40
KX-TGC210/KX-TGC212/KX-TGC213/KX-TGC220/KX-TGC222/KX-TGCA20
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.
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
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.
*:
(P.51) is required beforehand.
The connections of simulator equipment are as shown in
Adjustment Standard (Base Unit)
Symptom
Remedy (*2)
You don’t have DECT Tester.
You have DECT Tester.
(Model Number: CMD60)
You cannot dial.
Check item (A) - (I).
Check item (A) - (I), (J) - (N).
You cannot hear the caller’s voice.
Check item (A) - (G), (O).
Check item (A) - (G), (J) - (N), (O).
You cannot use the handset a little away from base unit even if the
handset is within range of the base unit.
-
Check item (J) - (N).
The acoustic transmit level is high or low.
Check item (O).
Check item (O).
The acoustic reception level is high or low.
Check item (O).
Check item (O).
Base unit and handset do not link to each other.
Check item (A) - (I).
Check item (A) - (N).
The unit cannot charge.
Check item (P).
Check item (P).
TAM does not work. (for KX-TGC220 only)
Check item (Q).
Check item (Q).
Items
Check
Point
Procedure
Check or
Replace Parts
(
A
)
3.0 V Supply
Confirmation
VDD3
1. Confirm that the voltage between test point VDD3 and GND is 3.0 V ± 0.2 V.
IC302, R321,
R322, C341,
C342 , R905,
D905
(
B
)
1.8 V Supply
Confirmation
VDD1
1. Confirm that the voltage between test point VDD1 and GND is 1.8 V ± 0.02 V.
2. Execute the command “VDD”, then check the current value.
3. Adjust the 1.8V voltage of VDD1 executing command “VDD XX“(XX is the
value).
Q301, IC501,
R311, C311,
C516, C517
(
C
) Charge Pump 3.0V
Supply Confirmation
VDD5
1. Confirm that the voltage between test point VDD5 and GND is 3.0 V -0.1/+0.3
V.
IC501, C512
(
D
) Charge Pump 3.0V
Supply Confirmation
VDD4
1. Confirm that the voltage between test point VDD4 and GND is 3.0 V ± 0.2 V.
IC501, C509
(
E
)*
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.
IC501, X501
(
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/
SUM” in Software_Version_Table.xls).
IC501, RA611,
IC611, C611
(
G
)* BBIC Clock Adjustment
CKM
1. Confirm that the voltage between testpoint VDD4 and GND is less than 1.0 V.
2. Input Command “ sendchar sfr”, then you can confirm the current value.
3. Check X’tal Frequency. (10.368 MHz ± 100 Hz).
4. If the frequency is not 10.368 MHz ± 100 Hz, adjust the frequency of CKM
executing the command “sendchar sfr xx xx (where xx is the value)” so that
the reading of the frequency counter is 10.368000 MHz ± 5 Hz.
IC501, X501,
C502
(
H
)* Hookswitch Check with
DC Characteristics
-
1. Connect Telephone Socket to Tel-simulator which is connected with 600
.
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.
P101, Q141,
R141, R142,
Q142, R144,
R145, D101,
R160, R162,
R169, R170,
D141, Q161,
R151, IC501
checksum value
9CF3
program number
DE91EN
ex.)
Summary of Contents for KX-TGCA20EX
Page 66: ...66 KX TGC210 KX TGC212 KX TGC213 KX TGC220 KX TGC222 KX TGCA20 Memo ...
Page 73: ...73 KX TGC210 KX TGC212 KX TGC213 KX TGC220 KX TGC222 KX TGCA20 Memo ...
Page 76: ...76 KX TGC210 KX TGC212 KX TGC213 KX TGC220 KX TGC222 KX TGCA20 Memo ...
Page 80: ...80 KX TGC210 KX TGC212 KX TGC213 KX TGC220 KX TGC222 KX TGCA20 Memo ...
