BenQ VM2221 Product Service Manual page 99

10. test in the factory PC or Pattern
area
Generator
PC or Pattern
11. Speaker function
examination
Generator
12. remote control 1. PC or Pattern
function testing
Generator
2.
Generator
3. DVD or VCD
4. VG-848
5. FLUKE 54200
DDC function PC
13.
checking Generator
PC or Pattern
CR value
14.
adjustment Generator
Opposite white checks
screen
1280*800/60Hz
1997 1440*900/60Hz
2297/2097
1680*1050/60Hz
TV Signal
or Pattern D620 DDC Test Card
1. In User area, press CH▼ Key and
1697 Power Key, then press CH▲ Key and
Power Key, then enter into factory
area.
U
2. sing
pressSOURCE+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.
1. DDC Tester direct through signal line
to get into machine EEPROM to
save and take data.
2. to confirm data whether is right
1. Make BRIGHTNESS and CONTAST
shift to the mix and black picture，to
measure the mix brightness.
2. Make BRIGHTNESS and CONTAST
shift to the mix and white picture，to
measure the mix brightness.
. 3. Also figure out that CR value
18
the remote control to