Kenwood TK-290-11B Service Manual page 14

Test Equipment Required for Alignment
No. 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 16Ω Dummy Load
12 Regulated Power Supply
13 Spectrum Analyzer
14 Tracking Generator
■ The following parts are required for adjustment
1. Antenna connector adapter
The antenna connector of this radio uses an SMA termi-
nal.
Use an antenna connector adapter [SMA(f) – BNC(f) or
SMA(f) – N(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 (E30-3287-28) 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 (E30-3287-28) 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
Accuracy
Frequency Range
Frequency Stability
Frequency Range
Voltage Range
Frequency Range
Output
Capability
Input Level
Measuring Range
Center Frequency
Frequency Deviation
Output Voltage
Major Specifications
Maximum 600MHz or more.
Frequency modulation and external modulation.
–133dBm/0.05µV to 7dBm/501mV
50Ω.
Up to 600MHz.
Full scale of 10W or so.
100 to 200MHz.
FS=18V or so.
High input impedance for minimum circuit loading.
DC through 30MHz.
Up to 1GHz or so.
0.2ppm or less.
5A.
50Hz to 1MHz.
1mV to 10V.
100Hz to 100kHz or more.
0 to 1V.
3% or less at 1kHz.
50mV to 10Vrms.
Approx. 16Ω, 5W.
5V to 10V, approx. 5A
Useful if ammeter equipped.
DC to 1GHz or more.
50kHz to 600MHz.
± 35MHz.
100mV or more.
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 com-
ponent. 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-290-11B
EXT/INT RF SW
2: SP+
4: MSW
6: ME
8: PF
10: E
12: TXD
14: NC
13