Icom IC-R20 Service Manual
Also see for IC-R20: Price listInstruction manualInstruction manualService manual
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D5DWA010CHG ON 1.2VCHG OFF 0VMAIN UNITTANSHI BOARDQ3UNR9214JQ2DTA114EEQ4DTA114EEQ8DTC114EEIC2NJM2360AMQ72SJ377IC1MM1433EVBEQ12SB1184Q5DTA114EEQ6DTA114EED6SB20-03PC70.22 C8100C10.22C2470R190.15 (1W)F3S-N5051F2S-N5051J1EXT.DC IN13.5VF1FGB 2A1CS 2ES 3CT 4GND5 INVIN6 V+7 SI8 CDC90.22R181kR17680C100.001C3470pD2SB20-03PL1 HK-08S050-2010C4470R1647kR15150kC12470R23 10C2147G RDS1VRPG3349S-7345.1vD4MA132WKC364.7C50.01131415161718192021222324R510kR6120kCHGSWRESETTP1TP2VREFGND1GND2ADJ1ADJ2ADJ3ADJ4TDET BAT1BAT2CSCFBCNTVCCADJ5VOUTLEDGLEDROSCOUTOSCFB–D3MA2S111D1SB20-03PR3560 R21560C130.001C150.001C140.001C160.15C60.1R2150CP1C220.1C240.1C250.001C260.1C230.001J4123456789C270.001CHGOUTCHGOUTDET2DET2DET2toTANSHI boardJ1BATT–DET1DET1DET1BATT+SWSWSW SWCONTCONT CONTTHDC280.1C290.001C300.1C310.001C330.001C350.001C320.1C340.1R9220k R14100kC180.1C190.1 C200.001R1112kR122.7kR2256k1234567891011121234J1123456789R10.15R210kCHGOUTCHGOUTtoBC-156MAIN unitJ4DET2DET2DET2BATT–BATT–DET1DET1 DET1DET1DET1BATT+BATT+5VCONTCONTTHDTHDRL1A-5W-KD11SS53 C10.047CP1CP2CP3CP4CP5CP6SBATT+SBATT–DET1BATT–BATT–BATT+DET2Explanatory notesVOLTAGE LINEExplanatory notesVOLTAGE LINERL1: ON 0VRL1: OFF 5.1V13.5V (EXT DC) 5.2V5.4V1.77 ms3.0 Vp-pCHG ONCHG OFF 0.6V+–+–12 - 212-3 BC-156 VOLTAGE DIAGRAM• MAIN UNIT• TANSHI BOARD |
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