ViewSonic CDP4235 User manual

i

CDP3235

CDP4235

CDP4235-T

CDP4635

CDP4635-T

CDX5550-L

User Guide

Model No. VS14694/VS14693/VS14709/VS14692/VS14710/VS14691

IMPORTANT: Please read this User Guide to obtain important information on installing

and using your product in a safe manner, as well as registering your product for future

service. Warranty information contained in this User Guide will describe your limited

coverage from ViewSonic Corporation, which is also found on our web site at http://

www.viewsonic.com in English, or in specic languages using the Regional selection

box in the upper right corner of our website. “Antes de operar su equipo lea cu

idadosamente las instrucciones en este manual”

i

Compliance Information

For U.S.A.

This device complies with part 15 of FCC Rules. Operation is subject to the following two conditions: (1) this

device may not cause harmful interference, and (2) this device must accept any interference received, including

interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part

15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in

a residential installation.

This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in

accordance with the instructions, may cause harmful interference to radio communications. However, there is

no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful

interference to radio or television reception, which can be determined by turning the equipment off and on, the

user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Warning: You are cautioned that changes or modications not expressly approved by the party responsible for

compliance could void your authority to operate the equipment.

For Canada

This Class B digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

CE Conformity for European Countries

The device complies with the EMC Directive 2004/108/EC and Low Voltage Directive 2006/95/EC.

Following information is only for EU-member states:

The mark shown to the right is in compliance with the Waste Electrical and Electronic Equipment

Directive 2002/96/EC (WEEE).

The mark indicates the requirement NOT to dispose the equipment as unsorted municipal waste, but

use the return and collection systems according to local law.

ii

Important Safety Instructions

1. Read these instructions completely before using the equipment.

2. Keep these instructions in a safe place.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this equipment near water. Warning: To reduce the risk of re or electric shock, do not expose this

apparatus to rain or moisture.

6. Do not block any ventilation openings. Install the equipment in accordance with the manufacturer’s instructions.

7. Do not install near any heat sources such as radiators, heat registers, stoves, or other devices (including

ampliers) that produce heat.

8. Do not attempt to circumvent the safety provisions of the polarized or grounding-type plug. A polarized plug

has two blades with one wider than the other. A grounding type plug has two blades and a third grounding

prong. The wide blade and the third prong are provided for your safety. If the plug does not t into your outlet,

consult an electrician for replacement of the outlet.

9. Protect the power cord from being tread upon or pinched, particularly at the plug, and the point where if

emerges from the equipment. Be sure that the power outlet is located near the equipment so that it is easily

accessible.

10. Only use attachments/accessories specied by the manufacturer.

11. Use only with the cart, stand, tripod, bracket, or table specied by the manufacturer, or sold with

the equipment. When a cart is used, use caution when moving the cart/equipment combination to

avoid injury from tipping over.

12. Unplug this equipment when it will be unused for long periods of time.

13. Refer all servicing to qualied service personnel. Service is required when the unit has been damaged in any

way, such as: if the power-supply cord or plug is damaged, if liquid is spilled onto or objects fall into the unit,

if the unit is exposed to rain or moisture, or if the unit does not operate normally or has been dropped.

iii

Declaration of RoHS Compliance

This product has been designed and manufactured in compliance with Directive 2002/95/EC of the European

Parliament and the Council on restriction of the use of certain hazardous substances in electrical and electronic

equipment (RoHS Directive) and is deemed to comply with the maximum concentration values issued by the

European Technical Adaptation Committee (TAC) as shown below:

Substance

Proposed Maximum Concentration

Actual Concentration

Lead (Pb) 0,1% < 0,1%

Mercury (Hg) 0,1% < 0,1%

Cadmium (Cd) 0,01% < 0,01%

Hexavalent Chromium (Cr6+) 0,1% < 0,1%

Polybrominated biphenyls (PBB) 0,1% < 0,1%

Polybrominated diphenyl ethers (PBDE) 0,1% < 0,1%

Certain components of products as stated above are exempted under the Annex of the RoHS Directives as noted

below:

Examples of exempted components are:

1. Mercury in compact uorescent lamps not exceeding 5 mg per lamp and in other lamps not specically

mentioned in the Annex of RoHS Directive.

2. Lead in glass of cathode ray tubes, electronic components, uorescent tubes, and electronic ceramic parts

(e.g. piezoelectronic devices).

3. Lead in high temperature type solders (i.e. lead-based alloys containing 85% by weight or more lead).

4. Lead as an allotting element in steel containing up to 0.35% lead by weight, aluminium containing up to 0.4%

lead by weight and as a cooper alloy containing up to 4% lead by weight.

iv

Copyright Information

®

ViewSonic

®

, the three birds logo, OnView

®

, ViewMatch

™

, and ViewMeter

®

are registered trademarks of ViewSonic

®

Corporation.

Disclaimer: ViewSonic

®

Corporation shall not be liable for technical or editorial errors or omissions contained

herein; nor for incidental or consequential damages resulting from furnishing this material, or the performance or

use of this product.

In the interest of continuing product improvement, ViewSonic

®

Corporation reserves the right to change product

specications without notice. Information in this document may change without notice.

No part of this document may be copied, reproduced, or transmitted by any means, for any purpose without prior

written permission from ViewSonic

®

Corporation.

Product Registration

To meet your future needs, and to receive any additional product information as it becomes available, please

register your product on the Internet at: www.viewsonic.com.

For Your Records

Product Name:

Model Number:

Document Number:

Serial Number:

Purchase Date:

CDP3235/CDP4235/CDP4235-T/CDP4635/CDP4635-T/CDX5550-L

ViewSonic LCD Monitor

VS14694/VS14693/VS14709/VS14692/VS14710

/VS14691

CDP3235_CDP4235_CDP4235-T_CDP4635_CDP4635-T_CDX5550-L_

UG_ENG Rev. 1C 05-16-13

Product disposal at end of product life

ViewSonic respects the environment and is committed to working and living green. Thank you for being part of

Smarter, Greener Computing. Please visit ViewSonic website to learn more.

USA & Canada: http://www.viewsonic.com/company/green/recycle-program/

Europe: http://www.viewsoniceurope.com/uk/kbase/article.php?id=639

Taiwan: http://recycle.epa.gov.tw/recycle/index2.aspx

v

Table Of Contents

1. Unpacking and Installation ............................................................................................................1

1.1. Unpacking ................................................................................................................................1

1.2. Package Contents ....................................................................................................................1

1.3. Installation Notes ...................................................................................................................... 1

1.4. Installing and Removing Table Stands (optional) .....................................................................2

1.5. Installing and Removing OPS module (CP4235/CDP4635/CDX5550-L series) (optional) ......3

1.6. Mounting on a Wall ................................................................................................................... 4

2. Parts and Functions .......................................................................................................................5

2.1. Control Panel ...........................................................................................................................5

2.2. Input/Output Terminals .............................................................................................................6

2.3. Remote Control ........................................................................................................................7

2.3.1. General functions ...........................................................................................................7

2.3.2. Inserting the batteries in the remote control ................................................................... 8

2.3.3. Handling the remote control ...........................................................................................8

2.3.4. Operating range of the remote control ...........................................................................8

3. Connecting External Equipment ...................................................................................................9

3.1. Using the Switch Cover ............................................................................................................9

3.2. Connecting External Equipment (DVD/VCR/VCD) ..................................................................9

3.2.1. Using COMPONENT video input .................................................................................10

3.2.2. Using HDMI video input ...............................................................................................10

3.3. Connecting a PC ....................................................................................................................11

3.3.1. Using VGA input ...........................................................................................................11

3.3.2. Using DVI input ............................................................................................................11

3.3.3. Using HDMI input .........................................................................................................12

3.4. External Audio Connection .....................................................................................................13

3.4.1. Connecting external speakers .....................................................................................13

3.4.2. Connecting an external audio device ...........................................................................13

3.5. Connecting Multiple Displays in a Daisy-chain Conguration ................................................14

3.5.1. Video connection .........................................................................................................14

3.5.2. Audio connection .........................................................................................................14

4. OSD Menu ......................................................................................................................................15

4.1. Navigating the OSD Menu ....................................................................................................15

4.1.1. Navigating the OSD menu using the remote control .................................................... 15

4.1.2. Navigating the OSD menu using the display’s control buttons ....................................15

4.2. OSD Menu Overview .............................................................................................................15

4.2.1. PICTURE menu ...........................................................................................................15

4.2.2. SCREEN menu ............................................................................................................16

4.2.3. AUDIO menu ................................................................................................................ 17

vi

4.2.4. PIP menu .....................................................................................................................17

4.2.5. CONFIGURATION1 menu ...........................................................................................18

4.2.6. CONFIGURATION2 menu ...........................................................................................19

4.2.7. CONFIGURATION3 menu ...........................................................................................20

4.2.8. ADVANCED OPTION menu ........................................................................................21

5. Input Mode .....................................................................................................................................23

6. Cleaning and Troubleshooting ....................................................................................................24

6.1. Cleaning .................................................................................................................................24

6.2. Troubleshooting ...................................................................................................................... 25

7. TechnicalSpecications ..............................................................................................................26

1

1. Unpacking and Installation

1.1. Unpacking

• This product is packed in a carton, together with the standard accessories.

• Any other optional accessories will be packed separately.

• Due to the size and weight of this display it is recommended for two people to move it.

• After opening the carton, ensure that the content is in good condition and complete.

1.2. Package Contents

Please verify that you received the following items with your package content:

• CD ROM (Optional)

• Remote control with AAA batteries

• Power cord (1.8 m)

• VGA cable (1.8 m)

• Quick Installation Guide

• Power switch cover

• Screw for Power switch cover

(M3x8)

• BNC-to-RCA adapter (x3)

• USB cable (CDP4635-T/

CDP4635-T)

For EU For China

For North America For UK

*

* *

*

POWER

SMART

VIDEO

SOURCE

PIP

INPUTON/OFF CHANGE

BRIGHTNESSCONTRAST

DISPLAY

AUTO

ADJUST

MUTE

VOL UP

VOL DOWN

EXIT

MENU

SET

AUDIO

SOURCE

CD ROM (Optional)

Power switch cover

(Exclusive of CDX5550-L)

Remote Control

and AAA Batteries

Screw for Power switch cover

(M3 x 8) x 1

(Exclusive of CDX5550-L)

BNC-RCA adapter x 3

Video Signal Cable

(D-SUB to D-SUB Cable)

NOTES:

• Please make sure that for all other regions, apply a power cord that conforms to the AC voltage of the power socket and has been

approved by and complies with the safety regulations of the particular country.

• You might like to save the package box and packing material for shipping the display.

1.3. Installation Notes

• Due to the high power consumption, always use the plug exclusively designed for this product. If an extended line is required, please

consult your service agent.

• The product should be installed on a at surface to avoid tipping. The distance between the back of the product and the wall should

be maintained for proper ventilation. Avoid installing the product in the kitchen, bathroom or any other places with high humidity so as

not to shorten the service life of the electronic components.

• The product can normally operate only under 3000m in altitude. In installations at altitudes above 3000m, some abnormalities may be

experienced.

* The supplied power cord varies depending on destination.

USB cable

2

1.4. Installing and Removing Table Stands (optional)

To install table stands:

1. Power off the display.

2. Spread a protective sheet on a at surface.

3. Grab the carrying handles and place the display face-down on the protective sheet.

4. After inserting the stand in the guide block, tighten the screws on both sides of the display.

NOTE: The long-end side of the stand should face to the front while installing.

Thumbscrews

Carrying handle

Longer portions face the front

Table stand

CDP3235: STND-022

CDP4235/CDP4635:STND-020

CDX5550-L : STND-021

Carrying handle

Thumbscrews

Table stand

To remove table stands:

1. Power off the display.

2. Spread a protective sheet on a at surface.

3. Grab the carrying handles and place the display face-down on the protective sheet.

4. Remove screws using a screwdriver and place them in a safe place for reuse.

3

1.5. Installing and Removing OPS module (CDP4235/CDP4635/CDX5550-L series) (optional)

To install OPS Module:

1. Power off the display.

2. Remove the cover of OPS after take screw off.

3. Insert OPS module and then x by screw.

NOTE: Keep the OPS cover for future use.

Screw

OPS

To remove OPS Module:

1. Power off the display.

2. Remove screw and plug out OPS module.

3. Install OPS cover and then x by screw.

4

1.6. Mounting on a Wall

To mount this display to a wall, you will have to obtain a standard wall-mounting kit (commercially available). We recommend using a

mounting interface that complies with TUV-GS and/or UL1678 standard in North America.

CDP3235/CDP4235/CDP4635 series

100

200

200 100

Protective Sheet

Tabletop stand

Table

400

Protective Sheet

Tabletop standTable

CDX5550-L

1. Lay a protective sheet on a table, which was wrapped around the display when it was packaged, beneath the screen surface so as

not to scratch the screen face.

2. Ensure you have all accessories for mounting this display (wall mount, ceiling mount, table stand, etc).

3. Follow the instructions that come with the base mounting kit. Failure to follow correct mounting procedures could result in damage to

the equipment or injury to the user or installer. Product warranty does not cover damage caused by improper installation.

4. For the wall-mounting kit, use M6 mounting screws (having a length 10 mm longer than the thickness of the mounting bracket) and

tighten them securely.

Caution:

To prevent the display from falling:

• For wall or ceiling installation, we recommend installing the display with metal brackets which are commercially available. For detailed

installation instructions, refer to the guide received with the respective bracket.

• To lessen the probability of injury and damage resulting from fall of the display in case of earthquake or other natural disaster, be sure

to consult the bracket manufacturer for installation location.

Ventilation Requirements for enclosure locating

To allow heat to disperse, leave space between surrounding objects

as shown in the diagram below.

100 mm 100 mm

100 mm

5

2. Parts and Functions

2.1. Control Panel

MUTE INPUT

MENU

1

9

10

2 3 4 5 6 7 8

CDP3235/CDP4235/CDP4635 series

5

4

3

21 6 7

8

CDX5550-L

9

MENU

10

1

POWER button

Use this button to turn the display on or put the display to

standby.

2

MUTE button

Switch the audio mute ON/OFF.

3

INPUT button

• Use this button to select the input source.

• When the On Screen Display menu is active, this is also

used as the [SET] button.

4

[ ] button

Increase the adjustment while OSD menu is on, or increase

the audio output level while OSD menu is off.

5

[ ] button

Decrease the adjustment while OSD menu is on, or

decrease the audio output level while OSD menu is off.

6

[ ] button

Move the highlight bar up to adjust the selected item while

OSD menu is on.

7

[ ] button

Move the highlight bar down to adjust the selected item

while OSD menu is on.

8

MENU button

Return to previous menu while OSD menu is on, or to

activate the OSD menu when OSD menu is off.

NOTE: “Keyboard Control Lock Mode” This function

completely disables the access to all Keyboard Control

functions. To enable or disable the keyboard control

lock, press both [

] and [ ] buttons and hold down

continuously for more than 3 (three) seconds.

9

Remote control sensor and power status indicator

• Receives command signals from the remote control.

• Indicates the operating status of the display:

- Lights green when the display is turned on

- Lights red when the display is in standby mode

- Lights amber when the display enters DPMS mode

- When {SCHEDULE} is enabled, the light blinks green

and red

- If the light blinks red, it indicates that a failure has been

detected

- Off when the main power of the display is turned off

10

OPS slot (exclusive of CDP3225)

Expansion slot adapter for Open Pluggable

Specication(OPS) card

6

2.2. Input/Output Terminals

(OUT)

CDP3235

CDP4235/CDP4635 series

CDP3235

CDP4235/CDP4635/CDX5550-L series

16

1 2 3 4 6 7 9 1110 13 141085

15

(IN)

(OUT)

Pr Pb Y

(IN)

(OUT)

1

12

(OUT)

12 3 4 6 7 9 1110 13 141085

(IN)

(OUT)

3

2

Pr Pb Y

(IN)

(OUT)

1

12

3

2

15

CDX5550-L

1

MAIN POWER SWITCH

Press to switch the main power on/off.

2

AC IN

Connect the supplied power cord to the wall outlet.

3

RS232C (OUT/IN)

RS232C network input/output connection for the use of loop-

through function.

4

RJ-45

LAN control function for the use of remote control signal

from control center.

5

VGA OUT (D-Sub)

Output the VGA signal from the VGA IN (D-Sub).

6

DVI-D IN

Connect the DVI-D output of a PC, or the HDMI output of an

AV device by using a DVI-HDMI cable.

7

HDMI IN

Connect the HDMI output of an AV device, or the DVI-D

output of a PC by using a DVI-HDMI cable.

8

VGA IN (D-Sub)

Connect the computer VGA output.

9

COMPONENT IN (BNC)

Connect the component YPbPr output from external AV

device.

10

AUDIO IN 1, 2, 3

Connect audio input from external AV device.

• AUDIO IN 1: 3.5mm stereo phone jack

• AUDIO IN 2, 3: RCA phone jack

11

VIDEO IN/OUT

• S-VIDEO IN (Mini DIN 4 pin): Connect the S-VIDEO (Y/

C separate signal) input.

• VIDEO IN (BNC): Connect the composite video signal

input.

• VIDEO OUT (BNC): Connect the composite video signal

output from VIDEO IN (BNC).

12

AUDIO OUT R/L (RCA)

Connect the audio signal output from AUDIO IN 1, 2, or 3

jack to an external AV device.

13

SPEAKERS OUT R/L

Connect the audio output to external speakers.

14

SPEAKER SWITCH

Press to switch the internal speaker on/off.

15

KENSINGTON LOCK

For security and theft prevention.

16

USB-B

Touch connector to PC.

7

2.3. Remote Control

2.3.1. General functions

POWER

SMART

VIDEO

SOURCE

PIP

INPUTON/OFF CHANGE

BRIGHTNESSCONTRAST

DISPLAY

AUTO

ADJUST

MUTE

VOL UP

VOL DOWN

EXIT

MENU

SET

AUDIO

SOURCE

1

10

11

12

13

14

15

16

17

18

19

20

2

3

4

5

6

7

8

9

1

[POWER] button

Press to switch on the display from standby mode. Press

again to turn it off and back into standby mode.

2

[SMART] button

Press to activate Smart Menu. Press [ ] or [ ] button to

select menu options. Press [SET] button to conrm and exit

the selection.

• Standard: Used for normal images (factory setting)

• Highbright: Used for moving image such as Video

• sRGB: Used for text based images

3

[PIP] (Picture In Picture) button

[ON/OFF]: Turn PIP mode ON/OFF.

[INPUT]: Select the input signal for the sub-picture.

[CHANGE]: Toggle between the main picture and sub

picture.

4

[CONTRAST] button

Press to activate Contrast Menu. Press [ ] or [ ] button to

adjust the value. Press [MENU] button to conrm and exit.

5

[DISPLAY] button

Press to turn on/off the information OSD displayed on the

upper right corner of the screen.

6

[ ] button

• Press to move the selection left in OSD menu.

• Press to decrease the value in OSD menu.

• Press to move the sub-picture left in PIP mode.

7

[SET] button

Press to activate the setting inside the OSD menu.

8

[AUTO ADJUST] button

Press to run the Auto Adjust function.

NOTE: This button is functional for VGA input only.

9

[MUTE] button

Press to turn the mute function on/off.

10

[VIDEO SOURCE] button

Press to toggle Video Source Menu. Press [ ] or [

] button to select one of the video sources among HDMI,

DVI-D, VGA, DVD / HD, VIDEO-S, or VIDEO . Press [SET]

button to conrm and exit.

11

[AUDIO SOURCE] button

Press to toggle Audio Source Menu. Press [ ] or [ ] button

to select one of the audio sources among HDMI, AUDIO1,

AUDIO2, or AUDIO3. Press [SET] button to conrm and

exit.

12

Picture Format button

Press to switch screen aspect ratio.

• For PC signal: FULL, NORMAL, CUSTOM and REAL.

• For Video signal: FULL, NORMAL, DYNAMIC, CUSTOM

and REAL.

13

[BRIGHTNESS] button

Press to toggle Brightness Menu. Press [ ] or [ ] button to

adjust the value. Press [MENU] button to conrm and exit.

14

[ ] button

• Press to move the selection up in OSD menu.

• Press to move the sub-picture up in PIP mode.

15

[MENU] button

Press to turn the OSD menu on/off.

16

[ ] button

• Press to move the selection right in OSD menu.

• Press to increase the value in OSD menu.

• Press to move the sub-picture right in PIP mode.

17

[EXIT] button

Press to turn back to the previous OSD menu.

18

[ ] button

• Press to move the selection down in OSD menu.

• Press to move the sub-picture down in PIP mode.

19

[VOL UP] button

Press to increase the audio output level.

20

[VOL DOWN] button

Press to decrease the audio output level.

8

2.3.2. Inserting the batteries in the remote

control

The remote control is powered by two 1.5V AAA batteries.

To install or replace batteries:

1. Press and then slide the cover to open it.

2. Align the batteries according to the (+) and (–) indications

inside the battery compartment.

3. Replace the cover.

Caution:

The incorrect use of batteries can result in leaks or bursting. Be

sure to follow these instructions:

• Place “AAA” batteries matching the (+) and (–) signs on each

battery to the (+) and (–) signs of the battery compartment.

• Do not mix battery types.

• Do not combine new batteries with used ones. It causes

shorter life or leakage of batteries.

• Remove the dead batteries immediately to prevent them

from liquid leaking in the battery compartment. Don’t touch

exposed battery acid, it cause damage to your skin.

NOTE: If you do not intend to use the remote control for a long

period, remove the batteries.

2.3.3. Handling the remote control

• Do not subject to strong shock.

• Do not allow water or other liquid to splash the remote

control. If the remote control gets wet, wipe it dry

immediately.

• Avoid exposure to heat and steam.

• Other than to install the batteries, do not open the remote

control.

2.3.4. Operating range of the remote control

Point the top of the remote control toward the display’s remote

control sensor when pressing a button.

Use the remote control within a distance of less than 10m/33ft

from the display’s sensor, and a horizontal and vertical angle of

less than 30 degrees.

NOTE: The remote control may not function properly when the

remote control sensor on the display is under direct

sunlight or strong illumination, or when there is an

obstacle in the path of signal transmission.

30 30

CDP3235/CDP4235/CDP4635 series

30 30

CDX5550-L

9

3. Connecting External Equipment

3.1. Using the Switch Cover

A cover for the power switch is provided to prevent the display

from being turned on or off accidentally.

To lock the cover into position:

1. Align and insert the cover to the indentation located beside

the main switch.

2. Use the screw to lock the cover.

CDP3235:

1

2

Screw

Power switch cover

CDP4235/CDP4635 series:

1

2

Screw

Power switch cover

10

3.2. Connecting External Equipment (DVD/VCR/VCD)

3.2.1. Using COMPONENT video input

Audio Output

To [AUDIO IN 2, 3]

DVD / VCR / VCD

COMPONENT

(YPbPr)

COMPONENT

(YPbPr)

3.2.2. Using HDMI video input

DVD / VCR / VCD

HDMI connector

11

3.3. Connecting a PC

3.3.1. Using VGA input

To [VGA IN]

PC or IBM compatible

From analog VGA output

Mini D-Sub 15 pin

From audio output

To [AUDIO IN 1, 2, 3]

3.3.2. Using DVI input

From audio output

To [DVI IN]

PC or IBM compatible

From DVI output

To [AUDIO IN 1, 2, 3]

12

3.3.3. Using HDMI input

To [HDMI IN]

PC or IBM compatible

From HDMI output

3.3.4. CONNECTING THE TOUCH MODULE

There are two ways to connect the touch module.

1. Connect the USB cable on the display to a PC.

The touch module supports easy Plug-and-Play operations. There is no need to install additional drivers on the PC.

2. Install an OPS (Open Pluggable Specication) module in to the slot on the rear of the display. Refer to the module’s documentation

for user instructions.

To [USB IN]

PC or IBM compatible

From USB output

OPS module

13

3.4. External Audio Connection

3.4.1. Connecting external speakers

External speaker

3.4.2. Connecting an external audio device

Stereo Amplifier

RCA

Audio In

To [AUDIO OUT]

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ViewSonic CDP4235 User manual

ViewSonic CDP4235 User manual

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