Test Equipment Required For Alignment; Test Cable For Microphone Input; Mic Connector (Front Panel View); Tuning Cable - Kenwood NX-720 Service Manual

Test Equipment Required for Alignment

Test Equipment
1. Standard Signal Generator
(SSG)
2. Power Meter
3. Deviation Meter
4. Digital Volt Meter (DVM)
5. Oscilloscope
6. High Sensitivity
Frequency Counter
7. Ammeter
8. AF Volt Meter (AF VM)
9. Audio Generator (AG)
10. Distortion Meter
11. 4 Dummy Load
12. Regulated Power Supply
13. Spectrum Analyzer
14. Tracking Generator
*The test equipment which is not used for adjustment is contained in this table.
■ Test cable for microphone input (E30-3360-28)
GREEN
1
RED
2
BLACK
3
BLUE
4
SHIELD
5
WHITE
6
GRAY
7
YELLOW
8

■ MIC connector (Front panel view)

1 : MBL
2 : +B
8
3 : GND
4 : PTT/TXD (PC serial data from radio)
5 : MICE
6 : MIC
1
7 : HOOK/RXD (PC serial data to radio)
8 : DM
ADJUSTMENT
Frequency Range 100 to 520MHz
Modulation Frequency modulation and external modulation
Output –127dBm/0.1µV to greater than –20dBm/22.4mV
When performing the Frequency adjustment, the following accuracy is necessary.
• 0.003ppm
Use a standard oscillator for adjustments, if necessary.
Input Impedance 50
Operation Frequency 100 to 520MHz
Measurement Capability Vicinity of 100W
Frequency Range 100 to 520MHz
Measuring Range 10mV to 20V DC
Input Impedance High input impedance for minimum circuit loading
DC through 30MHz
Frequency Range 10Hz to 1000MHz
Frequency Stability 0.01ppm or less
20A or more
Frequency Range 50Hz to 10kHz
Voltage Range 1mV to 10V
Frequency Range 50Hz to 5kHz or more
Output 0 to 1V
Capability 3% or less at 1kHz
Input Level 50mV to 10Vrms
Approx. 4, 10W
13.2V, approx.20A (adjustable from 9V to 17V)
Useful if ammeter equipped
Frequency Range 40MHz to 520MHz
Input Level Up to +20dBm
Input Sensitivity –100dBm
Resolution Bandwidth 100Hz
Video Bandwidth 100Hz
Frequency Range 40MHz to 520MHz
Output Level –30dBm to 0dBm
1
2
E
3
PTT
4
MIC-E
5
MIC
6
HK
7
8
NX-720(G)/720
Major Specifi cations
■
Tuning cable (E30-3383-05 or E30-7754-05)
Adapter cable (E30-3383-05 or E30-7754-05) is required for
injecting an audio if PC tuning is used.
See "PC Mode" section for the connection.
Illust is E30-3383-05.
Lead wire +
Shield wire –
MIC
41