Table of Contents
Troubleshooting
Summary of Contents for Spectron SE1450
- Page 1 SE1450 DASH Stroke Generator Page 1 of 25 Operating and Maintenance Manual SPECTRON SE1450 DASH STROKE GENERATOR OPERATING AND MAINTENANCE MANUAL (Version - 073004) Spectron Engineering, Inc. Denver, Colorado 073004...
- Page 2 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.
-
Page 3: Table Of Contents
Page 3 of 25 Operating and Maintenance Manual Table of Contents Chapter One - Overview SE1450 DASH Stroke Generator .............. Chapter Two - Initial Setup and Connections Typical System Components and Cables ..........Setup Procedures ..................Communication and Data connections.......... - Page 4 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 073004...
-
Page 5: Chapter One - Overview
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. - Page 6 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.
-
Page 7: Typical System Components And Cables
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. -
Page 8: Setup Procedures
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. -
Page 9: Power Connection
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. - Page 10 SE1450 DASH Stroke Generator Page 10 of 25 Operating and Maintenance Manual The RS232 protocol follows an IBM 9-pin “DTE” standard, which is an ASCII system. The serial protocol for this system is: • start bit • stop bit •...
-
Page 11: Chapter Three - Operations
OPERATIONS SE1450 DASH STROKE GENERATOR The SE1450 DASH is operated by issuing Spectron Control Language Commands (SCL), (see, Manual, Spectron Control Language Commands, SE1450 Stroke Generator), either through RS232 or IEEE488 communications from a Controlling Computer. The commands may be entered in, 1) automatic mode, with command and data information controlled by user or Spectron Engineering, Inc. -
Page 12: Initial Power Up
Language Commands, SE1450 Stroke Generator) via the IEEE488 bus or RS232 port. Automatic routines for generating a series of specific test patterns are not included with the SE1450 DASH, however, they may be created by the user of the system or separately contracted from Spectron on an optional basis. -
Page 13: Manual Operations
To perform manual operations, connect a controlling computer to the RS232 port on the SE1450 DASH. Alternatively, a properly configured computer can communicate with the SE1450 DASH through the IEEE488 bus connection. Use of the IEEE488 bus will effectively override and disable the RS232 port. This section will describe the necessary communications relationship between the controlling computer and the SE1450 DASH for successful operation of the system. -
Page 14: Ieee488 Communications
GPIB interface being used, however, VALID Spectron Control Language commands as described in Manual, Spectron Control Language Commands, SE1450 Stroke Generator, must be sent as string data to the SE1450 DASH by the GPIB interface software. Under GPIB control, the SCL Command MUST NOT be preceded by a colon (:). - Page 15 SE1450 DASH Stroke Generator Page 15 of 25 Operating and Maintenance Manual 4. Multiple Commands MAY NOT be Entered on the Same Line, However, Multiple Pattern Generating Commands may be Created, Viewed, Edited, Saved, and Recalled Through Appropriate use of the ADD, READ, EDIT, SAVE, and LOAD Commands and with a Working Understanding of how the Current Work Area, Described Directly Below, Functions.
-
Page 16: Maintenance
BIT. Repair No repair of the SE1450 DASH system is permitted by the user of the system other than the removal and replacement of the Power Supply as described below. User initiated repairs will void the factory warranty and invalidate the factory calibration. In no event should the user attempt to remove factory installed covers and access the internal parts (other than to replace the Power Supply Module). -
Page 17: Troubleshooting
Connections, Typical System Components and Cables). Factory Contact If the user of the SE1450 DASH encounters problems that cannot be solved by the above procedures, or if any other problems exist, contact Spectron Engineering, Inc. as follows: Spectron Engineering, Inc. -
Page 18: Appendix A - Specifications
Page 18 of 25 Operating and Maintenance Manual APPENDIX A SPECIFICATIONS SE1450 Stroke Generator for T-50 HUD For Definition, Specification and System Interaction of the Stroke Generation Requirements, refer to the following BAE SYSTEMS, AVIONIC SYSTEMS Document: INTERFACE CONTROL DOCUMENT (ICD) - Page 19 Appendix C, NIST Traceability of the SE1420 DASH and SE1450 DASH. A Synchronization Pulse (stripped from the Test Station supplied RS170 video) is available as an output from the SE1450 Stroke Generator Sync Connector. This TTL pulse supplies the HUD External Sync to the SE1420 DASH Display Measurement System.
-
Page 20: Appendix B - Bit Logic And Troubleshooting
SE1450 DASH Stroke Generator Page 20 of 25 Operating and Maintenance Manual APPENDIX B BIT Logic and Troubleshooting 1. No Answer - using IEEE 488 (GPIB) or RS232 communication. A. Physically go to the back panel of the Display Measurement Controller. Check for the proper connection of the GPIB (IEEE488) and/or the RS232 Cables at both ends. - Page 21 SE1450 DASH Stroke Generator Page 21 of 25 Operating and Maintenance Manual collimators and camera are clean. Insure that any ambient light is blocked from the camera and that the shroud is properly employed. Then rerun the ALIGN procedure. If the failure report is number 52, the Camera Module should be repaired/replaced.
-
Page 22: Appendix C - Nist Traceability Of The Se1420 Dash And Se1450 Dash
NIST Traceable instrument In regards to the definition of signals on pins 18 29 on Spectron Drawing Number 3382-001 "P2/J1 of Cable W4, ITA to HUD Test Bench", Appendix D, SE1450 DASH – J5 Pinout Definition, this Manual: VOLTAGE REFERENCES Pin Nos. - Page 23 SE1450 DASH Stroke Generator Page 23 of 25 Operating and Maintenance Manual Definition (pins 22,23 and 28,29) - These twisted pairs will output a square wave with a frequency of 75 Hertz ± 0.02%. The positive plateau is +3 to +5 volts and the negative plateau is -0.5 to +0.5 volts, both ranges including ripple.
-
Page 24: Appendix D - Se1450 Dash - J5 Pinout Definition
SE1450 DASH Stroke Generator Page 24 of 25 Operating and Maintenance Manual APPENDIX D SE1450 DASH - J5 Pinout Definition 073004... - Page 25 SE1450 DASH Stroke Generator Page 25 of 25 Operating and Maintenance Manual 073004...
Need help?
Do you have a question about the SE1450 and is the answer not in the manual?
Questions and answers