PLL Unit Adjustment, LPL Lock, Pll, Voltage | Icom IC-F7000 guide

5-2 PLL UNIT ADJUSTMENT

ADJUSTMENT

ADJUSTMENT CONDITIONS

MEASUREMENT

VALUE

ADJUSTMENT

UNIT

LOCATION

UNIT

ADJUST

LPL LOCK

1

• Operating frequency

: 0.5000 MHz

PLL

Connect a digital multi

1.0 V

PLL

C5305

VOLTAGE

• Mode

: J3E

meter or

oscilloscope

• Receiving

to the

check

point

CP5301.

2

• Operating frequency

: 0.4999 MHz

Less than 4.0 V

Verify

• Receiving

HPL LOCK

1

• Operating frequency

: 29.9999 MHz

PLL

Connect a digital multi

4.2 V

PLL

C5521

VOLTAGE

• Mode

: J3E

meter or

oscilloscope

• Receiving

to the

check

point

CP5401.

2

• Operating frequency

: 0.0300 MHz

More than 0.8 V

Verify

• Receiving

REFERENCE

1

• Wait for 5 minutes after power ON.

PLL

Connect

an RF

volt-

Maximum level

PLL

L5203,

FREQUENCY

• Terminate P5201 on the PLL unit to

meter to

the check

L5204

ground with a 50 Ω resister.

point P5201.

• Receiving

2

Connect

a

frequency

64.000000 MHz

R5255

counter to

the check

point P5201.

5 - 3

Image 24

Icom IC-F7000 service manual PLL Unit Adjustment, LPL Lock, Pll, Voltage, HPL Lock

Contents

Service Manual Introduction Ordering Parts Repair NotesAUS OTH Table of Contents Specifications RC-26 Remote Controller ‘ General SP-25 External Speaker ‘ General Unit mm inch 37 1 15 Section Inside Views RC-26 IC-F7000 TOP View IC-F7000 Bottom View About External Reference Signal Input ‘ in Case of Using External Reference Signal ‘ in Case of Using Internal Reference Signal ‘ Connection Circuit Description Receiver CircuitsDSP Unit DSP Receiver Circuit Main and DSP Units AGC Circuit DSP and Main UnitsDSP Circuit AF Amplifier Circuit DSP and Main Units Transmitter Circuits RF Circuit MAIN, PA, PLL Units and DRI VER BoardRF Filter Circuit PLL Circuits Reset Circuit Display Board 3 2ND LO and Reference Oscillator Circuits PLL UnitLCD Circuit Display and Connect Boards Microphone Circuit Display Board Power Supply Circuits PA Unit Voltage LineDisplay Board RC-26 Voltage Line PLL Unit Voltage Line Port Allocations Output Expander IC for the PLL Strobe Main Unit IC3601Output Expander IC for the PLL Unit Main Unit IC3602 Output Expander IC for Bandpass FIL- Ters Main Unit IC3604 Output Expander IC Main Unit IC36036 D/A Converter IC Main Unit IC3606 Front CPU Port Allocations RC-26, Display Board IC8201 Adjustment Procedures PreparationRequired Test Equipment Connection Entering the Adjustment Mode Operating on the Adjustment Mode PLL Unit Adjustment LPL LockPLL Voltage PLL Unit TOP View PA and Filter Units Adjustment PA Unit TOP View PLL Unit Bottom View Receiver Adjustments L209 Presetting Main Unit TOP ViewRC-26 Front Panel Transmitter Adjustments IC-APC VOL Dial Section Parts List Main Unit Main Board Resistor ERJ3GE JPW Resistor ERJ12YJ0R00U R3332 7030003640 ECEV1CA471P Tantalum ECST1AY335R PLL Unit ADM202EARN Resistor ERA3YEB Mylar PA Unit DSP Unit DSP Board Driver Board VARISTOR-1 BoardVARISTOR-2 Board Front Unit Display Board Connect Board Rear Board HM-146 Main Unit Mechanical Parts and Disassembly Front PartsChassis Parts MIC Unit Accessries Accessories Front PartsConnect Board Chassis Parts MIC UnitDS DSP Board DR Driver Board SEMI-CONDUCTOR Information Transistor and FET’SDiodes Board Layouts TOP ViewConnect Board TOP View Rear Board TOP View Bottom View MIC Unit Bottom View Connect Board Bottom View Rear Board Display Board TOP View Bottom View Display Board DSP Board TOP View Bottom View DSP Board J9901 J9902 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 Section Block Diagram Voltage Line TX Line RX Line Common Line Wiring Diagram IC-F7000 Voltage Diagrams 12-1 RC-26 and HM-146 Main Unit Explanatory notes Main PA Unit PLL Unit JPW-ERJ3GE DSP Board