Panasonic KX-TCA154AZM, Руководство по обслуживанию

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Please follow the items below when BBIC or EEPROM is replaced.
Items Adjustment
Point
Procedure Check or
Replace
Parts
(A)
*
1.8V Supply
Confirmation
TP12
1. Confirm that the voltage between test point “TP12” and GND is 1.8V ± 0.02V.
2. Adjust the 1.8V voltage of TP12 executing command “bandgap XX“ (XX is the value).
IC1, Q2,
C40,
R4
B) 4.0V Supply
Confirmation
TP10
1. Confirm that the voltage between “TP10” and GND is 3.85V ± 0.2V.
IC1, F1,
C1, C2,
C3, C57,
C74,
R1, R2,
R3, Q1,
D1, L1, R57
C) 2.7V Supply
Confirmation
TP11
1. Confirm that the voltage between “TP11” and GND is 2.7V ± 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,
(E) Charge
Control Check
& Charge
Current
Monitor
Confirmation
-
1. Apply 6V between J3(+) and J4(-) with current limit of PSU to 200mA.
2. Confirm that the charge current is ON/OFF.
3. SW to decrease current limit of PSU to 100mA.
4. Confirm that the charge current is stable.
IC1, Q4,
Q5, Q9,
D6, D7, L4,
L5,
C73, C74,
R5,
R6, R7,
R72, F1
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