Panasonic KX-TCD420RUT / KX-A142RUT Service Manual ▷ View online
1.2. How to recognize that Pb Free solder is used
1.2.1. Base Unit PCB
PbF
IC7
IC8
IC9
144
109
108
1
1
16
17
32
1
11
36
35
28
18
73
72
Marked
(Component View)
Marked
TP13
TP15
TP8
TP7
TP11
TP106
TP9
TP1
2
4
1
5
6
TP4
TP2
TP3
TP10
TP6
TP5
B0
B4
B8
B1
GND
MODE
SCL
SD
A
A
VDD
J105
PbF
J102
J104
J103
J101
B2
CHARGE
CHARGE
(Flow Solder Side View)
Note:
The location of the “PbF“ mark is subject to change without notice.
5
KX-TCD420RUT / KX-A142RUT
1.2.3. Charger Unit PCB
1.2.2. Handset PCB
Marked
PbF
IC1
IC2
100
80
5
8
4
1
50
51
30
31
1
11
18
1
28
IC3
(Component View)
Marked
1
PROG
PbF
BOOK
UP
POWER
CAN
DOWN
RIGHT
REDIAL
LEFT
1
2
3
6
5
7
0
#
R
4
9
8
INT
MIC
TALK
36
CN2
(Flow Solder Side View)
Note:
The location of the “PbF“ mark is subject to change without notice.
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.
6
KX-TCD420RUT / KX-A142RUT
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.
7
KX-TCD420RUT / KX-A142RUT
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.
·
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 handset on the base unit.
Please charge the batteries for about 7 hours before initial use. During charging, the battery icon is as shown below.
The handset which power is off will be turned on automatically when it is placed on the base unit.
In normal use, the handset and the base unit should be powered on at all times.
Note for Service:
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.
8
KX-TCD420RUT / KX-A142RUT
Click on the first or last page to see other KX-TCD420RUT / KX-A142RUT service manuals if exist.