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Troubleshooting
Power (PFC)
K16A
RL1601
1
2
PFC12V1
Q1607
RL1651
PFC12V2
Q1657
PFC1_SW_PFC2_SW
Lamp-On: H
PF_PFC1/PF_PFC2
Error: L
K16E
K47E
● Flow chart of projector condition
(with AC power supply and Mains SW : ON)
AC OFF
<RECOVER>
WARNING
<ACCIDENT>
SERVICE
MODE
(A)
(B)
LAMP TIME
DISPLAY
(15 sec.)
PFC1
CIRCUIT
PFC2
CIRCUIT
IC1601
IC1651
PC1601
PC1651
Q1608
Q1658
7
6
1
2
7
6
1
2
(90 sec.)
STAND-BY
COOLING
(Lamp error)
(ON/OFF button
or SERIAL)
<ACCIDENT>
POWER ON
POWER OFF
(Lamp : ON)
(ON/STAND-BY button)
(20 sec.)
(with signal or any button)
SUSPEND
NORMAL
COUNTDOWN
(with signal
or any button)
(90 sec.)
SUSPEND
SUSPEND
COOLING
(Lamp : OFF)
K16B
K16C
Check that the lamp drive signals
(PFC1_SW, PFC2_SW) are correct.
Lamp-On: H
If the power failure occurs on the PFC1 or
PCF2 circuit, the detection signal (PF_PFC1,
PF_PFC2) becomes Low.
PFC
MAIN
(Lamp : OFF)
(ON/OFF button)
(Lamp : ON)
(no signal for 30 sec.)
(no signal for
user setting time)
-156-
CN1B
CN3B
BALLAST1
CN2B
CN1C
CN3C
BALLAST2
CN2C
(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.
LAMP1
LAMP2
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