Adjustment; Test Equipment Required For Alignment; Test Cable For Microphone Input (E30-3360-28); Mic Connector (Front Panel View) - Kenwood NXR-710 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 V.M)
9. Audio Generator (AG)
10. Distortion Meter
11. Voltmeter
12. 4Ω Dummy Load

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)

8 1
1: NC
2: SB
3: GND
4: PTT/TXD
(PC serial data from transceiver)
5: MIC GND
6: MIC
7: HOOK/RXD
(PC serial data to transceiver)
8: NC

ADJUSTMENT

Frequency Range 136 to 174MHz
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 50Ω
Operation Frequency 136 to 174MHz or more
Measurement Capability Vicinity of 100W
Frequency Range 136 to 174MHz
Measuring Range 1V to 20V DC
Input Impedance High input impedance for minimum circuit loading
DC through 30MHz
Frequency Range 10Hz to 600MHz
Frequency Stability 0.2ppm or less
15A or more
Frequency Range 50Hz to 10kHz
Voltage Range 3mV to 3V
Frequency Range 50Hz to 5kHz
Output 0 to 1V
Capability 3% or less at 1kHz
Input Level 50mV to 10Vrms
Measuring Range 10V to 1.5V DC or less
Input Impedance 50kΩ/V or greater
Approx. 4Ω, 5W
1
2
E
3
PTT
4
MIC-E
5
MIC
6
HK
7
8
Major Specifi cations
Tuning cable (E30-3383-05)
Adapter cable (E30-3383-05) is required for
injecting an audio if PC tuning is used.
See "PC Mode" section for the connection.
Flat cable (36-pin) about 256mm
To connect the Control unit (CN38) to the TX-RX unit
(CN800) while in servicing, you can use the 36-pin fl at cable,
E37-0979-05, which is available from the KENWOOD parts
center.
NXR-710
Lead wire +
Shield wire –
MIC
39