Advertisement
2.2 POWER SUPPLY UNIT
The Power Supply unit includes DC regulator, exhaust fan and interlock switch with
lump cover.
The Power Supply unit generates the voltage for the control circuit
and for the light source lamp
Although the outline of its function is shown below, please never disassemble the
power supply unit at the field maintenance service.
Power supply unit,
(1) Function block
INTERLOCK SW
i
AC IN
i
i
SAFTY
SWITCH
(overheat
protection)
CONNECT TO MAIN BOARD AND DRIVER BOARD
The Interlock switch is built for the safety purpose.
by opening the lamp cover at the bottom of main chassis.
The input signal from the safety switch is prepared for the protection of over heat. It stops the output to
the power for the Light source lamp In case of detecting over heat of Lamp Housing area.
from AC input.
Figure
5
POWER SW
MAIN
BOARD
CN 505
Figure
6
The Interlock switch will shut the supply of AC power
2-4
i
i
Advertisement
