Icom IC F121S, IC F110S, IC F111S service manual Software Adjustment, Convenient

Page 17

SOFTWARE ADJUSTMENT – continued

Select an operation using [] / [] keys, then set specified value using [] / [] keys on the connected computer keyboard.

ADJUSTMENT

 

ADJUSTMENT CONDITION

 

 

MEASUREMENT

VALUE

 

 

 

 

 

 

UNIT

LOCATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RX

 

1

• Operating freq. :

136.000 MHz

 

MAIN

Connect a SINAD meter with a

Minimum distortion

SENSITIVITY

 

 

• IF bandwidth

: Wide

 

 

4 load to the external [SP]

level

 

[BPF T1],

 

 

• Connect a standard signal generator to

 

jack.

 

 

[BPF T2]

 

 

the antenna connector and set as:

 

 

 

 

 

 

 

Frequency

:

136.000 MHz

 

 

 

 

 

 

 

 

Level

:

10 µV* (–87 dBm)

 

 

 

 

 

 

 

Modulation

:

1 kHz

 

 

 

 

 

 

 

 

Deviation

: ±3.5 kHz

[N/W]

 

 

 

 

 

 

 

 

 

±2.8 kHz

[N/M]

 

 

 

 

 

 

 

• Receiving

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONVENIENT:

 

 

 

 

 

 

 

 

 

The BPF T1–BPF T2 can be adjusted automatically.

 

 

 

 

 

q-1: Set the cursol to “BPF ALL” on the adjustment program and then push [ENTER] key.

 

 

 

 

q-2: The connected PC tunes BPF T1, BPF T2 to peak levels.

 

 

 

 

 

 

or

 

 

 

 

 

 

 

 

w-1: Set the cursol to BPF T1 or BPF T2 as desired.

 

 

 

 

 

w-2: Push [ENTER] key to start tuning.

 

 

 

 

 

 

w-3: Repeat w-1 and w-2 to perform additional BPF tuning.

 

 

 

 

 

 

 

 

 

 

SQUELCH

 

1

• Operating freq. :

155.000 MHz

 

Rear

Connect a SINAD meter with a

Set “SQL level” to

LEVEL

 

 

• IF bandwidth

: Narrow

 

panel

4 load to the external [SP]

close squelch.

[SQL]

 

 

• Connect an SSG to the antenna con-

 

jack.

Then set “SQL level”

 

 

 

nector and set as:

 

 

 

 

 

 

 

 

 

at the point

where

 

 

 

Frequency

:

155.000 MHz

 

 

 

 

 

 

 

 

 

the audio

signals

 

 

 

Level

:

0.2 µV* (–121 dBm)

 

 

 

 

 

 

 

just appears.

 

 

 

Modulation

:

1 kHz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Deviation

: ±1.75 kHz

 

 

 

 

 

 

 

 

• Receiving

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*The output level of the standard signal generator (SSG) is indicated as the SSG’s open circuit.

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Image 17
Contents IF110S IF111S IF121S Repair Notes IntroductionOrdering Parts Explicit Definitions Receiver EURSection Inside View Disassembly Instructions Receiver Circuits Antenna Switching Circuit Main Unit3 1ST Mixer and 1ST if Circuits Main Unit RF Circuit Main UnitTransmitter Circuits PLL Circuits Power Amplifier Circuit Main UnitAPC Circuit Main Unit PLL Circuit Main UnitPort Allocations Power Supply CircuitsCPU Starting Software Adjustment Adjustment Software InstallationPreparation System RequirementsEquipment Grade and Range Required Test EquipmentScreen display exampe Voltage PLL AdjustmentPower Software AdjustmentConvenient Software AdjustmentTrimmer Adjustment Front Unit Section Parts ListMain Unit UnitPosistor 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