BenQ VM2221 Product Service Manual page 111

Receive
numeral signal
7. DTV checkment
8. AUDIO adjustment PC or Pattern
Generator
Sound source
8.1 Sound mode
8.2 Bass
8.3 Treble
8.4 Balance
9. CI function test CI card
10. Test in the factory PC or Pattern
area
Generator
DVB
Any Patten
Opposite white
screen
1280*800/60Hz
1997 1440*900/60Hz
2297/2097
1680*1050/60Hz
30
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.
1. Press CH▲▼Key to choose Sound
mode.
2. Press VOL▲▼Key set upon clients
requirements. Default is User.
1. Press VOL▲▼Key set low pitch
dimension.
2. When leaving the factory, it is settled 50
1. Press VOL▲▼Key to set high pitch
dimension.
2. When leaving the factory, it is settled 50
1. Press VOL▲▼ Key to set balance
2. When leaving the factory, it is settled in
middle
1. Plug in CI card
2. Check if picture and image is normal
checks 1. In User area, press CH▼ Key and Power
1697 Key, then press CH▲ Key and Power
Key, then enter into factory area.
2. Using the remote control to press
SOURCE+62580，also can enter factory
area
3. Confirm OSD picture whether display in
right below
**97-*I1
*********
date*** edition***"