Zenith A19A02D Service Manual page 25

the chroma Off. Check that the set displays a good
gray scale from black to white. If black level is too
high, readjust the item #9 RF Brightness.
7. Return the color level control to preset.
8. Select "Warm" in the user video menu under Color
Temp. Then adjust items 22 R Cut, 23 G Cut, 24 B
Cut, 25 G Gain 2 and 26 B Gain 2 according to the
following formulas:
R Cut2 Warm = R Cut 1 Cool +3
G Cut2 Warm = G Cut 1 Cool +3
B Cut2 Warm = B Cut 1 Cool +4
G Gain2 Warm = G Gain 1 Cool -25
B Gain2 Warm = B Gain Cool -48
9. Select "Cool" in the user video menu under Color
Temp.
CM150
SERVICING (continued)
3-5
GA - SERVICING