Panasonic KX-TG1711MEB - Troubleshooting by Symptom (Handset)

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KX-TG1711MEB/KX-TG1712MEB/KX-TGA171MEB
9.3. Troubleshooting by Symptom (Handset)
If your unit has below symptoms, follow the instructions in remedy column. Remedies depend on whether you have DECT tester
(*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.
(*2) Refer to Check Point (Handset) (P.27)
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 (P.38) is required beforehand.
The connections of simulator equipment are as shown in Adjustment Standard (Handset) (P.40).
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.
C143, R102,
L104
C140, L103,
IC101
C141, R201,
C102, C135,
C120, C131
C803, C825,
C110, C802,
C804, C148,
D107, C109,
R121, C186
(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,
C135, 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 6V 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 6V 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
You have DECT Tester.
(Model Number : CMD60)
Check item (A)-(C), (F)-(G).
Check item (A)-(C), (F)-(G).
Check item (A)-(C), (H).
Check item (A)-(C), (H)-(K), (M).
-
Check item (I), (L).
Check item (A)-(C), (H).
Check item (O).
Check item (A)-(C), (H)-(N).
Check item (O).
Remedy (*2)
Symptom
You don't have DECT Tester.
Battery strength is not indicated correctly by Battery icon.
You cannot hear the caller's voice.
You cannot use handset a little away from base unit
even if the handset is within range of the base unit.
Does not link between base unit and handset.
The Audio level is high or low.
ex.)
checksum value
program number
011B
DCN2EA