BenQ VM2221 Product Service Manual page 25

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
11. Speaker function PC or Pattern
examination
Generator
12.remote control 1. PC or Pattern
function testing
Generator
2. TV Signal Generator
3. DVD or VCD
4. VG-848
5. FLUKE 54200
Opposite white checks screen
1697 1280*800/60Hz
1997 1440*900/60Hz
2297/2097 1680*1050/60Hz
25
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
1. In User area, press CH▼ Key and Power Key,
then press CH▲ Key and Power Key, then
enter into factory area.
2. Using the remote
SOURCE+62580，also can enter factory area
3. Confirm OSD picture whether display in right
below
**97-*I1
*********
date*** edition***＂
1. press VOL▲▼Key to VOLUME .
2. adjust ▲ ▼ Key to examine whether
controlled value.
3. Check if the volume out of true.
1. Check if in any mode, each function is normal.
control to press