Adjustment Procedures; Preparation - Icom IC-2800 Service Manual

SECTION 5 ADJUSTMENT PROCEDURES

5-1 PREPARATION

All adjustments in this section must be performed on wide bandwidth condition unless specified otherwise.
(Narrow bandwidth is selectable for Europe and Italy vertions only.)
' ' REQUIRED TEST EQUIPMENT
EQUIPMENT
Output voltage
DC power supply
Current capacity
Measuring range
RF power meter Frequency range
(terminated type) Impedance
SWR
Frequency range
Frequency counter Frequency accuracy : ±1 ppm or better
Sensitivity
Frequency range
FM deviation meter
Measuring range
DC voltmeter Input impedance
' ' CONNECTION
FM DEVIATION ATTENUATOR
METER 50 dB or 60 dB
RF POWER METER
50 Ω, 1–80 W
STANDARD SIGNAL GENERATOR
0.1–600 MHz
–127 to –17 dBm (0.1 µV to 32 mV)
CAUTION!
DO NOT transmit
while an SSG is
connected to the
antenna connector.
.
AUDIO GENERATOR
300 Hz to 3 kHz
+
pin 7 (GND)
pin 4 (PTT)
to the microphone connector
GRADE AND RANGE
: 13.8 V DC
: 20 A or more
: 1–80 W
: 100–600 MHz
: 50 Ω
: Less than 1.2 : 1
: 0.1–600 MHz
: 100 mV or better
: 30–600 MHz
: 0 to ±10 kHz
: 50 kΩ/V DC or better
EQUIPMENT
Frequency range
Audio generator
Measuring range
Frequency range
Standard signal
Output level
generator (SSG)
Frequency range
Oscilloscope
Measuring range
AC millivoltmeter Measuring range
Input impedance
External speaker
Capacity
Power attenuation
Attenuator
Capacity
5 - 1
GRADE AND RANGE
: 300–3000 Hz
: 1–500 mV
: 0.1–600 MHz
: 0.1 µV–32 mV
(–127 to –17 dBm)
: DC–20 MHz
: 0.01–20 V
: 10 mV–10 V
: 8 Ω
: 4 W or more
: 50 or 60 dB
: 100 W or more
POWER SUPPLY
13.8 V, 20 A or more
Controller unit