Alinco DJ-500E, Руководство по обслуживанию

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■ ADJUSTMENT
Item
Adjustment Point
Adjustment Method
Spec
5 V line voltage
VR605
Turn VR605 so that the voltage of 16 pin of
IC601 should be 5.1 V.
5.1 V±0.1 V
VCO P/D voltage L401 (RX VCO)
Adjust L401 so that the voltage of C362 (+ ) is
1.5 V ± 0 .3 V
(VHF)
1.5 V.
(145 MHz)
L501 (TX VCO)
(VHF)
Adjust L501 so that the voltage of C362 (+ ) is
2.0 V.
2.0 V ±0.3 V
L406 (RX VCO)
(DJ-500E)
1.1 V ±0.2 V
(UHF)
Adjust L406 so that the voltage of C343 (+ ) is
1.1 V.
(DJ-500T)
Adjust L406 so that the voltage of C343 (+ ) is
1.9 V.
(435.0 MHz)
1.9 V ± 0 .2 V
(445.0 MHz)
L504 (TX VCO)
(UHF)
(DJ-500E)
Adjust L504 so that the voltage of C343 (+ ) is
2.1 V.
(DJ-500T)
Adjust L504 so that the voltage of C343 (+ ) is
3.0 V.
2.1 V±0.3 V
3.0 V ±0.3 V
Frequency TC209 Set the unit in the transmission mode at
435 MHz (DJ-500T: 445 MHz) and adjust
TC209.
435 MHz
±500 Hz
(445 MHz
±500 Hz)
VHF power output VR201 On “HI” position, turn VR201 for 6.6 W output
at 145.0 MHz 13.0 V.
6.5 W ±0.5 W
VR204
On “LO" position, turn VR204 for 0.6 W output
at 145.0 MHz 13.0 V.
0.5 W±0.1 W
UHF power output VR202
On “HI” position, turn VR202 for 5.6 W output
at 435 MHz 13.0 V (DJ-500T: 445 MHz
13.0 V)
5.5 W ± 0 .3 W
VR203
On “LO” position, turn VR203 for 0.6 W output
at 435 MHz 13.0 V (DJ-500T: 445 MHz
13.0 V)
0.5 W±0.1 W
VHF deviation
VR604
Input a signal of 1 kHz/50 mV into the Mic jack
and adjust VR604 so that you obtain 4.8 kHz/
Dev in the transmission mode.
4.8 kHz
±0.2 kHz
UHF deviation
VR601
Input a signal of 1 kHz/50 mV into the Mic jack
and adjust VR601 so that you obtain 4.8 kHz/
Dev in the transmission mode.
4.8 kHz
±0.2 kHz
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