Nautel VS300 Troubleshooting Manual

Also see for VS300: Quick start guide Installation manual Operation and maintenance manual Preinstallation manual Troubleshooting manual

Nautel VS300 Troubleshooting Manual Manual pdf 84 page image

VS300 Troubleshooting Manual Reading Electrical SchematicsPage 5-4 Issue 10.0 2019-01-18Locating a part or assembly on a schematicThe full reference designation assigned to a part or assembly is the key to physically locatingthat part or assembly.1. Refer to the family trees in Section 3, “Parts Lists” on page 3-1.2. Follow the family tree branches to the block that contains the desired referencedesignation, while noting the Nautel nomenclatures and names of all higher assembliesin the path, as applicable. Example: A5 NAPA23/03A PA PWB.3. Refer to Table 6.1 in Section 6, “Mechanical Drawings” on page 6-1. Use the Nautelnomenclature and name of each family tree block in the path, starting at the highestassembly – this is normally Figure MD-1 – to determine the figure number(s) for thatassembly.Example: NAPA23/03A Interface PWB is shown on MD-6.4. Refer to the referenced figure (e.g., MD-6) in Table 6.1 on page 6-2 to locate the desiredpart or assembly.Note: Full reference designations contain the assembly hierarchical coding. When theend item is divided into units (cabinets), the first coding is a unit number (1, 2, 3,etc.). When the end item is divided into assemblies, the first coding is an assemblynumber (A1, A2, A3, etc.). If a unit or an assembly is divided into sub-assemblies,assembly coding that identifies assembly relationship (1A1, A2A1, A2A1A1, etc.) isadded.Note: The drawings in the Mechanical Drawings section depict the assembly detailof the transmitter and its modules and assemblies.Table 5.1: List of Electrical SchematicsFigure # TitleSD-1 VS300 Transmitter - Ac-Dc and Exciter/Control StagesSD-2 VS300 Transmitter - RF Drive and RF Power StagesSD-3 NAPS40 PS Distribution PWBSD-4 NAPA27A Pre-Amp PA PWBSD-5 NAPA23/03A PA PWB