Preparation - Icom IC-T70A Service Manual

SECTION 5. .

5-1 PREPARATION

¤ REQUIRED EQUIPMENTS
EQUIPMENT
DC cable OPC–254L (Optional product)
Measuring range
RF power meter
Frequency range
(50 terminated)
SWR
Modulation Frequency range
analyzer Measuring range
AC millivoltmeter Measuring range
Ammeter Measuring range
Audio generator Frequency range
(AG) Output level
¤ JIG CABLES
• JIG CABLE #1
(SP)
3-conductor 3.5 (d) mm plug
• JIG CABLE #2
3-conductor 2.5 (d) mm
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ADJUSTMENT PROCEDURE
GRADE AND RANGE
: 0.1–10 W
: 100–600 MHz
: Less than 1.2 : 1
: 30–600 MHz
: 0 to ±10 kHz
: 10 mV to 10 V
: 10 mA to 3 A
: 300–3000 Hz
: 1–500 mV
(GND)
82 kΩ
(REMOTE)
AUDIO GENERATOR
(300–3000 Hz/1–500 mV)
(GND)
plug
+
(MIC)
4.7 μF
EQUIPMENT
JIG cable See the page 5-1.
Frequency range
Frequency counter Frequency accuracy : ±1 ppm or better
Input level
Frequency range
Standard signal
Output level
generator (SSG)
Power attenuation
Attenuator
Capacity
Voltage meter Measuring range
SETTING;
Frequency : 1 kHz
Level
+ −
Waveform : Sine wave
5 - 1
GRADE AND RANGE
: 0.1–600 MHz
: Less than 1 mW
: 0.1–600 MHz
: –20 dBμ to 90 dBμ
(–127 to –17 dBm)
: 30 dB
: More than 6.0 W
: 5–20 V
AC
MILLIVOLTMETER
(10 mV to 10 V)
: 150 mVrms
+ −