Calibration; Lens Calibration; Light Sensor (Abp) Calibration - Ricoh Sargas-PJ1 Field Service Manual

4. Adjustment

Calibration

Lens Calibration

After replacing the main board, Lens Calibration must be done.
If you execute lens calibration, the lens is returned to the home position using a stepping motor.
Since alignment error occurs after the machine has been used for some time, lens calibration must be
done to return the lens to the reference position and reset the internal positional information.
This can be done by users too.
1. Put the projector on a horizontal surface.
2. Press the "Menu" key to enter the OSD menu.
3. Select "SETUP"-> "Lens Function" -> Lens Calibration.
4. Select "Yes", and then press "Enter".

Light Sensor (ABP) Calibration

After replacing the main board, optical engine, or filter wheel, Light Sensor (ABP) Calibration must be
done.
During light sensor (ABP) calibration, the color balance of the projected light is adjusted using a sensor
in the optical engine.
The laser light source separately creates RGB (and other) light beams. This function is used to adjust the
light emission balance.
The change in the white balance due to deterioration over time varies between each color. Therefore,
color balance adjustment is required periodically.
1. Put the projector on a horizontal surface.
2. Get into service mode.
3. Select "Light Sensor (ABP) Calibration".
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(page 78 "How to enter the Service Mode")