Icom IC-UR8050 - Adjustment Procedures; Preparation

3 - 1
J9 [ ACC (1) ] socket (Rear panel view)
5167
13
1419
37
33
20
Pin 6 DI
Pin 14 GND
Pin 14 GND
Pin 7 GNDPin 7 GND
Pin 33 LI
Pin 5 DO
Pin 13 LO
600 Ω600 Ω
Audio generator
AC millivoltmeter
Audio generator
AC millivoltmeter
RX
ANT
TX
ANT
IC-UR8050
(TOP view)
VOL
SQL
MIC
TX UNIT
RX
UNIT
FRONT UNIT
PA UNIT
LOGIC UNIT
DC power supply
9 – 16 V/20 A
RF power meter
100 W/50 Ω
Attenuator
50 dB or 60 dB
FM deviation
meter
Frequency counter
Standard signal
generator
Oscilloscope
DC POWER
SOCKET
REG
BOARD
J5
1
2
3
GND
MOD
Audio generator
P1
■ CONNECTION
3-1 PREPARATION
■ REQUIRED TEST EQUIPMENT
EQUIPMENT
DC power supply
RF power meter
(terminated type)
Frequency counter
FM deviation meter
Audio generator (AG)
GRADE AND RANGE
Output voltage : 9–16 V DC
Current capacity : 20 A or more
Measuring range : 1–100 W
Frequency range : 300–600 MHz
Impedance : 50 Ω
SWR : Less than 1.2 : 1
Frequency range : 0.1–600 MHz
Frequency accuracy : ±1 ppm or better
Sensitivity : 100 mV or better
Frequency range : 30–600 MHz
Measuring range : 0 to 10 kHz
Frequency range : 300–3000 Hz
Measuring range : 1–500 mV
EQUIPMENT
Standard signal
generator (SSG)
Oscilloscope
DC voltmeter
AC millivoltmeter
Digital multimeter
Attenuator
Terminator
GRADE AND RANGE
Frequency range : 300–600 MHz
Output level : 0.1 µV–32 mV
(–127 to –17 dBm)
Frequency range : DC–20 MHz
Measuring range : 0.01–20 V
Input impedance : 50 kΩ/V DC or better
Measuring range : 10 mV–10 V
Input impedance : 10 MΩ/V DC or better
Power attenuation : 50 or 60 dB
Capacity : 100 W or more
Impedance : 50 Ω
Capacity : 100 W or more
Impedance : 600 Ω dummy
CW: Clockwise CCW: Counterclockwise
SECTION 3 ADJUSTMENT PROCEDURES