Problem

Possible Solution

There are black

This may occur on a 4:3 TV if the 4:3 OVERRIDE setting

bars on all four

is OFF. To set 4:3 SD programming to fill the screen,

sides of the picture

depending on the capabilities of the TV, set

 

4:3 OVERRIDE to 480i or 480p.

 

This may occur on a 16:9 TV if the active video for an SD

 

broadcast is in letterbox format. To confirm, wait for a

 

commercial or look for a graphic, such as a network logo.

 

If the commercial fills the screen from top to bottom, or

 

the graphic appears below the active video, the program

 

is being letterboxed by the broadcaster. You can

 

minimize this by activating the zoom feature on the TV.

 

A broadcaster may include black bars on either side of a

 

wide screen broadcast. This is called a “hybrid” aspect

 

ratio and results in a black border surrounding the video

 

on a 4:3 TV. Because this is part of the broadcast, the

 

cable terminal cannot correct the video. You may be able

 

to minimize the border using the zoom feature on the TV.

 

 

The cable terminal

The DCT3400 includes an integrated hard drive and a

is making a

fan for cooling. During normal operation, the DCT3400

humming noise.

emits a low humming noise, similar to a personal

 

computer. The noise varies in volume occasionally when

 

the speed of the internal fan adjusts to changes in the

 

temperature around the DCT3400. Please note the hard

 

drive will stay on even when the DCT3400 is turned off.

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Motorola DCT3400 Series manual Bars on all four, Sides of the picture, Is making a, Humming noise