Instruction/ maintenance manual of the product HD225 Knoll
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HD225 HDTV Projector Users Manual v1.1.
2 FCC Warning Note: This equipment has been tested and found to comply w ith the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limit s are designed to provide reasonable protection against harmful interference in a residential installation.
3 TABLE OF CONTENTS Introduction 5 Positioning the projector 6 Video connections 7 Connecting a video device 7 Displaying a video image 9 Connecting a computer 10 Shutting down the projector 11 Troubl.
4 Important Operating Considerations for Safety • Place the projector in a horizontal position with no greater than 8-degrees forward or backwards tilt. • Locate the projector in a well-ventilated area without any obstructions to intake or exhaust vents.
5 Introduction Your new Knoll HD225 projector from Knoll Systems is specifically designed for home cinema applications. It has native 1280x720 resolution. The projector is easy to connect, easy-to- use, and easy to maintain. *The lens cap tether ships in the Document ation Pack.
6 A 3.5mm mini-jack trigger provides 12- volt current. This provides a constant output while the projector is on. For example, if you connect your projection screen to the trigger, when you turn on the projector the screen will move down; when you turn the projector off, the screen will return to the storage position.
7 Video connections You can connect VCRs, DVD players, camcorders, digital cameras, video games, HDTV receivers, and TV tuners to the projector. (You cannot directly connect the coaxial cable that enters your house from a cable or satellite company; the signal must pass through a tuner first.
8 Connecting a video device If your video device has more than one output, se lect the highest quality one. DVI video has the best quality, followed by component video, S-vi deo, and then composite video.
9 Displaying a video image Remove the lens cap. Press the Pow er button on the top of the projector or the remote. The fans start to run. When the lamp comes on, the startup screen is displayed. It can take a minute for the image to achieve full brightness.
10 If the image is not square, adjust the vertical keystone using the buttons on the keypad. Press the upper Keystone button to reduce the upper part of the image, and press the lower Keystone button to reduce the lower part.
11 Shutting down the projector The projector automatically blanks the screen after no active source is detected for 30 minutes. This blank screen helps preserve the life of the projector. The image returns when an active source is detected or a remote or keypad button is pressed.
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14 Still having problems? If you still need assistance, visit our website or call us. See the inside of the back cover for support contact information.
15 Using the keypad buttons Most buttons are described in detail in other sections, but here is an overview of their functions: pow er –turns the projector on (page 9) and off (page 11). menu –opens the on-screen menus (page 17). select –confirms choices made in the menus (page 17).
16 • Source buttons to switch among sources (to assign a parti cular source to a source button, see page 21) and a source toggle • Resize button to change the Aspect Ratio (see page 18) • Auto I.
17 Optimizing video images After the video device is connected properly and t he image is on the screen, you can optimize the image using the onscreen menus. For general information on using the menus, see page 17. • Adjust the Keystone, Contrast, Brightness, Color, or Tint in the Picture menu.
18 Picture menu To adjust the following six settings, highlight the setting, press Select , use the up and down arrows to adjust the values, then press select to confirm the changes. Vertical Keystone : adjusts the image vertically and makes a squarer image.
19 4:3 : resizes the image from its original version to fit a standard 4:3 aspect ratio screen. If you have a 4:3 source on a 16:9 screen, the image is placed in a 16:9 space, so black bars appear at the sides of the image. Letterbox text : preserves the 16:9 aspect ratio and maximizes readability of the text.
20 Overscan : (video sources only) removes noise around the video image. Advanced settings Sharpness : (video sources only) changes the clarity of the edges of a video image. Select a sharpness setting. Color Space : This option applies to computer sources.
21 Settings menu Audio : allows adjustments to the volume and mute, and turns the projector’s startup Chime on and off. Sources : allows you to assign a particula r input to a specific source key on the remote. Also allows selection of a default Startup Source and enables or disables Autosource and RGB Video.
22 Sleep Timer : allows you to force the projecto r to automatically shutoff after 4 hours. Screen Save : automatically blanks the screen with a black color after no signals are detected for a preset number of minutes. The image returns when an active source is detected or a remote or keypad button is pressed.
23 Service : to use these features, highlight them and press Select . Factory Reset : restores all settings (except Lamp Hours) to their default after displaying a confirmation dialog box. Lamp Reset : resets the lamp hours counter in the About menu to zero.
24 4 Remove the two screws on the lamp module. WARNINGS : • To avoid burns, allow the projector to cool fo r at least 60 minutes before you replace the lamp . • Unplug the power cord before replacing the lamp. • Do not drop the lamp module. The glass may shatter and cause injury .
25 Cleaning the dust filters In dirty or dusty environments, the dust filters can become clogged, causing high temperatures inside the lamp module. These high temperatures can impact lamp performance and operating life. Routine maintenance to remove dust and dirt from the filters lowers the lamp operating temperature and prolongs lamp life.
26 Red LED behavior and projector errors If the projector is not functioning properly and the red LED is blinking, consult Table 2 to determine a possible cause. There are two-second pauses between the blinking cycles. Table 3: Red LED Behavior Explanation One (1) blink The lamp won’t strike after five attempts.
27 Limited Warranty Knoll Systems, Inc. (“Knoll”) w arrants that each HD225 (“the Product”) sold hereunder w ill conform to and function in accordance with the w ritt en specifications of Knoll.
An important point after buying a device Knoll HD225 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Knoll HD225 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Knoll HD225 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Knoll HD225 you will learn all the available features of the product, as well as information on its operation. The information that you get Knoll HD225 will certainly help you make a decision on the purchase.
If you already are a holder of Knoll HD225, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Knoll HD225.
However, one of the most important roles played by the user manual is to help in solving problems with Knoll HD225. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Knoll HD225 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
