Icom IC-R2 Service Manual - Section 5
5 - 1
5-1 PREPARATION
The receiver (IC-R2) must be adjusted on the adjustment mode after programmed adjustment frequency data into memory chan-
nel. When you program adjustment frequency data into memory channel, optional CS-R2
PROGRAMMING SOFTWARE
, OPC-478
CLONING CABLE are requird
.
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REQUIRED TEST EQUIPMENT
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SOFTWARE INSTALLATION
NOTE: Before using the program, make a backup copy of the original disk. After making a backup copy, keep the original disk
in a safe place.
q
Boot up DOS.
w
Insert the backup disk into the floppy drive A.
e
Type the following to install the adjustment program:
A:\>INSTALL A C:\CSR2 [Enter]
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ADJUSTMENT FREQUENCY DATA
When program adjustment frequency data (at right) into memory
channel, back up the original memory data using the optional CS-
R2, OPC-478, and re-program it after adjustment.
CAUTION: When clone the adjustment frequency data to the
receiver, the receiver’s memory channel wiil be over-
written the data and deleted original memory data at
same time.
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ENTERING THE ADJUSTMENT MODE
q
Connect a JIG (see illustration at CONNECTION) to the [SP]
jack.
w
Push and hold [FUNC], then turn power ON.
e
Disconnect the JIG and connect a PC with an OPC-478.
r
Boot up DOS.
t
Type the following to start up the adjustment program:
C:\>CD CSR2 [Enter]
C:\CSR2>CSR2 [Enter]
• Main menu appears at the top side of the cloning program,
select the sub-menu “Screen”–“Memory CH”–“Bank 1”, then
input adjustment frequency (at right).
y
Select “Write –> Receiver” of the Clone on the top menu.
• Application writes adjustment frequency data to the connected receiver.
u
Disconnect the cloning cable and turn power OFF, then turn power ON to start adjustment.
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OPERATING ON THE ADJUSTMENT MODE
Change the value
: [DIAL]
Change the channel [UP]
: [BAND]
Change the channel [DOWN]
: [BAND]
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EXITING THE ADJUSTMENT MODE
When the adjustment is finished, the receiver must be cancelled adjustment mode to use normal operation, otherwise receiver
does not work properly.
q
Turn power OFF.
w
Push and hold [FUNC] and [V/M], then turn power ON.
NOTE: All memory data except adjustment value will be cleared at this operation.
EQUIPMENT
DC power supply
AC millivoltmeter
External speaker
GRADE AND RANGE
Output voltage
: 3.0 V DC
Current capacity
: 1 A or more
Measuring range
: 10 mV–10 V
Input impedance
: 8
Ω
Capacity
: 1 W or more
EQUIPMENT
Frequency counter
Standard signal
generator (SSG)
GRADE AND RANGE
Frequency range
: 0.1–600 MHz
Frequency accuracy : ±1 ppm or better
Sensitivity
: 100 mV or better
Frequency range
: 0.1–1300 MHz
Output level
: 0.1 µV–32 mV
(–127 to –17 dBm)
• ADJUSTMENT FREQUENCY
NOTE: Adjustment frequency data must be pro-
grammed into proper channels, don’t turn the
order of channels, otherwise adjustment value
will be wrong.
SECTION 5
ADJUSTMENT PROCEDURES
Channel Frequency
Display
ch.
No.
[MHz]
No.
0
280.100
FR
1
145.600
tk
2
435.600
tk
3
14.100
RS
4
145.100
RS
5
200.100
RS
6
435.100
RS
7
650.100
RS
8
1100.100
RS