Kenwood TKR-740 Service Manual page 68

Test Equipment Required for Alignment
No. Test Equipment
1. Standard Signal Generator
(SSG)
2. Pow er M eter
3. Deviation M eter
4. Digital Volt M eter
5. Oscilloscope
6. High Sensitivity
Frequency Counter
7. Ammeter
8. AF Volt M eter
(AF VTVM )
9. Audio Generator(AG)
10. Distortion M eter
11. Voltmeter
12. 4Ω Dummy Load
The Follow ing Parts are Required for Adjustment
• Test cable for local microphone
No. Terminal name & Description
1 NC
2 +B
3 GND
4 PTT/TXD1(PC serial data from radio)
5 M IC G
6 M IC
7 HOOK/RXD1(PC serial data to radio)
8 NC
ADJUSTMENT
Frequency Range
M odulation
Output
Input Impedance
Operation Frequency
M easurement Capability
Frequency Range
M easuring Range
Accuracy
Frequency Range
Frequency Stability
Frequency Range
Voltage Range
Frequency Range
Output
Capability
Input Level
M easuring Range
Input Impedance
MIC connector
front PANEL view
M ajor Specifications
136 to 174M Hz.
Frequency modulation and external modulation.
0.1µV to greater than 1mV.
50Ω.
136 to 174M Hz or more.
Vicinity of 50W.
136 to 174M Hz.
1 to 20V DC.
High input impedance for minimum circuit loading.
DC through 30M Hz.
10Hz to 600M Hz.
0.2ppm or less.
10A or more.
50Hz to 10kHz.
3mV to 3V.
50Hz to 5kHz.
0 to 1V.
3% or less at 1kHz.
50mV to 10Vrms.
10 to 1.5V DC or less.
50kΩ/V or greater.
Approx. 4Ω, 5W
• The following test cables are recommended
Test cable for Microphone input.
TKR-740
69