Ac Filter, Ac-Dc Power Board - Christie LX1750C Service Manual

Troubleshooting

AC filter, AC-DC power board

AC
K6A
F602 K6C
SW901
F601
K6B
MAINS
SWITCH
F603 K6D
AC FILTER
● Flow chart of projector condition
(with AC power supply and Mains SW : ON)
AC OFF
<RECOVER>
WARNING
(20 sec.)
<ACCIDENT>
SERVICE
MODE
(A)
(B)
LAMP TIME
DISPLAY
(15 sec.)
K6E
IC631
SWITCHING
AC-DC POWER
K16A
PFC-1
K16A
PFC-2
(90 sec.)
STAND-BY COOLING
(Lamp error)
(ON/OFF button
or SERIAL)
<ACCIDENT>
POWER ON POWER OFF
(Lamp : ON)
(ON/STAND-BY button)
(with signal or any button)
SUSPEND
NORMAL
COUNTDOWN
(with signal
or any button)
(90 sec.)
SUSPEND
SUSPEND
COOLING
(Lamp : OFF)
IC632
T632
POWER
CONVERTER
CONTROL
TRANSFORMER
PC631
Q641/Q642
PC632
IC633
T633
POWER
CONVERTER
CONTROL
TRANSFORMER
PC633
(Lamp : OFF)
(ON/OFF button)
(Lamp : ON)
(no signal for 30 sec.)
(no signal for
user setting time)
-158-
D647
24.5V
Power-On:H
Standby: L
VR631
Q647
PFC_SW
D648
S6V
D649
S9.6V
D652
S-6V
D651
16V
Q648
24.5V
(A) : Press and hold MENU and SELECT
buttons on the projector for more
than 3 seconds
(B) : Press and hold POWER ON/STAND-
BY button on the projector or on the
remote control unit for more than 20
seconds.
LX1750 Service Manual
020-000643-01 Rev.1 (01-2014)
K6F
1-4
30
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9
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