Nokia 447ZiPlus Service Manual page 26

17” colour monitor
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Y=4.2 Cd/mm2 approx (reference only).
5. Do not adjust the G2, must remain as it was.
§ 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
C. 7000K
§ 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 unfill background brightness at 3.6
to 4.2 Cd/mm2
4. Adjust R
and B
Y=4.2 Cd/mm2 approx. (reference only)
5. Do not adjust the G2 any longer, must remain as it was.
§ Video Gain & White Balance
1. CONTRAST : MAX, BRIGHTNESS : 150
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
to get the colour coordinates as to x=0.313±0.015, y=0.329 ±0.015.
to have the colour coordinates as to x=0.305±0.015,y=0.322(±0.015),
to get the colour coordinates as to x=0.305±0.015, y=0.322±0.015.
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