EPSON QX-10 MICROCOMPUTER SYSTEM TRAINING PROGRAM DECEMBER 1983 SBXEBT030 Published by: Xerox Corporation, Rochester, New York 14644 Prepared by: Multinational Documentation and Training Services Xerox Corporation, Rochester, New York 14644 Copyright 1983 by Xerox Corporation. All rights reserved. XEROX is a trademark of Xerox Corporation QX-IO is a registered trademark of Epson America, Inc.
TABLE OF CONTENTS PROGRAM OVERVIEW •••••••••••••••••••••••••• Module 1, Introduction ••••••••••••••• Module 2, Installation and Operation. Module 3, Service Documentation.
PROGRAM OVERVIEW This training program will prepare you to service the Epson QX-IO microcomputer system. You will learn how to use the service documentation for troubleshooting, removal and replacement of parts and adjustments. This program is divided into the following modules. MODULE 1 INTRODUCTION This module gives an overview of the hardware and software aspects of the QX-IO. It will contain information about the unique features of the QX-IO which are not common to most other microcomputers.
PROGRAM OVERVIEW PREREQUISITES You must have successfully completed the generic training program for microcomputers. PROGRAM OBJECTIVES You will be able to state, in writing, what troubleshooting techniques, repair procedures, and adjustments are unique to the QX-IO microcomputer. You will also be able to state, in writing, what the software and hardware differences are between the QX-IO and most other microcomputers.
MODULE " INTRODUCTION MODULE OVERVIEW This module will give you an overview of the hardware and software aspects of the QX-IO. It will contain information about the unique features of the QX-IO which are not common to most other microcomputers. PREREQUISITE Completion of the COURSE OVERVIEW. MODULE OBJECTIVE At the end of this module, you will be able to answer questions about the hardware and software differences between the QX-IO and most other microcomputers.
MODULE 1, INTRODUCTION Like the 820, the QX-IO system consists of a keyboard, monitor, and disk drive. However, unlike the 820, the QX-IO is a TPM* or CP/M* based microcomputer. The 820 and most other microcomputers presently use the CP/M operating system. TPM will run any application program written for CP/M. However, applications programs written for TPM may not run on a CP/M system. The customer can request either operating system before taking delivery of a QX-IO.
MODULE 1, INTRODUCTION SELF-TEST 11 Answer the following questions on a separate sheet of paper. Do not write in this book. After you have answered" the questions, check your answers with the feedback on the next page. 1. The QX-IO can be equipped with one, two, or three operating systems? 2. What are the names (acronyms) of the keyboard configurations that are available for the QX-IO? 3. Can the monitor zoom? 4.
MODULE " INTRODUCTION FEEDBACK 11 This page contains the feedback for the questions at the end of MODULE 1. 1. The QX-IO can be equipped with either of two operating systems, TPM or CP/M. 2. HASCI and ASCII are the names (acronyms) of the keyboard configurations available for the QX-IO. 3. Yes, the monitor can zoom. 4. No, the circuitboard slots for options are in the disk drive.
MODULE 2, INSTALLATION & OPERATION MODULE OVERVIEW This module will tell you how to install and verify the basic operation of the QX-I0. PREREQUISITE Completion of the COURSE OVERVIEW MODULE OBJECTIVE At the end of this module, you will be able to answer three questions about how to connect the QX-I0 system together and check the basic operation.
MODULE 2, INSTALLATION & OPERATION Like most other microcomputers, The QX-IO requires interconnecting power cords among the keyboard, monitor, disk drive, and AC power source. Three cords are required and they are not interchangeable among the QX-IO units. Therefore, you can not connect the QX-IO units together incorrectly. The monitor cord is the shortest of the three cords and has a slightly different plug at each end. The plugs differ only in the number of pins.
MODULE 2, INSTALLATION & OPERATION SELF-TEST #2 Answer the following questions on a separate sheet of paper. Do not write in this book. After you have answered the questions, check your answers with the feedback on the next page. 1. Can the QX-IO system be incorrectly connected together? 2. Is it neccessary to connect the QX-IO system together with a power source in order to verify basic operation? 3.
MODULE 2, INSTALLATION & OPERATION FEEDBACK ,2 This page contains the feedback for the questions at the end of MODULE 2. 1. NO, the QX-I0 system can not be incorrectly connected together. 2. YES, it is necessary to connect the QX-I0 system together with a power sourse in order to verify basic operation. 3. The letter D corresponds to the incorrect indication. Incidently,-checkout of the audible tone generator will be covered in MODULE 4.
MODULE 3, SERVICE DOCUMENTATION MODULE OVERVIEW This module will introduce you to the service documentation. PREREQUISITE Completion of the COURSE OVERVIEW. MODULE OBJECTIVE At the end of this module, you will be able to answer four questions about what is contained in the Troubleshooting Manual, Parts List, and the Computer Diagnostic Manual. You will also be able to write the names of the technical manuals that Epson has published for the QX-IO.
MODULE 3, SERVICE DOCUMENTATION Now we will look at what is contained in the Troubleshooting Manual. [] Open the cover and read "the Table of Contents. Then read the content pages of the five chapters in the Troubleshooting Manual. As you may have guessed by now, there is more information in this manual than you will need. No problem. Too much information is better than not enough information. However, you might expect to find adjustment information for the monitor in the manual and it is not there.
MODULE 3, SERVICE DOCUMENTATION SELF-TEST 13 Answer the following questions on a separate sheet of paper. Do not write in this book. After you have answered the questions, check your answers with the feedback on the next page. 1. Is general information, such as the weight of the system, available in the troubleshooting manual? 2. Where is information available about removing a disk drive? 3. Does the Price List contain more parts than there are Xerox part numbers? 4.
MODULE 3, SERVICE DOCUMENTATION FEEDBACK ,3 This page contains the feedback for the questions at the end of MODULE 3. 1. YES, general information is available, such as the weight of the system, in Chapter 1. 2. CHAPTER 2 contains information about removing a disk drive. 3. YES, there are more parts than Xerox part numbers In the Price List. 4. The following technical manuals have been published for the QX-I0.
MODULE 4, TROUBLESHOOTING MODULE OVERVIEW This module will tell you how to troubleshoot the QX-IO. PREREQUISITE Completion of MODULE 2 and 3. MODULE OBJECTIVE At the end of this module, you will be able to answer five questions, in writing, about what the visible and audible indications of basic operation indicate. You will also be able to answer four questions, in writing, about the flowcharts in the Troubleshooting Manual and the Diagnostic Program Manual and Diagnostic Disk.
MODULE 4, TROUBLESHOOTING Troubleshooting will be discussed in the three submodules listed below. This was done to present the information in a more organized manner for your study purposes. However, the information in the submodules is interrelated and how it interrelates will become obvious as you proceed through them. SUBMODULE 1: Contains information about basic operation indications. SUBMODULE 2: Contains information about the flowcharts in the Troubleshooting Manual.
MODULE 4, TROUBLESHOOTING SUBMODULE 1 (continued) Here is an example of how you can get a clue about a possible problem in the QX-IO by knowing what the basic operation indicators mean. As you have read, when the power-on LED on the disk drive glows after switching on the system, it means that the power supply is providing voltage. At the same time, the cooling fan should operate, also indicating the power supply is providing voltage.
MODULE 4, TROUBLESHOOTING SUBMODULE 2 (continued) [ ] Read the first box under drop-in 3.1 on page 5-4 in the Troubleshooting Manual. The action to perform, if you were repairing a system, would introduce the next submodule. SUBMODULE 3 Another diagnostic tool for the QX-IO is the Diagnostic Disk contained in the Diagnostic Programs Manual. As you have just read in the flowchart, you will be instructed when to use the Diagnostic Disk.
MODULE 4, TROUBLESHOOTING SUBMODULE 4 As mentioned in Module 3, there is no adjustment information for the monitor in the Troubleshooting Manual. However, adjustment pots are in the monitor and you may apply your skills learned in the generic training program to use them. The Troubleshooting Manual contains adjustment information for the disk drives, but you are not required to use it. If you feel you can repair the unit using the tools you have, then do so.
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MODULE 4, TROUBLESHOOTING SELF-TEST 14 Answer the following questions on a separate sheet of paper. Do not write in this book. After you have answered the questions, check your answers with the feedback on the next page. 1. What do each of the following visible and audible indications mean? A. Power-on LED glows: B. Cooling fan operates: C. Keyboard keys with indicators blink: D. Left disk drive LED glows brightly and right disk drive LED glows dimly: E. "INSERT DISKETTE" appears on CRT: 2.
MODULE 4, TROUBLESHOOTING FEEDBACK ,4 This page contains the feedback for the questions at the end of MODULE 3. 1. A. Power supply is producing voltage. B. Power supply is producing voltage. C. Keyboard has voltage and self-test has been performed. D. Voltage has reached the disk drives. E. Voltage has reached the monitor and the monitor is producing high voltage. The CRTC on the video circuitboard in the disk drive is functioning. 2. No, I would go to the Check-out Procedure. 3.
