Panasonic KX-TG8107UA, Service Manual

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KX-TG8107UA/KX-TG8108UA/KX-TGA810UA
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.41)
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.54) is required beforehand.
The connections of simulator equipments are as shown in Adjustment Standard (Base Unit) (P.56).
Items Check
Point
Procedure Check or
Replace Parts
( A ) 3.3V Supply Confirma-
tion
VDD3 1. Confirm that the voltage between test point VDD3 and GND is 3.3V ± 0.2V. IC1, C31, C32,
R38, R39, C36,
C37
( B ) 2.5V Supply Confirma-
tion
VDD2 1. Confirm that the voltage between test point VDD2 and GND is 2.5V ± 0.2V. Q9, C70, C71
( C )* 1.8V Supply Confirma-
tion
VDD1 1. Confirm that the voltage between test point VDD1 and GND is 1.8V ± 0.1V. Q8, R72, D12,
C68
( D )* 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.
IC7, R37, C62,
C63, X1, C72,
R75~R81, R62,
R63
( E)* EEPROM Confirmation - 1. EEPROM Confirmation (Execute the command “ChkTG8100XXrevYY.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.54).
IC5, C51, R62,
R63, Q14, C50,
R57~R61
( F )* BBIC Clock Adjustment CLK 1. Input Command “rdeeprom 00 01 01”, then you can confirm the current value.
2. Adjust the frequency of CLK executing the command “setfreq xx (where xx is
the value)” so that the reading of the frequency counter is 10.368000MHz ±
10Hz.
IC10, C111,
C112, X1, R73,
C62, C63
( G )* Hookswitch Check with
DC Characteristics
- 1. Connect CN1 (Telephone Socket) to Tel-simulator which is connected with
600
Ω
.
2. Set line voltage to 48V and line current to 40mA at off-hook condition of nor-
mal 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 less than + 0.8mA.
L1, L2, Q3, R14,
R15, Q4, R16,
R17, IC7, D3