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41
KX-TG6551CAM/KX-TGA650RUM/KX-TGA651RUM
9.2.
Troubleshooting by Symptom (Base Unit and Charger 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.
(*2) Refer to Check Point (Base Unit) (P.41)
level in detail.
(*2) Refer to Check Point (Base Unit) (P.41)
9.2.1.
Check Point (Base Unit)
Please follow the items below when BBIC or EEPROM or FLASH is replaced.
Note:
After the measuring, suck up the solder of TP.
*: The Setting Method of JIG (Base Unit) (P.53) is required beforehand.
The connections of simulator equipments are as shown in Adjustment Standard (Base Unit) (P.55).
*: The Setting Method of JIG (Base Unit) (P.53) is required beforehand.
The connections of simulator equipments are as shown in Adjustment Standard (Base Unit) (P.55).
You have DECT Tester.
(Model Number : CMD60)
Check item (A)-(I),(T).
Check item (A)-(I), (J)-(P),(T).
Check item (A)-(G),(Q),(T).
Check item (A)-(G), (J)-(P), (Q),(T).
-
Check item (J)-(P).
Check item (Q).
Check item (Q).
Check item (Q).
Check item (Q).
Check item (A)-(I).
Check item (A)-(P).
You cannot dial.
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.
even if the handset is within range of the base unit.
The acoustic transmit level is high or low.
The acoustic reception level is high or low.
Base unit and handset do not link each other.
Remedy (*2)
Symptom
You don't have DECT Tester.
Items
Check
Point
Procedure
Check or
Replace Parts
(A)
3.0 V Supply
Confirmation
Confirmation
VBAT
1. Confirm that the voltage between test point VDD3 and GND is 3.0 V ± 0.2 V.
C304, C310,
C303, D301,
C303, D301,
C341, F301,
Q301, L301,
Q301, L301,
Q302, IC301,
R301, R303,
R308, R306
(B)
1.2 V Supply
Confirmation
Confirmation
VDDC
1. Confirm that the voltage between test point VDDC and GND is 1.2 V ± 0.1 V.
IC501
(D) Charge Pump 3.0V
Supply Confirmation
+3.0V
1. Confirm that the voltage between test point +3.0V and GND is 3.0 V ± 0.2 V.
IC601, C504,
C521
(E)*
BBIC Confirmation
-
1. BBIC Confirmation (Execute the command “getchk”).
2. Confirm the returned checksum value.
2. Confirm the returned checksum value.
Connection of checksum value and program number is shown below.
IC501, X501,
RA504, R505
(F)* EEPROM Confirmation
-
1. EEP-ROM Confirmation (Execute the command "sendchar EPV").
2. Confirm the returned Value. (Value for reference is written at "EEPROM C/
2. Confirm the returned Value. (Value for reference is written at "EEPROM C/
SUM” in Software_Version_Table.xls).
IC661, IC501,
R612, R606,
R605
(G)* BBIC Clock Adjustment
CLK
1. Input Command “ sendchar sfr”, then you can confirm the current value.
2. Check X’tal Frequency. (13.824 MHz ± 100 Hz).
3. If the frequency is not 13.824 MHz ± 100 Hz, adjust the frequency of CLK
2. Check X’tal Frequency. (13.824 MHz ± 100 Hz).
3. If the frequency is not 13.824 MHz ± 100 Hz, adjust the frequency of CLK
executing the command “sendchar sfr xx xx (where xx is the value)” so that
the reading of the frequency counter is 13.824 MHz ± 7 Hz.
the reading of the frequency counter is 13.824 MHz ± 7 Hz.
IC501, X501,
C508, C509
(H)* Hookswitch Check with
DC Characteristics
-
1. Connect Telephone Socket to Tel-simulator which is connected with 600
Ω.
2. Set line voltage to 48 V and line current to 40mA at off-hook condition of
normal telephone.
3. Execute the command “hookoff”
4. Confirm that the line current is 40 mA ± 5 mA.
5. Execute the command “hookon”.
6. Confirm that the line current is less than + 0.8 mA.
4. Confirm that the line current is 40 mA ± 5 mA.
5. Execute the command “hookon”.
6. Confirm that the line current is less than + 0.8 mA.
P101, D101,
R141, R142,
R141, R142,
Q142, R144,
R145, D141,
R162, R165,
Q161, R161,
R164, R163,
R167, R651,
R145, D141,
R162, R165,
Q161, R161,
R164, R163,
R167, R651,
R152
checksum value
82D2
program number
DC01EN
ex.)
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