Service manual communications receiver.
Introduction danger ordering parts repair notes this service manual describes the latest service information for the ic-r3 at the time of publication. Never connect the receiver to an ac outlet or to a dc power supply that uses more than 16 v. Such a connection could cause a fire hazard and/or elect...
Table of contents section 1 specifications section 2 inside views section 3 disassembly instructions section 4 circuit description 4 - 1 receiver circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1 4 - 2 pll cricuits . . . . . . . ....
M general • frequency range : 0.495–2450.095 mhz • mode : f3, a3, c3f (tv) • no. Of memory channel : 450 channels • frequency stability : ±6 ppm max. (–10˚c to +50˚) • tuning steps : 5, 6.25, 10, 12.5, 15, 20, 25, 30, 50, and 100 khz • anntena connector : bnc (50 Ω ) • power supply requirement : • p...
Section 2 inside views 2 - 1 • rf, rf-b, vco and fm-tv units • logic unit 2nd if circuit (fi3: fl-319) fm-tv unit ([oth-2] only]) rf-b unit vco unit rf unit cpu system clock (x1: cr-613) power amplifier (ic3: xc62fp3002mr) dc-dc converter cpu (ic1: m38267m8l-256gp) pll converter circuit (ic15: ta310...
9 - 3 9-2 fm-tv unit • top view r33 video gnd afout sifout gnd ifin ic22 c30 c74 c26 c29 c57 r54 r38 r39 r55 r24 c22 l21 l41 c17 r41 cp1 b5415d c41 c12 r13 r12 r8 r6 r31 c28 c13 c10 r10 c16 r16 r15 r9 r14.
1-1-32, kamiminami, hirano-ku, osaka, 547-0003, japan s-13703iz-cd- 1 © 2000 icom inc..
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