Spectron SE1450 Operating instructions

SE1450 DASH Stroke Generator
Operating and Maintenance Manual Page 1 of 25
SPECTRON
SE1450 DASH
STROKE GENERATOR
OPERATING AND MAINTENANCE MANUAL
(Version - 073004)
Spectron Engineering, Inc.
Denver, Colorado
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Caution
Ensure that all cables are properly
attached and secured before turning on
power.
Do not remove the covers on the
SE1450 DASH Stroke Generator except
for Power Supply removal/replacement
as described within. Removal of these
covers will necessitate factory
recalibration and may cause damage.
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Table of Contents
Chapter One - Overview
SE1450 DASH Stroke Generator .............................................................. 5
Chapter Two - Initial Setup and Connections
Typical System Components and Cables .................................................. 7
Setup Procedures ....................................................................................... 8
Communication and Data connections.................................................. 8
Power connection .................................................................................. 9
RS232 Connection and Protocol ................................................................. 9
Chapter Three - Operations
Preliminary Check - Before Power Up ....................................................... 11
Initial Power Up ........................................................................................ 12
Built In Test (BIT)............................................................................ 12
Warm Up Recommendation............................................................. 12
On-Site Alignment and Calibration .......................................................... 12
Automatic Operations ................................................................................ 12
Manual Operations ..................................................................................... 13
RS232 Communications ................................................................. 13
IEEE488 Communications .............................................................. 14
General Command Format Notes ............................................................. 14
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Chapter Four - Maintenance and Repair
Maintenance................................................................................................ 16
Repair .......................................................................................................... 16
Removal and Replacement of the Power Supply ..................................... 16
Troubleshooting .......................................................................................... 17
Replaceable Modules .................................................................................. 17
Factory Contact........................................................................................... 17
Appendix A – Specifications
Appendix B – BIT Logic and Troubleshooting
Appendix C – NIST Traceability of the SE1420 DASH and SE1450 DASH
Appendix D – SE1450 DASH – J5 Pinout Definition
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Chapter One
OVERVIEW
SE1450 DASH
STROKE GENERATOR
Spectron Engineering’s high-performance SE1450 DASH Stroke Generator (SE1450 DASH) has been
designed to display very accurate cursive images on a Head Up Display (HUD). This is a vital
prerequisite to accurately and objectively measuring HUD image performance parameters.
SE1450 DASH Stroke Generator Front View
The SE1450 DASH is designed to generate a linear ramp at the both slow and fast HUD specified
writing speeds. The linearity of the ramp defines the brightness uniformity along the length of the
stroke line. A HUD specified failed writing speed can also be generated and used to test the phosphor
protect circuitry of the HUD.
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The SE1450 DASH is also designed to very accurately position stroke written lines on the HUD.
Horizontal lines are positioned vertically, and vertical lines are positioned horizontally, to a 16 bit
accuracy. This 16 bit accuracy is actively calibrated through appropriate use of the ADJust Command
(see, Manual, Spectron Control Language Commands, SE1450 Stroke Generator) to compensate for
the loading of each individual HUD and its associated interconnections. The accuracy of the SE1450
DASH is NIST traceable
The SE1450 DASH can be programmed to combine a series of user defined lines. There are horizontal
and vertical lines available in three line lengths as well as preprogrammed patterns for a crosshair and
a raster patch. The crosshair is a single control language command that combines a vertical and
horizontal line intersecting on a user defined center position. The raster patch is also a single
command language call. It combines 33 horizontal lines or 33 vertical lines with a user defined center
position and center-to-center line spacing. The raster patch is a convenient image for Resolution,
Contrast and Modulation Factor testing. The lines, crosshairs and raster patches can be combined to
form more complex test patterns.
The SE1450 DASH has an extensive Built-In-Test (BIT), is able to communicate both RS232 and
IEEE488 and is capable of diagnosing Input functionality of the necessary HUD generated signals (DU
Busy and Symbol Command) as well as the other HUD required signals (modified RS170 and Symbol
Mode).
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Chapter Two
INITIAL SETUP and CONNECTIONS
SE1450 DASH
STROKE GENERATOR
The SE1450 DASH is composed of one module and associated cabling. In addition to the
cables, the only field replaceable part of the SE1450 DASH is the Power Supply as
described below in Chapter 4, Maintenance and Repair.
Typically, the SE1450 DASH is operated in association with an automated display
measurement system such as the Spectron SE1420 DASH Display Measurement System
to objectively measure and characterize the performance parameters of the resultant
HUD image. It is this configuration and operation that will be described in this manual,
however, with proper input and cabling, the SE1450 DASH could operate independently
of the measuring system.
Typical System Components and Cables
Table 2-1
Main Module and Replaceable Part Part Number
DASH Stroke Generator
Power Supply
SE1450
SE3022-01D
Associated Cables Part Number
HUD/Test Station Connect cable
External Sync Cable
Standard IEEE488 Cable
Standard RS232 Standard Cable
120 VAC Power Cord
Customer Supplied
OMS-3430
Customer Supplied
Customer Supplied
WAC4
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Setup Procedures
Carefully remove the SE1450 DASH and associated cabling from their shipping cartons
and begin the setup procedures described below. Locate the SE1450 DASH in a secure
location near the Controlling Computer, the SE1420 DASH Display Measurement
System (if used), and the HUD.
Typical SE1450 DASH Stroke Generator Rear View
Communication and Data Connections
1. Determine that the power switch/circuit breaker on the back of the
SE1450 DASH is OFF (See Power Connection, directly below).
2. Connect the HUD/Test Station Connect Cable from Connector J5 on the
back of the SE1450 DASH to the appropriate Connectors on the Test
Station and HUD.
3. Connect the External Sync Cable from Connector J2 on the back of the
SE1450 DASH to the External Sync In on the Display Measurement
System (Normally Connector J2 on the back panel of the SE1420 DASH
Display Measurement System Controller.)
4. Connect the RS232 Cable and/or the IEEE488 Cable for communication
from Connector J4 and/or the IEEE488 Connector respectively on the
back panel of the SE1450 DASH and to the appropriate port(s) on the
Controlling Computer.
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Power Connection
Power Section - SE1450 DASH Stroke Generator Back Panel
1. Determine that the power switch/circuit breaker on the back of the
SE1450 DASH is in the OFF (down) position and that the 115/230 VAC
selector switch is in the correct position for the power source to be used.
2. Connect the 120 VAC Power cord to the back of the SE1450 DASH,
Connector J6, and plug into the power outlet.
3. The system is powered up by turning on the power switch/circuit breaker
on the back of the Controller and operated according to the procedures in
Chapter 3, Operations of this manual.
RS232 Connection and Protocol
User supplied and initiated RS232 Communications with the SE1450 DASH system are
described in Chapter 3, Operations. The following information is supplied as an aid in
initiating proper communications through the RS232 port.
The RS232 connector is a DB9 male connector located on the SE1450 DASH Back Panel
(J4). Only five of the nine pins are used in accordance with the pin out specifications in
table 2-1, below.
Table 2-1
1450 DASH Connection Terminal Connection
Pin 2 RD Receive Data TRANSMIT
Pin 3 TD Transmit Data RECEIVE
Pin 5 GND Ground GROUND
Pin 7 RTS Request to Send CLEAR TO SEND
Pin 8 CTS Clear to Send REQUEST TO SEND
Complete instructions for using the RS232 port are contained in Chapter 3, Operations.
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The RS232 protocol follows an IBM 9-pin “DTE” standard, which is an ASCII system.
The serial protocol for this system is:
•1 start bit
•1 stop bit
•8 data bits
•9600 baud
•Hardware Flow Control
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