Panasonic KX-TCA130UAS, Manual

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9 TROUBLESHOOTING BY SYMPTOM (HANDSET)
If your unit has belowsymptoms, followthe 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 (Handset) (P.35)
9.1. Check Point (Handset)
Please followthe items belowwhen BBIC or EEPROM or FLASH ROM is replaced.
Note:
After the measuring, sock up the solder of TP.
*: PC Setting (P.39) is required beforehand.
The connections of adjustment equipments are as shown in
Adjustment Standard (Handset)
(P.40).
Items Check
Point
Procedure Check or
Replace Parts
( A )* 1.8V Supply Adjustment TP12 1. Confirm that the voltage between test point TP12 and GND is 1.8V ± 0.02V.
2. Execute the command “bandgap”, then check the current value.
3. Adjust the 1.8V voltage of TP12 executing command “bandgap XX“(XX is the
value).
IC1, Q2, C40,
R4
( B ) DC/DC Supply
Confirmation
TP10 1. Confirm that the voltage between test point TP10 and GND is 2.97V ± 0.3V
(Backlight is OFF)/4.40V ± 0.3V (Backlight is ON).
IC1, F1, C1,
C3, C57, C74,
R1, R2, R3,
Q1, D1, L1,
R57
( C ) 2.5V Supply
Confirmation
TP11 1. Confirm that the voltage between test point TP11 and GND is 2.5V ± 0.1V. IC1, Q3, C4,
C5, R9, R10,
R11
( 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.
IC1, X1, C7
( E )* EEP-ROM Confirmation - 1. EEP-ROM Confirmation (Execute the command “ChkTCA130XXrevYY”).
XX: country code
YY: revision number
2. Confirm the returned checksum value.
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.39).
IC10, IC1,
R39, R40
35
KX-TCD346UAS / KX-TCD346UAT / KX-TCA132UAS / KX-TCA132UAT / KX-TCA130UAS / KX-TCA130UAT