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For other information, please refer to the following manuals: • Installation........Installation Manual • Servicing.........Service Manual Î FURUNO ELECTRIC CO., LTD. I NISHINOMIYA, JAPAN ©FURUNO ELECTRIC CO., LTD. 9-52,Ash i hara-cho, N i s h inom i ya,Japan 662 Telephone: 0798-65-2111 Telefax: 0798-65-4200 : All rights reserved. ; Printed in Japan FIRST EDITION с FEB 1994 APR. 22, 1997 PUB. No. OME—55490 (TENI) FS-1552 *000 8 059 0100* 00080590100 A SAFETY INSTRUCTIONS "DANGER", "WARNING" and "CAUTION" notices appear throughout this manual. It is the responsibility of the operator of the equipment to read, understand and follow these notices. If you have any questions regarding these safety instructions, please contact a FURUNO agent or dealer. A DANGER This notice indicates a potentially hazardous situation which, if not avoided, will result in death or serious injury. A WARNING This notice indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. A CAUTION This notice indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury, or property damage. A DANGER Awarning This equipment contains high voltages in the transceiver unit and the antenna couple unit. These voltages are sufficient to kill anyone coming in direct contact with them. Any internal adjustment, servicing and repair shall only be preformed by qualified servics personnel. A residual charge remains in capacitors and other devices serveral minutes after turning off the power. Wait at least 3 minutes to allow residual chege to disappear. Wear a safety belt and a hard hat when working high up on the mast or close to the radar antenna. Do not look into the radar antena at a close distance. Stop the radar while working with the radiotelephone antenna. HIGH TENSION HAZARD. DO NOT TRANSMIT WHEN ATU IS OPENED. EARTHING Secure grounding wires on Transceiver Unit, Antenna Coupler Unit, Power Unit. This serves to reduce the risk of electrical shocks in case the high tension parts are shorted to the metallic cabined or covers, as well as improving receiver sensitivity and transmitter efficiency. A CAUTION Restriction to use MF/HF Radiotelephone in U.S.A.: Ship stations authorized to use both 2.000-27,500 kHz and 156-162 MHz bands must not use frequemcies in the 2.000-27,500 kHz band within the VHF service range. (US CFR 47, §80.367f) Silence period Do not transmit any signal if you are not in an emergency situation during the silence peried, 00 to 03 min and 30 to 33 min of every hour. Introduction Foreword About this manual FURUNO Electric Company thanks you for selecting the FS-1552 SSB Radiotelephone. We are confident you will discover why FURUNO has become synonymous with quality and reliability. To get maximum performance from your unit, please carefully read and follow the recommended procedures for operation and maintenance. The FS-1552 is an all-purpose communications transceiver especially designed for marine mobile communication in the frequency range of 1.6 to 26.2 MHz. All ITU channels are preprogrammed. If required, TX/RX frequencies can be preprogrammed into a E2 PROM having a capacity of 200 frequency pairs. The FS-1552 consists of a Transceiver Unit, an Antenna Coupler, and a Handset. This manual mainly consists of two sections: PART 1 (Operation) and PART 2 (Maintenance). Contents of PART 1 1. Controls and Indications 2. Operational Overview 3. Operation with Optional Equipment 4. Changing the System Settings Contents of PART 2 1. Testing 2. Maintenance 3. Troubleshooting 4. Replacement of Fuses Specifications ITU SSB Frequency Table Refer to the “Table of Contents” at the beginning of each section for detailed information on section contents. Features Notes Notice to FURUNQ service agent or dealer: • Installation information is contained in the Installation Manual. • System initialization after installation is described in the Service Manual. • 2182 key provides for immediate selection of 2182 kHz (at FULL power automatically) • Scan/Sweep receiving function • PROM stores all ITU SSB and TELEX frequencies • Optional dummy load (in the Antenna Coupler) permits checking of transmitter • Effective noise blanker cancels pulse noise • Advanced “voice” detecting type squelch circuit filters out noise • Remote station (RB-500) optionally available • Self test 1. Use a battery having sufficient capacity (more than 120 AH). Otherwise, battery cannot provide ample transmission power. 2. Handle the microphone carefully. Heat, humidity and shock will affect performance. 3. Do not adjust the potentiometers inside the units. Improper adjustment may cause serious damage. ii Availability of TX Frequency Selection Methods Availability of TX Frequency Selection Methods The availability of TX frequency selection methods depends on model type. There are three model types: Standard...