Icom Icr7000 Hf Vhf Uhf Receiver Service Manual

COMMUNICATIONS RECEIVER D ICOM INCORPORATED The most sophisticated, continuous coverage receiver on the market today, the IC-R7000 is the result of both advanced ICOM engineering and state-of-the-art computer interface technology from ICOM such as the new CI-V System: a feature that allows for easy and convenient computer control of your IC-R7000. Equipped with 99 internal memories that are completely owner-programmable, the IC-R7000 is unmatched in scanning and coverage versatility within the 25 to 1300 MHz range and may even cover frequencies up to 2000MHz. Low band, aircraft, marine, business, FM, amateur radio, emergency services, government, and television bands - all are conveniently available and immediately accessible with the IC-R7000.: He Ea con COMMENE ‘so more HOR rCCE rer à Dre CE | 2 a ns. Five separate versions of the IC-R7000 have been designed for use in the U.S.A., Eu

--- TABLE DES MATIERES / CONTENTS --- TABLE OF CONTENTS SECTION 1 SPECIFICATIONS......................................................, Tod SECTION 2 OUTSIDE AND INSIDE VIEWS ....................................... 2—1—4 2-1 FRONT PANEL .....................444444 suisse eee esse. 2 — 2-2 REARPANEL..................44444444 eee use esse eessereseesssers 2 — 2 2-3 INSIDE VIEW (PLL UNIT) ..........,...,..,444444 4er 2 — 2 2-4 INSIDE VIEW (MAIN UNIT).....................44444 44e 2 — 8 2-5 INSIDE TOP VIEW (RF AND IF UNITS)...................................... 2—3 2-6 INSIDE BOTTOM VIEW (POWER SUPPLY AND DC-DC CONVERTER UNITS) ...... 2—4 2-7 INSIDE BOTTOM VIEW (LOGIC UNIT) ...................................... 2—4 SECTION 3 BLOCK DIAGRAM ..................................................... Om SECTION 4 CIRCUIT DESCRIPTION ............................................. A= 1~10 4-1 RECEIVER CIRCUITS ......... 00. eee eee ees 4—1~6 4-2 POWER SUPPLY CIRCUITS ......... 0... cece nent eens 4~6 4-3 PLLCIRCUITS ... 0. ccc en ete 44e 4—7~8 4-4 LOGIC CIRCUITS.................................................... 4—8~ 10 4-5 DISPLAY CIRCUITS...............................,..,..,4.404400. 4 — 10…