Nautel VS2.5 Troubleshooting Manual

Also see for VS2.5: Installation manual Installation manual Troubleshooting manual

Contents

VS2.5 Troubleshooting Manual Reading Electrical SchematicsIssue 4.0 2012-12-01 Page 5-1Section 5: Reading Electrical SchematicsThis section contains electrical schematics and logic diagrams for the transmitter. Block diagrams,simplified electrical schematics, and logic diagrams may be included. Refer to Table 5.1 on page 5-4for an itemized listing.Component valuesUnless otherwise specified on the logic or schematic diagram, the following defaults apply:• Resistor values are shown in ohms (K = 1,000 and M = 1,000,000)• Resistor power ratings are not shown when less than 0.5 W• Capacitor values are shown in microfarads (uF)• Unidentified diodes are part number 1N4938 (Nautel Part # QAP29)Graphic symbolsThe graphic symbols used on electrical schematics are in accordance with American National StandardANSI Y32.2-1975 - Graphic Symbols for Electrical and Electronic Diagrams.Logic symbolsThe logic symbols used on electrical schematics and logic diagrams are in accordance with AmericanNational Standard ANSI Y32.14-1975 - Graphic Symbols for Logic Diagrams.Reference designationsReferenced designations were assigned in accordance with American National Standard ANSIY32.16-1975 - Reference Designations for Electrical and Electronic Parts and Equipment.Each electrical symbol is identified with its basic reference designation. To obtain the full referencedesignation for a specific part, prefix this basic identifier with the reference designation assigned to allhigher assemblies. For example, the complete designation for a resistor (R1) on a printed wiring board(A1), that is part of a larger board (A2), would be A2A1R1.