Aiwa TV-FA2500, Руководство по обслуживанию

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PAGE 2
White Balance Adjustment
: Adjustment Menu No. 19-24 (PAGE 2 - 1 to 2 - 5)
*User’s picture quality will be cleared when the adjustment menu screen appears.
Input signal : White raster
Contents of Adjustment : 1. R CUT OFF
Contents of Adjustment : 2. G CUT OFF
Contents of Adjustment : 3. B CUT OFF
Contents of Adjustment : 4. G DRIVE * More than 20 minutes of aging is required
5. B DRIVE before the adjustment.
Contents of Adjustment * The whole process should be repeated
several times for the adjustment.
Measuring instrument : Pattern generator
Cut Off Adjustment :
2-1. Use the pattern generator to input the white raster signal.
2-2. Using the volume keys on the jig remote controller, fix the figure of the strongest color on the
screen to 7F and adjust the other 2 cut off figures until a white picture appears on the screen.
(Fig.2-1)
Drive Adjustment :
2-3. Using the volume keys on the jig remote controller, bring the figure of the 4. G DRIVE up to more than 60 (in hexadecimal figure) till
the color becomes greenish.
2-4. Then reduce the numeric figure to the point where the greenish color disappears completely.
2-5. Use the volume keys on the jig remote controller to increase the numeric figure of the 5. B DRIVE up to more than 60 (in hexadecimal
figure) till the color becomes bluish.
2-6. Then reduce the numeric figure to the point where the bluish color disappears completely.
2-7. Repeat the process of 2-1 to 2-6 for several times and adjust for whiter look.
2-2. BRIGHT Sub-brightness Adjustment
Adjustment Menu No.24 (Page 2-6)
Input signal : Stair step
Measuring instrument: Pattern generator
1. Using the volume keys on the jig remote controller, adjust the scale of the second last
from right to be slightly brightened. (Fig. 2-2)
Focus Adjustment :
Input signal : Dot pattern
Adjustment point : SFR located at upper part of FBT (T601)
Measuring instrument : Pattern generator
•
Adjust SFR which is located at upper part of FBT (T601) in order to get the best focus for
the dot.
Screen Adjustment :
Input signal : No signal (No Raster)
Adjustment point : SFR located at lower part of FBT (T601)
1. Enter to the “Aging Mode Screen” by pressing “TEST” key on the jig remote controller
once.
2. Press “10” key of the numeric channel keypad to get a horizontal single line screen.
(Fig. 2-3)
3. Adjust SFR located at lower part of FBT (T601) until the horizontal line starts to be
slightly brightened.
4. Repeat the process of step 2 and return to the “Adjustment Menu Screen”.
PAGE 2
SUB BRIGHT 20
2nd from right Fig. 2-2
Fig. 2-3