Panasonic KX-TCD410ALM, Service Manual

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Items Procedure Check o
Replac
Parts
(D) Charge Control
Check & Charge
Current Monitor
Confirmation
1. Apply 6V between TP CHG(+) and TP CHG(-) 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, L4
L5, Q2, Q
R6, D2, R
C26, F1, R
R4, C3
(E)
*
Charge
Detection (OFF)
Confirmation
1. Stop supplying 6V to TP CHG(+) and TP CHG(-).
2. Execute the command "charge".
3. Confirm that the returned value is 0x00 (hex).
IC1, L4
L5, Q2, Q
R6, D2, R
C26, F1, R
R4, C3
(F)
*
Battery Monitor
Confirmation &
Adjustment
1. Apply 2.3V ± 0.005V between TP BATT(+) and TP BATT(-).
2. Execute the command "readbatt".
3. Confirm:
98 < returned value < A8 (Hex)
4. Execute the command "WRTBAT2 XX".
XX: (returned value) - 06 (Hex)
IC1,
F1, R21
R4, C3
(G) Battery low
Confirmation
1. Apply 2.40V between TP BATT(+) and TP BATT(-).
2. Confirm that there is no BUZZER sound (Battery low alarm).
3. Apply 2.20V between TP BATT(+) and TP BATT(-).
4. Confirm that there is BUZZER sound (Battery low alarm).
IC1, F1, R
R4, C3
(H)
*
BBIC Clock
Adjustment
1. Execute the command "deactmac".
2. Execute the command "conttx".
3. Input Command “rdeeprom 00 00 02“, then you can confirm the current value.
4. Adjust the frequency of TP MCLK executing the command "setfreq 00 xx (where xx is the value)" so
that the reading of the frequency counter is 10.368000MHz ± 3Hz.
IC1, L3, C
IC3, X1, C
C17, C1
(I)* Transmitted
Power
Confirmation
Remove the Antenna before starting step from 1 to 5.
1. Configure the DECT tester(CMD60) as follows;
<Setting>
-Test mode: PP
-RFPI: 0102030405
-Traffic Channel: 5
-Traffic Slot: 4
-Mode: Loopback
2. Execute the command "testmode".
3. Execute the command "regcmd60"
4. Initiate connection from DECT tester.
5. Confirm that the NTP value at ANT is 20dBm ~ 25dBm
IC1, IC3,
C66, C60
C57, C5
C56,
C62, R2
C64, C6
R18, C5
C61, C7
(J) Modulatoin
Check and
Adjusment
Follow steps 1 to 4 of (I) above.
5. Confirm that the B-Field Modulation is 340kHz/div ~ 402kHz/div using
data type Fig31.
6. Adjust the B-Field Modulation if required. (Execute the command
"Readmod" and "Wrtmod xx", where xx is the value.)
IC1, IC3,
C66, C60
C57, C5
C56,
C62, R2
C64, C6
R18, C5
C61, C7
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