Manuals / Icom / Home Audio / Stereo System

Icom IC F121S, IC F110S, IC F111S service manual Bottom View Main Unit

Models: IC F121S IC F110S IC F111S

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Parts list Section Block Diagram Disassembly Instructions Starting Software Adjustment Power Supply Circuits Service Manual

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• BOTTOM VIEW (MAIN UNIT)

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Icom IC F121S, IC F110S, IC F111S service manual Bottom View Main Unit

Page 67 Page 69

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Contents

IF110S IF111S IF121S Repair Notes IntroductionOrdering Parts Explicit Definitions EUR Receiver Section Inside View Disassembly Instructions Antenna Switching Circuit Main Unit Receiver Circuits3 1ST Mixer and 1ST if Circuits Main Unit RF Circuit Main Unit Transmitter Circuits Power Amplifier Circuit Main Unit PLL CircuitsAPC Circuit Main Unit PLL Circuit Main Unit Power Supply Circuits Port Allocations CPU Adjustment Software Installation Starting Software AdjustmentPreparation System Requirements Required Test Equipment Equipment Grade and Range Screen display exampe PLL Adjustment Voltage Software Adjustment Power Software Adjustment Convenient Trimmer Adjustment Section Parts List Front Unit Unit Main Unit Posistor PRF18BD471QB1RB Ceramic Tantalum ECST1CY105R =Surface mount Mechanical Parts Main Unit SEMI-CONDUCTOR Information Board Layouts Bottom View Front Unit ANT Bottom View Main Unit Section Block Diagram Voltage Diagrams Main Unit Beepo Pwon Page Page Service Manual IC-F210S Low Band 400-430 MHz High Band 440-490 MHz Type of emission 12.5 kHz Narrow/25 kHz Wide 8K50F3E/16K0F3E IC3 Disassembly Instructions 2nd if filter 450 kHz Transmitter Circuits IC4 MB15A02PFV1 Output Expander Main unit IC6 Switching circuit Main unit Q23 Adjustment Procedures FM deviation meter RF power meter CH No RX Freq = 440.200000, TX Freq = RF Power High C133 430.000 MHz Panel Counter to the antenna connec MHz L Operating freq 400.000 MHz L Trimmer Adjustment Ceramic ECJ0EB1C153K Coil LQW2BHN15NJ01L Coil Eljre R10G-F Ceramic GRM31M4C2H2R0CY21L Tantalum CH 1H 8010019060 Chassis 25W 8010019130 Long chassis 45W MP8 M DAN222TL DSA3A1 HVC350B Board Layouts Bottom View Front Unit Chassis IC3 EP3 EP2 Bottom View Main Unit Tmut R29 18k C19 NTCG20 VCC1 VCC2

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