ViewSonic N4200w-1 VS10945-1M Service Manual page 26

Power Saving
Soft Power Off
□OSD FUNCTION CHECK
A. Timing: Video mode: 480i / PC mode: 640*480@75Hz.
B. Pattern: ColorBar.
C. Make sure that each FUNCTION have right action.
D. After adjusting and confirming no error, we can deliver the LCD display until it set as
default.
□VIDEO RECEIVING TEST
AV receives supply oscillator: AV1/AV2/S-Video1/S-Video2/HDMI1/HDMI2/HDTV1/HDTV2 are from
DVD to LCD TV; Examines whether the image and the sound is normal.
(1)AV1/AV2: Video cable (Yellow), Audio cable (Left(White), Right(Red)sound track).
(2)S-Video1/S-Video2: S-Video signal cable (Yellow), Audio cable ( Left(White), Right(Red) sound track).
(3)VGA: D-sub cable (Black)
(4)HDMI1/HDMI2: HDMI cable (Black)
(5)HDTV1/HDTV2 (YPbPr/YCbCr): brightness signal cable (Green), Component signal cable(Red, Blue),
Audio cable(Left(White), Right(Red)sound track).
□VIDEO/AUDIO OUTPUT TEST
(1) HDTV/AV output: A 42" LCD display in AV pattern, inputs the CVBS signal; the output meets HDTV,
HDTV links to another 42" LCD display sending HDTV pattern. Examines two 42" LCD display
whether they show same images. But their sound doesn't affect each other and could adjust volume
respectively to examine. AV output test are likewise.
(2) With extra amplifiers, audio output should still work under any pattern except PC pattern.
□FACTORY PRESET
After final QC step, we have to erase all saved changes again and restore the factory defaults.
You should do "Factory Preset" again.
Select "Factory Preset" from OSD.
Power off the LCD display.
Turn off the LCD display by pressing "Power" button.
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N4200w-1