User manual ACR ELECTRONICS ACR-EM-1A REV Y

[. . . ] WE WILL HELP YOU RESOLVE ANY PROBLEMS YOU MAY BE EXPERIENCING. MANY QUESTIONS CAN BE ANSWERED OVER THE PHONE. Y1-03-0014 Rev. Y TABLE OF CONTENTS SECTION 1 ­ DESCRIPTION 1. 1 Options Matrix 4 4 SECTION 2 ­ OPERATION 2. 1 Battery Monitor 4 4 SECTION 3 ­ MAINTENANCE 3. 1 Cleaning 3. 2 Battery Replacement 5 5 5 SECTION 4 ­ TESTING, TROUBLESHOOTING & REPAIR 4. 1 Testing 4. 2 Repair 5 5 6 SECTION 5 ­ DISASSEMBLY & ASSEMBLY 5. 1 Disassembly 5. 2 Assembly 6 6 7 SECTION 6 ­ TECHNICAL DATA SECTION 7 - PARTS LIST APPENDIX - WARRANTY, USEFUL LIFE, NOTICES 1. Notices 7 8 10 10 10 10 3 Y1-03-0014 Rev. [. . . ] The six cells, contained in three tubes with two cells per tube, are immediately accessible and will drop out when the megaphone is tilted. New batteries may be dropped into the tubes, observing polarity marking adjacent to each tube. Replace microphone and mouthpiece assembly (1). Align keyway and secure with the three set screws (). CAUTION: Observe polarity of cells carefully before replacement. 3. 2 Battery Replacement SECTION 4 ­ TESTING, TROUBLESHOOTING & REPAIR 4. 1 Testing Note: The megaphone consists of three major assemblies; the microphone and mouthpiece assembly, the megaphone sub-assembly, and the horn and speaker assembly. To locate a defect, follow the procedure outlined below: 1. If a clicking sound is heard, the speaker is operating. 5 Y1-03-0014 Rev. 5. 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. (ACR/EM-1A only) If no sound is heard, remove the microphone and mouthpiece assembly and the batteries. Check that both the microphone and battery contacts are clean. If not, clean with a mild, non-abrasive cleaner such as alcohol. Test amplifier and speaker assembly by replacing the microphone with a spare microphone assembly. If no sound can be produced after microphone replacement, it may be assumed that the amplifier or speaker assembly is defective. To test the speaker, disassemble the speaker. Unplug the wires and apply 1 ½ volts intermittently across the speaker. If no clicks are heard, the speaker is defective. Possible faults and corrections are summarized below for ready reference. TROUBLE POSSIBLE CAUSE CORRECTION No sound from speaker Exhausted batteries, defective Replace defective component when handle is squeezed microphone, speaker or (Step 1) amplifier assembly No siren when alarm Exhausted batteries, defective Replace defective component pin is pulled (Step ) siren circuitry or defective (ACR/EM-1A only) amplifier Sound is abnormally low or Exhausted batteries or wrong Check proper insertion of distorted polarity of battery series batteries or replace batteries. Speaker does not respond to Defective speaker Step 5 Replace speaker 4. 2 Repair The megaphone consists of three major sub-assemblies; the microphone and mouthpiece assembly, the megaphone sub-assembly, and the horn and speaker assembly. Repairs are restricted to the replacement of these defective sub-assemblies or the batteries and lanyard assemblies. SECTION 5 ­ DISASSEMBLY & ASSEMBLY 5. 1 Disassembly 1. [. . . ] In this case, replacement parts can be obtained directly from the original manufacturer. Standard parts (MS-, AN-, etc. ) and commercially available hardware (`Commercial') should be obtained from commercial sources. Y1-03-0014 Rev. Y 8 ITEM QTY NOMENCLATURE ORDER SPARE PARTS ACR/EM-1A S/N < 9000 ACR/EM-1A ACR/EM-1D S/N 9000 ALL S/N 911 941 Commercial 90. 1 9418 N/A N/A 940 Commercial 943 933 914 A1-18-1149 911 A1-17-0809 911 941 Commercial 90. 1 N/A 9418 N/A N/A 94 Commercial 943 933 N/A A1-18-1151-1 N/A A1-17-0809 1 3 4 5 7 8 9 10 11 13 14 15 17 1 1 1 1 1 3 1 3 1 1 1 1 1 Microphone & Mouthpiece Assy Socket Setscrew Kit Battery AA Alkaline Knob, control Plug pin, Alarm Speaker Assembly Screw, Self tap (#4 x ¾) Wire leads speaker (#AWG) Megaphone Subassy Screw Machine (#4-40 x 3/8) Handle Kit Strap Assembly Kit Lanyard Assembly, Anti theft Housing Megaphone Lanyard Assembly, Siren Horn, Megaphone 911 941 Commercial 90 9417 (upgrade kit) Commercial Commercial 9417 (upgrade kit) Commercial 943 933 914 A1-18-1149 911 A1-17-0809 Included in 911 & 914 1 / 1 1 *S/N 9000 are date coded 4/99 + 9 Y1-03-0014 Rev. ACR cannot accept liability for manual contents. [. . . ]