Icom IC-Q7A Service Manual page 12

SECTION 5
ADJUSTMENT PROCEDURES
5-1 PREPARATION
782 PLUG ADAPTOR CABLE and *OPC-478 are requird.
Ш REQUIRED TEST EQUIPMENT
EQUIPMENT GRADE AND RANGE
EQUIPMENT GRADE AND RANGE
:3.0 V DC
: ТА or more
Output voltage
DC power supply Current capacity
Measuring range :1W
Frequency range : 100-600 MHz
Impedance : 50 Q
SWR :Less than 1.2 : 1
Frequency range | :0.1-600 MHz
Frequency accuracy : +1 ppm or better
Sensitivity : 100 mV or better
: 30-600 MHz
:0 to +10 kHz
RF power meter
(terminated type)
Frequency counter
Frequency range
FM deviation meter :
Measuring range
Ш ADJUSTMENT FREQUENCY DATA
When program the adjustment frequency data (at right) into
memory channel, back up the original memory data using the
adjustment program, *OPC-478 and OPC-782, and re-pro-
gram it after adjustment.
CAUTION: When program the adjustment frequency data
into the transceiver, the transceiver's memory
channel wiil be overwritten the data and deleted
original memory data at the same time.
Ш ENTERING THE ADJUSTMENT MODE
(D Connect a PC with an OPC-478 and OPC-782 to the
[SP/MIC] jack.
(2 Boot up DOS.
(3) Type the following to start up the adjustment program:
A:\>CLONE [Enter]
* Main Menu appears at the top side of the cloning pro-
gram, select the sub-menu "Edit'-"Adjust "Memory
ch", then input adjustment frequency (at right).
( Select "Write РС-» transceiv" of the Cloning on the
Main Menu.
* Application writes adjustment frequency data to the
connected transceiver.
(5) Disconnect the cloning cable, then start the adjust-
ments.
Ш OPERATING ON THE ADJUSTMENT MODE
Change the value : [DIAL]
: [BAND]
: [BAND]
Change the channel [UP]
Change the channel [DOWN]
M EXITING THE ADJUSTMENT MODE
: 50 КОЛИ DC or better
: 300-3000 Hz
: 1-500 mV
: 0.1-300 MHz
:0.1 uV-32 mV
(7127 to -17 dBm)
: DC-20 MHz
:0.01-20 V
:10 mV-10 V
: 30 or 40 dB
DC voltmeter Input impedance
Frequency range
Measuring range
Audio generator
Frequency range
Standard signal Output level
generator (SSG)
Oscilloscope Frequency fange
Measuring range
AC millivoltmeter Measuring range
Attenuator Power attenuation
" ADJUSTMENT FREQUENCY
[MHz]
Channel
No.
20-11 439.800
145.000 146.000
1 2" 435.000
18"? 145.000 |
Frequency
Display ch.
N
F
C
R
R
146.000
0.
ჩ
A
tk
tk
S
S
RS
RS
RS
14"? 435.000 | 445.000
15 145.100
16 435.100
|
| 8 | 81100 | RS |
9
NOTE: Adjustment frequency data must be programmed into
proper channels, don't turn the order of channels, other-
wise adjustment value will be wrong.
*' Europe and italy versions only.
* Depending on the versions.
Cannel 11: — 145.000—[EUR]
146.000—[ITA]
Cannel 13: — 145.000—[EUR], [TWN]
146.000—[ITA], [SEA], [USA], [USA-1]
Cannel 14: 435.000—[ЕОВ], [ITA], [SEA], [TWN]
445.000—[USA], [USA-1]
ceiver does not work properly.
(D Turn power OFF.
(2) Push and hold [FUNC] and [V/M], then turn power ON.
NOTE: All memory data except adjustment value will be cleared at this operation.