Icom IC-T7H Service Manual

Also see for IC-T7H: Instruction manual Instruction manual

Contents

INTRODUCTIONDANGERORDERING PARTSREPAIR NOTESThis service manual describes the latest service informationfor the IC-T7H DUAL BAND FM TRANSCEIVER at the timeof publication.4 version of the IC-T7H have been designed. This servesmanual cover each versions.NEVER connect the transceiver to an AC outlet or to a DCpower supply that uses more than 16 V. This will ruin thetranscever.DO NOT expose the transceiver to rain, snow or any liquids.DO NOT reverse the polarities of the power supply whenconnecting the transceiver.DO NOT apply an RF signal of more than 20 dBm (100mW)to the antenna connector. This could damage the transceiv-er’s front end.Be sure to include the following four points when orderingreplacement parts:1. 10-digit order numbers2. Component part number and name3. Equipment model name and unit name4. Quantity required<SAMPLE ORDER>1110002700 S.IC NJM2904M-T1 IC-T7H 1F UNIT 5pieces8810008750 Screw PH BO 2 x 15 ZK IC-T7H Chassis 10piecesAddresses are provided on the inside back cover for yourconvenience.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 components. Turn them slowly and smoothly.4. DO NOT short any circuits or electronic parts. An insulated turning 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 40 dB to 50 dB attenuator between the transceiver and a deveiation meter or spectrum analyzer whenusing such test equipment.8. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver.To upgrade quality, all electrical or mechanical parts andinternal circuits are subject to change without notice orobligation.MODELIC-T7HVERSION SYMBOLEuropeItalySE AsiaU.S.A.EURITASEAUSA-3