Alinco DJ-162ED, Руководство по обслуживанию

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1. Transmitting Unit [DJ-162ED]
Item
Adjustment Point
Adjustment Method Spec
1. Frequency
adjustment
TC304 (RF PCB) Set the unit in the transmission mode at 145.03MHz and
adjustment TC304.
(Transceiver tester, counter) 145.03MHz ±50Hz
2. TX Power
adjustment
VR301 (RF PCB)
(Hi Power)
VR302 (RF PCB)
(Lo Power)
Adjustment VR301 so that TX power becomes 3W at
145.99MHz.
Adjustment VR302 so that TX power becomes 300mW at
145.99MHz.
3.1W±0.1W
300mW±50mW
3. Modulation degree
adjustment
VR204 (IF PCB) Input a signal of 1kHz/50mV into The Mic jack
transmitting at 145.03MHz and adjust VR204 so that you
obtain 4.7kHz/Dev in the transmission mode.
4.7kHz ±0.1 kHz
4. Subaudible tone VR203 (IF PCB) Transmit at 145.03MHz and adjust VR203 to obtain a
frequency moduration of 3.0kHz, making sure that tone
burst 1750Hz within a range of 1750Hz±20Hz. 3.0kHz ± 0.5kHz
5. DTMF. VR205 (IF PCB) Push Q] in the transmission mode and adjust VR205 so
that you obtain 3.1 kHz/Dev.
3.1 kHz ±0.1 kHz
2. Receiving Unit [DJ-162ED]
Item
Adjustment Point Adjustment Method Spec
1. VCO P/D Voltage
adjustment
L106 (VCO) Adjust L106 so that P/D Voltage is 2.0V at 145.03MHz
(DC Voltmeter) in the transmission mode.
2.0V ± 0.1V
2. Detection Coil
adjustment
L202 (IF PCB) Input 1kHz, 3.5kHz/Dev. +66dB/i at 145.03MHz and
adjust L202 so that detection power becomes maximum.
3. VHF FRONT END
adjustment
L306, L308, L309,
TC305, L311, L312
(RF PCB)
At 145.95MHz and adjust L306, L308, L309, TC305, L311,
and L312, so that 12dB SINAD sensitivity becomes
maximum.
under -9dB/i
(EMF)
4. S-meter
adjustment
VR202 (IF PCB) Input a signal of 10dB/i from transceiver tester at
145.95MHz Turn VR202 so that Full-bar begins to tight.
10dBjt±1dB/t
(EMF)
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