Various Display Modes - Toshiba TLP411E Technical Training Manual

13. VARIOUS DISPLAY MODES

In this system, various LED display patterns are provided
in relation to the display modes shown in Table 5-7. Op-
erations from AC on to power on and power off will be
given below.
Data of the non-volatile memory are checked at the AC on,
and all the LED are turned on in red in the initial use. In
second or later use, all the LEDs are turned on in green and
the unit enters the standby status.
In the standby status, only the STANDBY/ON LED is
turned on in orange, and the main power is off and the lamp
power is also off.
When the power is on by pressing the STANDBY/ON key,
the unit enters a normal status in passing through follow-
ing processes.
1. The main power is on, and STANDBY/ON LED turns
on in green.
2. The lamp power is on, and LAMP LED blinks in green
for about 3s.
3. With the lamp turned on, LAMP LED turns on in
green and the unit enters the normal status.
4. If the lamp does not turn on, STANDBY/ON LED
turns on in orange, and the LAMP LED blinks for
about 1 min. and then the unit returns to the standby
status.
In the normal status, STANDBY/ON LED and the LAMP
LED are turned on in green, and the main power and the
lamp power are turned on.
ON LAMP
X X
Green Green
Red Red
Orange X
Green X
Green (Green)
Green Green
Green X
Orange (Green)
Red X
Red Red
Red Orange
Red X
Red X
Red X
Red X
Table 5-7 Table of various display modes
TEMP Contents
X Standby power abnormal
Green Non-volatile memory OK
Red Non-volatile memory NG
X Standby
X Lamp on
X Lamp heat up
X Lamp on
X Lamp off
X Lamp cooling down
X Main power abnormal
X Lamp not turns on
X Lamp life terminated
(Red) Air suction fan stop
(Orange) Exhaust fan stop
(Green) Fan filter open
Red Temperature sensor 1 abnormal
When the power is turned off by pressing the STANDBY/
ON key, the unit enters the standby status in passing through
following processes.
1. When the lamp power is turned off, STANDBY/ON
LED turns on in orange.
2. The LAMP LED blinks in green for about 1 min. For
this period the lamp can not be turned on again by the
STANDBY/ON key.
3. When blinking of the LAMP LED stops, only the
STANDBY/ON LED turns on in orange. After this
the lamp can be turned on again by the STANDBY/
ON key.
4. Moreover, the fan works for about 2 min. to lower
temperature of the unit. For this period the main
power is kept turning on.
5. When the main power turns off, the fan also stops
and returns to the standby status.
If an error occurs due to some causes, the STANDBY/ON
LED turns on in red, and the error information is kept in
the display status of the LAMP and TEMP LEDs. When
the error is detected, the unit enters the standby status after
cooling down process for about 2 min. In this case, if the
error status continues, the error display is also kept and
any key entry is not accepted.
For the error due to the over time of the lamp-on time, the
error is not released until the internal timer is reset (boot-
ing the system by turning the AC on with [–], [+], and [IN-
PUT] keys pressed at the same time) after replacement of
the lamp.
Status
at AC on
at AC on
at AC on
at off
at on
at on
during on
at off
at off
at/during on
at/during on
at on
at on
at on
always
always
X stands for off, ( ) stands for blinking.
5-11
Remedy
Repair
Normal
Initialization
Normal
Normal
Normal
Normal
Normal
Normal
Repair
Repair or preparation failure
Works after about 2500H
Repair
Repair
Close
Lowers temperature inside unit