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 25

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KX-TG1401UA/KX-TG1402UA/KX-TG1411UA/KX-TG1412UA/KX-TGA131RU
(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.
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.
Career
module. C30,
C31, D2, Q3,
Q2, R26, R22,
R18, R15
(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 ± 2 dBm.
4. Execute the command “dtmf_lo”.
5. Confirm that the low frequency (852.05Hz) group is -6 ± 2 dBm.
Career
module, R2,
C4, C5, R7,
R9, R10, C9,
R11, R13,
R12, R6, Q1,
D10, D1, Q3,
R26, R22, Q2,
R18, D2, C30,
C31
(H)* Transmitted Power
Confirmation
-
Remove the Antenna before starting steps from 1 to 5.
1. Configure the DECT tester (CMD60) as follows;
<Setting>
• 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”.
5. Confirm that the NTP value at ANT is 14dBm ~ 20dBm.
Career
module, C4,
C6, C2, C3,
C25, C8, C1,
C12, C13, C7,
L1, L2, C18,
C19, D1, C17,
R2, C23,
BASE module.
R43, R44, L2,
C38, C42, D6,
C39, C41
(I)* Modulation Check and
Adjustment
ANT
Follow steps 1 to 3 of (H).
4. Confirm that the B-Field Modulation is 340kHz/div ~ 402kHz/div using data
type Fig31.
5. Adjust the B-Field Modulation if required. (Execute the command “readmod”
and “wrtmod xx”, where xx is the value.)
Career
module, C4,
C6, C2, C3,
C25, C8, C1,
C12, C13, C7,
L1, L2, C18,
C19, D1, C17,
R2, C23,
BASE module.
R43, R44, L2,
C38, C42, D6,
C39, C41
(J)* Frequency Offset Check -
Follow steps 1 to 3 of (H).
4. Confirm that the frequency offset is -50kHz ~ +50kHz.
Career
module, C4,
C6, C2, C3,
C25, C8, C1,
C12, C13, C7,
L1, L2, C18,
C19, D1, C17,
R2, C23,
BASE module.
R43, R44, L2,
C38, C42, D6,
C39, C41
(K)* Sensitivity Receiver
Confirmation
-
Follow steps 1 to 3 of (H).
4. Set DECT tester power to -84dBm.
5. Confirm that the BER is < 1000ppm.
Career
module, C4,
C6,
C2, C3, C25,
L3, L4, C15,
C20, R1, C21,
D1, C17, C20,
R1, C21, D1,
C17, BASE
module, R43,
R44, L2, C38,
C42, D6, C39,
C41
Items
Adjustment 
Point
Procedure
Check or 
Replace Parts
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