IC-F520 Datasheet | Icom

SERVICE MANUAL VHF TRANSCEIVER i F510 i F520 i F521 INTRODUCTION This service manual describes the latest service information for the IC-F510, IC-F520 and IC-F521 VHF TRANSCEIVERS at the time of publication. MODEL IC-F510 IC-F520 IC-F521 VERSION Europe General U.S.A. U.S.A. General SYMBOL EUR GEN USA USA GEN To upgrade quality, any electrical or mechanical parts and internal circuits are subject to change without notice or obligation. DANGER NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than 16 V. This will ruin the transceiver. DO NOT expose the transceiver to rain, snow or any liquids. DO NOT reverse the polarities of the power supply when connecting the transceiver. DO NOT apply an RF signal of more than 20 d Bm (100 m W) to the antenna connector. This could damage the transceiver’s front end. ORDERING PARTS Be sure to include the following four points when ordering replacement parts: 1. 10-digit order numbers 2. ponent part number and name 3. Equipment model name and unit name 4. Quantity required <SAMPLE ORDER> 1110003490 S.IC TA31136FN IC-F510 MAIN UNIT 5 pieces 8810009990 Screw PH BT M3×8 ZK IC-F520 Bottom cover 10 pieces Addresses are provided on the inside back cover for your convenience. REPAIR NOTES 1. Make sure a problem is internal before disassembling the transceiver. 2. DO NOT open the transceiver until the transceiver is disconnected from its power source. 3. DO NOT force any of the variable ponents. Turn them slowly and smoothly. 4. DO NOT short any circuits or electronic parts. An insulated tuning tool MUST be used for all adjustments. 5. DO NOT keep power ON for a long time when the transceiver is defective. 6. DO NOT transmit power into a signal generator or a sweep generator. 7. ALWAYS connect a 50 d B to 60 d B attenuator between the transceiver and a deviation meter or spectrum analyzer when using such test equipment. 8. READ the instructions of test equipment thoroughly before connecting...