Nokia 447ZiPlus Service Manual page 25

17” colour monitor
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7-4. Auto Sizing Adjustment
To enter into the factory setting mode, operate according the following procedure.
Switch off the monitor first, then push and hold down the "SELECT" control key to power on again,
wait 1.0 second to release the " SELECT " key.The monitor is now in the factory setting mode, all the
data of adjustment will be set at the factory setting automatically.
a) Ensure completion of the HV. Adjustment before starting the preset adjustment.
b) Setup the timing table in your pattern generator.
c) Adjust the trapezoid and pincushion control to the optimized position for each mode.
d) Adjust the H. Center, H. Width, V. Center and V. Height to the optimized position for each mode
according to the specification.
e) Finally, switch off and on again, the monitor will revert to its normal state.
7-5. White Balance Adjustment
A. 9300K
§ Background White Balance
1. Apply a 53.6K Hz/85Hz (800 x 600) no video pattern.
2. CONTRAST : MAX, BRIGHTNESS : 190
3. R.G.B. Bias initially set at center, adjust screen VR (bottom of FBT) until background
brightness at 3.6 to 4.2 Cd/mm2
4. Adjust R
and B
Y=4.2 Cd/mm2 approx.(reference only)
§ Video Gain /White Balance
1. CONTRAST : MAX, BRIGHTNESS set at 1.0 Cd/mm2
2. Apply a 50 x 50mm solid block green pattern.
3. Close R.B. signal adjust Green gain to 31Ft/L
4. Apply a 50 x 50mm solid block white pattern.
5. Adjust R
and B
Y ~135Cd/mm2
B. 6500K
§ Background White Balance
1. Apply a 53.6kHz/85Hz (800 x 600) no video pattern.
2. CONTRAST : MAX, BRIGHTNESS : 190
3. R.G.B. Bias initially set at center adjust screen VR bottom of FBT until background brightness at 3.6 to
4.2 Cd/mm2
4. Adjust R
and B
to have the colour coordinates to x=0.283±.0.010,y=0.298(±0.010),
to get the colour coordinates as to x=0.283±0.015,y=0.298±0.015,
to have the colour coordinates as to x=0.313±.0.015,y=0.329(±0.015),
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