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 Check Point (Base Unit) (P.43)
9.2.1.
Check Point (Base Unit)
Please follow the items below when BBIC or EEPROM is replaced.
Note:
After the measuring, suck up the solder of TP.
*: PC Setting (P.58) is required beforehand.
The connections of simulator equipments are as shown in Adjustment Standard (Base Unit) (P.60).
Items
(A) 3.3 V Supply Confirma-
tion
(B) 2.5 V Supply Confirma-
tion
(C) 1.8 V Supply Confirma-
tion
(D)*
BBIC Confirmation
(E)* EEPROM Confirmation
(F)* BBIC Clock Adjustment
Check
Point
VDD3
1. Confirm that the voltage between test point VDD3 and GND is 3.3 V ± 0.2 V.
VDD2
1. Confirm that the voltage between test point VDD2 and GND is 2.5 V ± 0.2 V.
VDD1
1. Confirm that the voltage between test point VDD1 and GND is 1.8 V ± 0.1 V.
-
1. BBIC Confirmation (Execute the command "getchk").
2. Confirm the returned checksum value.
Connection of checksum value and program number is shown below.
-
1. EEP-ROM Confirmation (Execute the command "ChkTG8200XXrevYY.bat").
XX: country code
YY: revision number
2. Confirm the returned checksum value.
3. The checksum is displayed in the last output line.
Note:
"XX", "YY", and "checksum" vary depending on the country version. You can find
them in the batch file, PQZZ- mentioned in JIG and PC (P.58).
CLK
1. Check X'tal Frequency. (10.368 MHz ± 100 Hz).
Input Command "rdeeprom 00 01 01", then you can confirm the current value.
2. If the frequency is not 10.368 MHz ± 100Hz, Adjust the frequency of CLK exe-
cuting the command "setfreq xx (where xx is the value)" so that the reading of
the frequency counter is 10.368000 MHz ± 20 Hz.
Procedure
43
KX-TG8200BXB/KX-TGA820BXB
Check or
Replace Parts
IC1, C31, C32,
R38, R39, C36,
C37
Q9, C70, C71
Q8, R72, D12,
C64, C68
IC7, R73, C62,
C63, X1, C72,
R75~R81, R62,
R63
IC5, C51, R62,
R63, C50, Q25,
R134, R141,
C160
IC10, C111,
C112, X1, R73,
C62, C63