Read Panasonic PT-RZ21KE / PT-RS20K Service Manual online
ADJ-21
SECTION 3 ADJUSTMENTS
< RZ21K / RS20K >
7. Next, move the zoom position value to [3500] or less temporarily with q w a s button, then zoom and align the right
edge of projection screen to the marking position.
• If it goes beyond the marking position, take step 7 again.
8. Read the zoom position value at this time and use it as the DAC value (A).
9. The difference between the DAC value (A) and 3600 is the backlash correction value.
Zoom backlash correction value = DAC value (A) - 3600
10. Select "ZOOM BACKLASH CORRECTION" and set the backlash correction value with the q w button.
3600
- +
ZOOM POSITION
3460
- +
ZOOM POSITION
36**
- +
ZOOM POSITION
Zoom position value
3600 → 3500 or less → 36**
The right edge of the projection screen to the marking
（Fit to marking position from TELE side）
LENS CALIBRATION:ET-D75LE10
SHIFT/FOCUS/ZOOM
SHIFT/FOCUS
SHIFT/FOCUS
**
- +
ZOOM
ZOOM BACKLASH CORRECTION
MENU SELECT
ADJUST
a
Set the calculated value
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