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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. AB
(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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Related Manuals for ACR Electronics 2204
Summary of Contents for ACR Electronics 2204
- 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. AB (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...
- Page 2 DESCRIPTION DATE APVD. Format changes, add ACR/EM-1D content. 9/8/98 T. Martin Update parts list to reflect design changes. 5/0/99 T. Martin Update and make corrections to parts list. 7/13/99 T. Martin Update to assign 4-digit product codes to parts list.
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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
SW ITCH PLUG PIN FIGURE 1 BLOCK DIAGRAM ACR/EM-1A, ACR/EM-1D PORTABLE SAFETY MEGAPHONE SECTION 3 – MAINTENANCE 3.1 Cleaning External surfaces of the megaphone may be cleaned with a soft cloth, dampened in a solution of mild household detergent. Do not immerse in water or use strong solvents. Clean electrical contacts with a cloth dampened with isopropyl alcohol. -
Page 6: Repair
. Remove battery cells (3) from the three tubes by tilting megaphone to allow cells to drop out into the hand. 3. Unplug alarm plug pin (5) from side of housing. (ACR/EM-1A only) 4. Remove volume control knob (4) (pulls off). -
Page 7: Assembly
5. Replace volume control knob (4) on volume control shaft. . Plug the alarm plug (5) attached to lanyard into jack in the side of the case near volume control. (ACR/EM-1A only) 7. Replace the six batteries (3) in three tubes at microphone end of megaphone case. -
Page 8: Section 7 - 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” column. - 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
This product is warranted against factory defects in material and workmanship for a period of 1 (one) year* from date of purchase or receipt as a gift. During the warranty period ACR Electronics, Inc. will repair or, at its option, replace the unit at no cost to you for labor, materials and return transportation from ACR.