Adjustment Procedures; Preparation; Required Test Equipment; Adjustment Frequency - Icom IC-F410 Service Manual

SECTION 5

5-1 PREPARATION

' ' REQUIRED TEST EQUIPMENT

EQUIPMENT
Output voltage
DC power supply
Current capacity
Measuring range
RF power meter Frequency range
(terminated type) Impedance
SWR
Frequency range
Frequency counter Frequency accuracy : ±1 ppm or better
Sensitivity
Frequency range
FM deviation meter
Measuring range
DC voltmeter Input impedance
' ' ADJUSTMENT FREQUENCY DATA
Before starting the adjustment, back up the original frequen-
cy data and program adjustment frequency at right using the
optional programming software (EX-2057 Rev. 1.0 or later
for IC-F410/F420, CS-F300S for IC-F410S/F420S), cloning
cable (OPC-478) and adaptor cable (OPC-592) for your con-
venience.
' ' TRIMMER ADJUSTMENT
When you adjust the contents on page 5-4, TRIMMER
ADJUSTMENT, the optional EX-2057 (or CS-F300S), OPC-
478 and JIG CABLE (See illustration at CONNECTIONS.)
are required.
• STARTING TRIMMER ADJUSTMENT
Turn the transceiver power ON, connect a computer to the [MIC] jack using the optional OPC-478 CLONING CABLE and JIG
CABLE, then start up the "ADJUST" program in EX-2057 (or CS-F300S).
STARTING THE PROGRAM
•
q Boot up DOS.
w Insert the EX-2057 (CS-F300S) backup disk into drive A.
e Type the following to start up the program:
ADJ>ADJUST [/A : /B]*
• The adjustment screen appears after reading set data from
the transceiver.
r After the adjustment screen appears, set or modify the data as
desired.
* 1 PLL reference crystal type.
/A: This does not activate for IC-F410/F410S/F420/F420S's
adjustment.
/B: TCXO crystal type. (You must select [/B] for IC-
F410/F410S/F420/F420S's adjustment.)
* 2 RS-232C port number.
NOTE:
When the EEPROM (FRONT unit; IC3) is replaced or the transceiver displays an error message and beeps, the
following operation is necessary before starting the ADJUSTMENT.
1. Download the programmed data using the EX-2057 or CS-F300S from an exact same version of the transceiver, then
save it. (See the instructions for detailed operation.)
2. Set the cursor to the [MODEL] and push the [
3. Type "RESERVE" then push [Enter].
"Reserved" indicator flashes at the right hand, top corner on the computer screen.
4. Connect the transceiver which has been repaired, then write the data to the transceiver.

ADJUSTMENT PROCEDURES

GRADE AND RANGE
: 13.2 (13.6) V DC
: 15 A or more
: 1–50 W
: 300–600 MHz
: 50 Ω
: Less than 1.2 : 1
: 0.1–600 MHz
: 100 mV or better
: DC–600 MHz
: 0 to ±10 kHz
: 50 kΩ/V DC or better
1 [/1 : /2]* 2 [Enter]
↓
] key on the computer keyboard.
EQUIPMENT
Frequency range
Audio generator
Measuring range
Frequency range
Standard signal
Output level
generator (SSG)
Frequency range
Oscilloscope
Measuring range
AC millivoltmeter Measuring range
Input impedance
External speaker
Capacity
Power attenuation
Attenuator
Capacity

• ADJUSTMENT FREQUENCY

Frequency [MHz]
Channel
∏ ∏ Ò Ò
No. L ML
1 400.0 440.0 450.0 470.0
2 430.0 470.0
3 400.0 440.0 450.0 470.0
4 400.0 440.0 450.0 470.0
∏ ∏
: IC-F410/F410S (PMR),
L: L-band, ML: ML-band, MH: MH-band, H: H-band
A:\>CD ADJ
A:\>ADJ>ADJUST [/B] [/1]
∗∗∗∗∗ Trimmer Control Software for IC–F300 Series ∗∗∗∗∗ Rev. 1.0
A/D VIN 165 : A5h 13.23V D/A BP T1
A/D TEMPS 173 : ADh 24.81'C D/A BP T2
A/D LVIN 47 : 2Fh 0.92V D/A BP T3
A/D SD 38 : 26h 0.75V D/A T4/POW
D/A DTCS BL 149 : 95h 58.43% D/A REF
D/A SQL Lev 0 : 00h 0.00% D/A AF/Dev
RX:440.20000MHz TX:440.10000MHz POW: High
Memory CH : 1
Power(Hi) : 174 BPF T1
' ' ' ' ' ' ' ' ' ' ' – – – – – – – – –
Power(L2) : 88 BPF T2
' ' ' ' ' ' ' – – – – – – – – – – – – – –
Power(L1) : 44 BPF T3
' ' ' – – – – – – – – – – – – – – – – – – –
M O D N : 68 BPF T4
' ' ' ' '– – – – – – – – – – – – – – – – –
M O D W : 137 AF Vol.L
' ' ' ' ' ' ' ' ' ' ' – – – – – – – – –
DTCS N : 24 S Q L
' ' – – – – – – – – – – – – – – – – – – – –
DTCS W : 51
' ' ' '– – – – – – – – – – – – – – – – – –
TXF SET :
[Space]: A/D, D/A Read
[F9] at BPF T1: Sweep T1 ~ T4
[TAB]: Display Parameters [F8] at BPF: Sweep
↑ / ↓: Cursor Up/Down
[Enter] at TXF: REF Set Mode
5 - 1
GRADE AND RANGE
: 300–3000 Hz
: 1–500 mV
: 0.1–600 MHz
: 0.1 µV–32 mV
(–127 to –17 dBm)
: DC–20 MHz
: 0.01–20 V
: 10 mV–10 V
: 4 Ω
: 5 W or more
: 50 or 60 dB
: 50 W or more
∏ ∏ Ò Ò
ML MH H H selection
490.0
490.0 520.0 512.0
490.0
490.0
Ò Ò
: IC-F420/F420S (LMR)
Boot up DOS,
and change the
directory.
98 : 62h 2.03V
49 : 31h 1.41V
41 : 29h 1.31V
43 : 2Bh 1.34V
Startup command.
147: 93h 2.40V
0 : 00h 0.00%
MODE: Wide
Program starts up,
: 40
' ' ' ' ' – – – – – – – – – – – – – – – – –
: - 9
' ' ' ' – – – – – – – – – – – – – – – – – –
: -17 then the adjust-
' ' ' ' – – – – – – – – – – – – – – – – – –
: -15
' ' ' ' '– – – – – – – – – – – – – – – – –
: 1
– – – – – – –– – – – – – – – – – – – – – – –
ment screen
: 10
' ' – – – – – – – – – – – – – – – – – – – –
appears after read-
ing set data from
the transceiver.
< / > : –/+ ESC : Quit
Power
Low1
Low1
Low2
High