ViewSonic N1930w-2M, Service Manual

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7. DTV FUNCTION TEST
Election INPUT SOURCE cut to TV, so that OSD selected "TV / CATV" election AIR, selct CH
UP / DOWN KEY confirm whether the program contains AIR both NTSC and ATSC system were
mixed together. At this point in tuner to the joints on the need for 'AIR NTSC and ATSC 2 both
systems were mixed with the signal
Election INPUT SOURCE cut to TV, so that OSD selected "tuner MODE" CATV, encumbered
CH UP / DOWN KEY confirm whether the program include CATV and DIGITAL CABLE two
systems are mixed together. At this point in tuner to the need for a joint 'CATV and DIGITAL
CABLE two systems are mixed in a the signal
8. YPbPr, S-VIDEO, AV, TV, DTV’S FUNCTION TEST
A. Input YPbPr, S-VIDEO, AV , TV, DTV’S signal and check.
B. Input USA air channel (TABLE 1) and USA CATV channel for TV channel.
Under YPbPr MODE, Make sure the 408i, 480P, 720P, 1080i is right.
9. AUDIO FUNCTION TEST
A. Audio input includes PC /DVI AUDIO IN, S-VIDEO/AV AUDIO IN and YPbPr AUDIO IN.
B. Under PC MODE, input PC AUDIO signal, checks whether the action of AUDIO IN is right.
C. Under S-VIDEO/AV MODE, input L/R AUDIO signal, checks whether the action of AUDIO
IN is right.
D. Under YPbPr MODE, input L/R AUDIO signal, checks whether the action of AUDIO IN is
right.Under HDMI MODE, checks whether the action of AUDIO IN is right Under TV MODE,
checks whether the action of AUDIO IN is right.
E. In DTV mode, the input signal ATSC, confirmed AUDIO LANGUAGE and the normal
movements PARENT
10.Under PC MODE, input PC AUDIO signal, determines whether the action of INT SPEAKER
output is right. Meets earphone with the EARPHONE, Determined whether the action of
EARPHONE output is normal.
11.DDC EDID confirm
VGA EDID confirm
By P502 VGA CONNECTOR DOWNLOAD EDID confirm whether or not normal
HDMI EDID confirm
By P501 HDMI CONNECTORS DOWNLOAD EDID confirm whether or not normal
12.All Modes Reset
After final QC step, we must to erase all saved changes again and restore the factory defaults.
You should do “All Mode Reset” again.
Turn off the LCD TV by pressing “Power” button
13.BURN IN Mode access methods
Key Pad followed by pressing the "MENU" + "INPUT" 2 KEY entered BURN IN mode
14.DCR function confirm In all source. (N1930W2M model only)
A. DCR turn ON.
B. Input full white pattern then measure the luminance. For example Value A
C. Input full dark pattern the measure the luminace. For example Value B
D. These two value ratio must be more than 8000. (A/B).
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N1930w-2M
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