Kenwood TKR-D710, Service Manual

Page: 52 / 127

TKR-D710
52
ADJUSTMENT
Test Equipment Required for Alignment
Test Equipment Major Specifi cations
1. Standard Signal Generator
(SSG)
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.
2. Power Meter
Input Impedance 50

Operation Frequency 136 to 174MHz or more
Measurement Capability Vicinity of 100W
3. Deviation Meter Frequency Range 136 to 174MHz
4. Digital Volt Meter (DVM)
Measuring Range 1V to 20V DC
Input Impedance High input impedance for minimum circuit loading
5. Oscilloscope DC through 30MHz
6. High Sensitivity
Frequency
Counter
Frequency Range 10Hz to 600MHz
Frequency Stability 0.2ppm or less
7. Ammeter 15A or more
8. AF Volt Meter (AF V.M)
Frequency Range 50Hz to 10kHz
Voltage Range 3mV to 3V
9. Audio Generator (AG)
Frequency Range 50Hz to 5kHz
Output 0 to 1V
10. Distortion Meter
Capability 3% or less at 1kHz
Input Level 50mV to 10Vrms
11. Voltmeter
Measuring Range 10V to 1.5V DC or less
Input Impedance 50k

/V or greater
12. 4

Dummy Load Approx. 4

, 5W
8 1
MIC connector (Front panel view)
Test cable for microphone input (E30-3360-28)
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
Lead wire +
MIC
Shield wire –
Tuning cable (E30-3383-05)
Adapter cable (E30-3383-05) is required for inject-
ing an audio if PC tuning is used.
See “PC Mode” section for the connection.
3
2
4
5
6
7
8
3
1
2
4
5
6
7
8
1
GREEN
RED
BLACK
BLUE
SHIELD
WHITE
GRAY
YELLOW
PTT
E
MIC-E
MIC
HK
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.