Panasonic KX-TCD410RUT / KX-A141RUT / KX-TCD412RUT / KX-A142RUT Service Manual ▷ View online
15.2. Adjustment Standard (Handset)
When connecting the Simulator Equipments for checking, please refer to below.
C54
R23
R24
D1
C63
C66
C62
C65
C14
TP1
TP2
PbF
SP
SP
C2
C15
L2
L3
D7
D3
D5
C10
R17
C12
R11
R16
C22
C30
C8
C3
C26
C28
C29
C6
R8
D2
D4
C16
C17
R12
R22
Q3
Q2
R4
C7
C4
C5
C33
MIC
R5
R7
R1
D6
C11
R20
R2
R3
C21
C25
R19
D5
IC1
IC2
100
80
30
F1
50
5
8
4
1
1
R18
C27
TP18
C20
C23
C18
L5
L4
R21
R6
C24
X1
Q1
C31
TP19
TP13
TP17
TP14
TP16
TP12
TP3
TP4
TP10
BAT
GND
SCL
SDA
C57
C64
C56
C55
11
18
1
28
IC3
C60
DECT tester
CMD60
CMD60
(I) (J) (K) (L) (M)
(N) (O) (P)
(N) (O) (P)
Frequency
Counter
(H)
Digital
Volt Meter
(A)
Digital
Volt Meter
(B)
(C) (E) (F) (H) (I) (O) (P)
DC
6V
Oscilloscope
Current
Probe
(D) (E)
(D)
(D)
TP5
TP6
TP7
TP8
DC
2.20V ~ 2.40V
(F) (G)
To PC (JIG)
AF SG
(DECT TESTER CMD60)
AF Volt Meter
(DECT TESTER CMD60)
Note:
(A) - (P) is refered to ADJUSTMENTS (HANDSET) (P.46)
KX
-T
CD4
10RUT
/
K
X
-A1
41RUT
41RUT
/
K
X
-T
C
D412R
UT
/
K
X
-A142R
UT
49
16 RF SPECIFICATION
16.1. Base Unit
Item
Value
Refer to -. *
Remarks
TX Power
More than 20 dBm ~ 25 dBm
Adjustment (Base Unit) (H)
Modulation
340 kHz/div ~ 402 kHz/div
Adjustment (Base Unit) (I)
Data type: Fig31
Frequency Offset
-40 kHz ~ +40 kHz
Adjustment (Base Unit) (J)
RX Sensitivity
< 1000 ppm
Adjustment (Base Unit) (K)
Timing Accuracy
< ± 5.0 ppm
Adjustment (Base Unit) (L)
RSSI Level
0x34 hex ± A hex
Adjustment (Base Unit) (M)
* : Refer to Adjustment (Base Unit) (P.39)
16.2. Handset
Item
Value
Refer to -. **
Remarks
TX Power
More than 20 dBm ~ 25 dBm
Adjustment (Base Unit) (I)
Modulation
340 kHz/div ~ 402 kHz/div
Adjustment (Base Unit) (J)
Data type: Fig31
Frequency Offset
-40 kHz ~ +40 kHz
Adjustment (Base Unit) (K)
RX Sensitivity
< 1000 ppm
Adjustment (Base Unit) (L)
Timing Accuracy
< ± 10 ppm
Adjustment (Base Unit) (M)
RSSI Level
0x34 hex ± A hex
Adjustment (Base Unit) (N)
** : Refer to Adjustment (P.46)
17 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.
50
KX-TCD410RUT / KX-A141RUT / KX-TCD412R UT / KX-A142RUT
18 FREQUENCY TABLE (MHz)
BASE UNIT
HANDSET
Channel No
Transmit Frequency
Receive Frequency
Transmit Frequency
Receive Frequency
1
1897.344
1897.344
1897.344
1897.344
2
1895.616
1895.616
1895.616
1895.616
3
1893.888
1893.888
1893.888
1893.888
4
1892.160
1892.160
1892.160
1892.160
5
1890.432
1890.432
1890.432
1890.432
6
1888.704
1888.704
1888.704
1888.704
7
1886.976
1886.976
1886.976
1886.976
8
1885.248
1885.248
1885.248
1885.248
9
1883.520
1883.520
1883.520
1883.520
10
1881.792
1881.792
1881.792
1881.792
Note:
Channel No. 10: In the Test Mode on Base Unit and Handset.
51
KX-TCD410RUT / KX-A141RUT / KX-TCD412R UT / KX-A142RUT
19 BLOCK DIAGRAM (BASE UNIT)
Audio
A/D
D/A
Analog
Front End
Front End
LED
CPU
BBIC
IC2
HOOK
RXAF
TXAF
DSP
BMC
Speech Encoding
Speech Decoding
RF
Interface
Interface
Burst Building
Burst Decoding
ADPCM
Codec Filter
Codec Filter
EEPROM
IC1
SDA
SCL
SYRI
RSSI
SYEN
RXDA
TXDA
J2
J1
IC3
4.0V
Reg.
Reg.
2.65V
Reg.
Reg.
4.0V
2.65V
VUNREG
40
41
28
24
24
61
9
6
6
30
11
11
63
64
64
6
5
6
4
RF Module
20
30
10
33
CHARGE
CONTACT
CONTACT
18
16
XTAL
X1
10.368
MHz
MHz
DTXAF
DTXAF
27
26
Bell/Caller ID
Interface
Interface
ANT1
ANT2
ANT2
to Tel_Line
A
B
A
B
to AC Adaptor
Limit
Register
Register
Bridge Rect
D2
Hook Switch
Q2, Q3
KX-TCD410RUT&412RUT BLOCK DIAGRAM (BASE UNIT)
A0...A18 D0...D7 30
IC4
Flash PROM
DATA
CTRL
ADDRESS
KX
-T
CD4
10RUT
/
K
X
-A1
41RUT
41RUT
/
K
X
-T
C
D412R
UT
/
K
X
-A142R
UT
52
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