BenQ VM2221 Product Service Manual page 24

1. DVD PLAYER
2. VG-848
3. FLUKE 54200
6.6 S-VIDEO testing
PC or Pattern
Generator
6.7 VGA testing
a. Over frequency PC or Pattern
testing
Generator
b. Warning picture, 1. PC / Pattern Generator
Power Saving 2. power model
And power
examination
Receive DVB numeral
signal
7. DT DTV checkment
8. AUDIO adjustment
PC or Pattern
Generator
Sound source
Preset mode
Set the signal at normal
frequency
To put Monitor in USER area,
Signal lines do not connect any
signal.
Any Patten
24
1. Press SOURCE Key to select S-VIDEO.
2. According to signal source, doing picture and
volume test.
3. Press MENU to open OSD.
4. Press CH▲▼Key to select and press VOL▲
Key to enter ,after that ,doing each function
and confirm whether each function is right.
5. After finished, choose MENU to exit.
1. Press SOURCE Key to select VGA.
2. According to signal source, doing picture and
volume test.
3. Press MENU to open OSD.
4. Press CH▲▼Key to select and press VOL▲
Key to enter. After that, doing each function
and confirm whether each function is right.
5. After finished, choose MENU to exit.
Check OSD whether display "Out of range"
1. Check OSD whether display "No Signal＂.
2. Keep no signal for 10 seconds, and then enter
into Power Saving.
3. Check LED whether melt red light.
4. Check Power saving power whether < 1W.
5. Max input power
2297 whether< 60W.
2097/1997/1697 whether< 48W.
6. Power OFF is LED OFF.
picture is clear and fluent
Sound without noise
1. Press MENU Key to open OSD.
2. Press VOL▲▼Key to choose Audio.
3. After finished, choose MENU to exit.