Icom IC-F3, Service Manual

Page: 13 / 52

5 - 1
F3/S
F4/S
SECTION 5 ADJUSTMENT PROCEDURES
5-1 PREPARATION
■
REQUIRED TEST EQUIPMENT
EQUIPMENT
DC power supply
RF power meter
(terminated type)
Frequency counter
FM deviation meter
Digital multimeter
GRADE AND RANGE
Output voltage : 9.6 V DC
Current capacity : 5 A or more
Measuring range : 1–10 W
Frequency range : 120–500 MHz
Impedance : 50
Ω
SWR : Less than 1.2 : 1
Frequency range : 0.1–500 MHz
Frequency accuracy : ±1 ppm or better
Sensitivity
: 100 mV or better
Frequency range : DC–500 MHz
Measuring range : 0 to ±5 kHz
Input impedance : 10 M
Ω
/V DC or better
EQUIPMENT
Audio generator
Attenuator
Standard signal
generator (SSG)
DC voltmeter
Oscilloscope
AC millivoltmeter
GRADE AND RANGE
Frequency range : 300–3000 Hz
Output level : 1–500 mV
Power attenuation : 40 or 50 dB
Capacity : 10 W or more
Frequency range : 120–500 MHz
Output level : 0.1 µV–32 mV
(–127 to –17 dBm)
Input impedance : 50 k
Ω
/V DC or better
Frequency range : DC–20 MHz
Measuring range : 0.01–20 V
Measuring range : 10 mV–10 V
■
TRIMMER ADJUSTMENT
When you adjust the contents on page 5-4 or 5-8, TRIMMER ADJUSTMENT, the optional CS-F3
FIELD PROGRAMMING SOFTWARE
(Rev. 3.0 or later) and OPC-478
CLONING CABLE
are required.
• STARTING TRIMMER ADJUSTMENT
Turn ON power to the transceiver, connect a computer to the [SP] jack using the optional OPC-478 CLONING CABLE, then
start up the “ADJUST” program in CS-F3.
• STARTING THE PROGRAM
q
Boot up DOS.
w
Insert the CS-F3 backup disk into drive A.
e
Type the following to start up the program:
ADJ>ADJUST [Enter]
• The adjustment screen appears after reading set data
from the transceiver.
r
After the adjustment screen appears, set or modify the
data as desired.
NOTE:
When the EEPROM (IC7) is replaced or the transceiver displays an error message and beeps, the following oper-
ation is necessary before starting the ADJUSTMENT.
1. Download the programmed frequency data using the CS-F3
FIELD PROGRAMMING SOFTWARE
(Rev. 3.0 or later) from an
exact same version of the transceiver, then save it. (See the instructions for detailed operation.)
2. Return to DOS.
3. Copy the saved frequency data into the "ADJ" directory as follows:
A>COPY [file name].ICF A:\ADJ [ENT]
4. Connect the transceiver in which the EEPROM has been replaced, using the OPC-478 CLONING CABLE.
5. Change the directory to "ADJ", and type as follows:
A>CD ADJ [ENT]
A>ADJ>EEPROM [file name].ICF 1* [ENT]
When cloning is successful, the transceiver displays "CL GOOD".
*RS-232C port number. You have to type “A>EEPROM [file name].ICF 2” when the port number is set to “2”. This setting
can be confirmed in the SETUP window while CS-F3 is running.
A:\>CD ADJ
Boot up DOS, and
change the directory.
Start up command.
Program starts up,
then the adjustment
screen appears after
reading set data from
the transceiver.
A:\>ADJ>ADJUST
*****
Trimmer Control Software for IC–F3 Series
*****
RX:174.00000MHz Base Freq : 174.00000MHz PWR : High
Memory CH : 1
Power(Lo)
: 72
Power(Hi) : 142
MOD : 80
BPF 1 : 2
BPF 2 : 54
BPF 3 : 92
BPF 4 : 4
[TAB] : Display Parameters [F8] at BPF : Sweep [F9] at BPF : Sweep T1~T4
[Enter] at TXF : REF Set Mode
↑
/
↓
: Cursor Up/Down / : +/– ESC : Quit
D/A 1 (REF) 120 : 78h 2.353V
D/A 2 (MODE) 131 : 83h 2.569V
D/A 3 (T1) 192 : C0h 3.765V
D/A 4 (T2) 198 : C6h 3.882V
D/A 5 (T3) 204 : CCh 4.000V
D/A 6 (T4/PWR) 114 : 72h 2.235V A/D 1 (VIN) 171 : ABh 10.729V
A/D 2 (REMOTE) 255 : FFh 5.000V
A/D 3 (SD) 54 : 36h 1.059V
A/D 4 (ISENS) 177 : B1h 2.314V
A/D 5 (TEMPS) 186 : BAh 30.353'C
A/D 6 (LVIN) 108 : 6Ch 2.118V
TX:174.00000MHz