Vivitek D791st User Manual

							
DLP Projector – User’s Manual 
 
 
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REGULATORY COMPLIANCE 
FCC Warning 
This equipment has been tested and found to comply wi th the limits for a Class B digital device pur-
suant to Part 15 of the FCC Rules. These lim its are designed to provide reasonable protection 
against harmful interference when the equipm ent is operated in a commercial environment. 
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and 
used in accordance with the instruction manual, ma y cause harmful interference to radio communica-
tions. Operation of this equipment  in a residential area is likely to cause harmful interference in which 
case the user will be required to correct  the interference at his/her own expense. 
Changes or modifications not expressly approved  by the parties responsible for compliance could 
void the user’s authority to operate the equipment. 
Canada 
This class B digital apparatus complies with Canadian ICES-003. 
Safety Certifications 
FCC-B, UL, CB, CE, CCC, KC, SASO , PCT, Argentina TUV, NOM, and PSB 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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DLP Projector – User’s Manual 
 
 
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APPENDIX I 
RS-232C Protocol 
Note: Not all functions are available  for all models due to different series. 
RS232 Setting 
Baud rate:  9600 
Parity 
check: None 
Data bit: 8 
Stop bit: 1 
Flow Con-
trol None 
Minimum delay for next command:  1ms 
Control Command Structure                         
The command is structured by the  Header code, command code, data 
code and end code. Most of the  commands are structured except some 
for the compatibility issu e with other projectors. 
Header code Command code Data code End code 
HEX 7Eh Command Data 0Dh 
ASCII ‘~’ Command Data CR 
 
Control Sequence 
The projector may send a return code after  it received a command. If the command isn’t 
received correctly, the projecto r will not send the return code 
Operation Command 
The operation commands execut e the basic operation setting of this projector. 
Operation ASCII HEX 
Power On          ※ ~ P N CR ※ 7Eh 50h 4Eh 0Dh 
Power Off ~ P F CR 7Eh 50h 46h 0Dh 
Auto Image ~ A I CR 7Eh 41h 49h 0Dh 
Lamp Hour Reset ~ R L CR 7Eh 52h 4Ch 0Dh 
Input Select RGB ~ S R CR 7Eh 53h 52h 0Dh 
Input Select RGB2 ~ S G CR 7Eh 53h 47h 0Dh 
Input Select DVI ~ S D CR 7Eh 53h 44h 0Dh 
Input Select Video ~ S V CR 7Eh 53h 56h 0Dh 
Input Select S-Video ~ S S CR 7Eh 53h 53h 0Dh 
Input Select Component  ~ S Y CR 7Eh 53h 59h 0Dh 
Input Select HDMI ~ S H CR 7Eh 53h 48h 0Dh 
Input Select Wireless ~ S W CR 7Eh 53h 57h 0Dh 
※ Power On command will only word at system standby. 
※ CR  : Carriage Return. 
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DLP Projector – User’s Manual 
 
 
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Remote Command 
The remote commands simulate the  code send from IR remote handset. 
Button’s name ASCII HEX 
UP arrow ~ r U CR 7Eh 72h 55h 0Dh 
DOWN arrow ~ r D CR 7Eh 72h 44h 0Dh 
LEFT arrow ~ r L CR 7Eh 72h 4Ch 0Dh 
RIGHT arrow ~ r R CR 7Eh 72h 52h 0Dh 
POWER ~ r P CR 7Eh 72h 50h 0Dh 
EXIT ~ r E CR 7Eh 72h 45h 0Dh 
INPUT ~ r I CR  7Eh 72h 49h 0Dh  
AUTO ~ r A CR 7Eh 72h 41h 0Dh 
KEYSTONE+ ~ r K CR 7Eh 72h 4Bh 0Dh 
KEYSTONE- ~ r J CR 7Eh 72h 4Ah 0Dh 
MENU ~ r M CR 7Eh 72h 4Dh 0Dh 
STATUS ~ r S CR 7Eh 72h 53h 0Dh 
MUTE ~ r T CR 7Eh 72h 54h 0Dh 
ZOOM+ ~ r Z CR 7Eh 72h 5Ah 0Dh 
ZOOM- ~ r Y CR 7Eh 72h 59h 0Dh 
BLANK ~ r B CR 7Eh 72h 42h 0Dh 
FREEZE ~ r F CR 7Eh 72h 46h 0Dh 
VOLUME+ ~ r V CR 7Eh 72h 56h 0Dh 
VOLUME- ~ r W CR 7Eh 72h 57h 0Dh 
Enter ~ r N CR 7Eh 72h 4Eh 0Dh 
Set Value Command 
ITEM ASCII HEX 
Brightness ~ s B ? CR ※ 7Eh 73h 42h ?h 0Dh 
Contrast ~ s C ? CR  7Eh 73h 43h ?h 0Dh  
Color ~ s R ? CR 7Eh 73h 52h ?h 0Dh  
Tint ~ s N ? CR 7Eh 73h 4Eh ?h 0Dh  
Scaling ~ s A ? CR 7Eh 73h 41h ?h 0Dh 
Color Temperature ~ s T ? CR 7Eh 73h 54h ?h 0Dh  
Projection Mode ~ s J ? CR 7Eh 73h 4Ah ?h 0Dh  
※ ?  : ASCII Data  
Data Range 
ITEM Set Data Range Source 
Brightness 0 ~ 100 ALL 
Contrast 0 ~ 100 ALL 
Color 0 ~ 100  Video/S-
Video/Com
ponent 
Tint 0 ~ 100  Video/S-
Video/Com
ponent 
Scaling 0: Fill 1: 4:3 2: 16:9  3 :Letter Box 
4 :Native 
ALL 
Color Temperature 0:Cold 1:Normal 2:Warm  ALL 
Projection Mode 0:Front 1:Rear 2:Rear+Ceiling 
3:Ceiling  
ALL 
Attention: Data range may be  different for different models 
Example 1.  Adjust Brightness value to 100 
             Send Command : ~sB100CR 
Example 2.  Adjust Color Temperature to Warm 
               Send Command : ~sT2CR 
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DLP Projector – User’s Manual 
 
 
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Query Command 
ITEM ASCII HEX 
Software Version ~ q V CR 7Eh 71h 56h 0Dh 
Power State ~ q P CR  7Eh 71h 50h 0Dh  
Input Select ~ q S CR 7Eh 71h 53h 0Dh  
Lamp Hours ~ q L CR 7Eh 71h 4Ch 0Dh  
Brightness ~ q B CR 7Eh 71h 42h 0Dh 
Contrast ~ q C CR 7Eh 71h 43h 0Dh  
Color (Video) ~ q R CR 7Eh 71h 52h 0Dh  
Tint (Video) ~ q N CR 7Eh 71h 4Eh 0Dh  
Scaling ~ q A CR 7Eh 71h 41h 0Dh 
Color Temperature ~ q T CR 7Eh 71h 54h 0Dh  
Projection Mode ~ q J CR 7Eh 71h 4Ah 0Dh  
Response message 
ITEM Response Message examples   
Software Version …..  
Power State On Off  
Input Select RGB RGB2 HDMI Video S-
Video Component DVD 
HDTV 
 
Lamp Hours 2000   
Brightness 100  
Contrast 100  
Color (Video) 100  
Tint (Video) 100  
Scaling Fill 4:3 16:9 LetterBox Native  
Color Temperature Cold Normal Warm  
Projection Mode Front Rear+Ceiling Rear Ceiling   
 
Example 1.  Get Brightness value  
Send Command : ~qBCR 
Response : 100 
Example 2.  Get Color Temperature  
Send Command : ~qTCR 
Response : Warm 
 
 
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