NEC NP901W User Manual Page 136
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- TROUBLESHOOTING
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122
7. Maintenance
This section describes the simple maintenance procedures you should follow to clean the filters and replace the lamp.
Cleaning or Replacing the Filter
The air-filter sponge keeps dust and dirt from getting inside the projector and should be frequently cleaned. If the
filter is dirty or clogged, your projector may overheat.
NOTE: The message for filter cleaning will be displayed for one minute when the projector is turned on or off.
To cancel the message, press any button on the projector cabinet or the remote control.
CAUTION
• Turn off the projector, turn off the main power switch and unplug the projector before replacing the filter.
• Only clean the outside of the filter cover with a vacuum cleaner.
• Do not attempt to operate the projector without the filter cover.
To clean the air-filter:
Vacuum the filter-through the filter cover.
To reset the filter usage time, from the menu, select [RESET]
→
[CLEAR FILTER HOURS].
(
→
page 121 for resetting the filter usage time)
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Filter
- NP905/NP901W 1
- Important Safeguards 5
- Installation 5
- Fire and Shock Precautions 6
- Lamp Replacement 7
- A Lamp Characteristic 7
- About High Altitude mode 8
- Important Information 10
- Table of Contents 11
- 4. Convenient Features 12
- 5. Using the Viewer 12
- 7. Maintenance 13
- 8. Appendix 14
- 1. Introduction 15
- Features you’ll enjoy : 16
- About this user’s manual 17
- Part Names of the Projector 18
- Carrying the Projector 19
- Top Features 20
- Terminal Panel Features 21
- Battery Installation 23
- Remote Control Precautions 23
- Selecting a Location 24
- Distance (Unit: m/inch) 25
- Making Connections 26
- HDMI IN 27
- Audio cable (not supplied) 27
- What is HDCP/HDCP technology? 29
- AUDIO IN 30
- AUDIO OUT 30
- Component 30
- Connecting Your VCR 31
- Connecting to a Network 32
- Projector control feature 32
- PC with wireless 34
- LAN card inserted 34
- PC with built-in wireless 34
- LAN function 34
- USB Wireless LAN Unit 34
- To wall outlet 35
- Turning on the Projector 36
- Selecting a Source 38
- WIRELESS 40
- Adjusting the Tilt Foot 41
- Auto Keystone Correction 42
- Manual Keystone Correction 42
- [Poor picture] 44
- [Normal picture] 44
- Increase volume 44
- Decrease volume 44
- Turning off the Projector 45
- After Use 46
- Getting Integrated Help 48
- Changing Lamp Mode 48
- Using a USB Mouse 49
- About Drag Mode: 51
- Cornerstone 52
- Viewing Two Pictures 56
- [POSITION] 56
- Disabling the Security 61
- Logging On 62
- Logging Off 62
- Creating or Adding a User 63
- Deleting a User 64
- Overview 65
- Preparation Before Use 65
- Structure of the HTTP Server 66
- Setting the Remote Access 73
- Starting the Remote Desktop 74
- Exiting the Remote Desktop 76
- Projecting slides (Viewer) 78
- Operating Viewer Menu 78
- Projecting a movie file 79
- To display a movie file: 79
- Setting Option for Viewer 81
- THUMBNAILS menu 82
- Exiting Viewer 82
- Changing Background Logo 83
- When using the mouse: 85
- Menu tree 86
- Menu Elements 88
- [ENTRY LIST] 90
- Using the Entry List 90
- [PICTURE] 92
- [PRESET] 92
- [DETAIL SETTINGS] 93
- [IMAGE OPTIONS] 95
- 6. Using On-Screen Menu 100
- Using Off Timer [OFF TIMER] 104
- [INSTALLATION(1)] 110
- Adjusting 112
- [INSTALLATION(2)] 113
- [NETWORK SETTINGS] 113
- [GENERAL] 114
- [PROJECTOR NAME] 115
- ACCOUNT LOCK 123
- [SECURITY] 124
- [USAGE TIME] 131
- [SOURCE (1)] 132
- [SOURCE (2)] 132
- [WIRED LAN] 133
- [WIRELESS LAN (1)] 133
- [WIRELESS LAN (2)] 134
- [VERSION (1)] 134
- [VERSION (2)] 134
- Replacing the Lamp 139
- Note for US Residents 141
- Specifications 145
- Cabinet Dimensions 149
- Distance Chart 150
- Using the Chart 151
- 1115 1214 13 153
- 5 4 3 2 1 153
- Compatible Input Signal List 154
- PC Control Codes 155
- Cable Connection 156
- WIRELES S 157
- WIRE LESS 158
- Troubleshooting Check List 160
- TravelCare Guide 162
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