Panasonic KX-TCD205RU / KX-TCD207RU / KX-TCA120RU Service Manual ▷ View online
Items
Check
Point
Procedure
Check or
Replace Parts
(G)* Charge Detection (OFF)
Check
-
1.
Stop supplying 6V to CHARGE(+) and CHARGE(-).
2.
Execute the command “Backloff” then “charge”.
3.
Confirm that the returned value is 0x00 (hex).
IC1, Q4, Q5,
Q9 D6, D7,
L4, L5, C119,
C120, R5, R6,
R7, R72, F1
(H)*
Battery Monitor Check
-
1.
Apply 2.25V between BATT and GND.
2.
Execute the command “readbatt”.
It assumes that the return value is XX.
a) 1E
XX
2C: No need to adjust
b) XX: 18 ~ 1D: Need to adjust
XX: 2D ~ 32: Need to adjust
Write AD value of 2.25V to EEPROM.
ex) read data: XX = 1D, write data: YY = 1D
read data: XX = 2D, write data: YY = 2D
EEPROM = 0X0004(Low Voltage) write “YY”, then
EEPROM = 0X0005(No Voltage) write “YY - 1D”
EEPROM = 0X000A(Low Voltage BL) write “YY - 06”
No Voltage writing data limit is ‘00’.
c) XX: 00 ~ 17: Reject
XX: 33 ~ FF: Reject
IC1, F1, C1
C3, C118
(I)
Battery Low
Confirmation
-
1.
Apply 2.40V between BATTERY(+) and BATTERY(-).
2.
Confirm that there is no flashing of Battery Icon.
3.
Apply 2.25V ± 0.08V between BATTERY(+) and BATTERY(-).
4.
Confirm that there is flashing of Battery Icon.
IC1, F1, C1
C3, C118
(J)* BBIC Clock Adjustment
CLK
1.
Apply 2.6V between BATTERY(+) and BATTERY(-) with DC power.
2.
Execute the command “conttx”.
3.
Input Command “rdeeprom 00 01 01”, then you can confirm the current value.
4.
Adjust the frequency of CLK executing the command “setfreq xx (where xx is
the value)” so that the reading of the frequency counter is 10.368000MHz ±
10Hz.
the value)” so that the reading of the frequency counter is 10.368000MHz ±
10Hz.
Note:
CLK is displayed only for a few seconds when executing the command “conttx”
after battery is inserted.
after battery is inserted.
IC1, X1, CN6,
C7, R54, C62
(K)*
Transmitted Power
Confirmation
-
Remove the Antenna before starting step from 1 to 4.
1.
1.
Configure the DECT tester (CMD60) as follows;
<Setting>
•
Test mode: PP
•
RFPI: 0102030405
•
Traffic Carrier: 5
•
Traffic Slot: 4
•
Mode: Loopback
•
RF LEVEL = -70dBm
2.
Execute the command “regcmd60 01 02 03 04 05".
3.
Initiate connection from DECT tester.
4.
Confirm that the NTP value at A201 is 20dBm ~ 25dBm.
IC1, R54, C62,
C123, C60,
C63, C45,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C55, CN6
(L)*
Modulation Check and
Adjustment
-
Follow steps 1 to 3 of (K).
4. Confirm that the B-Field Modulation is -350 ~ -400/+320 ~ +370kHz/div using
data type Fig 31.
data type Fig 31.
5. Adjust the B-Field Modulation if required. (Execute the command “Readmod”
and “wrtmod xx”, where xx is the value.)
and “wrtmod xx”, where xx is the value.)
IC1, R54, C62,
C123, C60,
C63, C45,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C55, CN6
49
KX-TCD205RU / KX-TCD207R U / KX-TCA120RU
Items
Check
Point
Procedure
Check or
Replace Parts
(M)
Frequency Offset
Confirmation
-
Follow steps 1 to 3 of (K).
4. Confirm that the frequency Offset is < ± 45kHz.
IC1, R54, C62,
C123, C60,
C63, C45,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C55, CN6
(N)
Frequency Drift
Confirmation
-
Follow steps 1 to 3 of (K).
4. Confirm that the frequency Drift is < ± 30kHz/ms.
IC1, R54, C62,
C123, C60,
C63, C45,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C55, CN6
(O)
Sensitivity Receiver
Confirmation
-
Follow steps 1 to 3 of (K).
4. Set DECT tester power to -88dBm.
5. Confirm that the BER is < 1000ppm.
IC1, R54, C62,
C123, C60,
C63, C45,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C55, CN6
(P)
Timing Confirmation
-
Follow steps 1 to 3 of (K).
4. Confirm that the Timing accuracy is < ± 2.0ppm.
IC1, R54, C62,
C123, C60,
C63, C45,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C55, CN6
(Q)*
RSSI Level
Confirmation
-
Follow steps 1 to 3 of (K).
4. Set DECT tester power to -81dBm.
5. Execute the command “readrssi”.
6. Confirm that the returned value is 0×1C ± 8 (hex).
7. Set DECT tester power to -63dBm.
8. Execute the command “readrssi”.
9. Confirm that the returned value is 0×25 ± 8 (hex).
IC1, R54, C62,
C123, C60,
C63, C45,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C55, CN6
(R)
Power RAMP
Confirmation
-
Follow steps 1 to 3 of (K).
4. Confirm that Power RAMP is matching.
IC1, R54, C62,
C123, C60,
C63, C45,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C44, C47,
C46, C49,
C48, C50,
C53, C51,
R59, C54,
C55, CN6
(S)
Audio Check and
Confirmation
-
1.
Link to BASE which is connected to Line Simulator.
2.
Set line voltage to 48V and line current to 40mA.
3.
Input -45dBm/1KHz to MIC and measure Line output level.
4.
Confirm that the level is -9.5dBm ± 2dBm and that the distortion level is < 5%
at TEL Line (600
at TEL Line (600
Ω
Load).
5.
Input -20dBm/1KHz to Line I/F and measure Receiving level at REV1 and
REV2.
REV2.
6.
Confirm that the level is -20.5dBm ± 2dBm and that the distortion level is < 5%
at Receiver. (vol = 2)
at Receiver. (vol = 2)
IC1, C37, C68,
C91, R25,
R26, C20,
C12, C87,
R26, C20,
C12, C87,
C109, R85,
C103, C10,
C103, C10,
C17, R86,
R29, R37,
R29, R37,
R38, D4, D5,
C69, C70, C95
50
KX-TCD205RU / KX-TCD207R U / KX-TCA120RU
•
EEPROM serial JIG
JIG Cable: PQZZ1CD300E*
•
PC which runs in DOS mode.
•
Batch file CD-ROM for setting: PQZZTCD205RU
Note:
*: If
you
have
the
JIG
Cable
for
TCD500
series
(PQZZ1CD505E),
change
the
following
values
of
resistance. Then you can use it as a JIG Cable for both
TCD300 and TCD500 series. (It is an upper compatible JIG
Cable.)
TCD300 and TCD500 series. (It is an upper compatible JIG
Cable.)
Resistor
Old value (k
Ω
)
New value (k
Ω
)
R2
22
3.3
R3
22
3.3
R4
22
4.7
R7
4.7
10
14.2. The Setting Method of JIG (Handset)
14.2.1. Preparation
14.2.1.1. Equipment Required
•
DECT tester: Rohde & Schwarz, CMD 60 is recommended.
•
Frequency counter: it must be precise to be able to measure 1Hz (precision; ±4ppm).
Hewlett Packard, 53131A is recommended.
•
DC power: it must be able to output at least 1A current under 2.4V for Handset.
•
Digital multi-meter (DMM): it must be able to measure voltage and current.
•
Oscilloscope
14.2.1.2. JIG and PC
14.2.2. PC Setting
14.2.2.1. Connections
14.2.2.2. PC Setting
1. Open a window of MS-DOS mode from the start-up menu.
2. Change a directory.
3. Type “SET_COM=1” from the keyboard (when COM port 1 is used for the connection).
4. Type “doskey”.
Note:
See the table below for frequently used commands.
Command name
Function
Example
rdeeprom
Read the data of EEPROM
Type “rdeeprom 00 00 FF”, and the data from
address “00 00” to “FF” is read out.
address “00 00” to “FF” is read out.
readid
Read ID (RFPI)
Type “readid”, and the registered ID is read out.
writeid
Write ID (RFPI)
Type “writeid 00 18 E0 0E 98”, and the ID “0018 E0 0E
98” is written.
98” is written.
setfreq
Adjust Frequency of RFIC
Type “setfreq nn”.
getchk
Read checksum
Type “getchk”.
wreeprom
Write the data of EEPROM
Type “wreeprom 01 23 45”. “01 23” is address and “45”
is data to be written.
is data to be written.
51
KX-TCD205RU / KX-TCD207R U / KX-TCA120RU
14.3. Adjustment Standard (Handset)
When connecting the Simulator Equipment for checking, please refer to below.
C66
A201
ANT
R59
C54
C55
C45
R54
R55
CLK
R69
R70
C46
C47
R62
Q5
Q9
J3
TP22
CHG
CHG
TP23
J2
UTX
URX
J4
C58
C97
C102
C68
C37
C91
R85
C6
C19
C24
R19
R99
R82
C82
REV_
TEST2
TEST2
REV_
TEST1
TEST1
C60
C59
C123
C64
C61
C65
C44
C62
C63
C31
C32
C34
C35
C33
D1
R93
C119
R6
R47
R46
R86
R25
R29
C10
C107
C108
C122
C111
C112
F1
J1
BATT-
BATT+
C3
R1
R83
R43
C98
VDD3
D7
D6
D9
C40
R5
L5
L4
L8
C95
C28
R97
C27
C69
C70
C75
C30
R65
C52
C121
R84
R73
BUZZER
R95
R61
JTAG
R40
R39
R91
R63
C93
C113
C94
D10
D4
D5
VDD1
VDD2
POWER
R20
R96
R64
R60
R21
C41
C4
C22
C72
R57
C20
C7
R101
R100
BAT
GND
C57
C1
C53
CN6
C51
C50
C48
C49
C67
17
A
26
10
1
C84
R75
R75
PbF
IC1
IC3
X1
C21
R90
C18
R92
R72
C99
C23
C23
R87
R7
C114
R94
C120
C115
C71
R89
R88
R88
C39
R26
R98
C103
R38
C15
R37
C17
C109
C87
C12
L1
R12
R81
C118
C104
C5
C8
C96
Q4
Q11
Q2
Q3
Q10
Q1
Q12
PQUP11279Z
1
1
8
4
5
20
80
61
60
41
21
40
Current
Probe
DC
6V
Oscilloscope
AF
Generator
AF
Volt Meter
DECT tester
CMD60/CTS60
Oscilloscope
DC POWER
2.00-2.25
BATTLOW
Power key
150
Ω
AF Volt
Meter
OSC
AF
OSC
600
Ω
Loop
Dummy Base
Unit
REV-
REV+
Power
2.7V
ANT
GND
6.3V 47uF
Zener
Battery+
Battery-
DC POWER
2.30-2.60V
PC
URX
UTX
GND
GND
BAT
Digital
Volt Meter
GND
GND
VDD1
VDD2
VDD3
Frequency
Counter
CLK
100
Ω
22pF
Simulator
(F)
(S)
(I)
(D) (E) (G) (H)
(A) (B) (C)
(J)
(K) (L) (M) (N)
(O) (P) (Q) (R)
(O) (P) (Q) (R)
(S)
Note:
(A) - (S) is referred to Check Point (Handset) (P.48)
KX
-T
CD2
05RU
/
KX
-T
C
C
D
207R
U
/
/
KX
-T
CA1
20RU
52
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