Icom IC-R75 Instruction Manual
Also see for IC-R75: Price listInstruction manualInstruction manualService manual
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Contents
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1034OPTION INSTALLATIONS Opening the receiver’s caseFollow the case and cover opening procedures shownhere when you want to install an optional unit or adjustan internal unit, etc.CAUTION: DISCONNECT the DC power cablefrom the receiver before performing any work on thereceiver. Otherwise, there is danger of electric shockand/or equipment damage.q Remove the 2 screws from the left side of the re-ceiver to remove an optional carrying handle, if nec-essary.w Remove the 4 screws from the top of the receiverand 4 screws from the sides, then lift up the topcover.e Remove the 2 screws from the bottom of the re-ceiver, slide the cover backward, then remove thebottom cover.The UT-102 announces the received frequency,mode, S-meter level and current time in a clear, elec-tronically-generated voice, in English (or Japanese).➥ Push [LOCK] for 2 sec. to announce the frequency,etc.q Remove the top cover as shown above.w Remove the protective paper attached to the bot-tom of the UT-102 to expose the adhesive strip.e Plug UT-102 into J1271 on the MAIN unit asshown at right.r Return the top cover to its original position. CR-282 HIGH STABILITY CRYSTAL UNITBy installing the CR-282, the total frequency stabilityof the receiver will be improved.q Remove the top cover as shown in the diagramabove.w Remove 5 screws from the PLL unit, disconnectP1 from J491 (MAIN unit), then remove the PLLunit.e Remove the supplied internal crystal and replacewith the CR-282.r Adjust the reference frequency at L2 using a fre-quency counter.t Return the PLL unit and top cover to their originalpositions.PLL unitMAIN unitCR-282InternalcrystalConnect a frequency counterhere and adjust the frequencyto 60.00000 MHz.L2PLL unit UT-102 VOICE SYNTHESIZER UNIT |
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