Panasonic KX-TG1860BXS, Руководство по обслуживанию

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15 TROUBLESHOOTING BY SYMPTOM (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 (Handset) (P.55)
15.1. Check Point (Handset)
Please follow the items below when BBIC or EEPROM is replaced.
Note:
After the measuring, sock up the solder of TP.
*: PC Setting (P.59) is required beforehand.
The connections of adjustment equipments are as shown in Adjustment Standard (Handset) (P.60).
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.59).
IC10, IC1,
R39, R40
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KX-TG1860BXS / KX-TG1860B XT / KX-TCA132CXS / KX-TCA132CXT / KX-TCA130CXS / KX-TCA130CXT