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Adjustment
Test
Items
Mode
(A
Battery Low
)
Confirmation
(B
TX VCO
)
Adjustment
(C
RX VCO
)
Confirmation
(D
TX Frequency
)
Adjustment
(E
TX Power
)
Confirmation
(F) RX
Sensitivity
Confirmation
(2nd IF
output)
(G
Noise
)
Squelch
Confirmation
(H
Speaker
)
Output Level
Confirmation
(I) Mic
Modulation
Factor
Confirmation
(J) Data
Modulation
Confirmation
The connections of adjustment equipment are as shown in
SSG Frequency: 46.670 MHz
12.4. Adjustment Standard (Handset)
When connecting the Simulator and Equipments for checking, please refer to the illustration
below.
(Component View)
Adjustment
Point
1. Apply 3.50V between BATT(+) and BATT(-).
3ch
-
2. Confirm that there is no flashing of RECHARGE LED.
Talk
3. Apply 3.40V between BATT(+) and BATT(-).
4. Confirm that there is flashing of RECHARGE LED.
1. Adjust T6 so that the reading of the Digital Voltmeter is 1.5V ± 0.2V.
3ch
T6
Talk
1. Set S2 to RX VCO side.
3ch
-
2. The reading of the Digital Voltmeter is 0.8V ~ 3.0V.
Talk
(After adjusting, set S2 to OFF).
-
3ch
VC1
Talk
-
3ch
-
Talk
1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. 0KHz).
3ch
T3
2. Confirm 2nd IF output so that the reading of RF VTVM is more than 15mV.
Talk
1. Measure the SSG output level when the noise squelch changes from Low to
3ch
-
High. (modulation frequency 1KHz, dev.3kHz)
Talk
2. Confirm that the SSG output level is -105dBm.
1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. 3KHz).
3ch
-
2. Confirm that SP output level is more than 60mV.
Talk
(distortion: less than 5%) (volume High).
1. Apply a MIC signal (1KHz, 2.4mV at 600
3ch
-
2. Confirmation so that the reading FM Deviation Meter is 2.0KHz ± 0.5KHz.
Talk
-
3ch
-
Talk
Confirm so that the reading of the frequency counter is 49.860MHz ± 100Hz.
Confirm output level should be over -2dBm on RF VTVM (50
Confirm for 4.0KHz ~ 6.0KHz FM Deviation Meter reading.
Adjustment Standard (Handset)
27
Procedure
load).
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