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Model
KX-TG1711UAB KX-TG1711UAJ KX-TG1711UAW KX-TGA171RUB KX-TGA171RUJ KX-TGA171RUW (serv.man2)
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28
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1.68 MB
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Service Manual / Supplement
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Device
Telephone / DIGITAL CORDLESS PHONE
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Panasonic KX-TG1711UAB / KX-TG1711UAJ / KX-TG1711UAW / KX-TGA171RUB / KX-TGA171RUJ / KX-TGA171RUW (serv.man2) Service Manual / Supplement ▷ View online

13
(H)* Modulation Check
ANT
Follow steps 1 to 3 of (G).
4. Confirm that the B-Field Modulation is -350±50kHz/div, +350±50kHz/div using
data type Fig31.
IC3, C813,
P101, SA1,
C811, C812
C807, C819,
C826, D801,
C808, C810,
D6, C809,
C39, C38,
RA43, C823,
C821, RA801,
C803, C825,
C44, C806,
C802, C804,
C820, C830,
C815, L1
(I)* Frequency Offset Check -
Follow steps 1 to 3 of (G).
4. Confirm that the frequency offset is -50kHz ~ +50kHz.
IC3, C813,
P101, SA1,
C811, C812
C807, C819,
C826, D801,
C808, C810,
D6, C809,
C39, C38,
RA43, C823,
C821, RA801,
C803, C825,
C44, C806,
C802, C804,
C820, C830,
C815, L1
(J)* Sensitivity Receiver
Confirmation
-
Follow steps 1 to 3 of (G).
4. Set DECT tester power to -84dBm.
5. Confirm that the BER is < 1000ppm.
IC3, C813,
P101, SA1,
C811, C812
C807, C819,
C826, D801,
C808, C810,
D6, C809,
C39, C38,
RA43, C823,
C821, RA801,
C803, C825,
C44, C806,
C802, C804,
C820, C830,
C815, L1
(K)* Timing Confirmation
-
Follow steps 1 to 3 of (G).
4. Confirm that the Timing accuracy is < ± 2.0ppm.
IC3, C813,
P101, SA1,
C811, C812
C807, C819,
C826, D801,
C808, C810,
D6, C809,
C39, C38,
RA43, C823,
C821, RA801,
C803, C825,
C44, C806,
C802, C804,
C820, C830,
C815, L1
Items
Adjustment 
Point
Procedure
Check or 
Replace Parts
14
(L)* RSSI Level Confirmation -
Follow steps 1 to 3 of (G).
4. Set DECT tester power to -70dBm.
5. Execute the command “readrssi”.
6. Confirm: 25 < returned value < 43 (hex) (0E ± A (hex))
IC3, C813,
P101, SA1,
C811, C812
C807, C819,
C826, D801,
C808, C810,
D6, C809,
C39, C38,
RA43, C823,
C821, RA801,
C803, C825,
C44, C806,
C802, C804,
C820, C830,
C815, L1
(M) Charging Check
-
1. Connect Charge Contact 12
/2W resistor between charge+ and charge-.
2. Measure and confirm voltage across the resistor is 3.0V ± 0.2V.
F1, C58, R39,
C61, C40
(N)* Audio Check
-
1. Link with Handset which is connected to Line Simulator.
2. Set line voltage to 48V and line current to 50mA.
3. Input -45dBm (600
)/1kHz to MIC of Handset.
Measure the Level at Line I/F and distortion level.
4. Confirm that the level is -5.5 ± 3dBm and that the distortion level is < 5% at TEL
Line (600
 Load).
5. Input -20dBm (600
)/1kHz to Line I/F.
Measure the level at Receiver of Handset and distortion level
(*Receive volume set to second position from minimum). 
6. Confirm that the level is -23.5 ± 3dBm and that the distortion level is < 5% at
Receiver (150
 Load).
Items
Adjustment 
Point
Procedure
Check or 
Replace Parts
15
3.2.5.
Troubleshooting by Symptom (Handset)
3.2.5.1.
Check Point (Handset)
[Changed from original section "9.3.1. Check Point (Handset)"]
Please follow the items below when BBIC or EEPROM is replaced.
Note:
After the measuring, suck up the solder of TP.
*:  PC Setting is required beforehand.
The connections of simulator equipment are as shown in Adjustment Standard (Handset) (P.19).
Items
Adjustment 
Point
Procedure
Check or 
Replace Parts
(A) Battery Supply
Confirmation
-
1. Confirm that the consumption current is < 200mA, that is, there is no short
circuit.
R102, C144,
F1, C140,
L103, IC101
C141, R201,
C102, C120,
C131
C803, C825,
C110, C802,
C804, C148,
D107, C109,
R121, C186,
IC103
(B) VDDDCDC2 Supply
Confirmation
-
1. Confirm that the voltage between VDDDCDC2 and GND is 3.3V ± 0.3V.
IC103,  C140,
L103, R107,
IC101, C141,
R201, C102,
C120
(C)* 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.
IC103, X101,
C122, C123,
C127
(D) Charge Control Check &
Charge Current Monitor
Check
-
1. Apply 5.5V between TP5(+) and TP6(-) with current limit of PSU to 250mA.
2. Confirm that the charge current is ON/OFF.
3. SW to decrease current limit of PSU to 75mA.
4. Confirm that the charge current is stable.
C101, C160,
R101, C161,
Q101, Q102,
C142, R108,
IC103
(E)* Charge Detection (OFF)
Check
-
1. Stop supplying 5.5V to TP5(+) and TP6(-).
2. Execute the command “charge”.
3. Confirm that the returned value is 00 (hex).
C101, C160,
R101, C161,
Q101, Q102,
C142, R108,
IC103
(F)* Battery Monitor Check &
Adjustment (Important)
-
1. Apply 2.3V ± 0.005V between BATTERY (+) and BATTERY (-) with DC power.
2. Execute the command “deactmac” to stabilize the value.
3. Then, execute the command “readbatt”. The returned value is XX.
4. Confirm that XX is between 98 and A7.
98 < XX < A7 (Hex)
(If XX is out of range, change BBIC)
IC103, D107,
C148, C109
F1, R121,
C186
(G) Battery Low
Confirmation (Important)
-
1. Apply 2.40V between BATTERY (+) and BATTERY (-).
2. Confirm that there is no Speaker sound (Battery low alarm).
3. Apply 2.2V between BATTERY(+) and BATTERY(-).
4. Confirm that there is Speaker sound (Battery low alarm).
IC103, D107,
F1, C148
C109, R121,
C186
R114, D104
Q104, Q105,
RA102, BZ1
ex.)
checksum value
program number
011B
DCN2EA
16
(H)* BBIC Clock Adjustment
(Important)
P1.0
CLK
1. Apply 2.6V between BATTERY (+) and BATTERY (-) with DC power.
2. Execute the command “EnableClockOutput”.
3. Input Command “sfr", then you can confirm the current value.
4. Check X’tal Frequency. (10.368 MHz ± 100 Hz).
5. If the frequency is not 10.368 MHz ± 100 Hz, adjust the frequency of CLK
executing the command “setfreq xx xx (where xx is the value)” so that the
reading of the frequency counter is 10.368000 MHz ± 5 Hz.
Note:
* How to de-registration (link to base unit)
1) Push handset: menu 
 #  1  3  1
2) Push handset: 0 
 0  0  0
3) Select handset you want to de-regist.
After push OK. 
Register to it on Base Unit after measurement.
C127, C122,
C123, X101,
IC103
(I)* Transmitted Power
Confirmation
ANT
Short the ANT-Short and ANT-Short-GND before starting steps from 1 to 5.
1. Configure the DECT tester (CMD60) as follows;
<Setting>
• Test mode: PP
• RFPI: 0102030405
• Traffic Channel: 5
• Traffic Slot: 4
• Mode: Loopback
2. Execute the command “testmode”.
3. Initiate connection from DECT tester.
4. Confirm that the NTP value at ANT is -19dBm ~ 25dBm.
C814, C812,
IC103, C813,
C807, C819,
C826, D803,
C817, C149,
RA801, C823,
C803, C825,
C110, C802,
C804, C821,
C820, C815
(J)* Modulation Check
ANT
Follow steps 1 to 4 of (I).
4. Confirm that the B-Field Modulation is 340kHz/div ~ 402kHz/div using data
type Fig31.
C814, C812,
IC103, C813,
C807, C819,
C826, D803,
C817, C149,
RA801, C823,
C803, C825,
C110, C802,
C804, C821,
C820, C815
(K)* Frequency Offset
Confirmation
-
Follow steps 1 to 4 of (I).
4. Confirm that the frequency offset is -50kHz ~ +50kHz.
C814, C812,
IC103, C813,
C807, C819,
C826, D803,
C817, C149,
RA801, C823,
C803, C825,
C110, C802,
C804, C821,
C820, C815
(L)* Sensitivity Receiver
Confirmation
-
Follow steps 1 to 4 of (I).
4. Set DECT tester power to -85dBm.
5. Confirm that the BER is < 1000ppm.
C814, C812,
IC103, C813,
C807, C819,
C826, D803,
C817, C149,
RA801, C823,
C803, C825,
C110, C802,
C804, C821,
C820, C815
(M)* Timing Confirmation
-
Follow steps 1 to 4 of (I).
4. Confirm that the Timing accuracy is < ± 2.0ppm.
C814, C812,
IC103, C813,
C807, C819,
C826, D803,
C817, C149,
RA801, C823,
C803, C825,
C110, C802,
C804, C821,
C820, C815
Items
Adjustment 
Point
Procedure
Check or 
Replace Parts
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