Adjustment Procedure - Hitachi ED-S3170A Service Manual

Adjustment procedure 2

(visual inspection)
1. First adjust [MIN] tone [G:].
2. Select [No.2] [G:].
If the background is [G] monochrome, press the
[MENU SELECT] key on the Remote control
transmitter to change to solid white.
3. View measurement point [No.2] and [No.3].
Lower the [G] color intensity only of the color
point whose [G] color is more intense than
measurement point [No.1].
4. View measurement point [No.10] and [No.11].
Lower the [G] color intensity only of the color
point whose [G] color is more intense than
measurement point [No.1], and raise the
intensity of the point whose color intensity is
lower than measurement point [No.1].
5. Now adjust the [MIN] tone for colors [R] and [B].
No. 2 deviation range
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No. 4 deviation range
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No. 6 deviation range
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No. 14 deviation range
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ED-S3170A/ED-X3270A
No. 10 deviation range
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No. 12 deviation range
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No. 7 deviation range
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No. 15 deviation range
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10
6. View measurement points [No.2], [No.3],
[No.10] and [No.11]. Adjust the [R] and [B] of
each measurement point so that they have the
same color as measurement point [No.1].
Adjustment technique:
First, adjust [B:] of the point whose color is to be
adjusted so that it approximates that of [No.1]. If
[R:] is low at this time, the image will have cyan
cast, in which case [R:] is increased. On the other
hand, if [R:] is excessive, the image will have a
magenta cast, in which case [R:] is decreased.
Overall, a cyan cast makes it easy to see color shading.
7. Next, view measurement points [No.4], [No.5],
[No.12], [No.13] and make similar adjustments.
8. Then adjust measurement points [No.6], [No.7],
[No.8], [No.9], [No.14], [No.15], [No.16] and [No.17].
This completes the [MIN] tone adjustments.
9. Make similar another three tones as described
in steps 1 to 8 above.
No. 3 deviation range
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No. 5 deviation range
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No. 8 deviation range
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No. 16 deviation range
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No. 11 deviation range
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No. 13 deviation range
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No. 9 deviation range
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No. 17 deviation range
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