Panasonic KX-TCA151AZV, Service Manual

Page: 59 / 137

Please follow the items below when BBIC or EEPROM is replaced.
Items Adjustment
Point
Procedure
(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).
(B) 4.0V Supply
Confirmation
TP10
1. Confirm that the voltage between “TP10” and GND is 3.85V ± 0.2V.
(C) 2.7V Supply
Confirmation
TP11
1. Confirm that the voltage between “TP11” and GND is 2.7V ± 0.1V.
(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,
(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.
(F)
*
Charge
Detection
(OFF)
Confirmation
-
1. Stop supplying 6V to J3(+) and J4(-).
2. Execute the command "charge".
3. Confirm that the returned value is 0x01 (hex).
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