Dell™2100MP投影机用户指南
以下信息由所引用设备的供应商提供且未经Dell独立核实。这些信息服从下文所述约束条件及否认声明。
安全说明 (连接投影机前请阅读本章)
关于投影机
安装
使用投影机
故障处理
规格
管制通告
联系Dell
注释、注意和警告
注释："注释"表示重要信息，它可帮助您更好地使用投影机。
注意："注意" 表示潜在的硬件损害或数据丢失，并且告诉您如何避免这些问题。
警告："警告"表示潜在的人身伤害死亡或财产损失。
本文档内含信息若有变更，恕不通知。
©2003 Coretronic Corporation.
©2003 Dell Computer Corporation. 版权所有。
未经Dell计算机公司的书面许可，严禁任何人以任何方式进行复制。
本文所用商标：Dell 和DELL 徽标是Dell计算机公司的商标。DLP 和Texas Instruments 是德州仪器公司的注册商标。Microsoft 和Windows 是Microsoft公司的
注册商标。Macintosh 是Apple计算机有限公司的注册商标。
本文档中可能用到的其它商标和商品名称，或者指声明相应商标或者名称的实体，或者指他们的产品。除其自身的商标和商品名称之外，Dell计算机公司否认
对其它商标和商品名称的任何业主权益。
约束条件及否认声明
本文档内含的信息，包括所有的使用说明、警告和规章许可及认证，均由供应商提供且未经Dell独立核实或者测试。Dell对于因为遵守或者没有遵守这些说明
所引起的损坏无法承担责任。
有关本文档中引用部件的所有权、功能、速度或者质量的所有陈述或者声明均由供应商而非Dell提供。Dell特别否认了解任何此类陈述的正确性、完备性或者
已经证实。
2003年2月修订，版本A00
返回目录页
关于投影机：Dell™2100MP投影机
特征
设备
主机
控制面板
接线端口
遥控器
特征
单芯片0.55"TexasInstrumentsDLP™技术
高对比度双数据传输率（DDR）数字微镜设备
真正SVGA，800×600可寻址像素
4.0 磅（1.81 千克），重量轻，设计紧凑
1000 ANSI流明亮度（最大值），900 ANSI流明亮度（平均值）
图像自动调整到800×600全屏，比例压缩兼容 SXGA、XGA、SVGA、VGA及MAC
预设显示方式按钮可获得最佳影像输出
故障排除之视频自诊断功能
卓越的移动适配硬件，可以用3:2和2:2非隔行抓拍。
150-瓦用户可更换P-VIP灯泡
兼容Macintosh®计算机
兼容 NTSC, NTSC4.43, PAL, PAL-M, PAL-N, SECAM, 和 HDTV (1080i, 720P, 576P, 480i/P)
多功能遥控器
D型15针电缆，用于模拟视频连接
兼容高清晰度电视
用户友好的多语言屏显选单
先进的电子梯形失真校正
用户友好的控制面板，带背光
包括手提箱
设备
投影机随机带有如下所示的所有物件。检查装箱确保物件完整,如有丢失，请与Dell联系。
主机
电源线
VGA电缆（D型到D型）
S-video 电缆
USB电缆
复合视频电缆
D型到YPbPr转接电缆
手提箱
电池（两节）
遥控器
Dell 2100MP
投影机用户手册
Dell 2100MP
投影机快速启动卡
Dell 2100MP
投影机安全及保修手册
使用手册
主机
控制面板
1
控制面板
2
调焦环
3
镜头
4
提升支架按钮
5
遥控接收器
1
电源按钮
2
四方向键
3
梯形失真调整
4
温度告警指示灯
5
灯泡告警指示灯
6
重同步
7
选单
8
梯形失真调整
接线端口
9
视频源
1
VGA输入(D型)连接器
2
VGA输出（监视器回放）
3
红外线接收器
4
USB连接器
5
S视频插口
6
复合视频连接器
遥控器
1
指示灯
2
电源按钮(Power)
3
上一页按钮（向上翻页）（Previous Page）
4
四方向 按钮（Four Direction）
5
视频源按钮(Source)
6
重同步按钮(Resync)
7
梯形失真调整按钮 （Keystone Correction）
8
放大/缩小（Zoom）
9
隐藏按钮 （Hide）
10
静画按钮(Freeze)
11
选单按钮(Menu)
12
下一页按钮（向下翻页）（Next Page）
13
显示方式按钮 （Video Mode）
返回目录页
Contacting Dell
要通过电子方式联系Dell，可访问以下网站：
l www.dell.com
l support.dell.com (技术支持)
l premiersupport.dell.com premiersupport.dell.com (面向教育、政府、医疗和媒体/大型商业客户提供技术支持，其中包括大客户、白金客户
以及金牌客户)
要得到您所在国度的具体网址，请在下表中找到相应的国家。
注意：免费电话 仅适用于列出的国家境内。
如果需要联系Dell，您可以使用下表提供的电子地址、电话号码和代码。如果需要确定使用哪些代码，请联系当地的或者国际性电信运营商。
国家（城市）
国际接入码
国家代码
城市代码
部门名称或者服务区、网站及电子邮件地址
区号
本地电话号码及
买肥电话号码
Anguilla
General Support
toll free:800-335-
0031
Antigua and
Barbuda
General Support
1-800-805-5924
Argentina
(Buenos Aires)
International Access
Code:00
Country Code:54
City Code:11
Technical Support and Customer Care
toll free: 0800 444
0733
Sales
toll free: 0810 444
3355
Tech Support Fax
11
4515-7139
Customer Care Fax
11
4515-7138
Website: www.dell.com.ar
Aruba
General Support
toll-free:800-1578
Australia
(Sydney)
International Access
Code:0011
Country Code:61
City Code:2
E-mail (Australia): [email protected]
E-mail (New Zealand):
Home and Small Business
1-300-65-55-33
Government and Business
toll free: 1-800-633-
559
Preferred Accounts Division (PAD)
toll free: 1-800-060-
889
Customer Care
toll free: 1-800-819-
339
Corporate Sales
toll free: 1-800-808-
385
Transaction Sales
toll free: 1-800-808-
312
Fax
toll free: 1-800-818-
341
Austria
(Vienna)
Switchboard
01
491 040
Home/Small Business Sales
01
795676-02
International Access
Code:900
Country Code:43
City Code:1
Home/Small Business Fax
01
795676-05
Home/Small Business Customer Care
01
795676-03
Preferred Accounts/Corporate Customer Care
0660-8056
Home/Small Business Technical Support
01
795676-04
Preferred Accounts/Corporate Technical Support
0660-8779
Website: support.euro.dell.com
E-mail: [email protected]
Bahamas
General Support
toll-free:1-866-278-
6818
Barbados
General Support
1-800-534-3142
Belgium (Brussels)
International Access
Code:00
Country Code:32
City Code:2
Technical Support
02
481 92 88
Customer Care
02
481 91 19
Home/Small Business Sales
toll free: 0800 16884
Corporate Sales
02
481 91 00
Fax
02
481 92 99
Switchboard
02
481 91 00
Website: support.euro.dell.com
E-mail: [email protected]
E-mail for French Speaking Customers:
support.euro.dell.com/be/fr/emaildell/
Bermuda
General Support
1-800-890-0748
Bolivia
General Support
toll free: 800-10-0238
Brazil
International Access
Code:00
Country Code:55
City Code:51
Customer Support, Technical Support
toll free: 0800 90
3355
Technical Support Fax
51
481-5470
Customer Care Fax
51
481-5480
Sales
toll free: 0800 90
3390
Website: www.dell.com/br
British Virgin
Islands
General Support
toll-free:1-866-278-
6820
Brunei
Country Code:673
Customer Technical Support
(Penang, Malaysia)
604
633 4966
Customer Service
(Penang, Malaysia)
604
633 4949
Transaction Sales
(Penang, Malaysia)
604
633 4955
Canada
(North York, Ontario)
Automated Order-Status System
toll free: 1-800-433-
9014
International Access
Code:011
AutoTech (Automated technical support)
toll free: 1-800-247-
9362
Customer Care Home & Home Office & Small
Business
1-800-847-4096
Customer Care Medium, Large, Commercial,
Government (100+ Employees)
1-800-326-9463
Technical Support Home & Home Office & Small
Business
1-800-847-4096
Technical Support Medium, Large, Commercial,
Government (100+ Employees)
1-800-387-5757
Sales (direct-from outside Toronto)
1-800-387-5752
Sales (direct-from within Toronto)
416-758-2200
Sales (federal government, education, and
medical)
1-800-567-7542
TechFax
toll free: 1-800-950-
1329
Cayman Islands
General Support
1-800-805-7541
Chile
(Santiago)
Country Code:56
City Code:2
Sales, Customer Support, and Technical Support
toll free: 1230-020-
4823
China
(Xiamen)
Country Code:86
City Code:592
Tech Support website:
support.ap.dell.com/china
Tech Support E-mail: [email protected]
Tech Support Fax
818-1350
Home and Small Business Technical Support
toll free: 800 858
2437
Corporate Accounts Technical Support
toll free: 800 858
2333
Customer Experience
toll free: 800 858
2060
Home and Small Business
toll free: 800 858
2222
Preferred Accounts Division
toll free: 800 858
2062
Large Corporate Accounts North
toll free: 800 858
2999
Large Corporate Accounts North Government
and Education
toll free: 800 858
2955
Large Corporate Accounts East
toll free: 800 858
2020
Large Corporate Accounts East Government and
Education
toll free: 800 858
2669
Large Corporate Accounts Queue Team
toll free: 800 858
2572
Large Corporate Accounts South
toll free: 800 858
2355
Large Corporate Accounts West
toll free: 800 858
2811
Large Corporate Accounts GCP
toll free: 800 858
2055
Large Corporate Account Key Accounts
toll-free:800-858-
2628
Large Corporate Accounts Spare Parts
toll free: 800-858--
2621
Colombia
General Support
980-9-15-3978
Costa Rica
General Support
0800-012-0435
Czech Republic
(Prague)
International Access
Code:00
Country Code:420
City Code:2
Technical Support
02
22 83 27 27
Customer Care
02
22 83 27 11
Fax
02
22 83 27 14
TechFax
02
22 83 27 28
Switchboard
02
22 83 27 11
Website: support.euro.dell.com
E-mail: [email protected]
Denmark
(Horsholm)
International Access
Code:00
Country Code:45
Technical Support
70230182
Customer Care(Relational)
70230184
Home/Small Business Customer Care
32875505
Switchboard (Relational)
32871200
Fax Switchboard (Relational)
32871201
Switchboard (Home/Small Business)
32875000
Fax Switchboard (Home/Small Business)
32875001
Website: support.euro.dell.com
E-mail Support (portable computers):
E-mail Support (desktop computers):
E-mail Support (servers):
Dominica
General Support
toll free: 1-866-278-
6821
Dominican
Republic
General Support
toll free: 1-800-156-
1588
Ecuador
General Support
toll-free 999-119
El Salvador
General Support
01-889-753-0777
Finland
(Helsinki)
International Access
Code:990
Technical Support
09
253 313 60
Technical Support Fax
09
253 313 81
Relational Customer Care
09
253 313 38
Home/Small Business Customer Care
09
693 791 94
Country Code:358
City Code:9
Fax
09
253 313 99
Switchboard
09
253 313 00
Website: support.euro.dell.com
E-mail: [email protected]
France
(Paris) (Montpellier)
International Access
Code:00
Country Code:33
City Code:(1)(4)
Home and Small Business
Technical Support
0825
387 270
Customer Care
0825
823 833
Switchboard
0825
004700
Switchboard (calls from outside of France)
04
99 75 40 00
Sales
0825
004 700
Fax (calls from outside of France)
04
99 75 40 001
Website: support.euro.dell.com
E-mail: support.euro.dell.com/fr/fr/emaildell/
Corporate
Technical Support
0825
004 719
Customer Care
0825
338 339
Fax
01
55 94 71 01
Switchboard
01
55 94 71 00
Sales
01
55 94 71 00
Germany
(Langen)
International Access
Code:00
Country Code:49
Technical Support
06103
766-7200
Home/Small Business Customer Care
0180-5-224 400
Global Segment Customer Care
06103
766-9570
Preferred Accounts Customer Care
06103
766-9420
Large Accounts Customer Care
06103
766-9560
Public Accounts Customer Care
06103
766-9555
Switchboard
06103
766-7000
Website: support.euro.dell.com
E-mail: [email protected]
Grenada
General Support
toll free:1-866-540-
3355
Guatemala
General Support
1-800-999-0136
Guyana
General Support
toll free:1-877-440-
6511
Hong Kong
International Access
Code:001
Country Code:852
TechnicalSupport(Dimension™and
Inspiron™)
296-93188
TechnicalSupport(OptiPlex™,
Latitude™ ,andDellPrecision™)
296-93191
Customer Service (non-technical, post-sales
issues)
800-93-8291
Transaction Sales
toll free: 800 96 4109
Large Corporate Accounts HK
toll free: 800 96 4108
Large Corporate Accounts GCP HK
toll free: 800 90 3708
India
Technical Support
1600-33-8045
Sales
1600-33-8044
Ireland
(Cherrywood)
International Access
Code:16
Country Code:353
Ireland Technical Support
1850
543 543
UK Technical Support (dial within UK only)
0870
908 0800
Home User Customer Care
01
204 4095
Small Business Customer Care
01
204 4444
Corporate Customer Care
01
204 4003
UK Customer Care (dial number within UK only)
0870
906 0010
Ireland Sales
01
204 4444
UK Sales (dial within UK only)
0870
907 4000
SalesFax
01
204 0144
Fax
01
204 5960
Switchboard
01
204 4444
Website: support.euro.dell.com
E-mail: [email protected]
Italy
(Milan)
International Access
Code:00
Country Code:39
City Code:2
Home and Small Business
Technical Support
02
577 826 90
Customer Care
02
696 821 14
Fax
02
696 821 13
Switchboard
02
696 821 12
Website: support.euro.dell.com
E-mail: support.euro.dell.com/it/it/emaildell/
Corporate
Technical Support
02
577 826 90
Customer Care
02
577 825 55
Fax
02
577 035 30
Switchboard
02
577 821
Website: support.euro.dell.com
E-mail: support.euro.dell.com/it/it/emaildell/
Jamaica
General Support (dial from within Jamaica only)
1-800-404-9205
Japan
(Kawasaki)
International Access
Code:001
Country Code:81
Web site: support.jp.dell.com
Technical Support
toll free: 0120-981-
690
Technical Support Outside of Japanese
44
556-3468
Customer Care
44
556-4240
Korea
(Seoul)
International Access
Code:001
Country Code:82
City Code:2
Technical Support
toll free: 080-200-
3800
Sales
toll free: 080-200-
3600
Customer Service (Penang, Malaysia)
toll free: 604-633-
4949
Customer Service (Seoul, Korea)
080-200-3800
Fax
2194-6202
Switchboard
2194-6000
Latin America
Customer Technical Support (Austin, Texas,
U.S.A.)
512
728-4093
Customer Service (Austin, Texas, U.S.A.)
512
728-3619
Fax (Technical Support and Customer Service)
(Austin, Texas, U.S.A.)
512
728-3883
Sales (Austin, Texas, U.S.A.)
512
728-4397
SalesFax (Austin, Texas, U.S.A.)
512
728-4600
or 728-3772
Luxembourg
International Access
Code:00
Country Code:352
Technical Support (Brussels, Belgium)
02
481 92 88
Home/Small Business Sales (Brussels, Belgium)
toll free: 080016884
Corporate Sales (Brussels, Belgium)
02
481 91 00
Customer Care (Brussels, Belgium)
02
481 91 19
Switchboard (Brussels, Belgium)
02
481 91 00
Fax (Brussels, Belgium)
02
481 92 99
Website: support.euro.dell.com
E-mail: [email protected]
Macao
Country Code:853
Technical Support
toll free: 0800 582
Customer Service (Penang, Malaysia)
604 633 4949
Transaction Sales
toll free: 0800 581
Malaysia
(Penang)
International Access
Code:00
Country Code:60
City Code: 4
Technical Support
toll free: 1 800 888
298
Customer Service
4
633 4949
Transaction Sales
toll free: 1 800 888
202
Corporate Sales
toll free: 1 800 888
213
Mexico
International Access
Code:00
Country Code:52
Customer Technical Support
001-877-384-8979
or 001-877-269-3383
Sales
50-81-8800
or 01-800-888-3355
Customer Service
001-877-384-8979
or001-877-269-3383
Main
50-81-8800
or 01-800-888-3355
Montserrat
General Support
toll free:1-866-278-
6822
Netherlands
Antilles
General Support
001-800-882-1519
Netherlands
(Amsterdam)
International Access
Code:00
Country Code:31
City Code:20
Technical Support
20
674 4500
Home/Small and Medium Business
20
674 5500
Home/Small and Medium Business Fax
20
674 4775
Home/Small and Medium Business Customer
Care
20
674 4200
Corporate
20
674 5000
Corporate Fax
20
674 4779
Corporate Customer Care
20
674 4325
Website: support.euro.dell.com
E-mail: support.euro.dell.com/nl/nl/emaildell/
New Zealand
E-mail (New Zealand):
E-mail (Australia): au_te[email protected]
Home and Small Business
0800 446 255
Government and Business
0800 444 617
Sales
0800 441 567
Fax
0800 441 566
Nicaragua
General Support
001-800-220-1006
Norway
(Lysaker)
International Access
Code:00
Country Code:47
Technical Support
671 16882
Relational Customer Care
671 17514
Home/Small Business Customer Care
231 62298
Switchboard
671 16800
Fax Switchboard
671 16865
Website: support.euro.dell.com
E-mail Support (portable computers):
E-mail Support (desktop computers):
E-mail Support (servers):
Panama
General Support
001-800-507-0962
Peru
General Support
0800-50-669
Poland
(Warsaw)
International Access
Code:011
Country Code:48
Customer Service Phone
22
57 95 700
Customer Care
22
57 95 999
Sales
22
57 95 999
Switchboard
22
57 95 999
Customer Service Fax
22
57 95 806
Reception Desk Fax
22
57 95 998
Website: support.euro.dell.com
E-mail: [email protected]
Portugal
International Access
Code:00
Country Code:35
Technical Support
35
800 834 077
Customer Care
800 300 415
or 800 834 075
Sales
800 300 410
or 800 300 411
or 800 300 412
or 121 422 07 10
Fax
35
121 424 01 12
E-mail: support.euro.dell.com/es/es/emaildell/
Puerto Rico
General Support
1-800-805-7545
St. Kitts and Nevis
General Support
toll free:1-877-441-
4731
St. Lucia
General Support
1-800-882-1521
St. Vincent and the
Grenadines
General Support
toll free:1-877-441-
4740
Singapore
(Singapore)
International Access
Code:005
Country Code:65
Technical Support
toll free: 800 6011
051
Customer Service (Penang, Malaysia)
604
633 4949
Transaction Sales
toll free: 800 6011
054
Corporate Sales
toll free: 800 6011
053
South Africa
(Johannesburg)
International Access
Code:09/091
Country Code:27
City Code:11
Technical Support
011
709 7710
Customer Care
011
709 7707
Sales
011
709 7700
Fax
011
706 0495
Switchboard
011
709 7700
Website: support.euro.dell.com
E-mail: [email protected]
Southeast
Asian/Pacific
Countries
Customer Technical Support, Customer Service,
and Sales (Penang, Malaysia)
604
633-4810
Spain
(Madrid)
International Access
Code:00
Country Code:34
City Code:91
Home and Small Business
Technical Support
91
902 100 130
Customer Care
91
902 118 540
Sales
91
902 118 541
Switchboard
91
902 118 541
Fax
91
902 118 539
Website: support.euro.dell.com
E-mail:support.euro.dell.com/es/es/emaildell/
Corporate
Technical Support
91
902 100 130
Customer Care
91
902 118 546
Switchboard
91
722 92 00
Fax
91
722 95 83
Website: support.euro.dell.com
E-mail: support.euro.dell.com/es/es/emaildell/
Sweden
(Upplands Vasby)
International Access
Code:00
Country Code:46
City Code:8
Technical Support
08
590 05 199
Relational Customer Care
08
590 05 642
Home/Small Business Customer Care
08
587 70 527
Employee Purchase Program (EPP) Support
20 140 14 44
Fax Technical Support
08
590 05 594
Sales
08
590 05 185
Website: support.euro.dell.com
E-mail: [email protected]
E-mail Support for Latitude and Inspiron:
E-mail Support for OptiPlex:
E-mail Support for Servers:
Switzerland
(Geneva)
International Access
Code:00
Country Code:41
City Code:22
Technical Support (Home and Small Business)
22
0844 811 411
Technical Support (Corporate)
22
0844 822 844
Customer Care (Home and Small Business)
22
0848 802 202
Customer Care(Corporate)
0848 821 721
Switchboard
22
799 01 01
Fax
22
799 01 90
Website: support.euro.dell.com
E-mail:[email protected]
E-mail for French-speaking HSB and Corporate
Customers:
support.euro.dell.com/ch/fr/emaildell/
Taiwan
International Access
Code:002
Country Code:886
Technical Support (portable and desktop
computers)
toll free: 00801 86
1011
Technical Support (Servers)
toll free: 0080 60
1256
Transaction Sales
toll free:0800 651
228 or 0800 33 556
Corporate Sales
toll free:
0080 651 227/ 0800
33 555
Thailand
International Access
Code:001
Country Code:66
Technical Support
toll free: 088 006 007
Customer Service (Penang, Malaysia)
604
633 4949
Sales
toll free: 088 006 009
Trinidad and
Tobago
General Support
1-800-805-8035
Turks and Caicos
Islands
General Support
toll free:1-866-540-
3355
U.K.
(Bracknell)
International Access
Code:44
Country Code:44
Technical Support (Corporate/Preferred
Accounts/PAD [1000+ employees])
0870
908 0500
Technical Support (Direct/PAD and general)
0870
908 0800
Global Accounts Customer Care
01344
373 185
or 373 186
Corporate Customer Care
0870
908 0500
Preferred Accounts (500-5000 employees)
Customer Care
01344
373 196
Central Government Customer Care
01344
373 193
Local Government & Education Customer Care
01344
373 199
Health Customer Care
01344
373 194
Home/Small Business Sales
0870
907 4000
Home/Small Business Customer Care
0870
906 0010
Corporate/Public Sector Sales
01344
860 456
Website: support.euro.dell.com
Customer Care website:
dell.co.uk/lca/customerservices
E-mail: [email protected]
Uruguay
General Support
toll free:000-413-598-
2521
U.S.A.
(Austin, Texas)
International Access
Code:011
Country Code:1
Automated Order-Status System
toll free: 1-800-433-
9014
AutoTech (portable and desktop computers)
toll free: 1-800-247-
9362
Projectors Technical Support
toll free: 1-877-459-
7298
Customer Service
toll free: 1-800-624-
9897
Dell Sales
toll free: 1-800-289-
3355
or toll free: 1-800-
879-3355
Dell Outlet Store (Dell refurbished computers)
toll free: 1-888-798-
7561
Software and Peripherals Sales
toll free: 1-800-671-
3355
Spare Parts Sales
toll free: 1-800-357-
3355
返回目录页
Extended Service and Warranty Sales
toll free: 1-800-247-
4618
Fax
toll free: 1-800-727-
8320
Dell Services for the Deaf, Hard-of-Hearing, or
Speech-Impaired
toll free: 1-877-
DELLTTY
(1-877-335-5889)
U.S. Virgin Islands
General Support
1-877-673-3355
Venezuela
General Support
8001-3605
1
电源
2
镜头盖
关闭投影机电源
投影机在通过以下步骤正确地关闭之前，切勿将其插头拔下。
1. 按下电源按钮切断投影机电源。将在OSD上看到一条消息："Power Off the Lamp?"(关闭灯泡？)。
2. 再次按下电源按钮。冷却风扇将继续运行大约2分钟。
3. 当灯泡指示灯点亮为稳定的桔黄色时，请尽快更换灯泡。
4. 当温度指示灯点亮为稳定的桔黄色时，表示投影机过热。此时投影显示将自行关闭。待投影机冷却下来之后，投影显示可被再次打开并进行演示。如果
问题仍然存在，请与Dell联系。
5. 如果温度指示灯呈桔黄色闪烁，则表明某个投影机风扇故障，投影机将自动关闭。如果问题仍然存在，请与Dell联系。
6. 从电源插座和投影机上拔下电源线。.
7. 如果在投影机运行过程中偶然按下了电源按钮，则屏幕上将会显示一条"Power Off the Lamp?" 消息。要清除该消息，按下控制面板上的任意按
钮或者忽略该消息即可，5秒钟后该消息将消失。
调整投影图像
调整投影机高度
要升高投影机：
1. 按下升降支架按钮。
2. 将投影机升高到需要的显示角度，然后松开该按钮将升降支架底脚锁定到位。
3. 使用仰角校正齿轮对显示角度进行精细调节。
要降低投影机：
1. 按下升降支架按钮。
2. 降低投影机，然后松开该按钮将升降支架底脚锁定到位。
注意：为避免损坏投影机，投影机在放入手提箱中之前一定要把升降支架底脚完全缩回。
1
升降支架按钮
2
升降支架底脚
3
仰角校正齿轮
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