Regarding The Indicator Lamps - ViewSonic PJ452 - LCD XGA Projector-4.9LBS Service Manual

6-11 Regarding the indicator lamps

Lighting and flashing of the POWER indicator, the LAMP indicator, and the TEMP indicator have the mean-
ings as described in the table below. Please respond in accordance with the instructions with in the table.
POWER LAMP
indicator indicator
Lighting Turned
In Orange off
Blinking Turned
In Green off
Lighting Turned
In Green off
Blinking Turned
In Orange off
Blinking (discre-
In Red tionary)
Blinking
In Red
Lighting
or
In Red
Lighting
In Red
Blinking
In Red
Blinking
or
In Red
Lighting
In Red
Blinking
In Red
Turned
or
off
Lighting
In Red
Blinking
In Red
Turned
or
off
Lighting
In Red
Lighting Alternative
In Green blinking in Red
Lighting Simultaneous
In Green blinking in Red
NOTE • When the interior portion has become overheated, for safety purposes, the power source is automati-
cally turned off, and the indicator lamps may also be turned off. In such a case, press the " " (OFF) side of the
power switch, and wait at least 45 minutes. After the projector has suffi ciently cooled down, please make con-
fi rmation of the attachment state of the lamp and lamp cover, and then turn the power on again.
ViewSonic Corporation
TEMP
indicator
Turned The projector is in a standby state.
off
Turned The projector is warming up.
off Please wait.
Turned The projector is in an on state.
off Ordinary operations may be performed.
Turned The projector is cooling down.
off Please wait.
The projector is cooling down. A certain error has been detected.
(discre-
Please wait until the POWER indicator finishes blink, and then perform the proper
tionary)
response measure using the item descriptions below as reference.
The lamp does not light, and there is a possibility that interior portion has
become heated.
Please turn the power off, and allow the unit to cool down at least 20 minutes. After
the projector has suffi ciently cooled down, please make confi rmation of the following
Turned items, and then turn the power on again.
off • Is there blockage of the air passage aperture?
• Is the air fi lter dirty?
• Does the peripheral temperature exceed 35°C?
If the same indication is displayed after the treatment, please change the lamp by
referring to the section "Lamp"
The lamp cover has not been properly fi xed (attached).
Please turn the power off, and allow the unit to cool down at least 45 minutes. After
Turned
the projector has suffi ciently cooled down, please make confi rmation of the attachment
off
state of the lamp cover. After performing any needed maintenance, turn the power on
again.
The cooling fan is not operating.
Please turn the power off, and allow the unit to cool down at least 20 minutes. After
Blinking
the projector has suffi ciently cooled down, please make confi rmation that no foreign
In Red
matter has become caught in the fan, etc. and then turn the power on again.
If the same indication is displayed after the treatment, please replace a fan.
There is a possibility that the interior portion has become heated.
Please turn the power off, and allow the unit to cool down at least 20 minutes. After
the projector has suffi ciently cooled down, please make confi rmation of the following
items, and then turn the power on again.
Lighting
• Is there blockage of the air passage aperture?
In Red
• Is the air fi lter dirty?
• Does the peripheral temperature exceed 35°C?
If the same indication is displayed after the treatment, please set the HIGH at the
FAN SPEED of the item SERVICE of the OPTION menu.
There is a possibility that the interior portion has become overcooled.
Please use the unit within the usage temperature parameters (5°C to 35°C). After the
treatment, resent the power to ON.
If the same indication is displayed after the treatment, please make sure the wire
connection of the connectors E301 and E302 on the PWB assembly MAIN.
It is time to clean the air fi lter.
Please immediately turn the power OFF, and clean or change the air fi lter by referring
to the section "Air Filter". After cleaning or changed the air filter, please be sure to
reset the fi lter timer. After the treatment, resent the power to ON.
Description
Confidential - Do Not Copy
28
PJ452