Adjustment - Kenwood TK-2140 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 VTVM)
9. Audio Generator (AG)
10. Distortion Meter
11. 16 Dummy Load
12. Regulated Power Supply
The following parts are required for adjustment
1. Antenna connector adapter
The antenna connector of this radio uses an SMA terminal.
Use an antenna connector adapter [SMA(f) – BNC(f) for
adjustment. (The adapter is not provided as an option, so buy
a commercially-available one.)
Note
When the antenna connector adapter touches the knob,
draw out the knob to mount the connector.
2. Universal connector
Use the interface cable (KPG-36) for PC tuning or the lead
wire with plug (E30-3287-18) and screw (N08-0535-08) for
panel tuning. Connect the plug to the universal connector of
the radio and tighten the screw.
The lead wire with plug (E30-3287-18) and screw (N08-
0535-08) terminals are as follows. Numbers are universal
connector terminal numbers.

ADJUSTMENT

Frequency Range
Modulation
Output
Input Impedance
Operation Frequency
Measurement Range
Frequency Range
Measuring Range
Input Impedance
Frequency Range
Frequency Stability
Frequency Range
Voltage Range
Frequency Range
Output
Capability
Input Level
Major Specifications
136 to 174MHz
Frequency modulation and external modulation.
-127dBm/0.1 V to greater than -47dBm/1mV
50 .
136 to 174MHz or more.
Vicinity of 10W
136 to 174MHz.
10mV to 10V DC
High input impedance for minimum circuit loading.
DC through 30MHz.
10Hz to 1000MHz.
0.2ppm or less.
5A.
50Hz to 10kHz.
1mV to 10V.
50Hz to 5kHz or more.
0 to 1V.
3% or less at 1kHz.
50mV to 10Vrms.
Approx. 16 , 3W.
5V to 10V, approx. 5A
Useful if ammeter equipped.
Caution
1. When connecting the plug to the universal connector of
the radio, a short circuit may occur. To provent this, be
sure to turn the radio POWER switch off.
2. Since the RX AF output is a BTL output, there is a DC
component. Isolate this with a capacitor or transformer as
shown in the figure.
3. Do not connct an instrument between red or black and GND.
• Universal connector
1: SSW
3: SP–
5: EMC
7: PTT
9: NC
11: 5M
13: RXD
TK-2140
2: SP+
4: MSW
6: ME
8: PF
10: E
12: TXD
14: E
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