ViewSonic Projector PJD7820HD User Manual

 46
Function Description
High Altitude 
ModeA mode for operation in high altitude areas. See Operating in a high 
altitude environment on page 35 for details.
DCR
Enables or disables the DCR (Dynamic Contrast Ratio) function. 
Selecting On enables the function and the projector will 
automatically switch the lamp mode between normal and economic 
modes according to the input image detected.
This function is only available when a PC source is in use.
After enabling DCR, frequent lamp mode switching may...

 47
Function Description
Presentation 
TimerReminds the presenter to finish the presentation within a certain time 
frame. See Setting the presentation timer on page 34 for details.
Security 
SettingsSee Utilizing the password function on page 21 for details.
Remote 
Control CodeSee Remote control code on page 9 for details.
Reset Settings
Reset All Settings
Returns all settings to the factory preset values.
The following settings will still remain: Keystone, Language, 
Projector Position, High Altitude...

 48
Maintenance
Care of the projector
Your projector needs little maintenance. The only thing you need to do on a regular basis is 
to keep the lens clean.
Never remove any parts of the projector except the lamp. Contact your dealer if other parts 
need replacing.
Cleaning the lens
Clean the lens whenever you notice dirt or dust on the surface.
• Use a canister of compressed air to remove dust.
• If there is dirt or smears, use lens-cleaning paper or moisten a soft cloth with lens 
cleaner and gently...

 49
Lamp information
Getting to know the lamp hour
When the projector is in operation, the duration (in hours) of lamp usage is automatically 
calculated by the built-in timer.
To obtain the lamp hour information:
1. Press MENU/EXIT on the projector or Menu on the remote control and then press 
/  until the SYSTEM SETTING: ADVANCED menu is highlighted.
2. Press  to highlight Lamp Settings and press MODE/ENTER on the projector or 
ENTER on the remote control. The Lamp Settings page is displayed.
3. You...

 50
Timing of replacing the lamp
When the LAMP indicator light lights up red or a message appears suggesting it is time to 
replace the lamp, please install a new lamp or consult your dealer. An old lamp may cause a 
malfunction in the projector and in some instances the lamp may explode.
CAUTION
The LAMP indicator light and TEMPerature indicator light will light up if the lamp becomes too 
hot. Turn the power off and let the projector cool for 45 minutes. If the LAMP or TEMP indicator 
still lights up...

 51
Replacing the lamp
To prepare a new lamp, contact your dealer and tell the lamp type number.
Type number: RLC-079
WARNING
Hg - Lamp contains mercury. Manage in accordance with local disposal 
laws. See www.lamprecycle.org
• Be careful of broken glass when replacing the lamp.
• Please wear eye protection and gloves when performing overhead installation.
• To reduce the risk of electrical shock, always turn the projector off and disconnect the 
power cord before changing the lamp.
• To reduce the risk...

 52
4. Loosen the screw that secures the lamp.
5. Disconnect the lamp’s wire connector from 
the projector, and then lift the handle so that 
it stands up. Use the handle to slowly pull 
the lamp out of the projector.
CAUTION
• Pulling it too quickly may cause the lamp to 
break and scatter broken glass in the projector.
• Do not place the lamp in locations where water 
might splash on it, children can reach it, or 
near flammable materials.
• Do not insert your hands into the projector 
after the lamp...

 53
12. Restart the projector.
CAUTION
Do not turn the power on with the lamp cover removed.
Resetting the lamp timer
13. After the startup logo, open the On-Screen 
Display (OSD) menu.
14. Go to the SYSTEM SETTING: 
ADVANCED > Lamp Settings menu. Press 
MODE/ENTER on the projector or ENTER 
on the remote control. The Lamp Settings 
page is displayed. 
15. Press  to highlight Reset lamp timer and 
press MODE/ENTER on the projector or 
ENTER on the remote control. A warning 
message is displayed asking if...

 54
Indicators
LightStatus & Description
POWERTEMPLAMP
Power events
Blue
FlashingOff OffStand-by mode
Blue Off OffPowering up
Blue Off OffNormal operation
Blue
FlashingOff OffNormal power-down cooling
Lamp events
Blue
FlashingOff RedThe projector needs 60 seconds to cool down.
Off Off RedThe projector has shut down automatically. If you try 
to re-start the projector, it will shut down again. 
Please contact your dealer for assistance.
Blue Off RedCW start fail  (30sec)
Thermal events
Off Red OffThe...

 55
Troubleshooting
The projector does not turn on.
No picture
Blurred image
Remote control does not work
CauseRemedy
There is no power from the power 
cord.Plug the power cord into the AC inlet on the 
projector, and plug the power cord into the 
power outlet. If the power outlet has a switch, 
make sure that it is switched on.
Attempting to turn the projector on 
again during the cooling process.Wait until the cooling down process has 
completed.
CauseRemedy
The video source is not turned on or...