Panasonic KX-TCD505HKM, Руководство по обслуживанию

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Items Adjustment
Point
Procedure* Check
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,
C2, C3,
C57, C74,
R1, R2,
Q1, D1,
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,
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,
L5,
C73, C74,
R5,
R6, R7,
R72,
(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).
IC1, Q4,
Q5, Q9
D6, D7,
L5,
C73, C74,
R5,
R6, R7,
R72,
(G)
*
Battery Monitor
Confirmation &
Adjustment
-
1. Apply 2.3V ± 0.005V between BATT(+) and BATT(-).
2. Execute the command "Backloff", then “readbatt“.
3. Confirm: 29 returned value 36 (Hex)
(If the returned value is within the range, no need to do step 4 and 5.)
4. If the reading is out of range in step 3 above, adjust the battery monitor excuting
command “wreeprom 00 01 01 XX”. (XX is the reading at step 3.)
5. Then excute command “wreeprom 00 36 01 YY”. (YY= XX - 0E)
IC1, F1,
C74, C2
C3, R81,
R24,
R73, C9
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