Icom IC-7000 Service Manual - Page 16

Adjustment Procedures, Preparation - antenna tuner

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SECTION 4 ADJUSTMENT PROCEDURES 4-1 PREPARATION Some adjustment must be performed on the adjustment mode. M REQUIRED TEST EQUIPMENT EQUIPMENT GRADE AND RANGE DC power supply Output voltage Current capacity : 13.8 V DC : 30 A or more RF power meter (treminated type) Measuring range Frequency range Impedance SWR : 0.5-200 W : 1.8-500 MHz : 50 Ω : 1.2 : 1 or better Frequency counter Frequency range : 0.1-500 MHz Frequency accuracy : ±1 ppm or better Sensitivity : 100 mV or better RF voltmeter Frequency range Measuring range : 0.1-500 MHz : 0.01-10 V EQUIPMENT Distortion meter Oscilloscope Digital multimeter AC millivoltmeter DC voltmeter DC ammeter Audio generator Standard signal generator (SSG) Frequency range Output level : 0.1-500 MHz : 0.1 µV to 32 mV (-127 to -17 dBm) External speaker GRADE AND RENGE Frequency range Measuring range : 1 kHz ±10 % : 1-100 % Frequency range Measuring range : DC-100 MHz : 0.01-10 V Imput impeadance : 10 MΩ/DC or more Measuring range : 10 mV to 10 V Input impedance : 50 kΩ/V DC or more Measuring capability : 5 A/30 A Frequency range Measuring range : 300-3000 Hz : 1-500 mV Input impedance Capacity : 8 Ω : 5 W or more M ENTERING THE ADJUSTMENT MODE q Turn the transceiver's power OFF. w Connect the JIG plug (see illustration below) to [REMOTE] jack on the rear panel. e While pushing and holding [P.AMP/ATT] and [TUNE/CALL], turn the transceiver power ON. NOTE: Exiting from the adjustment mode when the transceiver's power is OFF. [P.AMP/ATT] Front panel Rear panel KEY ACC DATA MIC GND ANT2 ANT1 [TUNER/CALL] [PWR] DC 13.8V to [REMOTE] jack Shorten the both terminals JIG plug 2-conductor 3.5 (d) mm (1⁄8″) plug M OPERATING ON THE ADJUSTMENT MODE • Enter DDS adjustment mode. : Push [F-1 (REF)] • Enter TX adjustment mode. : Push [F-2 (TX)] • Enter RX adjustment mode. : Push [F-3 (RX)] • Store the set value. : Push [F-4 (SET)] • Adjust the value. : Rotate [DIAL] CAUTION: Connect a dummy load to the antenna connectors during the transmitter adjustment, when the adjustment condition does not require a test equipment. [F-1(REF)] [F-2 (TX)] [F-3 (RX)] [F-4 (SET)] 4 - 1 [DIAL]

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2-conductor 3.5 (d) mm (
1
/
8
″
) plug
to [REMOTE] jack
Rear panel
Front panel
JIG plug
Shorten the both terminals
[P.AMP±ATT]
[TUNER±CALL]
[PWR]
KEY
ACC
DATA
MIC
ANT2
ANT1
DC 13.8V
GND
4 - 1
SECTION 4
ADJUSTMENT PROCEDURES
4-1 PREPARATION
Some adjustment must be performed on the adjustment mode.
M
REQUIRED TEST EQUIPMENT
EQUIPMENT
GRADE AND RANGE
EQUIPMENT
GRADE AND RENGE
DC power supply
Output voltage
: 13.8 V DC
Current capacity
: 30 A or more
Distortion meter
Frequency range
: 1 kHz ²10 %
Measuring range
: 1–100 %
RF power meter
(treminated type)
Measuring range
: 0.5–200 W
Frequency range
: 1.8–500 MHz
Impedance
: 50
Ω
SWR
: 1.2 : 1 or better
Oscilloscope
Frequency range
: DC–100 MHz
Measuring range
: 0.01–10 V
Digital multimeter
Imput impeadance
: 10 M
Ω
±DC or more
AC millivoltmeter
Measuring range
: 10 mV to 10 V
Frequency counter
Frequency range
: 0.1–500 MHz
Frequency accuracy : ²1 ppm or better
Sensitivity
: 100 mV or better
DC voltmeter
Input impedance
: 50 k
Ω
±V DC or more
DC ammeter
Measuring capability : 5 A±30 A
RF voltmeter
Frequency range
: 0.1–500 MHz
Measuring range
: 0.01–10 V
Audio generator
Frequency range
: 300–3000 Hz
Measuring range
: 1–500 mV
Standard signal
generator (SSG)
Frequency range
: 0.1–500 MHz
Output level
:
0.1 μV to 32 mV
(–127 to –17 dBm)
External speaker
Input impedance
: 8
Ω
Capacity
: 5 W or more
M
ENTERING THE ADJUSTMENT MODE
q
Turn the transceiver’s power OFF.
w
Connect the JIG plug (see illustration below) to [REMOTE] jack on the rear panel.
e
While pushing and holding [P.AMP±ATT] and [TUNE±CALL], turn the transceiver power ON.
NOTE:
Exiting from the adjustment mode when the transceiver's power is OFF.
M
OPERATING ON THE ADJUSTMENT MODE
• Enter DDS adjustment mode.
: Push [F-1 (REF)]
• Enter TX adjustment mode.
: Push [F-2 (TX)]
• Enter RX adjustment mode.
: Push [F-3 (RX)]
• Store the set value.
: Push [F-4 (SET)]
• Adjust the value.
: Rotate [DIAL]
CAUTION:
Connect a dummy load to the antenna con-
nectors during the transmitter adjustment,
when the adjustment condition does not re-
quire a test equipment.
[F-1(REF)]
[F-3 (RX)]
[DIAL]
[F-2 (TX)]
[F-4 (SET)]