Panasonic KX-TCD445BXS, Руководство по обслуживанию

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15 ADJUSTMENTS (HANDSET)
If your unit have below symptoms, adjust or confirm each item using remedy column from the table.
Symptom Remedy*
The movement of Battery Low indicator is wrong. Make confirmation in item ( A )~( C ), ( F )~( G )
The handset does not respond to a call from base unit. Make adjustments in item ( A )~( C ), ( H ), ( J )~( N )
The handset does not transmit or the transmit frequency is off. Make adjustments in item ( A )~( C ), ( H )~( K ), ( M )
The transmit frequency is off. Make confirmation in item ( A )~( C ), ( H )~( K ), ( M )
The transmit power output is low, and the operating distance between base unit and handset is
less than normal. Make confirmation in item ( I ), ( L )
The reception sensitivity of base unit is low with noise. Make confirmation in item ( L)
Does not link between base unit and handset. Make confirmation in item ( A )~( C ), ( H )~( N )
The reception level is high or low. Make adjustments in item ( O )
The transmit level is high or low. Make adjustments in item ( P )
*: Refer to Adjustment (Handset) (P.52)
15.1. Adjustment (Handset)
Please follow the items below when BBIC or EEPROM is replaced.
Items Procedure Check or
Replace Parts
( A ) 4.0V Supply
Confirmation
1. Confirm that the consumption current is < 200mA, that is, there is no short circuit.
2. Confirm that the voltage between TP4V and GND is 3.9V ± 0.2V.
IC1,F1,R21,
R4,C33,L2,
D1,C15,C2,
C14,Q1,R3,
R2,D2,R22,
C26,X1,C16,
C17
( B ) VBACK Status
Confirmation
1. Confirm that the voltage between TPVBACK and GND is 0V ± 0.4V. IC1,R11
( C ) 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,C16,
C17
( D ) Charge Control Check &
Charge Current Monitor
Confirmation
1. Apply 6V between TPCHG(+) and TPCHG(-) with current limit of PSU to 250mA.
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,Q3,
R6,D2,R22,
C26,F1,R21,
R4,C33
( E )* Charge Detection (OFF)
Confirmation
1. Stop supplying 6V to TPCHG(+) and TPCHG(-).
2. Execute the command "charge".
3. Confirm that the returned value is 0x00 (hex).
IC1,L4,
L5,Q2,Q3,
R6,D2,R22,
C26,F1,R21,
R4,C33
( F )* Battery Monitor
Confirmation &
Adjustment (Important)
1. Apply 2.3V ± 0.005V between ) and TPBATT(-) with DC power.
2. Execute the command "deactmac" to stabilize the value.
3. Then, execute the command “readbatt“. The returned value is XX.
4. Confirm that XX is between 98 and A8
98 < XX < A8 (Hex)
(If XX is out of range, change BBIC)
IC1,L4,
L5,Q2,Q3,
R6,D2,R22,
C26,F1,R21,
R4,C33
( G ) Battery low Confirmation
(Important)
1. Apply 2.40V between ) and TPBATT(-).
2. Confirm that there is no Speaker sound (Battery low alarm).
3. Apply 2.20V between ) and TPBATT(-).
4. Confirm that there is Speaker sound (Battery low alarm).
IC1,F1,R21,
R4,C33
( H )* BBIC Clock Adjustment
(Important)
1. Apply 2.6V between ) and TPBATT(-) with DC power.
2. Execute the command "deactmac" .
3. Execute the command "conttx" .
4. Input Command “rdeepron 00 01 01“, then you can confirm the current value.
5. Adjust the frequency of TPMCLK executing the command.
“setfreq 00 xx (where xx is the value)”
so that the reading of the frequency counter is 10.368000MHz ± 10Hz.
IC1,L3,C57,
IC3,X1,C16,
C17
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KX-TCD445BXS / KX-TCD445BXT / KX-TCD445BXF / KX-A144BXS / KX-A144BXT / KX-A144BXF /