Panasonic KX-TCD540RUM / KX-TCA154RUM / KX-TCD540RUT / KX-TCA154RUT Service Manual ▷ View online
1.2.2. Cordless Handset PCB
IC3
IC2
IC1
IC10
PbF
Marked
(Component View)
MIC
INT
#
9
6
3
MAIL
SP
SW1
SOFT_A
CLEAR
TALK
S1
0
8
5
2
7
4
1
R
LED7
LED4
LED9
IC4
IC5
LED6
LED5
PbF
Marked
(Flow Solder Side View)
Note:
The location of the “PbF“ mark is subject to change without notice.
1.2.3. Charger Unit PCB
PbF
D1
J1
Marked
PbF
R1
R2
TP4
TP1
TP2
TP3
Marked
(Component View)
(Flow Solder Side View)
Note:
The location of the “PbF“ mark is subject to change without notice.
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KX-TCD540RUM / KX-TCA154RUM / KX-TCD540RUT / KX-TCA154RUT
2 FOR SERVICE TECHNICIANS
ICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help prevent recurring malfunctions.
1. Cover the plastic parts boxes with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on the worktable.
4. Do not touch IC or LSI pins with bare fingers.
3 CAUTION
Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommendenced by the
manufacturer.
manufacturer.
Dispose of used batteries according to the manufacture’s Instructions.
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KX-TCD540RUM / KX-TCA154RUM / KX-TCD540RUT / KX-TCA154RUT
4 BATTERY
4.1. Battery Installation
Please ensure the batteries are inserted as shown.
part should be inserted first.
Close the cover as indicated by the arrow.
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When you replace the batteries,
part should be removed first.
4.2. Battery Charge
At the time of shipment, the batteries are not charged. To charge, place the cordless handset on the charger.
Please charge the batteries for about 7 hours before initial use. During charging, the charge LED will light as shown below.
The cordless handset, even when switched off, will be turned on automatically when it is placed on the charger.
The cordless handset will not operate while it is on the charger.
If the handset display flashes
when the cordless handset is lifted off the charger, please charge the cordless handset
batteries at least 15 minutes.
Note for Service:
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The battery strength may not be indicated correctly if the battery is disconnected and connected again, even after it is fully
charged.
charged.
In that case, by recharging the battery as mentioned above, you will get a correct indication of the battery strength.
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Confirmation of Antenna Pict (
) indication:
If Antenna Pict is indicated, charge time is about 7 hours.
However, if Antenna Pict is flashing, charge time becomes long.
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KX-TCD540RUM / KX-TCA154RUM / KX-TCD540RUT / KX-TCA154RUT
4.3. Battery Information
After your Panasonic battery is fully charged:
Ni-MH Batteries (typical 700 mAh)
Operation
Operating Time
While in use (TALK)
10 hrs approx.
While not in use (Standby)
180 hrs approx.
Ni-Cd Batteries (typical 250 mAh)
Operation
Operating Time
While in use (TALK)
4 hrs approx.
While not in use (Standby)
60 hrs approx.
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Times indicated are for peak performance.
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The battery operating time may be shortened depending on usage conditions and ambient temperature.
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Clean the charge contacts of the cordless handset and the charger with a soft, dry cloth. Clean if the unit is subject to
grease, dust or high humidity.
grease, dust or high humidity.
Otherwise the battery may not charge properly.
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The batteries cannot be overcharged unless they are repeatedly removed and replaced.
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For maximum battery life, it is recommended that the cordless handset not be recharged until the battery icon flashes
.
4.4. Replacing the Batteries
If the
icon flashes after a few telephone calls even when the cordless handset batteries have been fully charged, both
batteries must be replaced.
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Charge new batteries for approximately 7 hours before initial use.
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When replacing the batteries, be sure to set up the battery type even if you install the same type of batteries to
initialise battery remaining memory of your cordless handset.
initialise battery remaining memory of your cordless handset.
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Do not use non-rechargeable batteries. If non-rechargeable batteries are installed and start charging, battery
electrolyte may leak from the unit.
electrolyte may leak from the unit.
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Open the battery cover by pressing down firmly on the notch and sliding it as indicated by the arrow below.
Replace both batteries and close the cover. Charge the cordless handset for about 7 hours.
Please order Panasonic P03P (Ni-MH) or P03H (Ni-Cd) batteries.
Note for Service:
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When Ni-Cd batteies are littled with the
setting in
,
icon might disappear and stop
charging even if the handset is on the cradle for avoiding overcharge.
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KX-TCD540RUM / KX-TCA154RUM / KX-TCD540RUT / KX-TCA154RUT
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