ViewSonic Pj452 Projector User Manual

							ViewSonic PJ452 37  Item Description 
MyScreen Lock Using the buttons ▲/▼ turns on/off the MyScreen lock 
function. 
TURN ON 
						

							ViewSonic PJ452 38 
OPTION menu 
With the OPTION menu, items shown in the table below can 
be performed. 
Choose an item using the cursor buttons ▲/▼ on the 
projector or remote control, and press the cursor button ► 
on the projector or remote control, or the ENTER button on 
the remote control to progress, except for the items LAMP 
TIME and FILTER TIME. Then perform it referring to the 
following table. 
 
Item Description 
AUTO 
SEARCH Using the buttons ▲/▼ turns on/off the automatic signal 
search function. 
TURN ON 
						

							ViewSonic PJ452 39  OPTION menu (continued) 
Item Description 
LAMP TIME The lamp time is the time counted after the last resetting. It is 
shown in the OPTION menu as the use time of the lamp. 
Performing this item resets the time. 
Pressing the RESET button on the remote control or the button 
► on the projector for about 3 seconds displays a dialog to 
make sure. To perform reset, point at RESET using the button 
▲. 
RESET  CANCEL 
 
• Please reset the lamp time only when you have replaced the 
lamp, for correct messages about the lamp. 
• About the lamp replacement, please see the section “Lamp.” 
(	41, 42) 
FILTER TIME The filter time is the time counted after the last resetting. It is 
shown in the OPTION menu as the use time of the air filter. 
Performing this item resets the time. 
Pressing the RESET button on the remote control or the button 
► on the projector for about 3 seconds displays a dialog to 
make sure. To perform reset, point at RESET using the button 
▲. 
RESET  CANCEL 
 
• Please reset the filter time only when you have cleaned or 
replaced the air filter, for correct messages about the air filter. 
• About the caring the air filter, please see the section “Air 
filter.” (	43) 
  
						

							ViewSonic PJ452 40  OPTION menu (continued) 
Item Description 
SERVICE Choosing this item displays the SERVICE menu. 
Choose an item using the buttons ▲/▼, and press the button ► 
or the ENTER button to progress. 
 FAN SPEED 
						

							ViewSonic PJ452 41 
Maintenance  
Lamp 
WA R N I N G HIGH VOLTAGE
 HIGH TEMPERATURE  HIGH PRESSURE 
►The projector uses a high-pressure mercury glass lamp. The lamp can break with a loud 
bang, or burn out, if jolted or scratched, handled while hot, or worn over time. Note that 
each lamp has a different lifetime, and some may burst or burn out soon after you start 
using them. In addition, when the bulb bursts, it is possible for shards of glass to fly into 
the lamp housing, and for gas containing mercury to escape from the projector’s vent 
holes. 
►About disposal of a lamp    • This product contains a mercury lamp; do not put in 
trash. Dispose of in accord with environmental laws. 
For lamp recycling, go to www.lamprecycle.org. (in the US) 
For product disposal, contact your local government agency or www.eiae.org (in the 
US) or www.epsc.ca (in Canada). 
For more information, call your dealer. 
 
Disconnect 
the plug 
from the 
power outlet 
• If the lamp should break (it will make a loud bang when it does), unplug 
the power cord from the outlet, and make sure to request a replacement 
lamp from your local dealer. Note that shards of glass could damage the 
projector’s internals, or cause injury during handling, so please do not try 
to clean the projector or replace the lamp yourself. 
• If the lamp should break (it will make a loud bang when it does), 
ventilate the room well, and make sure not to breathe the gas that comes 
out of the projector vents, or get it in your eyes or mouth. 
• Before replacing the lamp, turn the projector off and unplug the power cord, then 
wait at least 45 minutes for the lamp to cool sufficiently. Handling the lamp while 
hot can cause burns, as well as damaging the lamp. 
 
• Never unscrew except the appointed (marked by an arrow) screws. 
• Do not open the lamp cover while the projector is suspended from above. 
This is dangerous, since if the lamp’s bulb has broken, the shards will fall out 
when the cover is opened. In addition, working in high places is dangerous, so 
ask your local dealer to have the lamp replaced even if the bulb is not broken. 
• Do not use the projector with the lamp cover removed. At the lamp replacing, 
make sure that the screws are screwed in firmly. Loose screws could result in 
damage or injury. 
 
• Use only the lamp of the specified type. 
• If the lamp breaks soon after the first time it is used, it is possible that 
there are electrical problems elsewhere besides the lamp. If this happens, 
contact your local dealer or a service representative. 
• Handle with care: jolting or scratching could cause the lamp bulb to burst during use. 
• If the indicators or a message prompts you to replace the lamp (see the 
section “Related Messages” and “Regarding the indicator Lamps”), replace the 
lamp as soon as possible. Using the lamp for long periods of time, or past the 
replacement date, could cause it to burst. Do not use old (used) lamps; this is a 
cause of breakage.  
						

							ViewSonic PJ452 42  When the indicators or a message prompts you to replace the lamp, replace the 
lamp as soon as possible.
  
1.
 Turn the projector off, and unplug the power cord. Allow the lamp to cool for 
at least 45 minutes. 
2.
 To prepare a new lamp, contact your dealer and tell the lamp type number = 
RLC-004. If the projector is mounted on the ceiling, or if the lamp has broken, 
also ask the dealer to replace the lamp. 
In the case of replacement by yourself,
  
3.
 After making sure that the projector has cooled adequately, 
slowly turn over the projector, so that the bottom is facing 
up. 
4.
 Please loosen the screw (marked by arrow). Then, unhook the 
claws of the lamp cover and remove the lamp cover.
  
5.
 Loosen the 2 screws (marked by arrow) of the lamp, and 
slowly pick up the lamp by the 
handles.
  
6.
 Insert the new lamp, and retighten 
firmly two screws that are loosened in 
the previous process to lock it in 
place.
  
7.
 Interlocking the 2 tabs of the lamp 
cover to the projector, position the 
lamp cover on the projector, and push 
the center point of two claws to fix the lamp cover. Then 
retighten firmly the screw of the lamp cover. 
8.
 Slowly turn the projector so that the top is facing up.
  
9.
 Turn the projector on, and reset the lamp time. (
	39) 
(1) While the projector running, press the MENU button to open 
the menu. 
(2) Choose the “LAMP TIME” on the OPTION menu (of Advanced Menu) 
using ▲/▼ button, then press and hold the RESET button or the ► button 
for 3 seconds. 
(3) Choose the “RESET” using the ▲ button. 
 
NOTE. 
• When the lamp has been replaced after the message of THE POWER WILL 
TURN OFF AFTER 0hr. is displayed, complete the following operation within 10 
minutes of switching power on. 
• Incorrectly resetting of the lamp timer (resetting without replacement, or neglect 
of resetting after replacement) will result in incorrect message functions.  
						

							ViewSonic PJ452 43 
Air filter 
WARNING  ►Do not replace the air filter during use or immediately after use. 
Handling while the projector is in a high temperature could cause a burn and/or 
malfunction to the projector. Before operating, make sure that the power switch is off, 
that the power cord is not plugged in, and that the projector is cool adequately. 
►Use only the air filter of the specified type. Do not use the projector with the air filter 
and filter cover removed. 
►Avoid wetting the projector or inserting liquids in the projector. It could result in a 
fire, an electric shock, and and/or malfunction to the projector. 
CAUTION  ►Please replace the air filter when it is damaged or too soiled, and also 
when you replace the lamp.   
When the indicators or a message prompts you to clean the air filter, clean the air filter as 
soon as possible. If the air filter becomes clogged by dust or the like, internal 
temperatures rise and the power may be automatically turned off for malfunction 
prevention. 
1. Disconnect all the connectors and adapters that were connected to the projector’s ports. 
Then slowly turn the projector so that the lens-side is facing up. Please be careful for a 
projector not to fall. While the projector is placed lens-side up, hold the projector. 
2. Remove the filter cover and the air filter. Hold the knobs while pulling out it. 
Usual filter cover 
   
Filter cover’s knobs
 
 
Air filter’s knob
  
Filter cover for bottom-up use 
 
   Filter cover’s knobs
 
3. Apply a vacuum cleaner to the vent of the projector for the air filter. And then slowly turn the 
projector bottom up. 
						

							ViewSonic PJ452 44  4. Apply a vacuum cleaner to the air filter and filter cover. Then set a new or cleaned 
air filter into place. 
In case of the filter cover for bottom-up use, remove the air filter from the filter cover 
and clean each. After cleaning, reattach the cleaned filter to the filter cover. 
       Claws              Air filter 
                   
 
Rail of air filter
      
       Filter cover for bottom-up use 
Please replace the air filter when it is damaged or too soiled
.  
To prepare a new air filter, contact your dealer.  
An air filter of specified type will come even with the replacement lamp for this 
projector. 
5. Position the air filter and filter cover into place. 
Usual filter cover 
Push the points of “PUSH” word   
with claws to fix the air filter 
               Tabs 
Filter cover for bottom-up use 
Interlocking the tabs, snap the filter cover into place. 
  
Ta b s
 
6. Slowly turn the projector so that the top is facing up, except for the case of bottom-up 
use. 
7. Turn the projector on, and reset the filter time using the FILTER TIME function of 
OPTION menu. (	39) 
 
NOTE  • Incorrectly resetting of the filter timer (resetting without replacement, or 
neglect of resetting after replacement) will result in incorrect message functions. 
Interlocking the tabs,   
snap the filter cover into place.  
						

							ViewSonic PJ452 45 
Other care  
WARNING  ► Do not take care of the projector during use or immediately 
after use. Handling while the projector is in a high temperature could cause a burn 
and/or malfunction to the projector. Before operating, make sure that the power 
switch is off, that the power cord is not plugged in, and that the projector is cool 
adequately. 
►Never try to care for the inside of the projector personally. Doing is so 
dangerous. 
►Avoid wetting the projector or inserting liquids in the projector. It could result 
in a fire, an electric shock, and and/or malfunction to the projector.   
• Don’t put a container containing water, cleaner or chemicals near the projector. 
• Don’t use aerosols or sprays. 
CAUTION  ► Please take right care of the projector according to the 
following. Incorrect care could cause not only an injury but adverse influence such 
as discoloration, peeling paint, etc.   
• Do not use cleaner or chemicals other than those listed below.   
• Do not polish or wipe with hard objects. 
 
Inside of the projector 
In order to ensure the safe use of your projector, please have it cleaned and 
inspected by your dealer about once every 2 years. 
 
Caring for the lens 
If the lens is flawed, soiled or fogged, it could cause deterioration of display 
quality. Please take care of the lens, being cautious of the handling.
 
1. Turn the projector off, and unplug the power cord. Allow the projector to cool 
sufficiently. 
2. After making sure that the projector is cool adequately, lightly wipe the lens 
with a commercially available lens-cleaning wipe. Do not touch the lens directly 
with your hand. 
 
Caring for the cabinet and remote control 
Incorrect care could have adverse influence such as discoloration, peeling paint, 
etc. 
1. Turn the projector off, and unplug the power cord. Allow the projector to cool 
sufficiently.
 
2. After making sure that the projector is cool adequately, lightly wipe with gauze 
or a soft cloth. 
If soiling is severe, dip soft cloth in water or a neutral cleaner dilute in water, 
and wipe lightly after wringing well. Then, wipe lightly with a soft, dry cloth.  
						

							ViewSonic PJ452 46 
Troubleshooting  
Related messages 
When the units power is on, messages such as those shown below may be 
displayed. When any such message is displayed on the screen, please respond as 
described below. If the same message is displayed after the treatment, or if a 
message other than the following appears, please contact your dealer or service 
company. 
Although these messages will be automatically disappeared around several 
minutes, it will be reappeared every time the power is turned on. 
 
Message Description 
NO INPUT IS DETECTED 
ON *** There is no input signal. 
Please confirm the signal input connection, and the status 
of the signal source. 
SYNC IS OUT OF RANGE 
ON ***  fH *****kHz  fV  
*****Hz 
The horizontal or vertical wavelength of the inputted 
signal is outside of the response parameters of this 
unit. 
Please confirm the specs for this unit or the signal source 
specs.