Overview - Epson Stylus COLOR 760 Service Manual

EPSON Stylus COLOR 760

3.1 Overview

This chapter describes how to troubleshoot problems. It consists of the
sections shown in the flowchart below. When identifying and
troubleshooting problems, be sure to proceed to the correct section
specified in the flowchart.
Figure 3-1. Troubleshooting Flowchart
Troubleshooting
Following sections show detailed information on each step in the
flowchart. Be sure to perform troubleshooting without neglecting the
correct order specified in each section.
First of all, following tables show you the Motor Resistance and the
sensor check informations.
Table 3-1. Motor Resistance and Measurement Procedure
Motor Name Location
CR Motor CN14 (Main board)
PF Motor CN13 (Main Board)
Table 3-2. Sensor Check an Measurement Procedure
Sensor
PE Sensor CN4 Pin 1 & 2
ASF/HP Sensor CN6 Pin 1 & 2
PF Motor CN12
Enscorder Sensor
CR Motor CN8
Encorder Sensor
Black I/C CN9
Detection Sensor Pin 15 & Pin 18
Color I/C CN9
Detection Sensor Pin 15 & Pin 17
Overview
Check Point
Pin 1 & 2, 31.1 OHM +/- 25%
Pin 1 & 2, 31.1 OHM +/- 25%
Check Point Finding
• 0V
Detect the Paper
• 5V No Paper
• 0V
Detect the ASF HP
• 5V Not detect ASF HP
• 0V
Transparency Slit
• 5V
Black Slit
• 0V
Transparency Slit
• 5V
Black Slit
• 5V
I/C is not installed
• 0V I/C is installed
• 5V
I/C is not installed
• 0V I/C is installed
Revision C
Description
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