ViewSonic Pj750 Projector User Manual

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Screen Messages
Periodically, messages appear on-screen to inform you of certain conditions. Most screen messages 
disappear after three (3) minutes and display again when you turn on the projector. The table below 
identifies various screen messages and their meanings.
Table 4: Screen Messages 
Screen MessageMeaning or Action Required
CHANGE THE LAMP 
AFTER REPLACING THE LAMP, 
RESET THE LAMP TIMEThe lamp service life is nearing its end. Replace the 
lamp soon. This message displays after about 1300 
hours of lamp usage.
CHANGE THE LAMP 
AFTER REPLACING THE LAMP, 
RESET THE LAMP TIME
THE POWER WILL TURN OFF AFTER 
** HR.The lamp shuts off after approximately ** hours 
have elapsed. Replace the lamp before the indicated 
hours have elapsed.
CHANGE THE LAMP 
AFTER REPLACING THE LAMP, 
RESET THE LAMP TIME
THE POWER WILL TURN OFF AFTER 
0 HR.The lamp shuts off very soon because the remaining 
usage hours has elapsed. Replace the lamp 
immediately.
NO INPUT IS DETECTED The ViewSonic  PJ750 is not receiving a signal from 
the source. 
SYNC IS OUT OF RANGE The current horizontal or vertical frequency signal 
from the computer cannot be used by this projector.
CHECK THE AIR FLOW The sensor has detected restricted air flow or no air 
flow. Make sure the air vents are clear and the air 
filter is clean. 
						

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Remote Control Batteries
Replace the batteries when the remote control unit becomes difficult to operate (such as slow 
response when you push a button). Use 2 AA batteries as shown in Figure 8 below.        
To replace the batteries:
1Pull the plastic tab from the battery access door when using the new projector for the first time.
2Push the tab on the bottom of the remote unit and remove the battery cover.
3Gently remove the batteries from the holder and replace them with new batteries.
4Ensure that the positive and negative terminals (+ / -) are positioned correctly.
5Push the battery cover into place. The cover should click into place.
Cleaning Instructions
Projector Lens
Clean the lens with a damp, non-abrasive cloth. Apply a lens cleaning solution or a glass cleaning 
solution to the cloth. Do not spray a cleaning solution directly onto the lens. 
Projector Case
Make sure the projector is cool before cleaning. Clean the exterior case with a moist cloth using a 
mild detergent.
WARNING: Do not use alcohol, benzene, or other chemical cleaners which could damage the case.
Air-Filter
Clean or replace the air-filter after every 100 hours of use to prevent overheating, which could 
damage the projector.
1Make sure the projector is cool and the power cord is unplugged before beginning.
2Vacuum the air-filter.
WARNING: Never operate the projector without the air-filter; doing so will damage the projector.
Figure 8: Installing the Batteries 
						

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Attaching the Optional Handle
The ViewSonic PJ750 comes with an attachable handle. Follow the steps below to attach the handle.
The handle hooks are on the left side of the projector, 
as shown in the figure to the left. If you choose to use 
the attachable handle, follow the steps below 
carefully.
Caution: Never lift the projector by the handle 
without first ensuring that the handle is attached and 
fastened. Doing so may cause injury or damage to the 
projector
Figure 9: Attaching the Handle
To attach the handle:
1Lift one handle hook on the side of the projector.
2Pass one end of the handle through the handle 
hook.
3Buckle the end of the handle as shown.
4Repeat steps 1 through 3 to attach the other end of 
the handle.
Handle hooks 
						

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Customer Support
For the most expedient answer to your question, do the following: 
1Check Troubleshooting (on the previous page).
2For assistance contact your reseller.
3For further assistance see the contact information listed below. 
Ask your reseller to refer you to a service center if contact information for your country or region is 
not listed below:
NOTE: You will need to provide the serial number (on the back of the product)..
Country/Region Web site T = Telephone
F = FAXEmail
United States
Canadaviewsonic.com/
support
viewsonic.com/
supportT: (800) 688-6688
F: (909) 468-1202
T: (800) 688-6688
F: (909) [email protected]
[email protected]
United Kingdom viewsoniceurope.comT:  0800 833 648
F: (01293) [email protected]
Europe, Middle 
East, Baltic 
countries, and 
North Africaviewsoniceurope.com Contact your reseller [email protected]
Australia and New 
Zealandviewsonic.com.auT: +61 2 9929 3955
F: +61 2 9929 [email protected]
Singapore/India 
and Southeast Asiaviewsonic.com.sgT: 65 273 4018
F: 65 273 [email protected]
Other Asia/Pacific 
countries viewsonic.com.twT: 886 2 2246 3456
F: 886 2 8242 [email protected]
South Africa viewsonic.com/asiaT: 886 2 2246 3456
F: 886 2 8242 [email protected] 
						

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Limited Warranty
VIEWSONIC Projector
What the warranty covers:
ViewSonic® warrants its products to be free from defects in material and workmanship during the warranty period. If a 
product proves to be defective in material or workmanship during the warranty period, ViewSonic will at its sole option 
repair or replace the product with a like product. Replacement product or parts may include remanufactured or refurbished 
parts or components.
How long the warranty is effective:
ViewSonic projectors are warranted for two (2) years for all parts excluding the lamp, two (2) years for all labor, and ninety 
(90) days for the lamp from the date of the first consumer purchase.
Who the warranty protects:
This warranty is valid only for the first consumer purchaser.
What the warranty does not cover:
1. Any product on which the serial number has been defaced, modified or removed.
2. Damage, deterioration or malfunction resulting from:
a. Accident, misuse, neglect, fire, water, lightning, or other acts of nature, unauthorized product modification, or failure to fol low 
instructions supplied with the product.
b. Repair or attempted repair by anyone not authorized by 
ViewSonic.
c. Any damage of the product due to shipment.
d. Removal or installation of the product.
e. Causes external to the product, such as electric power fluctuations or failure.
f. Use of supplies or p a rts not meeting 
ViewSonic’s specifications.
g. Normal wear and tear.
h. Any other cause which does not relate to a product defect.
3. Removal, installation, and set-up service charges.
How to get service:
1. For information about receiving service under warranty, contact 
ViewSonic Customer Support. You will need to provide your 
product’s serial number.
2. To obtain warranted service, you will be required to provide (a) the original dated sales slip, (b) your name, (c) your address,  (d) a 
description of the problem, and (e) the serial number of the product.
3. Take or ship the product freight prepaid in the original container to an authorized 
ViewSonic service center or 
ViewSonic.
4. For additional information or the name of the nearest 
ViewSonic service center, contact 
ViewSonic. 
Limitation of implied warranties:
THERE ARE NO WARRANTIES, EXPRESS OR IMPLIED, WHICH EXTEND BEYOND THE DESCRIPTION CONTAINED 
HEREIN INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
PURPOSE.
Exclusion of damages:
VIEWSONIC’S LIABILITY IS LIMITED TO THE COST OF REPAIR OR REPLACEMENT OF THE PRODUCT. 
VIEWSONIC SHALL NOT BE LIABLE FOR:
1. DAMAGE TO OTHER PROPERTY CAUSED BY ANY DEFECTS IN THE PRODUCT, DAMAGES BASED UPON INCONVENIENCE, 
L O S S  O F  U S E  O F  T H E  P R O DUCT ,  L O S S  O F  T I M E ,  L O S S  O F  P R O F I T S ,  L O S S  O F  BUSINESS OPPORTUNITY, LOSS OF 
GOODWILL, INTERFERENCE WITH BUSINESS RELATIONSHIPS, OR OTHER COMMERCIAL LOSS, EVEN IF ADVISED OF THE 
POSSIBILITY OF SUCH DAMAGES.
2. ANY OTHER DAMAGES, WHETHER INCIDENTAL, CONSEQUENTIAL OR OTHERWISE.
3. ANY CLAIM AGAINST THE CUSTOMER BY ANY OTHER PARTY.
Effect of state law:
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Some 
states do not allow limitations on implied warranties and/or do not allow the exclusion of incidental or consequential 
damages, so the above limitations and exclusions may not apply to you.
Sales outside the U.S.A. and Canada: 
For warranty information and service on ViewSonic products sold outside of the U.S.A. and Canada, contact ViewSonic 
or your local ViewSonic dealer.
Projector Warranty (V2.1)  Release Date: 04-18-2001 
						

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Appendix
Power Cord Safety Guidelines
Caution: Use a power cable that is properly grounded. Always use an AC power cord that meets your country’s safety 
standard.
AC PLUG CORD PRECAUTIONS FOR THE UNITED KINGDOM
FOR YOUR SAFETY PLEASE READ THE FOLLOWING TEXT CAREFULLY.
IF THE FITTED MOULDED PLUG IS UNSUITABLE FOR THE SOCKET OUTLET THEN THE PLUG 
SHOULD BE CUT OFF AND DISPOSED OF SAFELY.
THERE IS A DANGER OF SEVERE ELECTRICAL SHOCK IF THE CUT OFF PLUG IS INSERTED INTO AN 
APPROPRIATE SOCKET.
If a new plug is to be fitted, please observe the wiring code as shown below.
If in any doubt, please consult a qualified electrician.
WA R N I N G :
 THIS APPLIANCE MUST BE EARTHED.
IMPORTANT:
 The wires in this mains lead are coloured in accordance with the following code: 
Green-and-Yellow: Earth
Blue: Neutral
Brown: Live
If the coloured wires of the mains lead of this appliance do not correspond with the coloured markings 
identifying the terminals in your plug, proceed as follows:
The wire which is coloured GREEN-AND-YELLOW must be connected to the terminal in the plug which is 
marked by the letter E or by the Earth symbol or coloured GREEN or GREEN-AND-YELLOW.
The wire which is coloured BLUE must be connected to the terminal in the plug which is marked with the letter 
N or coloured BLACK. The wire which is coloured BROWN must be connected to the terminal in the plug 
which is marked with the letter L or coloured RED.
IMPORTANT NOTICE CONCERNING POWER CORD SELECTION
The power cord set for this unit has been enclosed and has been selected according to the country of 
destination and must be used to prevent electric shock. Use the following guidelines if it is necessary to 
replace the original cord set, or if the cord set is not enclosed. 
The female receptacle of the cord set must meet CEE-22 requirements and will look like (Figure A1 below):
For the United States and Canada
In the United States and Canada the male plug is a NEMA5-15 style (Figure A2), UL Listed, and CSA 
Labeled. For units which are mounted on a desk or table, type SVT or SJT cord sets may be used. For units 
which sit on the floor, only SJT type cord sets may be used. The cord set must be selected according to the 
current rating for your unit. Please consult the table below for the selection criteria for power cords used in the 
United States and Canada.
For European Countries
In Europe you must use a cord set which is appropriate for the receptacles in your country. The cord set is 
HAR-Certified, and a special mark that will appear on the outer sheath, or on the insulation of one of the inner 
conductors.
If you have any questions conc erning which proper power cord to use, please consult with the dealer from 
whom you have purchased the product.USA .............................. UL
Canada ......................... CSA
Germany ...................... VDESwitzerland ................... SEV
Britain............................ BASE/BS
Japan ............................ Electric Appliance Control Act
Cord Type Size of Conductors in Cord Maximum Current Rating of UnitSJT 18 AWG
16 AWG
14 AWG10 Amps
12 Amps
12 Amps
SVT 18 AWG
17 AWG10 Amps
12 Amps
Figure A1
Figure A2 
						

							ViewSonic Corporation