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Model
KX-TC1205RUB KX-TC1205RUW KX-TC1205RUS KX-TC1205RUF
Pages
69
Size
1.76 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / TELEPHONE EQUIPMENT
File
kx-tc1205rub-kx-tc1205ruw-kx-tc1205rus-kx-tc1205ru.pdf
Date
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(Flow Solder Side View)
TXPOWER
TXGND
50
Ω
FM Deviation
Meter
Audio
Analyzer
Frequency
Counter
RF Millivolt 
Meter
(I), (J)
(D)
(E)
SSG
43.820MHz
DC Volt Meter
(B)
TX VCO
RF 
Volt Meter
(F)
DC Power 
Supply
DC Volt Meter
(C)
RX VCO
IC1
Note: (A) - (I) is refered to ADJUSTMENTS (HANDSET) (P.26)
KX-
TC120
5RUB
/
KX-TC
1205R
U
W
/
KX-TC
1205R
US
/
KX-
TC120
5RUF
29
10 RF SPECIFICATION
10.1. Base Unit
Item
Value
Refer to -.*
Remarks
TX Frequency
30.175 MHz ± 0.1kHz
ADJUSTMENTS (BASE UNIT) (C)
at CH3
TX Power
8mW (3CH)
ADJUSTMENTS (BASE UNIT) (D)
at CH3
Line Modulation factor
2.8 kHz~3.4 kHz
ADJUSTMENTS (BASE UNIT) (G)
Line Modulation factor (Max.)
4.5 kHz~8.5 kHz
—
Data Modulation factor
3 kHz~7 kHz
—
Line Output level
80mV ± 20mV
—
*: Refer to Adjustment (P.24).
10.2. Handset
Item
Value
Refer to -.**
Remarks
TX Frequency
39.875 MHz ± 0.1kHz
ADJUSTMENTS (HANDSET) (D)
at CH3
TX Power
4mW (3CH)
ADJUSTMENTS (HANDSET) (E)
at CH3 (Antenna
soldering point 50
Ω
Load)
Data Modulation factor
4.0 kHz/dev~8.0 kHz/dev
ADJUSTMENTS (HANDSET) (J)
at CH3
MIC Modulation factor
1.5 kHz/dev~0.3 kHz/dev
ADJUSTMENTS (HANDSET) (I)
at CH3 (MIC terminal
2.4mV Input)
SP Output level
120mV ± 30mV
—
**: Refer to Adjustment (P.27).
11 HOW TO CHECK THE HANDSET SPEAKER
 1. Prepare the digital voltmeter, and set the selector knob to ohm meter.
 2. Put the probes at the speaker terminals as shown below.
30
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
12 FREQUENCY TABLE (MHz)
BASE UNIT
PORTABLE UNIT
Channel
Transmit Frequency
Receive Frequency
Transmit Frequency
Receive Frequency
1
30.0750
39.7750
39.7750
30.0750
2
30.1250
39.8250
39.8250
30.1250
3
30.1750
39.8750
39.8750
30.1750
4
30.2250
39.9250
39.9250
30.2250
5
30.2750
39.9750
39.9750
30.2750
6
30.1000
39.8000
39.8000
30.1000
7
30.1500
39.8500
39.8500
30.1500
8
30.2000
39.9000
39.9000
30.2000
9
30.2500
39.9500
39.9500
30.2500
10
30.3000
40.0000
40.0000
30.3000
31
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
13 EXPLANATION OF CPU DATA COMMUNICATION
13.1. STAND-BY -> TALK, TALK -> STAND-BY
*: The channel is changed if the noise interferes with the conversation.
32
KX-TC1205RUB / KX-TC1205R UW / KX-TC1205R US / KX-TC1205RUF
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