Panasonic KX-TES824UA / KX-TEM824UA / KX-TE82461X / KX-TE82474X / KX-TE82480X / KX-TE82483X / KX-TE82491X / KX-TE82492X / KX-TE82493X / KX-A227X / KX-TES824UAPP / KX-TEM824UAPP Service Manual ▷ View online
13.2. IC6
PIN No
Pin Name
I/O
Function
4
CDT1
I
Current Detect1
5
CDT2
I
Current Detect2
6
CDT3
I
Current Detect3
7
DET_DOOR
I
Door Phone Card Detect
8
NINT_AC
I
AC Power-off Detection Signal
9
NINT_DC
I
DC Power-off Detection Signal
10
OGM_SW
O
Connected to the extension
11
BLRLY
O
BELL Disconnection; 0: Disconnected, 1: Connected
13
CO1_VAG
O
Connected to VAG
14
CO2_VAG
O
Connected to VAG
15
CO3_VAG
O
Connected to VAG
16
CO4_VAG
O
Connected to VAG
17
CO5_VAG
O
Connected to VAG
18
CO6_VAG
O
Connected to VAG
19
CO7_VAG
O
Connected to VAG
20
CO8_VAG
O
Connected to VAG
21
CLM1
O
Column Input 1
24
CLM2
O
Column Input 2
25
CLM3
O
Column Input 3
26
CLM4
O
Column Input 4
27
ROW1
O
Row Input 1
28
ROW2
O
Row Input 2
29
ROW3
O
Row Input 3
30
ROW4
O
Row Input 4
36
CONF3
O
Conference
37
MUTE3
O
Send MUTE
38
DL3
O
Pulse Dial
39
DS3
O
Dial Shunt
40
SHUNT3
O
Receive Mute
41
PAD3
O
3dB PAD
44
BELLA3
I
Bell Detect A
45
BELLB3
I
Bell Detect B
46
CONF2
O
Conference
47
MUTE2
O
Send MUTE
48
DL2
O
Pulse Dial
49
DS2
O
Dial Shunt
50
SHUNT2
O
Receive Mute
51
PAD2
O
3dB PAD
53
BELLA2
I
Bell Detect A
54
BELLB2
I
Bell Detect B
55
CONF1
O
Conference
56
MUTE1
O
Send MUTE
53
KX-TES824UA / KX-TEM824UA /
PIN No
Pin Name
I/O
Function
57
DL1
O
Pulse Dial
58
DS1
O
Dial Shunt
59
SHUNT1
O
Receive Mute
60
PAD1
O
3dB PAD
61
BELLA1
I
Bell Detect A
64
BELLB1
I
Bell Detect B
31
DET_CID1
I
CID Card Detect(1AP)
32
DET_CID2
I
CID Card Detect(2AP)
34
DET_CID3
I
CID Card Detect(3AP)
35
DET_TAM
I
Voice Message Card(10min)
54
KX-TES824UA / KX-TEM824UA /
14 TERMINAL GUIDE OF ICS, TRANSISTORS AND DIODES
55
KX-TES824UA / KX-TEM824UA /
15.1. PREPARATION
•
•
•
• PbF (: Pb free) Solder
•
•
•
• 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
someone with less experience could overheat and damage
the PCB foil.
Note: We recommend a 30 to 40 Watt soldering iron. An
expert may be able to use a 60 to 80 Watt iron where
someone 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).
(P.5).
15.2. 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
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.
attached properly.
15.3. INSTALLATION PROCEDURE
1. Tack the flat pack IC to the PCB by temporarily soldering
two diagonally opposite pins in the correct positions on the
PCB.
PCB.
Be certain each pin is located over the
correct pad on the PCB.
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
soldering 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.
enough solder to the tip so that it flows under the pins as
they are heated.
15.4. REMOVING SOLDER FROM
BETWEEN 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 of
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.
15 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 soldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.
a soldering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.
56
KX-TES824UA / KX-TEM824UA /
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