Panasonic KX-TG1061M - Cordless Phone Base Station, Service Manual, Page: 55 / 114

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KX-TG1061M/KX-TG1062M/KX-TGA106M
9.3. Troubleshooting by Symptom (Cordless 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 (Cordless Handset) (P.55)
9.3.1. Check Point (Cordless Handset)
Please follow the items below when BBIC or EEPROM is replaced.
Note:
After the measuring, suck up the solder of TP.
*:
How to install Batch file into P.C. (P.70) is required beforehand.
The connections of adjustment equipments are as shown in Adjustment Standard (Cordless Handset) (P.71).
Items Check
Point
Procedure Check or
Replace Parts
( A )* 1.8 V Supply Adjustment 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).
IC1, Q2, C48,
D1, C1, C44,
R12, R45,
C40, C45, F1
( B )* 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.
IC1, X1, RA61,
R64, R66
( C )* EEP-ROM Confirmation - 1. EEPROM 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)
Note:
“checksum” vary depending on the country version. You can find them in the
batch file, PNZZ- mentioned in
The Setting Method of JIG (Cordless Handset)
(P.69).
IC1, IC3,
R40~R42,
C172
(D) Charge Control Check &
Charge Current Monitor
Check
- 1. Apply 3.5 V between CHG(+) and CHG(-) with DC power supply and set cur-
rent limit to 250 mA.
Confirm the indication of “charging” on LCD.
2. Confirm that the current limit LED of DC power supply is ON/OFF.
Confirm it after waiting over 1 minute at least.
3. Decrease current limit of DC power supply to 100 mA.
4. Confirm that the current limit LED of DC power supply is stable. (Current limiter
is ON.)
(If charge control cannot be confirmed by this procedure, please use battery to hand-
set power supply and try again.)
IC1, Q4 Q9,
D7, R6, R7,
F1, C1, R2,
R30, R31, R8,
R45
( E )* Charge Detection (OFF)
Check
- 1. Stop supplying 3.5 V to CHG (+) and CHG (-).
2. Confirm the indication of “charging” has been cleared. IC1, Q4 Q9,
D7, R6, R7,
F1, C1, R2,
R30, R31, R8,
R45