Vivitek Projector DH833 User Manual

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RS232 by Telnet Function 
Besides projector connected to RS232 interface with “Hyper-Terminal” communication by dedicated 
RS232 command control, there is alternative RS232 command control way, so called “RS232 by 
TELNET” for LAN/RJ45 interface. 
Quick Start-Guide for “RS232 by TELNET” 
Check and get the IP-Address on OSD of the projector. 
Make sure that laptop/PC can access the web-page of the projector. 
Make sure that “Windows Firewall” setting to be disabled in case of “TELNET” function...

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Input the command format like the below: 
telnet  ttt.xxx.yyy.zzz  23 (“Enter” key pressed) 
(ttt.xxx.yyy.zzz: IP-Address of the projector) 
If Telnet-Connection ready, and user can have RS232 command input, then “Enter” key pressed, the 
RS232 command will be workable. 
 
How to have TELNET enabled in Windows VISTA / 7 / 8 
By default installation for Windows VISTA / 7 / 8, “TELNET” function is not included. But end-user can 
have it by way of “Turn Windows features On or Off” to be enabled....

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Select “Turn Windows features on or off” to open 
 
Have “Telnet Client” option checked, then press “OK” button. 
 
Specsheet for “RS232 by TELNET” : 
1. Telnet: TCP 
2. Telnet port: 23 (for more detail, kindly please get contact with the service agent or team) 
3. Telnet utility: Windows “TELNET.exe” (console mode) 
4. Disconnection for RS232-by-Telnet control normally: Close Windows Telnet utility directly after 
TELNET connection ready 
5. Limitation 1 for Telnet-Control: there is only one...

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Advanced 2 Feature 
Press the Menu button to open the OSD menu. Press ◄► to move to the Settings 2 menu. Press 
▲▼ to move to the Advanced 2 menu and then press Enter or ►. Press ▲▼ to move up and down 
in the Advanced 2 menu. Press ◄► to enter and change values for setting. 
 
ITEM DESCRIPTION 
Sleep Timer Press the cursor ◄► buttons to enter and set Sleep timer. The projector automatically 
turns off after the preset period of time. 
Source Filter Press Enter/ ► to enter the Source Filter menu....

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Source Filter 
Press the ENTER button to enter the Source Filter sub menu. 
 
ITEM DESCRIPTION 
VGA Press the ◄► buttons to enter and enable or disable the VGA source. 
Composite Videç Press the ◄► buttons to enter and enable or disable the Composite Video source. 
pJVideç Press the ◄► buttons to enter and enable or disable the pJVideo sourceK 
HDMI 1 / MHi Press the ◄► buttons to enter and enable or disable the HDMI1/ MHiJcompatible 
sourceK 
HDMI O Press the ◄► buttons to enter and enable or...

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MAINTENANCE AND SECURITY 
Replacing the Projection Lamp 
The projection lamp should be replaced when it burns out. It should only be replaced with a certified 
replacement part, which you can order from your local dealer.  
 Important: 
a. The projection lamp used in this product contains a small amount of mercury. 
b. Do not dispose this product with general household waste. 
c. Disposal of this product must be carried out in accordance with the regulations of your local  
authority. 
 Warning:...

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2.  Remove the lamp 
compartment cover. 
   
3.  Disconnect the lamp 
connector  
   
4.  Remove the two screws 
from the lamp module. 
   
5.  Lift the module handle up. 
6.  Pull firmly on the module 
handle to remove the lamp 
module.     

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7.  Reverse steps 1 to 6 to 
install the new lamp 
module.  
While installing, align the 
lamp module and ensure it 
is level to avoid damage. 
 
 
 
 
 
 
Note:  
The lamp module must sit 
securely in place before 
tightening the screws. 
The lamp connector must 
be connected properly and 
place as drawing before 
Lamp compartment cover 
installation back. 
   
   
 Warning: 
Lamp Connector must be installed flush with the connector base as shown in the image below.      
A gap between the Lamp...

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Resetting the Lamp 
After replacing the lamp, you should reset the lamp hour counter to zero. Refer to the following: 
1.  Press the MENU button to open 
the OSD menu. 
 
2.  Press the cursor ◄► button to 
move to the Settings 2 menu. 
Press the cursor button to move 
down to Advanced 1 and press 
enter. 
3.  Press the cursor ▼▲ button to 
move down to Lamp Hour Reset. 
 
4.  Press the cursor ► or Enter 
button.  
A message screen appears. 
 
5.  Press ▼▲◄► buttons to reset 
the lamp hour. 
6....

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Cleaning the Projector 
Cleaning the projector to remove dust and grime will help ensure trouble-free operation.  
 Warning: 
1. Be sure to turn off and unplug the projector about one hour before cleaning. Failure to do so 
could result in a severe burn. 
2. Use only a dampened cloth when cleaning. Do not allow water to enter the ventilation openings 
on the projector.  
3. If a little water gets into the projector interior while cleaning, leave unplugged in a well-ventilated 
room for several...