Panasonic KX-TC1200NLB, Service Manual

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Adjustment
Items
Test
Mode
Adjustment
Point
Procedure
(A
)
Battery Low
Confirmation
3ch
Talk -
1. Adjust the power supply voltage to DC3.60V,and confirm so that the reading of
oscillosope is High.
2. Adjust that power supply voltage to DC 3.40V, and confirm so that the reading of
oscilloscope is Low.
(B
)
TX VCO
Voltage
3ch
Talk T6
1. Adjust T6 so that the reading of the Digital Voltmeter is 1.0V ± 0.1V.
(C
)
RX VCO
Confirmation
3ch
Talk -
-
Confirm RX VCO voltage so that the reading of the Digital Voltmeter is 2.9V ±
0.5V.
(D
)
TX Frequency
Adjustment
3ch
Talk VC1
-
Confirm so that the reading of the frequency counter is 39.9875MHz ± 0.1KHz.
(E
)
TX Power
Adjustment
3ch
Talk T5
-
Output level should be over 9.0mW ± 0.2mW on RF VTVM (50 load).
(F) RX
Sensitivity
Confirmation
(2nd IF
output)
3ch
Talk T3
1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. 0KHz).
2. Confirm 2nd IF output so that the reading of RF VTVM is more than 15mV.
(G
)
Noise
Squelch
Confirmation
3ch
Talk -
1. ...Measure the SSG output level when the noise squelch changes from Low to
High. (modulation frequency 1KHz, dev.3kHz)
2. Confirm that the SSG output level is -105dBm.
(H
)
Speaker
Output Level
confirmation
3ch
Talk -
1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. 3KHz).
2. Confirm that SP output level is 100mV ± 10mV.
(distortion: less than 7%) (volume High).
(I) Mic
Modulation
Factor
Confirmation
3ch
Talk -
1. Apply a MIC signal (1KHz, 2.4mV at 600 load).
2. Confirmation so that the reading FM Deviation Meter is 3.0KHz ± 0.3KHz.
(J) Data
Modulation
Confirmation
3ch
Talk -
-
Confirm for 4.0KHz ~ 8.0KHz FM Deviation Meter reading.
The connections of adjustment equipment are as shown in Adjustment Standard (Handset) ().
SSG Frequency: 31.0875 MHz
9.4. Adjustment Standard (Handset)
(Component View)
Note: (A) - (I) is refered to ADJUSTMENTS (HANDSET) ()
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