21. Video test group Tests the circuit blocks related to the video display. (1) TV out test Tests to output the video signal from the TV-OUT terminal. The NTSC TV receiver is necessary. Connect the TV-OUT terminal to the NTSC TV receiver. Check that the color bar signal appears. (2) Video test Tests the various video modes. A part of display is not shown as the video signal is displayed partly outside the screen in some tests of LCD (i.e., 1024 x 768 mode) when using the SVGA (800 x 600) displays. But this is normal.