Overview; Required Adjustment List; Required Equipment/Tools - Epson EMP-1825 Service Manual

EMP-1825/EMP-1815/EMP-1810

5.1 Overview

This chapter describes the adjustment procedures required after repairing or replacing certain
parts.

5.1.1 Required Adjustment List

The adjustment required after repair work is listed below.
Adjustment name
G-Sensor's Zero
Point Adjustment
CMOS
Image Sensor
Calibration

5.1.2 Required Equipment/Tools

The adjustment procedures require the following equipment and tools.
Adjustment name
G-Sensor's Zero
Point Adjustment
CMOS Image Sensor
Calibration
SEIKO EPSON
Table 5-1. Adjustment (Calibration)
Adjustment Item
Purpose
To reset abnormal G-Sensor's Zero
Point to adjust the Auto Keystone
Correction function.
• Judgment Process
1. Set the projector on an even
workbench in the standard sta-
tus, (refer to 5.2.1 "G-Sensor's
Zero Point Adjustment" (p.
and turn on the power.
2. Check the correction value in the
To adjust the "Quick Setup"
function, when replacing the IS
Board Assy, or the Optical Engine
and MAB set.
Table 5-2. Required Equipment/Tools
Required
Equipment
• Having a flat even surface.
Workbench
• The inclination to the forward/backward/left/right is within
0.5°. (Measure the value using a level.)
• The environment where no external light shines on the CMOS
Darkroom
Image Sensor.
• There are no strongly reflective things in front of the projec-
tor, such as a desk or a fixing metal or the like.
• Must be more than 70 inch and over.
Screen
• Must be a white matt coated screen.
• No distortion or no dirt on the screen.
• No foreign materials (tape or some reflective things) within
the projected image (with Zoom Ring set to Wide) and in the
outside of 40 cm left/right and 5cm above/below. (refer
toFigure
• There must be over 50 cm from the floor level to the setting
Workbench
position of the projector. (refer to
• No inclination. (standard: allowed inclination within 2° to the
forward/backward/Left/Right)
• The projection distance must be within 100 cm
jection distance: the distance between the projector and the
screen.)
In the case that the correction value in the
judgment is other than "0," execute the
adjustment setting the projector on an even
workbench. Start from the menu using the
menu button on the control panel. (refer to
5.2.1 "G-Sensor's Zero Point Adjustment"
(p. 3))
3))
Execute the adjustment in a darkroom
equipped with a screen setting the projector
according to the specified standard.
Requirements
5-1)
5-2
CONFIDENTIAL
Method
Figure 5-2)
±
2 cm. (Pro-
Revision:C