Adjustment
Items
Test
Mode
Adjustment
Point
*Procedure
(A
)
RX VCO
Confirmation
3ch
Talk
-
-
Confirm so that the reading of the Digital Voltmeter is 1.5V ± 0.5V.
(B
)
TX VCO
Adjustment
3ch
Talk
T6
-
Adjust T6 so that the reading of the Digital Voltmeter is 0.8V ± 0.1V.
(C
)
TX Frequency
Adjustment
3ch
Talk
VC1
-
Adjustment VC1so that the reading of the frequency counter is 31.0875MHz ±
0.1KHz.
(D
)
TX Power
Adjustment
3ch
Talk
T5
-
Adjust T5 so that the reading of the RF VTVM is 9.0mW ± 0.2mW.
(E
)
RX
Sensitivity
Confirmation
(2nd IF
output)
3ch
Talk
T2
1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. 0KHz).
2. Confirm that the reading of RF VTVM is the maximum value (more than 20mV)
(F) Line Output
Level
Confirmation
3ch
Talk
-
1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. 3KHz).
2. Confirm that the reading of AF VTVM is 300mV ± 40mV (600 load).
(G
)
Line Input
Modulation
Confirmation
3ch
Talk
-
1. Input via loop simulator 1.0KHz, 55mV (measured at T-R) signal.
2. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. 0KHz).
3. Confirm so that the reading of FM Deviation Meter is 3.1KHz ± 0.3KHz.
(H
)
Noise
Squelch
Confirmation
3ch
Talk
-
1. Measure the SSG output level when the noise squelch changes from Low to
High.
2. Confirm that the SSG output level is -105dBm ~ -110dBm.
* : The connection of adjustment equipment are as shown in
Adjustment Standard (Base Unit)
().
SSG Frequency: 39.9875 MHz
8.4. Adjustment Standard (Base Unit)
Note: (A) - (H) is refered to
ADJUSTMENTS (BASE UNIT)
()
9. ADJUSTMENTS (HANDSET)
If your unit have below symptoms, adjust or confirm each item using remedy column from the
20
Summary of Contents for KX-TC1200NLB
Page 3: ...2 BATTERY REPLACEMENT 3 LOCATION OF CONTROLS 3 1 Base Unit 3 ...
Page 4: ...3 2 Handset 4 ...
Page 5: ...4 CONNECTION 5 ...
Page 7: ...5 2 Answering Calls 5 3 Storing Phone Numbers in Memory 7 ...
Page 8: ...5 4 Storing a Phone Number in the DIRECT Button 5 5 Dialing a Stored Number 8 ...
Page 9: ...5 6 Dialing a Stored Number in the DIRECT Button 5 7 Recall Button 9 ...
Page 10: ...6 DISASSEMBLY INSTRUCTIONS 10 ...
Page 25: ...25 ...
Page 27: ... The channel is changed if the noise interferes with the conversation 13 2 Ringing 27 ...
Page 28: ...13 3 Changing the Channel 28 ...
Page 38: ...Fig 4 Fig 5 38 ...
Page 40: ...19 CPU DATA Handset 19 1 IC2 40 ...
Page 41: ...20 HOW TO REPLACE FLAT PACKAGE IC 20 1 Preparation SOLDER 41 ...
Page 44: ...22 CABINET AND ELECTRICAL PARTS LOCATION HANDET 44 ...
Page 45: ...23 ACCESSORIES AND PACKING MATERIALS 45 ...
Page 61: ...IC5 KX TC1200NLB CIRCUIT BOARD Component View Base Unit ...
Page 63: ...IC2 150Ω AF Volt Meter H Oscilloscope G Noise Squelch A Battery Low 47µF AF Generator ...