KX-TG1401UAH, KX-TG1401UAL, KX-TG1402UA3, KX-TG1411UAM, KX-TG1411UAT, KX-TG1412UA1, KX-TGA131RUH, KX-TGA131RUL, KX-TGA131RUM, KX-TGA131RUT - Panasonic Telephone Service Manual (repair manual). Page 28

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KX-TG1401UA/KX-TG1402UA/KX-TG1411UA/KX-TG1412UA/KX-TGA131RU
(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 2.1V between BATTERY(+) and BATTERY(-).
4. Confirm that there is Speaker sound (Battery low alarm).
Career
module,D107,
C109, C125,
R117, R116,
C125, R117,
R116, Q104,
Q105, D104,
R115,
BUZZER
(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 “rdeeprom 00 00 02", 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 sfr xx xx (where xx is the value)” so that the
reading of the frequency counter is 10.368000 MHz ± 5 Hz.
Note:
Clear the registered information for Base Unit before measurement, because
the Frequency will not possibly get stable due to the registered information.
Pressing the button of “3” “7” “9” “#” clears the registration. Register to it on
Base Unit after measurement.
C127, C122,
C123, X101
(I)* Transmitted Power
Confirmation
ANT
Remove the Antenna 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 “regcmd60”.
3. Initiate connection from DECT tester.
4. Confirm that the NTP value at ANT is -19dBm ~ 25dBm.
Career
module, R1,
R2, C21, C23,
L3, L4, C15,
C20, D2, C17
(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.
Career
module, R1,
R2, C21, C23,
L3, L4, C15,
C20, D2, C17
(K)* Frequency Offset
Confirmation
-
Follow steps 1 to 4 of (I).
4. Confirm that the frequency offset is -50kHz ~ +50kHz.
Career
module, R1,
R2, C21, C23,
L3, L4, C15,
C20, D2, C17
(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.
R1, R2, C21,
C23, C1, C8,
C7, C12, C13,
L1, L2, C18,
C19, D1, C17
(M)* Timing Confirmation
-
Follow steps 1 to 4 of (I).
4. Confirm that the Timing accuracy is < ± 2.0ppm.
R1, R2, C21,
C23, C1, C8,
C7, C12, C13,
L1, L2, C18,
C19, D1, C17
(N)* RSSI Level Confirmation -
Follow steps 1 to 4 of (I).
4. Set DECT tester power to -70dBm.
5. Execute the command “readrssi”.
6. Confirm: 9 < returned value < 13 (hex) (0E ± 5 (hex))
R1, R2, C21,
C23, C1, C8,
C7, C12, C13,
L1, L2, C18,
C19, D1, C17
(O) 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 -9.5 ± 3dBm and that the distortion level is < 5% at TEL
Line (600
Ω Load).
5. Input -20dBm/1KHz to Line I/F and measure Receiving level at SP+ and SP-.
6. Confirm that the level is -21.5 ± 3dBm and that the distortion level is < 5% at
Receiver. (vol = middle, 150
Ω Load)
Items
Adjustment 
Point
Procedure
Check or 
Replace Parts
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