Adjustment Procedures; Preparation - Icom IC-T2H Service Manual

SECTION 5

5-1 PREPARATION

REQUIRED TEST EQUIPMENT
EQUIPMENT
Output voltage
DC power supply
Current capacity
Measuring range
Frequency range
RF power meter
Impedance
(terminated type)
SWR
Frequency range
Frequency accuracy : ±1 ppm or better
Frequency counter
Sensitivity
Frequency range
FM deviation meter
Measuring range
Input impedance
Digital multimeter
CONNECTIONS
FM deviation
meter
RF power meter
Frequency
counter
DC power
supply
. ,
see detailed illustration below
Power supply connection
connect (soldering)
, line here
VR board

ADJUSTMENT PROCEDURES

GRADE AND RANGE
: 9.6 V DC
: 5 A or more
: 1–10 W
: 120–300 MHz
: 50 Ω
: Less than 1.2 : 1
: 0.1–300 MHz
: 100 mV or better
: DC–300 MHz
: 0 to 5 kHz
: 10 MΩ/V DC or better
Attenuator
40 dB or 50 dB
connect (soldering) here
EQUIPMENT
Frequency range
Audio generator
Measuring range
Power attenuation
Attenuator
Capacity
Frequency range
Standard signal
Output level
generator (SSG)
DC voltmeter Input impedance
Frequency range
Oscilloscope
Measuring range
AC millivoltmeter Measuring range
5 - 1
GRADE AND RANGE
: 300–3000 Hz
: 1–500 mV
: 40 or 50 dB
: 10 W or more
: 0.1–300 MHz
: 0.1 µV–32 mV
(–127 to –17 dBm)
: 50 kΩ/V DC or better
: DC–20 MHz
: 0.01–20 V
: 10 mV–10 V
Standard signal
generator
CAUTION:
DO NOT
transmit while
an SSG is connected to
the antenna connector.
JIG connector
to the [SP] jack
68 kΩ