ViewSonic Cd4220 Users Guide

							ViewSonicCD4220 39
Customer Support
For technical support or product service, see the table below or contact your reseller.
NOTE: You will need the product serial number.
Country/RegionWebsite T = Telephone
F = FAXEmail
Australia/New Zealand www.viewsonic.com.au AUS= 1800 880 818
NZ= 0800 008 [email protected]
Canada www.viewsonic.com T= 1-866-463-4775 
F= [email protected]
Europe/Middle East/
Baltic countries/North 
Africa www.viewsoniceurope.com Contact your reseller
Hong Kong www.hk.viewsonic.com T= 852 3102 2900 [email protected]
India www.in.viewsonic.com T= 1800 11 9999 [email protected] 
Korea www.kr.viewsonic.com T= 080  333 [email protected]
Latin America (Argentina) www.viewsonic.com/la/ T= 0800-666-0098
F= [email protected]
Latin America (Brazil) www.viewsonic.com/la/ T= 0800-891-1829
F= [email protected]
Latin America (Chile) www.viewsonic.com/la/ T= 800-440303
F= [email protected]
Latin America (Columbia) www.viewsonic.com/la/ T= 01800-9-156588
F= [email protected]
Latin America (Mexico) www.viewsonic.com/la/ T= 001-866-823-2004
F= [email protected]
Renta y Datos, 29 SUR 721, COL. LA PAZ, 72160  PUEBLA, PUE. Tel: 01.222.891.55.77 CON 10 LINEAS
Electroser, Av Reforma No. 403Gx39 y 41, 97000 Mérida, Yucatán. Tel: 01.999.925.19.16
Other places please refer to http://www. viewsonic.com/la/soporte/index.htm#Mexico
Latin America (Peru) www.viewsonic.com/la/ T= 0800-53311
F= [email protected]
Macau www.hk.viewsonic.com T= 853  700 [email protected]
Puerto Rico & Virgin 
Islands www.viewsonic.com T= 1-800-688-6688 (English)
T= 1-866-379-1304 (Spanish)
F= 1-909-468-1202 [email protected]
[email protected]
Singapore/Malaysia/
Thailand www.ap.viewsonic.com T= 65 6461 6044
[email protected]
South Africa www.viewsoniceurope.com www.vie wsoniceurope.com/uk/Support/Calldesk.htm
United Kingdom www.viewsoniceurope.com
/uk/
www.viewsoniceurope.com/uk/Support/Calldesk.htm
United States www.viewsonic.com T= 1-800-688-6688
F= 1-909-468-1202 [email protected]
 
						

							ViewSonicCD4220 40
Limited Warranty
VIEWSONIC® LCD DISPLAY
What the warranty covers:
ViewSonic 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, ViewSonic will, at its sole option, repair or replace 
the product with a like product. Replacement pr oduct or parts may include remanufactured or 
refurbished parts or components.
How long the warranty is effective:
ViewSonic LCD displays are warranted for 1 year for all parts including  the light source and 1 
year for all labor 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 ha s been defaced, modified or removed.
2. Damage, deterioration or  malfunction resulting from:
a. Accident, misuse, neglect, fi re, water, lightning, or other  acts of nature, unauthorized 
product modification, or failure to follow  instructions supplied with the product.
b. Any damage of the product due to shipment.
c. Removal or installation of the product.
d. Causes external to the product, such as electrical power fluctuations or failure.
e. Use of supplies or parts not m eeting ViewSonic’s specifications.
f. Normal wear and tear.
g. Any other cause which does not  relate to a product defect.
3. Any product exhibiting a condi tion commonly known as image burn-in which results 
when a static image is displayed on the product for an extended period of time.
4. Removal, installation, one way transportati on, insurance, and set-up service charges.
How to get service:
1. For information about receiving service under  warranty, contact ViewSonic Customer Sup-
port (Please refer to Customer  Support page). You will need to provide your products serial 
number.
2. To obtain warranty service, you will be required  to provide (a) the original dated sales slip, 
(b) your name, (c) your address, (d) a descripti on 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, expr ess or implied, which extend be yond the description contained 
herein including the implied warranty of mercha ntability and fitness for a particular purpose.
4.3: ViewSonic LCD Warranty Page 1 of 2  LCD_LW02 Rev. 1e 06-11-07
 
						

							ViewSonicCD4220 41
Exclusion of damages:
ViewSonics 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 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 opportu-
nity, loss of goodwill, interference with busine ss relationships, or other commercial loss, 
even if advised of the pos sibility of such damages.
2. Any other damages, whet her incidental, consequential or otherwise.
3. Any claim against the customer by any other party.
4. Repair or attempted repair by a nyone not authorized by ViewSonic.
Effect of state law:
This warranty gives you sp ecific legal rights, and you may also  have other rights which vary 
from state to state. Some stat es do not allow limitations on implied warranties and/or do not 
allow the exclusion of incident al 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.
The warranty period for this product in  mainland China (Hong Kong, Macao and Taiwan 
Excluded) is subject to the terms and condi tions of the Maintenance Guarantee Card.
For users in Europe and Russia, full details of warranty provided can be found in 
www.viewsoniceurope.com under  Support/Warranty Information.
4.3: ViewSonic LCD Warranty Page 2 of 2  LCD_LW02 Rev. 1e 06-11-07
 
						

							ViewSonicCD4220 42
Mexico Limited Warranty
VIEWSONIC® DISPLAY PRODUCTS
What the warranty covers:
ViewSonic warrants its products to be free from defects  in material and workmanship, under normal use, during 
the warranty period. If a product proves to be defectiv e in material or workmanship during the warranty period, 
ViewSonic will, at  its sole option, repair or re place the product with a like produc t. Replacement product or parts 
may include remanufactured or refurbis hed parts or components & accessories.
How long the warra nty is effective:
ViewSonic LCD displays are wa rranted for 1 year
 for all parts including the light source and 1 year for all labor 
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, lightni ng, or other acts of nature, unauthorized product 
modification, unauthorized attempted repair, or failur e to follow instructions supplied with the product.
b. Any damage of the product due to shipment.
c. Causes external to the pr oduct, such as electrical power  fluctuations or failure.
d. Use of supplies or parts not meeting ViewSonics specifications.
e. Normal wear and tear.
f. Any other cause which does not relate to a product defect.
7. Any product exhibiting a condition commonly known as image burn-in which results when a static image is  displayed on the product for an extended period of time.
8. Removal, installation, insura nce, and set-up service charges.
How to get service:
For information about receivi ng service under warranty, contact ViewSoni c Customer Support (Please refer to the 
attached Customer Support page). You will need to prov ide your products serial number, so please record the 
product information in  the space provided below on your purchase for your future use.   Please retain your receipt 
of proof of purchase to s upport your warranty claim.
For Your Records
Product Name: ________________________________ Model Number: _____________________________
Document Number: ____________________________ Serial Number: _____________________________
Purchase Date: ________________________________ Extended Warranty Purchase? ____________ (Y/N) If so, what date does warranty expire? ___________
1.To obtain warranty service, you will be required to provide (a) the original dated sales slip, (b) your name, (c) 
your address, (d) a description of the proble m, and (e) the serial number of the product.
2. Take or ship the product in the original containe r packaging to an authorized ViewSonic service center.
3. Round trip transportation costs for in-war ranty products will be paid by 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:
ViewSonics 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, loss of 
use of the product, loss of time, loss of profits, loss of 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.
4. Repair or attempted repair by anyone not authorized by ViewSonic.
4.3: ViewSonic Mexico Limited Warranty Page 1 of 2LCD_LW03 Rev. 1a 06-11-07
 
						

							ViewSonicCD4220 43
4.3: ViewSonic Mexico Limited Warranty Page 2 of 2LCD_LW03 Rev. 1a 06-11-07
Contact Information for Sales & Au
thorized Service (Centro Autorizado de Servicio) within Mexico:
Name, address, of manufacturer and importers:
México, Av. de la Palma #8 Piso 2 Despacho 203, Corporativo Interpalmas, 
Col. San Fernando Huixquilucan, Estado de México
Tel: (55) 3605-1099
http://www.viewsonic.com/la/soporte/index.htm
NÚMERO GRATIS DE ASISTENCIA TÉCNICA PARA TODO MÉXICO: 001.866.823.2004
Hermosillo:
Distribuciones y Servicios Computacionales SA de CV.
Calle Juarez 284 local 2
Col. Bugambilias C.P: 83140
Tel: 01-66-22-14-9005
E-Mail: [email protected] Villahermosa:
Compumantenimietnos Garantizados, S.A. de C.V.
AV. GREGORIO MENDEZ #1504
COL, FLORIDA C.P. 86040
Tel: 01 (993) 3 52 00 47 / 3522074 / 3 52 20 09
E-Mail: [email protected]
Puebla, Pue. (Matriz):
RENTA Y DATOS, S.A. DE C.V. Domicilio:
29 SUR 721 COL. LA PAZ
72160 PUEBLA, PUE.
Tel: 01(52).222.891.55.77 CON 10 LINEAS
E-Mail: [email protected] Ve r a c r u z ,  Ve r. :
CONEXION Y DESARROLLO, S.A DE C.V.  Av. 
Americas # 419
ENTRE PINZÓN Y ALVARADO
Fracc. Reforma C.P. 91919
Tel: 01-22-91-00-31-67
E-Mail: [email protected]
Chihuahua
Soluciones Globales  en Computación
C. Magisterio # 3321 Col. Magisterial
Chihuahua, Chih.
Tel: 4136954
E-Mail: [email protected] Cuernavaca
 
Compusupport de Cuernavaca SA de CV
Francisco Leyva # 178 Col. Miguel Hidalgo
C.P. 62040, Cuernavaca Morelos
Tel: 01 777 3180579 / 01 777 3124014
E-Mail: [email protected]
Distrito Federal: 
QPLUS, S.A. de C.V.
Av. Coyoacán 931
Col. Del Valle 03100, México, D.F.
Tel: 01(52)55-50-00-27-35
E-Mail : gacost [email protected] Guadalajara, Jal.:
SERVICRECE, S.A. de C.V.
Av. Niños Héroes # 2281
Col. Arcos Sur, Sector Juárez
44170, Guadalajara, Jalisco
Tel: 01(52)33-36-15-15-43
E-Mail: [email protected]
Guerrero Acapulco
GS Computación (Grupo Sesicomp)
Progreso #6-A, Colo Centro
39300 Acapulco, Guerrero
Tel: 744-48-32627 Monterrey:
Global Product Services
Mar Caribe # 1987, Esquina con Golfo Pérsico
Fracc. Bernardo Reyes, CP 64280
Monterrey N.L. México
Tel: 8129-5103
E-Mail: [email protected]
MERIDA: 
ELECTROSER
Av Reforma No. 403Gx39 y 41
Mérida, Yucatán, México  CP97000
Tel: (52) 999-925-1916
E-Mail: [email protected] Oaxaca, Oax.:
CENTRO DE DISTRIBUCION Y
SERVICIO, S.A. de C.V.
Murguía # 708 P.A., Col. Centro, 68000, Oaxaca
Tel: 01(52)95-15-15-22-22
Fax: 01(52)95-15-13-67-00 
E-Mail. [email protected]
Tijuana:
STD
Av Ferrocarril Sonora #3780 L-C 
Col 20 de Noviembre
Tijuana, Mexico FOR USA SUPPORT: 
ViewSonic Corporation 
381 Brea Canyon Road, Walnut, CA.  91789   USA
Tel: 800-688-6688 (English); 
 866-323-8056 (Spanish);
Fax: 1-800-685-7276
E-Mail: http://www.viewsonic.com
 
						

							CD4620/CD4220 RS232 protocol   
 
 
Table of Content 
 
 
 
1 Introduction........................................................................\
............................... 45 
2 Descrip tion....................................................................\
..................................... 45 
2.1 Hardware sp ecification ........................................................................\
............................. ....... 45 
2.2 Communica tion Setting............................................................\
.......................................... ...... 45 
2.3 Command Messag e Reference ........................................................................\
....................... 45 
3 Protocol 1 : with ID ........................................................................\
.................... 46 
3.1 Command De scription ........................................................................\
................................ ..... 46 
3.2 Set-Functi on Listing ........................................................................\
............................... .......... 46 
3.3 Get-Function Listing....................................................................\
................................... .......... 49 
4  Protocol 2 : without ID ........................................................................\
.............. 51 
4.1 Set func tion listing........................................................................\
............................... ............. 51 
4.2 Get-Function Listing....................................................................\
................................... .......... 53 
4.3 Remote Control  Pass-through mode ........................................................................\
............... 55 
 
 
Version control
 
 
Date  Reversion Changes and additions  by 
11/12/2007 V1.0 First release, combine two protocol sets in one document  Tony Kao 
 V1.1 Remove section 3.4  Tony Kao 
11/14/2007 V1.2 Update base on vender confirmation  Tony Kao 
Jane Chen 
 
Applicable model 
CD4620
 
CD4220
 
 
 
						

							3. Introduction  
This document describes the hardware interface spec and software protocols of RS232 interface 
communication between Viewsonic Commercial Display and PC or other control unit with RS232 
protocol. 
Viewsonic CD4620 and CD4220 contain with 2 set of protocol command 
1.  Protocol 1, with ID 
This set protocol allow user to assign the ID in the command to control the specify ID monitor 
2.  Protocol 2, without ID 
The set protocol is best for single display control and for Viewsonic NMP-530. 
 
Both sets protocol contain three sections command:  z Set-Function 
z  Get-Function 
z   Remote control pass-through mode 
※In below document, “PC” will represents all the control units that can sent or receive the RS232 
protocol command. 
4. Description 
4.1 Hardware specification 
Viewsonic LCD communication port in the rear side   
(1) Connector type: DSUB 9 Pin Male   
(2) Pin Assignment   
 
Male DSUB 9Pin 
 
(outside view) 
 
 Pin  #  Signal Remark  
1   NC    
2    RXD Input to LCD Monitor 
3    TXD Output from LCD Monitor 
4   NC    
5   GND   
6   NC    
7   NC    
8   NC    
9   NC    
frame   GND    
 
*Use of crossover (null modem) cable 
required for use with PC 
4.2 Communication Setting  
  - Baud Rate Select:  9600bps (fixed)   
  - Data bits:    8bits (fixed)   
  - Parity:    None (fixed)   
 - Stop Bits:   1(fixed)  
 
4.3  Command Message Reference 
PC sends to Monitor command packet followed by “CR”.
 Every time PC sends control command to the 
Monitor, the Monitor shall response as follows: 
  1.  If the message is receives correctly it  will send “+” (02Bh) followed by “CR” (00Dh) 
2.  If the message is receives incorrectly it  will send    “-” (02Dh) followed by “CR” (00Dh) 
 
 
						

							5. Protocol 1 : with ID 
5.1 Command Description 
 Length:  Total Byte of Message excluding “CR” 
TV ID  Identification for each of TV 
Command Type  Identify command type,   
“s” (0x73h) : Set Command 
“g” (0x67h) : Get Command 
“r” (0x72h) : Reply Command 
“p” (0x70h) : RCU Pass-through 
“+” (0x2Bh) : Valid command Reply 
“-“ (0x2Dh) : Invalid command Reply 
Command:  Function command code: One byte ASCII code 
Value[1~3]:  Three bytes ASCII that defines the value 
CR  0x0D 
 
5.2 Set-Function Listing 
The PC can control the LCD Monitor for specific actions. The Set-Function command allows you to 
control the LCD monitor behavior in a remote sit through the RS232 port. The Set-Function packet 
format consists of 11 bytes.   
 
Set-Function description:   
Length:   Total Byte of Message excluding “CR” 
TV ID  Identification for each of TV 
If we want to set all TV settings, TV ID can use “
99” to achieve, and it will not 
have  Reply  command on this function. 
Command Type  Identify command type,   
“s” (0x73h) : Set Command 
Command:   Function command code: One byte ASCII code   
Value[1~3]:   Three bytes ASCII that defines the value   
CR  0x0D 
 
Set-Function format   
Send: (Command Type=”s”) 
Name   Length  ID Command Type CommandValue1 Value2  Value3   CR  
Byte 
Count   1 Byte   
2 Byte  1 Byte  1 Byte   1 Byte 1 Byte  1 Byte   1 Byte   
Bytes 
order  1 2~3 
4 5 6 7 8 9 
 
Reply: (Command Type=”+” or “-”) 
Name   Length ID  Command Type CR 
Byte 
Count   1 Byte   
2 Byte  1 Byte 1 Byte 
Bytes 
order  1 2~3 
4 5 
Example1: Set Brightness as 76 for TV-02 and this command is valid 
Send (Hex Format)   
Name  Length  ID Command Type CommandValue1 Value2  Value3   CR  
Hex  0x38 0x30 0x32 0x73 0x24 0x30 0x37 0x36 0x0D 
Reply (Hex Format) 
Name  
Length ID  Command Type CR 
Hex  0x34 0x30 0x32 0x2B 0x0D
 
Example2: Set Brightness as 176 for TV-02 and this command is NOT valid 
Send (Hex Format)   
Name  
Length  ID Command Type CommandValue1 Value2  Value3   CR  
 
						

							Hex  0x38 0x30 0x32 0x73 0x24 0x31 0x37 0x36 0x0D 
Reply (Hex Format) 
Name  
Length ID  Command Type CR 
Hex  0x34 0x30 0x32 0x2D 0x0D
 
Example3: Set Tint as 32 for TV-03 and this command is valid 
Send (Hex Format)   
Name  
Length  ID Command Type CommandValue1 Value2  Value3   CR  
Hex  0x38 0x30 0x33 0x73 0x27 0x30 0x33 0x32 0x0D 
Reply (Hex Format) 
Name  
Length ID  Command Type CR 
Hex  0x34 0x30 0x33 0x2B 0x0D
 
Example4: Set Tint as 75 for TV-03 and this command is NOT valid 
Send (Hex Format)   
Name  
Length  ID Command Type CommandValue1 Value2  Value3   CR  
Hex  0x38 0x30 0x33 0x73 0x27 0x30 0x37 0x35 0x0D 
Reply (Hex Format) 
Name  
Length ID  Command Type CR 
Hex  0x34 0x30 0x33 0x2B 0x0D
 
Example5: Set Brightness as 76 for all TV and this command is valid 
Send (Hex Format)   
Name  
Length  ID Command Type CommandValue1 Value2  Value3   CR  
Hex  0x38 0x39 0x39 0x73 0x24 0x30 0x37 0x36 0x0D 
No Reply
. 
 
 
CD4620/CD4220 set-function table 
 
Length  IDCommand  Command   Value Range  Set Function   
  Type  Code (ASCII)  Code (Hex)(Three ASCII  bytes)  Comments 
000: STBY Power  
8   s  ! 21 
001: ON  Controlled  power 
status: ON or Standby
000 : VGA 
001 : HDMI1 
002 : HDMI2 
003 : AV 
004 : YPbPr 
Input Select   
8   s  “ 22 
005 : S-Video   
 
Contrast   8   s  #  23 000 ~ 100     
Brightness    8   s  $ 24 000 ~ 100      
Sharpness   8   s  %   25 000 ~ 100     
Color    8   s  &  26 000 ~ 100      
Tint    8   s  ‘ 27 000 ~ 100      
Bass  8   s  . 2E 000 ~ 100  Sets Bass value 
Treble 8   s  / 2F 000 ~ 100  Sets Treble value 
Balance 8   s  0 30 000 ~ 100  Sets Balance position
000 : 16:9 
001 : 4:3 
002 : ZOOM 
Picture Size   8   s  1 31 
003 : PANORAMA   
 
000 : English 001 : French 002 : Spanish 003 : Germany 004 : Italian 
OSD Language    8   s  2 32 
005 : Simplified   
 
 
						

							Chinese 006 : Russian 
OSD timeout 8   s  3 33 005 ~120 Sec  Set OSD timeout 
Volume   8   s  5 35 000 ~ 100      
000: OFF Mute   8   s  6 36 
001: ON (mute)     
 
000: OFF    Off Timer  8   s  7 37 
001~024 (hour)    
000 : OFF 
001:  PIP 
002:  POP 
003 : PBP 
PIP Mode    8   s  9 39 
004 : PBPA   
 
000: Main PIP Sound select    8   s  : 3A 
001: PIP     
 
000: Up 
001: Down 
002: Left 
PIP position  8   s  ; 3B 
003: Right   
 
000 : VGA 
001 : HDMI1 
002 : HDMI2 
003 : AV 
004 : YPbPr 
PIP Input    8   s  <   3C 
005 : S-Video   
 
Monitor ID  8   s  = 3D 001 ~ 026      
000 : POWER 
001 : SOURCE 
002 : MENU/EXIT 
003 : UP 
004 : DOWN 
005 : LEFT 
006 : RIGHT 
Key Pad  8   s  A    41 
007 : MUTE   
 
000: Disable  Disable: RCU has no 
effect on HDTV.  
001: Enable    Enabled: RCU 
controls the HDTV. 
This is the power up 
default on the HDTV.  
Remote Control   8   s  B   42 
002: Pass through  Pass through: 
RCU 
has no effect on HDTV 
and all RCU command 
codes are transmitted 
to FC via the RS232 
port. See page 26 for 
more details  
000: Disable  Disable: Key Pad have 
no effect on HDTV.  Key Pad  8   s  C  43 
001: Enable  Enabled
: Key Pad 
control the HDTV. This 
is the power up default 
on the HDTV.  
Factory reset  8   s  ~ 7E 0  Rests HDTV to factory 
setting