Control Boards
(IMCBs) and the Projector Intelligence Board (PIB).
• The 12V main rail supplies the ICP, the link decrypter, fans and pump, and lamp power supply (LPS) opto-
isolators.

1.3.4 Standby Power Supply

The standby power supply is a fanless 24V power supply that supplies power to the PIB, EVB, IMCB and the
TPC when the projector is in STANDBY mode.

1.3.5 Igniter

The igniter is located opposite the lamp compartment. It is powered by the 7kW lamp power supply located in
a separate enclosure. The lamp power supply connects to the igniter with an anode cable, which is routed along
the baseplate of the projector closest to the lamp door.
1-4 CP4230 Service Manual
020-100622-04 Rev. 1 (05-2016)