E-55
When an Indicator is Lit or Blinking
ST
ATUS
SOURCE
ST
ANDBY
AUTO
MENU
QUICK
MENU
STATUS
STANDBY
STATUS
STANDBY
STATUS
STANDBY
STATUS
STANDBY
STATUS
STANDBY
The indicators on the projector’s control panel lit or blink to
notify of problems, as described below.
An indicator is also used to notify you of the currently set power
mode (under normal circumstances). See “Power Cable Con-
nections and Switching the Power On/Off” on page E-21.
Indicator status
What you should do
When the power is on
(Lit green)
Standby
(Lit amber)
Lit red
Blinks amber for 60 seconds, then lit am-
ber
Lit red
Lit red
Blinks red
(lit for 1 seconds/off for 1 seconds)
Lit red
Blinks red
(lit for 0.5 seconds/off for 0.5 seconds)
Lit amber
Blinks red
(lit for 0.5 seconds/off for 0.5 seconds)
When the lamp has burned out during use
Blinks amber for 90 seconds, then lit amber
When the lamp does not come on from the start
Lit amber
Blinks red
(lit for 1 seconds/off for 1 seconds)
It is time to replace the lamp.
Replace with a new lamp cartridge.
The lamp has reached the end of its service life. The power
will no longer turn on.
The projector can be used for 100 hours after the lamp has reached
the end of its service life.
Replace with a new lamp cartridge.
The lamp cover is open.
The lamp cover is not properly mounted. Mount it properly.
The temperature is abnormally high.
• The temperature protector has been activated. If the room tem-
perature is high, move the projector to a cool place. If the
projector’s internal temperature is high, check the cooling fan’s
ventilation slots and clean them if they are clogged.
• When the temperature protector is activated, the power turns
off and in some cases will not turn back on immediately. In this
case wait about 90 seconds, then try again.
The fan has stopped.
Unplug the power cable and contact a store that sells the U4-232/
U4-232h for repairs.
Should an indicator be in a condition other than normal or flash at a rate other than the aforementioned, disconnect the power
cable and contact your store of purchase.
Thermal Protector
When the temperature inside the projector becomes abnormally high, the STATUS indicator blinks red (0.5 seconds on/0.5
seconds off), the STANDBY indicator is a steady red, and at the same time the temperature protector operates and switches off
the power of the projector.
Should this happen, please take the following actions.
1. Switch off the power and disconnect the power plug from the wall outlet.
2. Check the following matters and take the required measures.
When the projector is being used in a location that has a high ambient temperature, set it up again in a cool location. Check the
outflow and intake holes and clean them if they are obstructed.
3. Wait about 60 minutes until the temperature of the projector drops.
If after having performed the above matters, the problem still has not been solved, please contact your store of purchase.
The lamp will not light.
Wait at least 90 seconds, then turn the power back on. If the
problem persists, unplug the power cord and contact a store
that sells the U4-232/U4-232h for repairs.
STATUS indicator
STANDBY indicator
STATUS
STANDBY
Summary of Contents for U4-232
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