Testing And Fault Isolation - Honeywell RESCU 406AFN Component Maintenance Manual With Illustrated Parts List

Emergency locator transmitter

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Table of Contents

General

A. This section supplies functional test and troubleshooting procedures for RESCU 406AFN

Emergency Locator Transmitter ELT.

NOTE: Transmitter Unit P/N 1152682-2 is backward compatible to Transmitter Unit P/N 1152682-1,

and can be used with an AIM P/N 1152780-1.

B. Refer to REPAIR (page 601) for repair procedures. Data for special tools and test equipment are

included in Table 101 and in SPECIAL TOOLS, FIXTURES AND EQUIPMENT (page 901). An

illustrated parts list is included in the ILLUSTRATED PARTS LIST (page 1001).

C. Connector pin-outs for RESCU 406AFN are given in Tables 102 to 105.

D. Fault isolation flowcharts for RESCU 406AFN are given in Figures 103 to 105.

Nomenclature

406 MHz Digital Message Decoder BT100S/A/D

12/28 V dc Power Supply

Beacon Test Set

Portable Test Set

Spectrum Analyzer

Test System

Coaxial from TU to BT100AVS

Cable

12/28 V dc Power Supply Cables

Installed System Test

The installed system tests are used to perform tests of the basic functions of the ELT system. These

tests do not give specified levels of performance for one or more of the functions of the ELT but they

do show that the system operates satisfactorily. If the results are unsatisfactory for a unit during one of

these tests, refer to the fault isolation flowcharts (Figures 103 to 105) to isolate the problem.

A. Self-test #1 (Started from Transmitter Unit)

NOTE: Consult with the responsible ATC/CAA/SAR for permission prior to performing self-test.

(1)

If the optional remote panel is installed, set the switch on the remote panel to ARMED.

COMPONENT MAINTENANCE MANUAL

1152682