CHAPTER 1 INTRODUCTION

TM 55-4920-413-13&P CHAPTER 1 INTRODUCTION Section I. GENERAL 1-1. Scope This manual describe Line Test Set/Vertical Instrument Display System (VIDS) (Figure 1-1 and provides instructions for operation, aviation unit and intermediate maintenance. It includes instruction for operation and replacement of parts available to the operator, aviation unit and intermediate repairmen. The aviation unit and intermediate maintenance repair parts and special tools list is in Appendix C. 1-2. Maintenance Forms, Records, and Reports. Department of the Army forms and procedures used for equipment maintenance are those prescribed by DA PAM 738-751. 1-3. Destruction of Army Materiel to Prevent Enemy Use. Refer to TM 750-244-2, Procedures for Destruction of Electronic Materiel to Prevent Enemy Use. 1-4. Preparation for Storage or Shipment. For administrative storage, refer to TM 55-1500-204- 25/1, and Chapter 4. 1-5. Quality Assurance/Quality Control (QA/AC). Refer to FM 55-411 for information about quality assurance and quality control. 1-6. Equipment Improvement Recommendations (EIR). EIR can and must be sumitted by anyone who is aware of an unsatisfactory condition with the equipment design or use. It is not necessary to show a new design or list a better way to do a procedure; just simply tell why the design is unfavorable of why a procedure is difficult. EIR may be submitted on SF 368 (Quality Deficiency Report). Mail directly to Commander, US Army Aviation and Troop Command, ATTN: AMSAT-I-MDO 4300 Goodfellow Blvd., St. Louis, MO 63120-1798. A reply will be furnished to you. Section II. EQUIPMENT DESCRIPTION AND DATA 1-7. Purpose and Use. Line Test Set/vertical Instrument Display\System (VIDS) provides the necessary power, inputs, controls and displays to operate and test the Vertical Instrument Display System. The control, mounted on the Line Test Set, allow the operator to select simulated signals and specific test conditions required for maintenance of the test set. 1-8. Description. a. The Line Test Set, Vertical Instrument Display System is a box-shaped unit having a front panel on which are mounted controls, indicators, connectors, and fuses a cover attached to the rear of the test set has a slot opening for storage of test and power cables. It is housed in a fiber glass, rectangular light weight case. The case consists of top and bottom sections hinged together so that the two sections may be separated. The bottom section has two rectangular bars to store the power and test cables. 1-9. Equipment Data. Refer to Table 1-1 for equipment data. Table 1-1, Equipment Data AC voltage input 115 vac, single-phase, 400 Hz DC voltage input 28 ± 0.5 vdc outputs All necessary ac and dc power and control voltages and simulated signals for the parameter to be tested. Dimensions Length 39 cm (15.38 inches) Width 37.8cm (14.88 inches) Height 24.8cm (9.76 inches) Weight 11.7 kg (26lbs) Change 2 1-1/(1-2 blank)