Summary of Contents for VAL AWOS 2000
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Page 1: Maintenance And Repair
Tuneup Procedure information is found on pages 8-11 VAL AVIONICS LTD AWOS 2000 VHF Transmitter Maintenance and Repair Manual Revision 1 April 2012 P/N 172211... -
Page 2: Table Of Contents
VAL AVIONICS LTD VAL AVIONICS LTD VAL AVIONICS LTD AWOS 2000 AWOS 2000 AWOS 2000 AWOS 2000 – – – – VHF TRANSMITTER VHF TRANSMITTER VHF TRANSMITTER VHF TRANSMITTER MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL... -
Page 3: Introduction
Val Avionics LTD. does not authorize the repair of AWOS 2000 circuit boards. All circuit boards and assemblies from the AWOS 2000 can be economically replaced if necessary. The following modules and printed circuit board assemblies are available for... -
Page 4: Main Board Assembly
VAL AVIONICS LTD VAL AVIONICS LTD VAL AVIONICS LTD AWOS 2000 AWOS 2000 AWOS 2000 AWOS 2000 – – – – VHF TRANSMITTER VHF TRANSMITTER VHF TRANSMITTER VHF TRANSMITTER MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL 1.2.1 Main Board... -
Page 5: Power Supply Circuits
VAL AVIONICS LTD VAL AVIONICS LTD VAL AVIONICS LTD AWOS 2000 AWOS 2000 AWOS 2000 AWOS 2000 – – – – VHF TRANSMITTER VHF TRANSMITTER VHF TRANSMITTER VHF TRANSMITTER MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL... -
Page 6: Rf Tx Generator
VAL AVIONICS LTD VAL AVIONICS LTD VAL AVIONICS LTD AWOS 2000 AWOS 2000 AWOS 2000 AWOS 2000 – – – – VHF TRANSMITTER VHF TRANSMITTER VHF TRANSMITTER VHF TRANSMITTER MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL 1.2.1.4... -
Page 7: Transmitter Board
VAL AVIONICS LTD VAL AVIONICS LTD VAL AVIONICS LTD AWOS 2000 AWOS 2000 AWOS 2000 AWOS 2000 – – – – VHF TRANSMITTER VHF TRANSMITTER VHF TRANSMITTER VHF TRANSMITTER MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL 1.2.2 Transmitter Board... -
Page 8: Troubleshooting
• Digital multimeter • 20MHz oscilloscope Initial Troubleshooting Operations The first step in troubleshooting the AWOS 2000 is to remove the cover assembly (see Section 3.1) and verify the unit as being properly powered. Power Supply Check 1. Check the DC voltage between U119 pin 3 and ground. The voltage should be between 4.5 and 5.5V. -
Page 9: Disassembly Instructions
MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL Disassembly Instructions To avoid damaging the AWOS 2000’s circuit boards and assemblies the following procedures should be carefully followed. Assembly drawings are included in Section 5 for reference. Removal of the Covers 1. -
Page 10: Reassembling The Unit
Service and Testing Initial Alignment / Return to Service After completing all necessary maintenance and/or service, the following test procedure is provided to ensure that all AWOS 2000 functions are operating properly. 4.1.1 Test Equipment Required • A 0 to 30V DC/ 5 amp power supply •... - Page 11 • Adjust R423 (Mod %) to 30% with the supplied audio. • Verify that there are no spurs across the band using a spectrum analyzer. • When reinstalling at a site, please follow the AWOS 2000 Owners / Operators Manual for final calibration instructions.
- Page 12 VAL AVIONICS LTD VAL AVIONICS LTD VAL AVIONICS LTD AWOS 2000 AWOS 2000 AWOS 2000 AWOS 2000 – – – – VHF TRANSMITTER VHF TRANSMITTER VHF TRANSMITTER VHF TRANSMITTER MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL...
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Page 13: Appendix
MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL MAINTENCE AND REPAIR MANUAL Appendix Table of Parts The AWOS 2000 contains no field serviceable parts. Please contact Val Avionics for repair. Specifications Physical Dimensions: Width: 5.9 inches Height: 2.3 inches Length: 7.45 inches...
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