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Product Support Manual
ACR/EM-1A, ACR/EM-1D™
Portable Safety Megaphone
FAA PMA Approved under A3-06-1402-
Product No. 2204, 2208
Y1-03-0014 Rev. Y
(25-60-01)
The technical data in this document (or file) is controlled for export under the Export
Administration Regulations (EAR), 15 CFR Parts 730-774, ECCN: EAR99. Violations of these
laws may be subject to fines and penalties under the Export Administration Act.
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Table of Contents
Related Manuals for ACR Electronics ACR-EM-1A - REV Y
Summary of Contents for ACR Electronics ACR-EM-1A - REV Y
- Page 1 Product Support Manual ACR/EM-1A, ACR/EM-1D™ Portable Safety Megaphone FAA PMA Approved under A3-06-1402- Product No. 2204, 2208 Y1-03-0014 Rev. Y (25-60-01) The technical data in this document (or file) is controlled for export under the Export Administration Regulations (EAR), 15 CFR Parts 730-774, ECCN: EAR99. Violations of these laws may be subject to fines and penalties under the Export Administration Act.
- Page 2 T. Martin IF YOU HAVE ANY TROUBLE WITH YOUR NEW MEGAPHONE, DO NOT RETURN IT TO THE STORE! CALL ACR ELECTRONICS AT +1 (800) 432-0227. WE WILL HELP YOU RESOLVE ANY PROBLEMS YOU MAY BE EXPERIENCING. MANY QUESTIONS CAN BE ANSWERED OVER THE PHONE.
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Page 3: Table Of Contents
TABLE OF CONTENTS SECTION 1 – DESCRIPTION 1.1 Options Matrix SECTION 2 – OPERATION 2.1 Battery Monitor SECTION 3 – MAINTENANCE 3.1 Cleaning 3.2 Battery Replacement SECTION 4 – TESTING, TROUBLESHOOTING & REPAIR 4.1 Testing 4.2 Repair SECTION 5 – DISASSEMBLY & ASSEMBLY 5.1 Disassembly 5.2 Assembly SECTION 6 –... -
Page 4: Section 1 - Description
SECTION 1 – DESCRIPTION The ACR/EM-1A or ACR/EM-1D is a battery operated solid state megaphone specifically developed for use in enclosed areas such as in the interior of an aircraft or ship cabin. It has been designed to minimize regenerative acoustic feedback that results in whistling and other oscillations of this nature. -
Page 5: Section 3 - Maintenance
VISU AL BATTER Y C H EC K SPEAKER VO LU M E ASSEM BLY C O N TR O L AU D IO AM PLIFIER SIR EN C IR CU IT & M ICR O PH O N E BATTERY M O N ITO R ASSEMBLY M EG APH O N E... -
Page 6: Repair
. Remove the pin that activates the siren. If the alarm is of normal amplitude and sound character, the amplifier and siren circuitry are functioning properly. If the amplification is low, check the batteries and then the amplifier. If the sound character is abnormal, check the batteries and then the siren circuitry. -
Page 7: Assembly
Inspect unit for any evidence of damaged parts, loose mountings or broken leads, and dirty electrical contacts. 5.2 Assembly 1. Attach Horn (17) and Speaker Assembly () to Megaphone Subassembly (9). Ensure alignment with location pins. Pass speaker wires through the provided slot. 2. -
Page 8: Section 7 - Parts List
SECTION 7 - PARTS LIST FIGURE 2 ACR/ EM-1A, ACR/EM-1D PORTABLE SAFETY MEGAPHONE ILLUSTRATED PARTS LIST Replaceable parts are illustrated in Figure (shown above) and listed in the table (shown on page 9). Part numbers shown in the “Part Number” column may be ordered from ACR unless another manufacturer’s name is given in parentheses in the “Description”... - Page 9 ITEM NOMENCLATURE ORDER SPARE PARTS ACR/EM-1A ACR/EM-1A ACR/EM-1D S/N < 9000 S/N ≥ 9000 ALL S/N Microphone & Mouthpiece Assy 911 911 911 Socket Setscrew Kit 941 941 941 Battery AA Alkaline Commercial Commercial Commercial Knob, control 90 90.1 90.1 Plug pin, Alarm Included in 911 &...
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Page 10: Appendix - Warranty, Useful Life, Notices
Product Support Manual, please visit the ACR website at www.acrelectronics.com. ©009 by ACR Electronics, Inc., part of Cobham plc. All rights reserved. Reproduction in whole or in part is permitted only with permission of ACR Electronics, Inc.