Read Panasonic PT-RZ21KE / PT-RS20K Service Manual online
ADJ-20
SECTION 3 ADJUSTMENTS
< RZ21K / RS20K >
1.13. Zoom motor backlash correction
f
Adjust when the accuracy of position numerical information is reduced by repeating the zoom operation.
1. Display the cross hatch test pattern with the main menu [TEST PATTERN]
and press the [ENTER] button.
2. The [TEST PATTERN COLOR] screen will be displayed. Select green and
press the [ENTER] button to project a green cross hatch pattern.
At this time, please make sure that focus is fine.
3. Enter the service mode, and select [PROJECTOR SETUP] → [LENS] → [LENS CALIBRATION] menu.
4. Select [ZOOM BACKLASH CORRECTION] and set the correction value to "0" with q w button.
5. Press the "ZOOM" button on the remote control, and set the zoom position value to [3700] or more with q w a s button
temporarily, and then set it to [3600].
• If it is moved lower than [3600], take step 5 again.
• Adjust focus if it is out of focus, do not adjust from now on.
6. In this state, place a mark on the right edge of the projection screen.
• Adjustable only when the projection lens with stepping motor is attached.
• Illustration is a display example.
LENS
LENS TYPE
LENS MEMORY
LENS INFORMATION SETTING
ET-D75LE10
LENS HOME POSITION
ACTIVE FOCUS OPTIMIZER
ACTIVE FOCUS OPTIMIZER
LENS CALIBRATION
MENU SELECT
SUB MENU
ENTER
LENS CALIBRATION:ET-D75LE10
SHIFT/FOCUS/ZOOM
SHIFT/FOCUS
SHIFT/FOCUS
21 - +
ZOOM
ZOOM BACKLASH CORRECTION
MENU SELECT
ADJUST
a
LENS CALIBRATION:ET-D75LE10
SHIFT/FOCUS/ZOOM
SHIFT/FOCUS
SHIFT/FOCUS
0
- +
ZOOM
ZOOM BACKLASH CORRECTION
MENU SELECT
ADJUST
a
ENTER
LENS
ZOOM
Please execute LENS CALIBRATION again,
when replacing lens.
when replacing lens.
3600
- +
ZOOM POSITION
ADJUST
LENL CALIBRATION
3600
- +
ZOOM POSITION
3740
- +
ZOOM POSITION
3600
- +
ZOOM POSITION
Zoom position value
3600 → Over 3700 → 3600
Marking
(Position zoomed from WIDE side to "3600")
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