TK-7150
37
4. Test Equipment Required for Alignment
Test Equipment Major Specifications
1. Standard Signal Generator Frequency Range 136 to 174MHz
(SSG) Modulation Frequency modulation and external modulation
Output 0.1µV to greater than 1mV
2. Power Meter Input Impedance 50Ω
Operation Frequency 136 to 174MHz or more
Measurement Capability Vicinity of 50W
3. Deviation Meter Frequency Range 136 to 174MHz
4. Digital Volt Meter Measuring Range 1 to 20V DC
(DVM) Accuracy High input impedance for minimum circuit loading
5. Oscilloscope DC through 30MHz
6. High Sensitivity Frequency Range 10Hz to 600MHz
Frequency Counter Frequency Stability 0.2ppm or less
7. Ammeter 13A or more
8. AF Volt Meter Frequency Range 50Hz to 10kHz
(AF VTVM) 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 10 to 1.5V DC or less
Input Impedance 50kΩ/V or greater
12. 4Ω Dummy Load Approx. 4Ω, 20W
13. Regulated Power Supply 13.6V, approx. 20A (adjustable from 9 to 20V)
Useful if ammeter requipped
4-3. Test Cable for Microphone input
The following test cable are recommended.
4-1. Test Cable for Speaker Output
1
3
6
5
4
Crimp terminal
(E23-0613-05)
SP OUT
SP OUT
DUMMY
4Ω/20W
SP
220µF 16WV
SP
To
AF VTVM
Distortion
meter
+
+
1
8
Cut
HOOK
(BRN)
MIC (WHT)
MICG
To
AG
AF VTVM
PTT
(YEL)
PTT
(RED)
PTT SW
Plug cord
Part No. E30-3360-08
8 pin
8 pin
1 : NC
2 : +B
3 : GND
4 : PTT/TXD1
(PC serial data
from radio)
MIC connector (Front panel view)
5 : MIC GND
6 : MIC
7 : HOOK/RXD1
(PC serial data
to radio)
8 : NC
ADJUSTMENT
4-2. Repair Jig (Chassis)
To check the voltage on the foil side of the TX-RX unit or to
adjust the PLL lock voltage, use the Repair jig (Part No. A10-
4065-02).
