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Manual ViewSonic CD4620

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  • ViewSonic CD4620 - page 1

    V iewSonic ® CD4620 LCD Commercial Display Model No. : VS1 1915 IMPORT ANT : 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 co verage from ViewSoni ...

  • ViewSonic CD4620 - page 2

    ViewSonic CD4620 Contents Safety Precautions ........ ................................ ........................................................ 5 Package Contents ........... ................................. ..................................................... 6 Parts Name and Functions ........... ................................................ ...

  • ViewSonic CD4620 - page 3

    ViewSonic CD4620 Controlling the LCD monitor via RS-232C Re mote Control ...... ............ ......... 34 Appendix: Installing and removi ng stands ........... ................................. ........... 35 Features ............... ................................. ................................................. .............. 36 T roubleshooti ...

  • ViewSonic CD4620 - page 4

    ViewSonic CD4620 1 Compliance Information For U.S.A. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmf ul inte rference when the equipment is operated in a commercial environment. this equipm ...

  • ViewSonic CD4620 - page 5

    ViewSonic CD4620 2 Import ant Safety Instructions 1. Read these instructions comple tely before usin g 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 . W arning: T o reduce the risk of fire or electric shock, do not expose this apparatus to rain or ...

  • ViewSonic CD4620 - page 6

    ViewSonic CD4620 3 Declaration of RoHS Compliance This product has been design ed 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 el ectronic equipment (R oHS Directive) and is deemed to comply with the maximum concentrat ...

  • ViewSonic CD4620 - page 7

    ViewSonic CD4620 4 Copyright Information Copyright © V iewSonic ® Corporation, 2007. All rights reserved. Macintosh and Power Macint osh are registered trademarks of Appl e Computer , Inc. Microsoft, Windows, Windows NT , and the Windows logo ar e registered trademarks of Microsoft Corporation in the Un ited S tates and other countries. ViewSonic ...

  • ViewSonic CD4620 - page 8

    V iewSonic CD4620 5 Safety Precautions FOR OPTIM UM PERFORM ANCE, PLEASE NOTE THE FOLLOWING WHEN SETTI NG UP AND USI NG THE LCD COLOR MONITO R: y DO NOT REMOVE MONITOR BACK COVER. There are no user serviceable parts inside and opening or removing covers may expose you to dangerou s shock hazards or other risks. Refer all serv icing to qualified ser ...

  • ViewSonic CD4620 - page 9

    V iewSonic CD4620 6 Package Content s Y our new CD4620 monitor box* should contain the foll owing: y LCD monitor y Power Cord (1.8 m) y Video Signal Cable (1.8 m) y User ’s Manual in CD Wiza rd y Wireless Remote Control and AAA Batteries y Quick S tart Guide (A4 ) LCD monitor Quick S tart Guide Video Signal Cable CD Wizard Power cored For North A ...

  • ViewSonic CD4620 - page 10

    V iewSonic CD4620 7 Part s Name and Functions Control Panel POWER button ( ) - Switches the power on/of f. MUTE button - Switches the audio mute ON/OFF . INPUT butto n - Acts as SET button with OSD menu.(T oggle sw itches between [RGB1], [R GB2], [RGB3 ], [RGB4], [DVD/HD], [VIDEO<S>] and [VIDEO] .) PLUS (+) butto n - Acts as (+) button to inc ...

  • ViewSonic CD4620 - page 11

    V iewSonic CD4620 8 T erminal Panel AUDIO IN 1, 2, 3 T o input audio signal from external equipment such as a comput er , VCR or DVD player . AUDIO OUT T o output the audio signal from the AUDIO IN 1,2 and 3 jack. EXTERNAL CO NTROL (mini D-Sub 9 pin) Connect the IN connector with the RS-232C O UT connector of the computer or a mu lti-connected CD46 ...

  • ViewSonic CD4620 - page 12

    V iewSonic CD4620 9 Wireless Remote Control POWER button Switches the power on/of f. * If LED Power Indicator on the monitor is not glowing, then no controls will work. PICTURE MODE butto n Selects from picture mode, [HIGHBRIGHT ], [ST ANDARD ], [sRGB], [CIN EMA]. HIGHBRIGHT : for moving image such as Vide o ST ANDARD: for images (Factory setting) ...

  • ViewSonic CD4620 - page 13

    V iewSonic CD4620 10 Operating Range for the Remote Control Point the top of the remote control toward the LCD monito r's remote sensor during button operation. Use the remote control within a distance of about 7 m/23 f t. fro m the front of the LCD monitor's remote control sensor and at a horizontal and vertical angle of within 30° with ...

  • ViewSonic CD4620 - page 14

    V iewSonic CD4620 1 1 Setup Procedure 1. Determine the inst allation location CAUTION: DO NOT A TTEMPT TO INST ALL THE LCD MO NITO R BY YOURSELF . Installin g your LCD disp lay must be done by a qualified technician. Cont act your dealer for more information. CAUTION: MOVIN G OR INST A LLING THE LCD MONITOR MUST BE DONE BY T WO OR MORE PEOPLE .Fail ...

  • ViewSonic CD4620 - page 15

    V iewSonic CD4620 12 7. Adjust the sound Make adjustments low ering or raising the volume as required. 8. Adjust the screen Make adjustments to the displa y position or settings if required. 9. Adjust the image Make adjustments to brightness or contrast if required. 10. Recommended Adjustment T o reduce the risk of “image p ersistence”, please ...

  • ViewSonic CD4620 - page 16

    V iewSonic CD4620 13 How to Mount and Att ach Options to the LCD Monitor Y ou can attach mounting acc essories to the LC D monitor in one of the following tw o ways: 1. In the upright position 2. Lay the screen face down Lay the protective sheet on a table, which was wr apped around the monitor when it w as packaged, beneath the screen surface so a ...

  • ViewSonic CD4620 - page 17

    V iewSonic CD4620 14 4. T o avoid monitor from falling T ake measures to prevent the monitor fr om falling over in case of an earthquake or other disaster to lessen the probability of injury and damage resulting from fall. As shown in the figure, secure the monitor to a solid wall or pillar using rope (commercially available) strong enough to bear ...

  • ViewSonic CD4620 - page 18

    V iewSonic CD4620 15 Connections Before making connections: 7 First turn of f the power of all the att ached equipment and make connections. 7 Refer to the user manual included w i th each separate piece of equipment. Wiring Diagram LCD monito r (second monitor) DV D HD VCR PC Equipment with Digital interf ace Downloaded From TV-Manual.com Manuals ...

  • ViewSonic CD4620 - page 19

    V iewSonic CD4620 16 Connecting a Personal Computer Connecting your computer to your LCD monitor will enable y ou to display your computer's screen image. Some video cards may not display an image correctl y . Connect the LCD Monitor to a Personal Computer y T o connect the RGB 3 IN connector (mini D-sub 15 pin) on the LCD monitor , use the su ...

  • ViewSonic CD4620 - page 20

    V iewSonic CD4620 17 Connecting with Digit al Interface Equipment Connections can be made w i th equipment that is equipped with a digital interface compliant with the DVI (Digit al Visual Interface) standard. Connect the LCD Monitor to a Co mputer with a Digit al Output y The RGB 1, RGB 2 IN connector accept s a HDMI cable. y The RGB 1, RGB 2 IN c ...

  • ViewSonic CD4620 - page 21

    V iewSonic CD4620 18 Connecting a DVD Player with component out Connecting your DVD p layer to your LCD monitor will enab le you to display DVD vide o. Refer to your DVD player owner’s manual for more information. Connect the LCD Monitor to a DVD Player y T o connect the DVD/HD In connector (BNC) on the LCD moni tor , use a separately available B ...

  • ViewSonic CD4620 - page 22

    V iewSonic CD4620 19 Connecting to a Stereo Amplifier Y ou can connect your stereo amplifier to your LCD monitor . Re fer to your amplifier owner's manual for more information. Connect the LCD Monitor to a Stereo Amplifier y T urn on the LCD monitor and the amplifier only after all connections have been made. y Use an RCA cable to connect the ...

  • ViewSonic CD4620 - page 23

    V iewSonic CD4620 20 Basic Operation Power ON and OFF Modes The LCD monitor power indicator w ill turn green while powered on or red in off mode. T he monitor can be powered on or off using the follow ing three options: 1. Pressing the Main Power Switch. NOTE: When the Main Power Switch is used to pow er off the LCD monitor , the remote control and ...

  • ViewSonic CD4620 - page 24

    V iewSonic CD4620 21 Power Indicator S tatus Power ON Green Power OFF Red Power S tandby when “SCHEDULE” is enable Red On Green Blinking Power S tandby Red, Green Diagnosis (Detecting failure) Red Blinking * See troubleshooting Using Power Management The LCD monitor follows the VESA ap proved DPM Power Management function. The power management ...

  • ViewSonic CD4620 - page 25

    V iewSonic CD4620 22 Picture Mode RGB 1, 2, 3 HIGHBRIGTH ST ANDAR D sRGB DVD/HD, VIDEO HIGH BRIGTH ST ANDARD CINE MA Audio Source Switching Y ou can switch the audio source using the AUDI O INPUT button. RGB 1, 2 HDMI AUDIO1 AUDIO2 AUDIO3 Other than RGB 1, 2 AUDIO1 AUDIO2 AUDIO3 Control Lock Mode This function disables the operation bu ttons so tha ...

  • ViewSonic CD4620 - page 26

    V iewSonic CD4620 23 OSD (On-Screen-Display) Controls Remote Control Press MENU button to open Main menu. Press S or T button to select sub-menu. Press ENTER button to decide. Press S or T , and W or X button to select function, or control which you like. Press ENTER button to decide. Press MENU or EXIT button to exit. Control Panel Press EXIT butt ...

  • ViewSonic CD4620 - page 27

    V iewSonic CD4620 24 PICTURE BRIGHTNESS y Adjust s the overall image and background screen brightness. y Press + button to increase brightness. y Press - button to decrease brightness. CONTRAST y Adjust s the image brightness in re lation to the input signal. y Press + button to increase contrast. y Press - button to decrease contrast. SHARPNESS y ...

  • ViewSonic CD4620 - page 28

    V iewSonic CD4620 25 SCREEN H POSITION y Controls Horizont al Image position within the display area of the LCD. y Press + button to move screen to right. y Press - button to move screen to lef t. V POSITION y Controls V ertical Image position wi thin the display area of the LCD. y Press + button to move screen to UP . y Press - button to move scre ...

  • ViewSonic CD4620 - page 29

    V iewSonic CD4620 26 AUDIO BA L ANC E y Adjust the balance of L/R volume. y Press + button to move the stereo sound image to right. y Sound of the lef t side will be small. y Press - button to move the stereo sound image to left. TREBLE y T o accentuate or reduce the high frequency sound. y Press + button to increase TREBLE sound. y Press - button ...

  • ViewSonic CD4620 - page 30

    V iewSonic CD4620 27 PIP (PICTURE IN PICTURE) Note: The “PIP” an d “POP” modes do not function when the scre en size is “CUSTOM” or “REAL”. PIP SIZE y Selecting the size of picture inserted at the “Picture-in-Picture” (PIP) mode. y “Large”, “Middle” and “Small” are available. PIP A UDIO y Selecting the sound source i ...

  • ViewSonic CD4620 - page 31

    V iewSonic CD4620 28 CONFIGURA TION 1 AUTO SETUP * : INPUT RGB3,4 only y Press "SET" button to automatically adju st screen size, horizontal position, vertical position, clock, clock phase, w hite level and black level. y Press "EXIT" button to cancel execution AUTO SETUP and then will return to the previous menu. AUTO ADJ US T ...

  • ViewSonic CD4620 - page 32

    V iewSonic CD4620 29 CONFIGURA TION 2 OSD TURN OFF y The OSD control menu will stay on as long as it is use. In the OSD T urn Off submenu, you can select how long the monitor waits af ter the la st touch of a button to shut off the OSD control menu. y The preset choices are 5 -120 seconds. INFORMA TION OSD y Select s the information OSD disp lay or ...

  • ViewSonic CD4620 - page 33

    V iewSonic CD4620 30 ADV ANCE D OPTION INPUT RESOLUTION * : INP UT RGB3,4 only y Select s to decision of input signal about belo w timings, 1024x768, 1280x768 and 1360x768. y AUT O: Determin es the resolution automatically . y 1024x768: Determines the resolution as 1024x768 y 1280x768: Determines the resolution as 1280x768 y 1360x768: Determines th ...

  • ViewSonic CD4620 - page 34

    V iewSonic CD4620 31 TILING y TILING demonstrates multiple screens. This feature provides a single large scr een u sing up to 25 monitors. y It w ill be able to divide up to 5 each H and V . y This requires you to feed the PC output in to each of the monitors through a distributor . y H MONIT ORS: S elect number of horizontal divide. y V MONIT ORS: ...

  • ViewSonic CD4620 - page 35

    V iewSonic CD4620 32 For long life use of Public Display < Image S ticking of LCD Panel > When LCD panel is operated continuou sly fo r long hours, a trace of electric char ge remains near the electrode inside LCD, and residual or “ghost” image of previ ous image may be observed. (Image Persistence) Image Persistence is not permanent, but ...

  • ViewSonic CD4620 - page 36

    V iewSonic CD4620 33 < Remote control numbering function > By connecting multiple CD462 0 monitors using RS-232C cables, you can control any one monitor or all the monitors by one remote controller . 1. Assign arbitrary ID number to each of mult i-connected CD4620 monitors using MONITO R ID. ID numbers 1 to 26 are selectable. It is recommende ...

  • ViewSonic CD4620 - page 37

    V iewSonic CD4620 34 Controlling the LCD monitor via RS-232C Remote Control This LCD monitor can be controlled by connecting a personal computer with a RS-232C terminal. Functions that can be controlled by a personal computer are: Connection LCD Monitor + PC NOTE: We have tw o kinds of RS-232 protocol including serious connection and no serious con ...

  • ViewSonic CD4620 - page 38

    V iewSonic CD4620 35 Appendix: Inst alling and removing st ands How to install st ands 1. Please turn monitor of f. 2. After inserting stand in guid e block, fast en Th umbscrews on both sides of the monitor . NOTE: Install the st ands so that their longer portions come to the front. How to remove the st ands 1. S pread the protective sheet on t he ...

  • ViewSonic CD4620 - page 39

    V iewSonic CD4620 36 Features Reduced Footprint: Provides the ideal solution for environments requiring superior image quality but with size and weight limitations. The monitor ’s small footprint and low weight allow it to be moved or transported easily from one location to another . Color Control Sy stems: Allows you to adjust the colors on your ...

  • ViewSonic CD4620 - page 40

    V iewSonic CD4620 37 T roubleshooting No picture • The signal cab l e should be completely connected to the displa y card/computer . • The display card should be completely seated in its slot. • Front Power Switch and computer pow er switch should be in the ON position. • Check to make sure that a supported mode has been se lected on the di ...

  • ViewSonic CD4620 - page 41

    V iewSonic CD4620 38 S pecifications Product specificatio ns Analog Input Digital Input LCD Module Diagonal: Pixel Pitch: Resolution: Color: Brightness: Contrast Ratio: Response time: View Angle: Design View Dist ance: 46" / 1 16.8 cm 0.53025 mm 1920 x 1080 dots Over 16 million colors (depending on video card used) 450 cd/m2 (typ.) 1500:1 (typ ...

  • ViewSonic CD4620 - page 42

    ViewSonic CD4620 39 Customer Support For technical support or product service, see the table below or contact your reseller . NOTE: Y ou will need the product serial number . Country/Re gion Web si te T = T eleph one F = F AX Email Australia/New Zealand www .viewsonic.com.au AUS= 1800 880 818 NZ= 0800 008 822 service@au.viewsonic.com Canada www .vi ...

  • ViewSonic CD4620 - page 43

    ViewSonic CD4620 40 Limited W arranty VIEWSONIC ® LCD DISPLA Y What the warranty covers: V iewSonic warrants its products to be free from defects in material and workmanship, under normal use, during the warranty period. If a pr oduct proves to be defective in material or workmanship during the warranty period, V iewSonic will, at its sole option, ...

  • ViewSonic CD4620 - page 44

    ViewSonic CD4620 41 Exclusion of damages: V iewSonic's liability is limited to the cost of repair or replacement of the product. V iewSonic shall not be liable for: 1. Damage to other property caused by any def ects in the product, damages based upon incon- venience, loss of use of the product, loss of time, loss of profits, loss of business o ...

  • ViewSonic CD4620 - page 45

    ViewSonic CD4620 42 Mexico Limited W arranty VIEWSONIC ® DISPLA Y PRODUCTS What the warranty covers: V iewSo nic warrants its products to be free from defects in material and workm anship, under normal use, du ring the warranty period. If a product prov es to be defectiv e in material or workmanship during the warranty period, V iewSonic will, at ...

  • ViewSonic CD4620 - page 46

    ViewSonic CD4620 43 4.3: V iewSonic Mexico Limited W arranty Page 2 of 2 LCD_L W03 Rev . 1a 06-11-07 Contact Information for Sales & Au thorized Service (Centro Autoriza do d e Servicio) within Mexico: Name, address, of manufacturer and im porters: México, A v . de la Palm a #8 Piso 2 Despacho 203, Corporativo Interpalm as, Col. San Fernando H ...

  • ViewSonic CD4620 - page 47

    V iewSonic CD4620 44 CD4620/CD4220 RS232 protocol Table of Content 1 Introduc tion ....................................................................................................... 45 2 Descrip tion......................................................................................................... 45 2.1 Hardware sp ecificat ion ........ ...

  • ViewSonic CD4620 - page 48

    V iewSonic CD4620 45 3. Introduction This document describes t he hardware interface spec and software protocols of RS232 interface communication between V iewsonic Commercial Display and PC or other co ntrol unit with RS232 protocol. Viewsoni c CD4620 and CD4220 contain with 2 set of protocol co mmand 1. Protocol 1, w ith ID This set protocol allo ...

  • ViewSonic CD4620 - page 49

    V iewSonic CD4620 46 5. Protocol 1 : with ID 5.1 Command Description Length: T o tal Byte of Message excluding “CR” TV ID Identification for each of TV Command T ype Identify command type, “s” (0x73h) : Set Command “g” (0x67h) : Get Comman d “r” (0x72h) : Reply Command “p” (0x70h) : RCU Pass - through “+” (0x2Bh) : V alid co ...

  • ViewSonic CD4620 - page 50

    V iewSonic CD4620 47 Hex 0x38 0x30 0x32 0x73 0x24 0x31 0x37 0x36 0x0D Reply (Hex F o rm at) Name Length ID Command Type CR Hex 0x34 0x30 0x32 0x2D 0x0D Example3: Set T i nt as 32 for TV -03 and this command is valid Send (Hex Format) Name Length ID Command Type Com mand Value1 Value2 Value3 CR Hex 0x38 0x30 0x33 0x73 0x27 0x30 0x33 0x32 0x0D Reply ...

  • ViewSonic CD4620 - page 51

    V iewSonic CD4620 48 Chinese 006 : Russian OSD timeout 8 s 3 33 005 ~120 Sec Set OSD timeout V olume 8 s 5 35 000 ~ 100 000: OFF Mute 8 s 6 36 001: ON (mute) 000: OFF Off T imer 8 s 7 37 001~024 (hour) 000 : OFF 001: PIP 002: POP 003 : PBP PIP Mode 8 s 9 39 004 : PBP A 000: Main PIP Sound select 8 s : 3A 001: PIP 000: Up 001: Down 002: Left PIP pos ...

  • ViewSonic CD4620 - page 52

    V iewSonic CD4620 49 5.3 Get-Function Listing The PC can interrogate the LCD Monitor for specifi c information. The Get-Function packet format consists of 5 bytes which is similar to the Set-Functi on packet structure. Note that the “Value” byte is always = 00. Get-Function description: Length: T otal Byte of Message excluding “CR” TV ID Id ...

  • ViewSonic CD4620 - page 53

    V iewSonic CD4620 50 Example3: Get Ti nt fr om TV -0007 and this command is valid. The Tint v alue is 32 . Send (Hex Format) Name Length ID Com mand Type Com mand Value1 Value2 Value3 CR Hex 0x38 0x30 0x37 0x67 0X65 0x30 0x30 0x30 0x0D Reply (Hex F o rm at) Name Length ID Com mand Type Com mand Value1 Value2 Value3 CR Hex 0x38 0x30 0x37 0x72 0x65 0 ...

  • ViewSonic CD4620 - page 54

    V iewSonic CD4620 51 6. Protocol 2 : without ID 6.1 Set function listing The PC can control the LCD Monitor for spe cific actions. The Set-Function command allows you to control the LCD monitor behavior in a remote sit thro ugh the RS232 port. The Set-Function packet format consists of 5 bytes. Note t hat the “Value” byte is always = 00. Set-Fu ...

  • ViewSonic CD4620 - page 55

    V iewSonic CD4620 52 Brightness 5 $ 24 000 ~ 100 Sharpness 5 % 25 000 ~ 100 Color 5 & 26 000 ~ 100 T int 5 ‘ 27 000 ~ 100 Bass 5 . 2E 000 ~ 100 Sets Bass value T reble 5 / 2F 000 ~ 100 Sets T reble value Balance 5 0 30 000 ~ 100 Sets Balance position 000 : 16:9 001 : 4:3 002 : ZOOM Picture Size 5 1 31 003 : P AN ORAMA 000 : English 001 : Fren ...

  • ViewSonic CD4620 - page 56

    V iewSonic CD4620 53 6.2 Get-Function Listing The PC can interrogate the LCD Monitor for specifi c information. The Get-Function packet format consists of 5 bytes which is similar to the Set-Functi on packet structure. Note that the “Value” byte is always = 00. Get-Function description : Length: T otal bytes of message = 5 ASCII (35H), excludin ...

  • ViewSonic CD4620 - page 57

    V iewSonic CD4620 54 Length Command Command Response Range Get Function Code (ASCII) Code (Hex) (Three ASCII bytes) Comment s Get-Contrast a 61 000 ~ 100 Get s Contra st value Get-Brightness b 62 000 ~ 100 Get s Brightness value Get-Sharpness c 63 000 ~ 100 Gets Sharpness value Get-Color d 64 000 ~ 100 Gets Color value Get-T int e 65 000 ~ 100 Get ...

  • ViewSonic CD4620 - page 58

    V iewSonic CD4620 55 6.3 Remote Control Pass-through mode When PC set s the LCD monitor to Remote Control Pass through mode, the LCD shall send a three bytes packet (followed by “CR”) in response to RCU button activation. Note, that in this mode the RCU shall have no ef fect on the monitor function. For example: “+V olume” will not change t ...

  • ViewSonic CD4620 - page 59

    Downloaded From TV-Manual.com Manuals ...

Manufacturer ViewSonic Category Car Video System

Documents that we receive from a manufacturer of a ViewSonic CD4620 can be divided into several groups. They are, among others:
- ViewSonic technical drawings
- CD4620 manuals
- ViewSonic product data sheets
- information booklets
- or energy labels ViewSonic CD4620
All of them are important, but the most important information from the point of view of use of the device are in the user manual ViewSonic CD4620.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals ViewSonic CD4620, service manual, brief instructions and user manuals ViewSonic CD4620. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product ViewSonic CD4620.

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A complete manual for the device ViewSonic CD4620, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use ViewSonic CD4620 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of ViewSonic CD4620.

A complete ViewSonic manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual ViewSonic CD4620 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the ViewSonic CD4620, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the ViewSonic CD4620, that we can find in the current document
3. Tips how to use the basic functions of the device ViewSonic CD4620 - which should help us in our first steps of using ViewSonic CD4620
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with ViewSonic CD4620
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of ViewSonic CD4620 in a specific country, if it was not possible to solve the problem on our own.

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