Kenwood TK-260G, TK-270G Adjustment, Test Equipment Required for Alignment, Repair Jig Chassis

			TK-260G/270G
		ADJUSTMENT
Test Equipment Required for Alignment
	Test Equipment		Major Specifications
1.	Standard Signal Generator	Frequency Range	150 to 175MHz
	(SSG)	Modulation	Frequency modulation and external modulation.
		Output	-127dBm/0.1∝V to greater than -47dBm/1mV
2.	Power Meter	Input Impedance	50Ω.
		Operation Frequency	150 to 175MHz or more.
		Measurement Range	Vicinity of 10W
3.	Deviation Meter	Frequency Range	150 to 175MHz.
4.	Digital Volt Meter	Measuring Range	10mV to 10V DC
	(DVM)	Input Impedance	High input impedance for minimum circuit loading.
5.	Oscilloscope		DC through 30MHz.
6.	High Sensitivity	Frequency Range	10Hz to 1000MHz.
	Frequency Counter	Frequency Stability	0.2ppm or less.
7.	Ammeter		5A.
8.	AF Volt Meter	Frequency Range	50Hz to 10kHz.
	(AF VTVM)	Voltage Range	1mV to 10V.
9.	Audio Generator (AG)	Frequency Range	50Hz to 5kHz or more.
		Output	0 to 1V.
10.	Distortion Meter	Capability	3% or less at 1kHz.
		Input Level	50mV to 10Vrms.
11.	Spectrum Analyzer	Measuring Range	DC to 1GHz or more
12.	Tracking Generator	Center frequency	50kHz to 600MHz
		Output Voltage	100mV or more
13.	8Ω Dummy Load		Approx. 8Ω, 3W.
14.	Regulated Power Supply		5V to 10V, approx. 3A
			Useful if ammeter equipped.

■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) 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.

Repair Jig (Chassis)

1.Jig (chassis : Part No. A10-4009-03) for adjustment.

2.Use the jig as follows.

①Place the TX-RX unit on the jig and fix it with thirteen screws ∂ .

➁Solder the antenna terminal of the TX-RX unit.

3.Supply power from an external power supply. Relay terminal : + (7.5)

Jig (Chassis) : -

Coaxial antenna connector

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JIG

Relay terminal

(+)

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Power module

UNIT

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