Understanding the
Analog and Digital Signals
Analog
Traditionally, televisions have received signals sent (broadcast) over the airwaves or via cable (CATV). These signals included the carrier wave and the picture and sound data. The picture and sound information is superimposed upon a carrier wave by varying the signal frequency and the signal amplitude. This varying signal method is also known as ANALOG. The television tuner selects the channel and decodes these signals and the television uses the decoded data to recreate the picture and sound.
Digital
The SDB receives DTV signals sent through the air as well. However, the digital signals are encoded differently. The digital signal represents the picture and sound information as zeros and ones. Both analog and digital transmissions are limited to six megahertz of bandwidth per channel. However, digital signals are compressed (made to fit in a much smaller space), therefore, more data can be transmitted within the same six megahertz bandwidth. This allows the digital signal to contain data as well as the picture and sound. The digital signal could contain information such as program guides.
Analog and Digital Tuners
The
Output Signals
The
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Choosing the Appropriate Connection Method |
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If you are connecting the Sanyo Digital Box to | Analog Jacks |
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an Advanced TV or component system, use |
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the SDB Component Video output jacks and |
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the digital audio out or analog audio L/R out |
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on the back of the box. |
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Otherwise connect your analog TV to the |
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A/V output jacks or to the “Out to TV” RF |
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terminal on the SDB back. |
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Figure 2—SDB Back Connections
The Main Menu
The Main menu is divided into three categories, Picture, Channel, and Setup. These categories appear as tabs across the top of the display. Each of these categories offers several features and various options for each feature. (The Features are in the left hand column and the options appear in the right hand column.) The available options will vary depending upon the type of signal being received and the type of output device you choose during the initial output device setup (Conventional TV or Advanced TV). (Figure 1.)
Accessing the Main Menu
You access the Main menu by pressing the MENU key on the remote control or front panel.
RESET
In the event of a software lockup use a paper clip to reset the SDB.
Figure 3—Main Menu Categories
Menu Key
Figure 4—Menu key locations
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