BOXLIGHT CP755ew User Manual

19462 Powder Hill Place
Poulsbo, WA 98370

800.762.5757

360.779.7901
www.boxlight.com

CP755ew

USER MANUAL

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Digital Multimedia Projector

Multimedia LCD Projecto

About User’s manual

Features

Thank you for purchasing the LCD projector.
Please read this user’s manual thoroughly to
ensure correct usage of the projector and its
features.
After reading, store this instruction manual in
a safe place for future reference.

1. Design with 3LCD optical system, provide you:
Bright image, natural color, smooth video
playback and gentle for your eyes.

2. Dynamic Contrast and 3D Comb Filter

3. Auto V keystone function, +/- 30 degrees.

4. Auto brightness control.

5. Auto ceiling function.

6. Support YPbPr signal.

The content of this manual is subject to change without period notice.
All rights reserved.

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Table of Contents

Multimedia LCD Projecto

Safety Instructions……………………………………………………

Checking the Package Content….…………...……………………

Before Use

Names and Function of Each Part

Main Unit.................................................………………………..

Keypad Control ...............……......................……………………

Rear View I/O Board ..............................……………..…………

Bottom View........................................………………….…........

Remote Control….....................................………………………

Inserting the batteries ............ ...........................……………….

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10

11
13
15
17
18
19

Installation

Setting up the projector……………………………………….…
Screen size and projection distance……………………………
Adjusting the image position..………….…………………………
Movin

How to connect

Desktop PC.............................……….......………………………

Laptop PC.....................................………………………... …….

USB Mouse............................……...……………………............

Video.......................................……………………………..........

the projector………………………………………..……

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Basic Operation

Multimedia LCD Projecto

Turning on the projector………………………………..…………
Adjusting the screen image……………….………………………
Turning off the power…………….………………………...……

Function of Menu

Keypad operating…………………………………..………………
Computer mode……………………………………..……….……
Video mode………………….……………………..………………

Maintenance and

Ceiling Mounted Installation Guide…………………………….
Cleaning the Projector/Lens……...………………….……………
Cleaning air filter…………………………………….…..…………
Lamp replacement………….……………………………….……
Indicators………………………………………….….……………

List of Support Displays Modes……………………………….

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32

33
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40

46
47
47
48
49

51

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About the symbols

Various symbols are used in this instruction manual and on the
product itself to ensure correct usage, to prevent danger to the
users and others, and to prevent property damage.
The meanings of these symbols are described below. It is
important that you read these descriptions thoroughly and fully
understand the contents.

Warning

Caution

This symbol indicates information that, if ignored,
could possibly result in personal injury or even
death.

This symbol indicates information that, if ignored,
could result in personal injury or physical damage.

Multimedia LCD Projecto

Typical Symbols

This symbol indicates an additional warning (including
cautions). An illustration is provided to clarify the contents (for
example: the illustration to the left indicates danger of electrical
shock

will be clearly indicated in an illustration or description near the
symbol (for example: the symbol to the left indicates that
disassembl

The contents will be clearly indicated in an illustration or
description near the symbol (for example: the symbol to the left
shows that the power plug should be disconnected from the

.

This symbol indicates a prohibited action. The contents

is

This symbol indicates a compulsory action.

ower outlet).

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Multimedia LCD Projecto

Warning

 If a problem should occur

 If smoke or strange odors arise, continued use could result in fire o

electrical shock. In such case, immediately turn off the power
switch and then disconnect the power plug from the power outlet.

fter making sure that the smoke or odor has stopped, contact you
dealer for repairs. Never attempt to make repairs yourself because
this is dangerous.

 Do not use this projector if there is no image or sound, or if the

sound is distorted. Continued use could result in fire or electrical
shock. In such case, immediately turn off the power switch;
disconnect the power plug from the power outlet and contact your
dealer.

 If water should enter the inside of this projector, immediately turn

off the power switch, disconnect the power plug from the power
outlet and contact your dealer.

 Do not install on an unstable surface. Do not install this projector

on an unstable surface such as a wobbly stand or incline because
this could result in the projector falling and causing injury.

 Do not open the cabinet. Never open the cabinet. There is high

voltage inside which can cause electrical shock. Contact your dealer
for internal inspection, adjustment and repair.

 Do not modify. Do not modify this projector because this could

result in fire or electrical shock.

 Do not use in the bathroom. Do not use this projector in the

bathroom because this could result in fire or electrical shock.

 Do not insert objects into the project.

 Do not insert metal objects through the ventilation openings, etc.,

of this projector or drop such objects inside because this could
result in fire or electrical shock.

 If a foreign object should enter this projector, immediately

turn off the power switch, disconnect the power plug from the
power outlet and contact your dealer.

 Continued use could result in fire or electrical shock. Use special

caution in households where children are present.

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Multimedia LCD Projecto

Warning

 Do not look through the lens when the lamp is on. Never look

through t he lens when the lamp is on. The powerful light could
adversely affect vision. Use special caution in households where
children are present.

 Avoid shock or impact on the projector.

 If the projector should fall, resulting in damage to the cabinet,

immediately turn off the power switch, disconnect the power plug
from the power outlet and contact your dealer.

 Continued use could result in fire or electrical shock.

 Do not place this projector in a container containing liquid.

Do not place flower vases, flowerpots, cups, cosmetics,
liquids such as water, etc., on top of this projector.

 Do not use any power cable except those supplied with the

projector. The use of any other power cable could result in fire

or electrical shock.

 Do not shine the laser beam onto yourself or other.

 The laser pointer function of projector remote control emits class

laser beam.Ⅱ

 Do not look directly into the laser beam outlet or direct the lase

beam at other people. Vision can be impaired if the laser beam
enters the eyes. Especially pay attention if children are present.

 High temperatures are generated when the lamp is lit; so do

not place objects in front of the lens.

his

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Multimedia LCD Projecto

Caution

of balance or falling and cause personal injury or damage the
projector.

 Do not block the ventilation openings.

 Do not block the ventilation openings of this projector.

Blocking ventilation could lead to internal overheating which
could result in fire.

 Do not place this projector on its side during use or push it into

a small, poorly ventilated location.

 Do not place this projector on a carpet or bedding or cover it

with a tablecloth, etc. Also, when installing this projector, make
sure the ventilation openings are at least 30cm(12in)
clearance around the projector.

 Care and maintenance. For safety purposes, disconnect the

power plug from the power outlet before starting the care and
maintenance of this projector.

 Battery usage.

 Replace the batteries with the same type only. Do not mix old

and new batteries; this could result in fire or personal injury due to
battery cracking or leakage.

 Make sure the plus and minus terminal s are correctly

aligned when loading the batteries.

 Incorrect loading could result in personal injury or contamination

of the surroundings due to battery cracking or leakage.

 Have the projector interior cleaned regularly.

 Contact your dealer to arrange for the service.

Accumulations of dust inside the projector can result in fire or
malfunction if not cleaned for an extended period.

 Ask your dealer for details about internal cleaning.

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Multimedia LCD Projecto

Caution

 Avoid installation in humid or dusty locations.

Do not install this projector in a humid or dusty location.
This could result in fire or electrical s hock.

 Do not handle the power cord roughly.

 Keep the power cord away from heaters; the heat could melt

the power cord and cause fire or electrical shock.

 Do not touch the power plug with wet hands; this could result

in electrical shock.

 When disconnecting the power plug, do not pull on the

power cord. This could damage the power cord and cause fire

or electrical shock. Always grip the plug when disconnecting.

 When the projector is not to be used for an extended

period. If the projector is not to be used for an extended period

because of travel, etc., disconnect the power plug from the
power outlet and replace lens cover.

not

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Multimedia LCD Projecto

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Location of product safety labels

Safety labels are used on or within the projector to alert you to
items or areas requiring your attention.

Business card

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Checking the Package Contents

□P

ojector

□Remote Cont

( included battery)

Multimedia LCD Projecto

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□Power Cord

□S-Video

□Speaker Cable

□RS232 (Optional)

□Video Cable

□

udio Cable

□Carrying Bag

(Optional)

□Computer cabl

□USB Cable

□Quick Start Guide

(included CD)

□Filter Sponge

□Convergence Lens

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Part Names and Function:

Main Unit

Outlet

4.Filter cover( bottom)

ventilation

1.Zoom ring

2.Focus

ring

Multimedia LCD Projecto

8.Control panel

Speaker

7.Lens cove

6.Foot adjust button

3.Front IR receiver 5.Front adjustable foot

1. Zoom Ring
Use the Zoom Ring to adjust the size of the projected image.
Rotate the Zoom Ring until the image is the desired size.

2. Focus Ring
Use the Focus Ring to focus the projector image.
Rotate the Focus Ring until the image is clear.

3. Front IR

eceiver

When using the remote control, point the remote control at this sensor.

4. Filte

cover

Prevents dust and other foreign particles from being drawn into projector.
Remove the Filter cover to clean the air filter.

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5.Front adjustable foot

Extend and retract to adjust the projection angle

Multimedia LCD Projecto

6.Foot ad

Lock/unlock the adjustable foot.

7.Lens cove

Attach when not using to protect the lens from becoming dirty or damaged.

8.Cont

Operating system.

ust button

ol panel (key pads)

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Keypad control

Multimedia LCD Projecto

1. Power

7. Keystone

5. Menu

3. Blank

1.Power button

Power on / operation mode, Standby mode, Cooling-down mode

8. Powerindicator

9. Lamp indicator

6. Menu-left/ right,
Menu-up/down

4.Auto

2. Input

Brightness function,when sensor detects the surrounding light
lower than 150 lux,”power button”will flash blue.

2. INPUT Computer source

Selects between RGB input source­Computer 1 → Computer 2(RGB or YPbPr) → AV → S-Video → Computer1
System will auto detect YPbPr or RGB signal in computer 2 port.

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3. Blank
Blanks the projected image. If the projector is left in blank mode for more
than 15 minutes, the projector will automatically shut down.

4. Auto
Automatically adjusts the setting to match the current input.

5. Menu
Display or hides the OSD main menu

6.Menu-up /down, Menu-right / left

Selecting OSD menu item up or down.
Selecting and adjusting the function of OSD menu item

7. Keystone
Adjusts the vertical keystone with menu-right,

8.Power indicator
Lights on or flashes to indicate the operating status of the projector (See Page 49)

Multimedia LCD Projecto

9. Lamp indicator

Indicate a problem in the internal projector temperature, lamp cover or
cooling down. (See Page 50)

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Rear View / IO Board

9.USB mouse connector

4.RS-232C

Multimedia LCD Projecto

12.Rear IR receiver

Inlet ventilation

11.Power switch 10.Power socket

1.Computer1 in

3.Monitor out 5.S-video

7.Audio out

1.Computer2/YPbPr in 6.Video in

8.Audio in

1. Computer in 1

Input Analog RGB video signal from a computer

2. Computer in 2 /YPbPr

When input signal from computer 2, it may encounter incorrect picture
color. Please press "Auto" button again. The picture will be corrected.

3. Monito

r out connector

Connect an external monitor to this connection view the Computer1
input.

4. Control (RS-232C)
Serial data port for controlling the projector with a computer or other RS-232
control device.

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