Introduction - Barco DP2K-12C Service Manual

17. Lamp power supply

17.1 Introduction

Functionality of the Lamp Power Supply
The front side of the LPS casing contains the input/output connectors and diagnostic LED's of the LPS unit. The rear side is equipped
with fans. The whole LPS module slides into the LPS compartment at the rear bottom of the projector and can be replaced easily.
To ignite the lamp the voltage on the output pins of the LPS unit is brought up to 140 volt. This high voltage will trigger the Start
Pulse Generator (SPG) to ignite the lamp. Once the lamp is ignited the voltage on the output pins of the LPS unit is dropped to the
typical arc voltage of the lamp.
Parts
B C
A
LAMP OUT
A
F G H I J
Image 17-1
A Captive screw.
B Lamp output pin "–".
C Lamp output pin "+".
D Status LEDs: "LAMP ON / LVPS OK".
E Mains input.
F Status LEDs, left and middle LED for internal use,
right LED : heartbeat
284
LPS UNIT 1
D E
MAINS
INPUT
K L
LPS MODULE
G Status LEDs: "ERR", "PFC OK" & "LPS OK".
H Socket for "CTRL OUT" cable - DP2K series.
I Socket for "ADDRESS" cable.
J Socket for CTRL IN" cable - DP2K series
K Socket for "CTRL OUT" cable - not used in DP2K series.
L Socket for CTRL IN" cable - not used in DP2K series
R5905043 DP2K-12C/11CX 19/02/2018
A
A