Sanyo PDG-DHT100L Service Manual page 129

Troubleshooting
● Flow chart of projector condition
- Power Failure
- Fan Error
- Filter Error
- Shutter Error
- Lamp Cover Error
- Filter Cartridge Error
- Temperature Error
- Lamp Error
- System Error
(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 0
seconds.
Timing chart of drive signals
MAINS-SW ON
POWER KEY ON
H
ON-OFF
L
H
PFC_ON
L
H
ST_SW
L
H
DC_ON
L
MAX
FAN_SW1
MIN
MAX
FAN_SW2
MIN
H
BALLAST1_ON
L
H
BALLAST2_ON
L
H
LAMP1_ON
L
H
LAMP2_ON
L
(with AC power supply and Mains SW : ON)
AC OFF
<RECOVER>
(ON/OFF button
WARNING POWER ON
(Lamp : ON)
(20 sec.)
<ACCIDENT>
SERVICE
MODE
(A)
(B)
LAMP TIME
DISPLAY
(5 sec.)
POWER KEY OFF
Cooling time after power off.
- 129 -
-19-
(90 sec.)
STAND-BY COOLING
(Lamp error)
(ON/OFF button)
or SERIAL)
<ACCIDENT>
POWER OFF
(ON/STAND-BY button)
(with signal or any button)
SUSPEND
NORMAL
COUNTDOWN
(with signal
or any button)
(90 sec.)
SUSPEND
SUSPEND
COOLING
(Lamp : OFF)
(Lamp : OFF)
(Lamp : ON)
(no signal for 30 sec.)
(no signal for
user setting time)