Panasonic KX-TDA0103X / KX-TDA0103XJ / KX-TDA0104X / KX-TDA0104XJ / ETX1KM753MB / ETX1KM752MB Service Manual ▷ View online
53
KX-TDA0103X/KX-TDA0103XJ/KX-TDA0104X/KX-TDA0104XJ
9 Miscellaneous
9.1.
How To Replace a Flat Package IC
Even if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), a sol-
dering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.
dering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.
9.1.1.
Preparation
• PbF (: Pb free) Solder
• Soldering Iron
• Soldering Iron
Tip Temperature of 700
°F ± 20°F (370°C ± 10°C)
Note: We recommend a 30 to 40 Watt soldering iron. An
expert may be able to use a 60 to 80 Watt iron where some-
one with less experience could overheat and damage the
PCB foil.
expert may be able to use a 60 to 80 Watt iron where some-
one with less experience could overheat and damage the
PCB foil.
• Flux
Recommended Flux: Specific Gravity
→ 0.82.
Type
→ RMA (lower residue, non-cleaning type)
Note: See About Lead Free Solder (PbF: Pb free) (P.5).
9.1.2.
Removal Procedure
1. Put plenty of solder on the IC pins so that the pins can be
completely covered.
Note:
Note:
If the IC pins are not soldered enough, you may give
pressure to the P.C. board when cutting the pins with
a cutter.
pressure to the P.C. board when cutting the pins with
a cutter.
2. Make a few cuts into the joint (between the IC and its
pins) first and then cut off the pins thoroughly.
3. While the solder melts, remove it together with the IC
pins.
When you attach a new IC to the board, remove all solder
left on the land with some tools like a soldering wire. If some
solder is left at the joint on the board, the new IC will not be
attached properly.
left on the land with some tools like a soldering wire. If some
solder is left at the joint on the board, the new IC will not be
attached properly.
9.1.3.
Procedure
1. Tack the flat pack IC to the PCB by temporarily soldering
two diagonally opposite pins in the correct positions on
the PCB.
the PCB.
Be certain each pin is located over the correct pad on the PCB.
2. Apply flux to all of the pins on the IC.
3. Being careful to not unsolder the tack points, slide the sol-
dering iron along the tips of the pins while feeding enough
solder to the tip so that it flows under the pins as they are
heated.
solder to the tip so that it flows under the pins as they are
heated.
9.1.4.
Removing Solder From Between
Pins
Pins
1. Add a small amount of solder to the bridged pins.
2. With a hot iron, use a sweeping motion along the flat part
2. With a hot iron, use a sweeping motion along the flat part
of the pin to draw the solder from between the adjacent
pads.
pads.
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KX-TDA0103X/KX-TDA0103XJ/KX-TDA0104X/KX-TDA0104XJ
MEMO:
55
KX-TDA0103X/KX-TDA0103XJ/KX-TDA0104X/KX-TDA0104XJ
10 Schematic Diagram
10.1. KX-TDA0103X/KX-TDA0103XJ
KX-TDA0103X/KX-TDA0103XJ CIRCUIT DIAGRAM No.1
INLET
WWUX752M-4A
CN005
FG(PE)
AC INLET
GND
GA
GA
GA
GA
GA
GA
GA
GA
GA
GA
GND
ASSEMBLY
SW001
F001
110V TO 240V
(TO CN003)
DWGXKM752MB-C02PG1/2
NP
L
N
3
2
NP
2
1
N
2
L
1
1
1
3
GA
GA
C027
C033
C032
C028
C030
Z001
R053
C029
CN002
C031
L012
L011
Filter Circuit
56
KX-TDA0103X/KX-TDA0103XJ/KX-TDA0104X/KX-TDA0104XJ
KX-TDA0103X/KX-TDA0103XJ CIRCUIT DIAGRAM No.2 (1/2)
(1)
(2)
(3)
(4)
(5)
(6)
110V-240V
DWGXKM752MB-C01PG1/2
L
4
N
1
(FROM CN002)
CN003
D003
C026
C038
D006
D007
CR001
F003
R036
R078
R003
R063
R062
R023
Q008
Q009
R005
R087
R086
R044
TH001
PC005
R099
D012
R027
R057
R034
R043
R037
R091
R092
R090
R088
R084
R007
R006
R011
MC001
R016
R068
R069
ZD002
ZD001
D001
R001
R014
R096
R002
C004
R079
R097
R077
PC005
PC001
PC004
34
3
8
CS
9
11
8
PFC-ON
GATE
NP
7 OCL
5 NP
3
6
VIN
GND
2
NP
4
OVP
1
S+
10
VCC
7
REF
6
Vcc
5
1
2
3
4
OUT
RT FB IS+ G
IC001
L009
Q010
Q011
R052
R050
D014
D015
Q004
R070
R025
L002
R056
R013
L001
AC+
AC-
C001
C016
C017
R054
R055
C002
D016
R083
R081
R082
R015
R021
R017
R022
R024
R058
R029
R094
R095
R028
R060
R061
R046
R085
ZD005
C022
C018
C037
ZD011
C025
C035
C021
R049
R051
R067
R072
R048
R019
R093
R086
R042
R041
R038
R033
R031
R030
R032
R039
R045
R040
ZD003
ZD010
C011
C006
C034
R064
R008
R009
R065
R004
R066
D018
D002
R010
R012
C012
C013
C014
C015
C010
Q005
R080
C023
C036
C040
PC003
PC002
TS001
4
3
4
3
D017
D009
R047
C019
C020
Q003
Q006
R018
R020
D004
D005
D008
D019
D020
D011
L005
L006
D010
C003
C005
C007
C008
ZD004
ZD006
R098
R026
R059
C098
C009
Q007
Q001
Q002
ZD009
ZD008
ZD007
PFC Circuit
Inrush Current Circuit
Primary Circuit
(A)
Feedback
PFC Module
Controller IC
1
2
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
85Vac
118V
8.3ms
390V
8.3ms
21V
17.0us
390V
400mV
18.6us
18.6us
21V
18.6us
700V
17us
21V
18.6us
21V
21V
73V
0V
3
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