Panasonic PT-L759U Service Manual page 49

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Note:
After completing adjustments, press the" MENU" button to release from"Lcd/Fan Adjust"
mode. (Adjustment data is memorized in EEPROM IC (IC6009, IC6010) by pressing" MENU"
button.) Otherwise, adjustment data 5.4.1. through 5.4.4. will be cancelled.
5.4.5. GREEN FOCUS ADJUSTMENT
Purpose:
To set the focus over the whole screen.
Symptom of Misadjustment:
The picture will be out of focus.
1. Supply Green crosshatch pattern signal and Project on the
screen.
2. Rotate the zoom ring on the projection lens to the wide setting.
3. Rotate the focus ring and adjust the focus on the lower center of
the screen (Portion (1)).
4. Loosen screws (A) and (B) of LCD Green Unit.
5. Insert a (-) screwdriver into Portion (a) and twist it to adjust the
focus on the upper right portion of the screen (Portion (2)).
After the adjustment, tighten screw (A) slightly.
6. Insert a (-) screwdriver into Portion (b) and twist it to adjust the
focus on the upper left portion of the screen (Portion (3)).
After the adjustment, tighten screw (B) slightly.
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