Panasonic KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT Service Manual ▷ View online
8.3.
Adjustment Standard (Base Unit)
When connecting the Simulator Equipments for checking, please refer to below.
LINE_DC
VDD1
L2R
DCP
2
1
DCM
VDD2
VDD3
VDD5
A_1
ANT
A_2
CLK
CN3
YELLOW
SP
CN4
A
BLACK
RED
CHARGE
VDD4
GND
PbF
PQUP11280Z
TP3
TX
TP4
RX
TP5
TP2
TP1
MIC
DCMW
BLUE
L2T
L1T
L1R
PC
Digital
Volt Meter
(A) (B) (C)
(D) (E)
DC POWER
6V
Dummy
Handset
DECT Tester
CMD60
(I) (J) (K) (L)
(M) (N) (O) (P)
(M) (N) (O) (P)
ANT
L1T
L1R
LINE_DC
DCM
DCM
DCP
GND
GND
DCM
CLK
CN4
VDD5
VDD4
VDD3
VDD2
CN3
CHARGE+
CHARGE-
Digital
Volt Meter
Frequency
Counter
(F)
(S)
(R)
TP5
RX
RX
TP1
10uF
TP2
TP3
GND
TP4
TX
TX
BELL
Simulator
Simulator
LOOP
Simulator
Simulator
AF
OSC
AF
OSC
AF VOLT
METER
METER
(G) (Q)
(H)
AF VOLT
METER
OSCILLOSCOPE
Digital
Volt Meter
Volt Meter
Call - ID
Simulator
Simulator
DTMF
Tester
Tester
OSC
AF VOLT
METER
OSC
600
12
2W
8
150
AF
OSC
MIC
SP
6.3V47 F
Note:
(A) - (S) is referred to Check Point (Base Unit) (P.27)
K
X
-T
C
D
3
46U
A
S
/
/
K
X-
T
T
C
D
346
U
A
T
/
/
K
X-
T
T
C
A
132U
A
S
/
/
K
X-
T
T
C
A
1
32U
A
T
/
/
K
X-
T
T
C
A
1
30U
A
S
/
/
K
X-
T
T
C
A
130U
A
T
33
8.4.
Check Point (Charger Unit)
Items
Check
Point
Procedure
Check or
Replace Parts
(A)
Charging Check
-
1. Connect Charge Contact 12
Ω/2W resistor between charge+ and charge-.
2. Measure and confirm voltage across the resistor is 2.85V ± 0.2V.
D11, R11, R12
Note:
After the measuring, sock up the solder of TP.
The connection of adjustment equipment is as shown in Adjustment Standard (Charger Unit) (P.34).
8.5.
Adjustment Standard (Charger Unit)
When connecting the Simulator Equipments for checking, please refer to below.
8.5.1.
Flow Solder Side View
TP3
TP2
TP1
A
D11
WHITE
BLUE
PbF
TP4
PQUP11305Z
DC POWER
6V
GND (TP2)
TP3
GND (TP2)
TP1
(A)
Digital
Volt Meter
12
Ω
/2W
R12
R11
R1
R2
Note:
(A) is referred to Check Point (Charger Unit) (P.34)
34
KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT
9 TROUBLESHOOTING BY SYMPTOM (HANDSET)
If your unit has belowsymptoms, followthe instructions in remedy column. Remedies depend on whether you have DECT tester
(*1) or not.
(*1) or not.
Note:
(*1): A general repair is possible even if you don’t have the DECT tester because it is for confirming the levels, such as Acoustic
level in detail.
level in detail.
(*2): Refer to Check Point (Handset) (P.35)
9.1.
Check Point (Handset)
Please followthe items belowwhen BBIC or EEPROM or FLASH ROM is replaced.
Note:
After the measuring, sock up the solder of TP.
*: PC Setting (P.39) is required beforehand.
The connections of adjustment equipments are as shown in Adjustment Standard (Handset) (P.40).
Items
Check
Point
Procedure
Check or
Replace Parts
(A)* 1.8V Supply Adjustment
TP12
1. Confirm that the voltage between test point TP12 and GND is 1.8V ± 0.02V.
2. Execute the command “bandgap”, then check the current value.
3. Adjust the 1.8V voltage of TP12 executing command “bandgap XX“(XX is the
value).
IC1, Q2, C40,
R4
(B)
DC/DC Supply
Confirmation
TP10
1. Confirm that the voltage between test point TP10 and GND is 2.97V ± 0.3V
(Backlight is OFF)/4.40V ± 0.3V (Backlight is ON).
IC1, F1, C1,
C3, C57, C74,
R1, R2, R3,
Q1, D1, L1,
R57
(C)
2.5V Supply
Confirmation
TP11
1. Confirm that the voltage between test point TP11 and GND is 2.5V ± 0.1V.
IC1, Q3, C4,
C5, R9, R10,
R11
(D)*
BBIC Confirmation
-
1. BBIC Confirmation (Execute the command "getchk").
2. Confirm the returned checksum value.
Connection of checksum value and program number is shown below.
IC1, X1, C7
(E)* EEP-ROM Confirmation
-
1. EEP-ROM Confirmation (Execute the command “ChkTCA130XXrevYY”).
XX: country code
YY: revision number
2. Confirm the returned checksum value.
Note:
“XX”, “YY”, and “checksum” vary depending on the country version. You can
find them in the batch file, PQZZ- mentioned in JIG and PC (P.39).
find them in the batch file, PQZZ- mentioned in JIG and PC (P.39).
IC10, IC1,
R39, R40
35
KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT
Items
Check
Point
Procedure
Check or
Replace Parts
(F) Charge Control Check &
Charge Current Monitor
Check
-
1. Apply 6V between J3(+) and J4(-) with DC power supply and set current limit to
250mA.
2. Confirm that the current limit LED of DC power supply is ON/OFF.
3. Decrease current limit of DC power supply to 100mA.
4. Confirm that the current limit LED of DC power supply is stable. (Current limiter
is ON.)
(If charge control cannot be confirmed by this procedure, please use battery to
handset power supply and try again.)
handset power supply and try again.)
IC1, Q4, Q5,
Q9, D6, L4,
L5, C73, C74,
R5, R6, R7,
R72, F1
(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, C73,
C74, 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(LowVoltage) write “YY”, then
EEPROM = 0X0005(No Voltage) write “YY - 1D”
EEPROM = 0X000A(LowVoltage BL) write “YY - 06”
No Voltage writing data limit is ‘00’.
c) XX: 00 ~ 17: Reject
XX: 33 ~ FF: Reject
IC1, F1, C74,
C1 C3, R81,
R24, R73, C9
(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, C74,
C1 C3, R81,
R24, R73, C9
(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.
10Hz.
Note:
CLK is displayed only for a fewseconds when executing the command “conttx”
after battery is inserted.
after battery is inserted.
IC1, X1, CN6,
C7, R127,
C117
(K)*
Transmitted Power
Confirmation
-
Remove the Antenna before starting step from 1 to 4.
1. Configure the DECT tester (CMD60) as follows;
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
· 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, IC3,
R127, C117,
C115, C119,
C115, C119,
C45, R121,
C44, R123,
C44, R123,
C47, C46,
R125, C48,
C49, C50,
C83, R75,
C53, C51,
C83, R75,
C53, C51,
R131, C54,
C55, R129
36
KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT
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