Bottom View Driver Board, VARISTOR-2 Board | Icom IC-F7000 specification

• BOTTOM VIEW (DRIVER BOARD)

DRVO

GND

GND

to PA unit J6301

DRVI

DRVI

GND

GND

DRVO

to PA unit J6302

9-3-7 VARISTOR-2 BOARD

VARO

GND

GND

to PA unit J6412

9 - 14

Image 67

Icom IC-F7000 service manual Bottom View Driver Board, VARISTOR-2 Board

Contents

Service Manual OTH IntroductionOrdering Parts Repair Notes AUS Table of Contents Specifications SP-25 External Speaker ‘ General RC-26 Remote Controller ‘ General Unit mm inch 37 1 15 RC-26 Section Inside Views IC-F7000 Bottom View IC-F7000 TOP View ‘ in Case of Using External Reference Signal About External Reference Signal Input ‘ Connection ‘ in Case of Using Internal Reference Signal Receiver Circuits Circuit DescriptionDSP Unit AF Amplifier Circuit DSP and Main Units DSP Receiver Circuit Main and DSP UnitsAGC Circuit DSP and Main Units DSP Circuit Transmitter Circuits VER Board RF Circuit MAIN, PA, PLL Units and DRIRF Filter Circuit PLL Circuits Microphone Circuit Display Board Reset Circuit Display Board3 2ND LO and Reference Oscillator Circuits PLL Unit LCD Circuit Display and Connect Boards PLL Unit Voltage Line Power Supply CircuitsPA Unit Voltage Line Display Board RC-26 Voltage Line Output Expander IC for the PLL Strobe Main Unit IC3601 Port AllocationsOutput Expander IC for the PLL Unit Main Unit IC3602 Output Expander IC Main Unit IC3603 Output Expander IC for Bandpass FIL- Ters Main Unit IC36046 D/A Converter IC Main Unit IC3606 Front CPU Port Allocations RC-26, Display Board IC8201 Connection Adjustment ProceduresPreparation Required Test Equipment Operating on the Adjustment Mode Entering the Adjustment Mode Voltage PLL Unit AdjustmentLPL Lock PLL PLL Unit TOP View PA and Filter Units Adjustment PLL Unit Bottom View PA Unit TOP View Receiver Adjustments Main Unit TOP View L209 PresettingRC-26 Front Panel Transmitter Adjustments VOL Dial IC-APC Main Unit Section Parts List Main Board Resistor ERJ3GE JPW Resistor ERJ12YJ0R00U R3332 7030003640 ECEV1CA471P Tantalum ECST1AY335R ADM202EARN PLL Unit Resistor ERA3YEB Mylar PA Unit DSP Unit DSP Board VARISTOR-1 Board Driver BoardVARISTOR-2 Board Display Board Front Unit Rear Board Connect Board HM-146 Main Unit MIC Unit Mechanical Parts and DisassemblyFront Parts Chassis Parts Accessries Front Parts AccessoriesConnect Board DR Driver Board Chassis PartsMIC Unit DS DSP Board Transistor and FET’S SEMI-CONDUCTOR InformationDiodes Rear Board TOP View Board LayoutsTOP View Connect Board TOP View Bottom View Rear Board Bottom View MIC Unit Bottom View Connect Board Display Board TOP View Bottom View Display Board DSP Board TOP View J9901 J9902 Bottom View DSP Board J2051 Bottom View Main Unit PA Unit Bottom View PA Unit PLL Unit Bottom View PLL Unit Driver Board TOP View VARISTOR-1 Board Bottom View Driver Board Voltage Line TX Line RX Line Common Line Section Block Diagram IC-F7000 Wiring Diagram 12-1 RC-26 and HM-146 Voltage Diagrams Main Unit Explanatory notes Main PA Unit PLL Unit JPW-ERJ3GE DSP Board