Panasonic KX-TG1107UAJ / KX-TG1107UAM / KX-TGA110UAJ / KX-TGA110UAM Service Manual ▷ View online
Cross Reference:
Telephone Line Interface (P.43)
Check Link (P.19)
HOW TO CHECK THE HANDSET SPEAKER (P.37)
Note:
BBIC is IC4.
7.4. Check Handset Transmission
Cross Reference:
SIGNAL ROUTE (P.46)
7.5. Check Handset Reception
Cross Reference:
HOW TO CHECK THE HANDSET SPEAKER (P.37).
SIGNAL ROUTE (P.46)
7.6. Check Caller ID
Cross Reference:
SIGNAL ROUTE (P.46)
7.7. Bell Reception
7.7.1. Handset
21
KX-TG1107UAJ / KX-TG1107U AM / KX-TGA110UAJ / KX-TGA110UAM
8 TROUBLESHOOTING BY SYMPTOM (BASE UNIT)
If your unit has below symptoms, follow the 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 (Base Unit) (P.22)
8.1. Check Point (Base Unit)
Please follow the items below when BBIC or EEPROM is replaced.
Note:
After the measuring, suck up the solder of TP.
*: PC Setting (P.26) is required beforehand.
The connections of simulator equipments are as shown in Adjustment Standard (Base Unit) (P.28).
Items
Adjustment
Point
Procedure
Check or
Replace Parts
(A)
2.65V Supply
Confirmation
-
1.
Confirm that the voltage between TP187 and GND is 2.65V ± 0.2V.
IC2, Q8, C23,
C24, C25,
C31, C26,
C27, C38,
C31, C26,
C27, C38,
R33, R36, D5,
C41, R41,
R42, Q9, C40,
D4, X1, C32,
C33, C36, C37
(B)
4.0V Supply
Confirmation
-
1.
Confirm that the voltage between TP91 and GND is 4.0V ± 0.2V.
D4, C40, Q9,
R41, R42,
C41, D5, C75,
C78, C69,
C66, C67,
C66, C67,
C76, IC3
(C)
VBACK Status
Confirmation
-
1.
Confirm that the voltage between J102 and GND is 0V ± 0.4V.
IC2, Q8, C23,
C24, C25,
C31, C26,
C27, C38,
C31, C26,
C27, C38,
R33, R36, D5,
C41, R41,
R42, Q9, C40,
D4, R33, X1,
C32, C33
(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.
IC2, X1, C32,
C33
22
KX-TG1107UAJ / KX-TG1107U AM / KX-TGA110UAJ / KX-TGA110UAM
Items
Adjustment
Point
Procedure
Check or
Replace Parts
(E)*
BBIC Clock
Confirmation and
Adjustment (Important)
TP1
1.
Execute the command “deactmac”.
2.
Execute the command “conttx”.
3.
Check X´tal Frequency. (*3)
(10.368 MHz ± 100Hz)
4.
Input Command “rdeeprom 00 00 02”, then you can confirm the current value.
5.
Adjust the frequency of TP1 executing the command “setfreq 00 xx (where xx
is the value)” so that the reading of the frequency counter is 10.368000MHz ±
10Hz.
is the value)” so that the reading of the frequency counter is 10.368000MHz ±
10Hz.
IC2, IC3, L1,
C48, X1, C32,
C33, L5
(F)* Hookswitch Check with
DC Characteristics
-
1.
Connect J1 (Telephone Socket) to Tel-simulator which is connected with 600
Ω
.
2.
Set line voltage to 48V at on-hook condition and line current to 40mA at off-
hook condition of normal telephone.
hook condition of normal telephone.
3.
Execute the command “hookoff”.
4.
Confirm that the line current is 40mA ± 5mA.
5.
Execute the command “hookon”.
6.
Confirm that the line current is 0mA + 2mA.
IC2, R7, R8,
R9, R10, R77,
Q2, Q3, D2,
C1, C2
(G)* DTMF Generator Check
-
1.
Connect J1 (Telephone Socket) to DTMF tester.
2.
Execute the command “hookoff” and “dtmf_up”.
3.
Confirm that the high frequency (1477.06Hz) group is -3 ± 2dBm.
4.
Execute the command “dtmf_lo”.
5.
Confirm that the low frequency (852.05Hz) group is -6 ± 2dBm.
IC2, R32, C22,
R23, C80,
C14, C13, Q6,
R22, R21,
R19, R20,
R19, R20,
C12, D2, C1,
C2, R77, D3,
R12, Q2, R7,
R8, R9, R10,
C2, R77, D3,
R12, Q2, R7,
R8, R9, R10,
Q3
(H)*
Transmitted Power
Confirmation
-
Remove the Antenna before starting steps from 1 to 5.
1.
1.
Configure the DECT tester (CMD60) as follows;
<Setting>
•
Short TP10 and GND
(After the checking, disconnect the wiring between them.)
•
Test mode: FP
•
Traffic Channel: 5
•
Traffic Slot: 4
•
Mode: Loopback
•
PMID: 00000
2.
Execute the command “testmode”.
3.
Initiate connection from DECT tester. (“set up connect”)
4.
Execute the command “ANT 1”.
5.
Confirm that the NTP value at ANT is 20dBm ~ 25dBm.
IC2, IC3, L1,
C43, C78,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C73, L3, DA1,
R66, R67,
C55, C56,
R78, R79,
C54, C58,
C55, C56,
R78, R79,
C54, C58,
C86, R38
(I)*
Modulation Check and
Adjustment
ANT
Follow steps 1 to 3 of (H) above.
4. Confirm that the B-Field Modulation is 340kHz/div ~ 402kHz/div using data
type Fig31.
type Fig31.
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.)
IC2, IC3, L1,
C43, C78,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C73, L3, DA1,
R66, R67,
C55, C56,
R78, R79,
C54, C58,
C55, C56,
R78, R79,
C54, C58,
C86, R38
(J)* Frequency Offset Check
-
Follow steps 1 to 3 of (H).
4. Confirm that the frequency offset is -50kHz ~ +50kHz.
IC2, IC3, L1,
C43, C78,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C73, L3, DA1,
R66, R67,
C55, C56,
R78, R79,
C54, C58,
C55, C56,
R78, R79,
C54, C58,
C86, R38
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KX-TG1107UAJ / KX-TG1107U AM / KX-TGA110UAJ / KX-TGA110UAM
Items
Adjustment
Point
Procedure
Check or
Replace Parts
(K)*
Sensitivity Receiver
Confirmation
-
Follow steps 1 to 3 of (H).
4. Set DECT tester power to -88dBm.
5. Confirm that the BER is < 1000ppm.
IC2, IC3, L1,
C43, C78,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C73, L3, DA1,
R66, R67,
C55, C56,
R78, R79,
C54, C58,
C55, C56,
R78, R79,
C54, C58,
C86, R38
(L)*
Timing Confirmation
-
Follow steps 1 to 3 of (H).
4. Confirm that the Timing accuracy is < ± 2.0ppm.
IC2, IC3, L1,
C43, C78,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C73, L3, DA1,
R66, R67,
C55, C56,
R78, R79,
C54, C58,
C55, C56,
R78, R79,
C54, C58,
C86, R38
(M)*
RSSI Level
Confirmation
-
Follow steps 1 to 3 of (H).
4. Set DECT tester power to -88dBm.
5. Execute the command “readrssi”.
6. Confirm: 25 < returned value < 43 (hex) (34 ± F (hex))
IC2, IC3, L1,
C43, C78,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C73, L3, DA1,
R66, R67,
C55, C56,
R78, R79,
C54, C58,
C55, C56,
R78, R79,
C54, C58,
C86, R38
(N)*
Receive Audio Check
and Adjustment
ANT
J1
1.
Configure the DECT tester (CMD60) as follows;
<Setting>
•
Test mode: FP
•
Mode: Low
•
PMID: 00000
2.
Execute the command “testmode”.
3.
Initiate connection from DECT tester.
4.
Execute the command “hookoff”.
5.
Execute the command “openau”.
6.
Connect J1 (Telephone Socket) to Tel-simulator which is connected with 600
Ω
.
7.
Set line voltage to 48V and line current to 40mA.
8.
Connect DECT tester to Tel-simulator.
9.
Input audio signal (200mVrms/1kHz tone) to Tel-simulator.
<DECT tester setting>
•
Scramble: On
•
AF Gen. to ADPCM: Off
•
AF Meter Input: ADPCM
•
AF Gen. Frequency: 1000Hz
•
AF Gen. Level: 200mVrms
10. Confirm hearing tone: 350mVrms ± 100mVrms
11. Adjust audio level if required. (Make sure current value using “getmicgain”. And
then execute the command “setmicgain xx”, where xx is the value.)
12. Confirm that the B-field audio distortion with DECT tester is < 5%.
IC2, C21, R31,
C20, C11,
R18, R16, D3,
R12, Q2, R7,
R8, Q3, R9,
R10, D2, C1,
C2, R77, IC3,
L1, C43, C78,
C75, C69,
C48, C72,
C66, C67,
C76, C57,
C48, C72,
C66, C67,
C76, C57,
C73, L3, DA1,
R66, R67,
C55, C56,
R78, R79,
C54, C58,
C55, C56,
R78, R79,
C54, C58,
C86, R38
24
KX-TG1107UAJ / KX-TG1107U AM / KX-TGA110UAJ / KX-TGA110UAM
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