Icom IC-F7000 service manual PA Unit

Page 62

9-3-3 PA UNIT

• TOP VIEW

to CHASSIS W4501

1

to TUNER

10

GND

HV13V

J6703

13.8

TUM4

TUM2

TUM1

TURS

TSCS

TUM3

STAT

KEY

GND

J6412

3 1

GND GND VARO

J6701

to VARISTOR-2 board

1

to

MAIN unit J1901

29

PON

HV

S13V

S13V

S13V

KEYS

TULK

TUM2

TURS

TUM3

GND

GND

GND

GND

THRM

HV

FANC

S13V

S13V

S13V

STAT

TUM4

TUM1

TSCS

ICV

GND

GND

GND

GND

T8V

2

30

J6301

4GND GND DRVI

1 DRVI

to DRIVER board

5

4

8

1

FLIN W7001

from PLL unit J7001

J6501

2 1

GND FAN+

to FAN

1

4

J6302

DRVO

DRVO

GND

GND

to DRIVER board

				YGR
from/to MAIN unit J1
3		1
J6411	GND	VARO	VARI	to
				to
				VARISTOR-1
				VARISTOR-1
				board

9 - 9

Image 62

Contents Service Manual AUS IntroductionOrdering Parts Repair Notes OTHTable of Contents Specifications RC-26 Remote Controller ‘ General SP-25 External Speaker ‘ GeneralUnit mm inch 37 1 15 Section Inside Views RC-26IC-F7000 TOP View IC-F7000 Bottom ViewAbout External Reference Signal Input ‘ in Case of Using External Reference Signal‘ in Case of Using Internal Reference Signal ‘ ConnectionDSP Unit Circuit DescriptionReceiver Circuits DSP Circuit DSP Receiver Circuit Main and DSP UnitsAGC Circuit DSP and Main Units AF Amplifier Circuit DSP and Main UnitsTransmitter Circuits RF Filter Circuit RF Circuit MAIN, PA, PLL Units and DRIVER Board PLL Circuits LCD Circuit Display and Connect Boards Reset Circuit Display Board3 2ND LO and Reference Oscillator Circuits PLL Unit Microphone Circuit Display BoardDisplay Board RC-26 Voltage Line Power Supply CircuitsPA Unit Voltage Line PLL Unit Voltage LineOutput Expander IC for the PLL Unit Main Unit IC3602 Port AllocationsOutput Expander IC for the PLL Strobe Main Unit IC3601 6 D/A Converter IC Main Unit IC3606 Output Expander IC for Bandpass FIL- Ters Main Unit IC3604Output Expander IC Main Unit IC3603 Front CPU Port Allocations RC-26, Display Board IC8201 Required Test Equipment Adjustment ProceduresPreparation ConnectionEntering the Adjustment Mode Operating on the Adjustment ModePLL PLL Unit AdjustmentLPL Lock VoltagePLL Unit TOP View PA and Filter Units Adjustment PA Unit TOP View PLL Unit Bottom ViewReceiver Adjustments RC-26 Front Panel L209 PresettingMain Unit TOP View Transmitter Adjustments IC-APC VOL DialSection Parts List Main UnitMain Board Resistor ERJ3GE JPW Resistor ERJ12YJ0R00U R3332 7030003640 ECEV1CA471P Tantalum ECST1AY335R PLL Unit ADM202EARNResistor ERA3YEB Mylar PA Unit DSP Unit DSP Board VARISTOR-2 Board Driver BoardVARISTOR-1 Board Front Unit Display BoardConnect Board Rear BoardHM-146 Main Unit Chassis Parts Mechanical Parts and DisassemblyFront Parts MIC UnitAccessries Connect Board AccessoriesFront Parts DS DSP Board Chassis PartsMIC Unit DR Driver BoardDiodes SEMI-CONDUCTOR InformationTransistor and FET’S Connect Board TOP View Board LayoutsTOP View Rear Board TOP ViewBottom View MIC Unit Bottom View Connect Board Bottom View Rear BoardDisplay Board TOP View Bottom View Display Board DSP Board TOP View Bottom View DSP Board J9901 J9902J2051 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 Section Block Diagram Voltage Line TX Line RX Line Common LineWiring Diagram IC-F7000Voltage Diagrams 12-1 RC-26 and HM-146Main Unit Explanatory notes Main PA Unit PLL Unit JPW-ERJ3GE DSP Board