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
28.5. TROUBLESHOOTING GUIDE
264
28.6. IC DATA
266
28.7. TERMINAL GUIDE OF ICS, TRANSISTORS AND
DIODES
267
28.8. ACCESSORIES AND PACKING MATERIALS
267
28.9. REPLACEMENT PARTS LIST (KX-TE82492X)
268
28.10. FOR THE SCHEMATIC DIAGRAM
269
28.11. SCHEMATIC DIAGRAM (KX-TE82492X)
270
28.12. PRINTED CIRCUIT BOARD (KX-TE82492X)
272
29 KX-TE82493X (3-PORT CALLER ID CARD)
273
29.1. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS
USED
274
29.2. LOCATION OF OPTIONAL CARDS
275
29.3. BLOCK DIAGRAM
276
29.4. CIRCUIT OPERATIONS
276
29.5. TROUBLESHOOTING GUIDE
277
29.6. IC DATA
278
29.7. TERMINAL GUIDE OF ICS, TRANSISTORS AND
DIODES
280
29.8. ACCESSORIES AND PACKING MATERIALS
280
29.9. REPLACEMENT PARTS LIST (KX-TE82493X)
281
29.10. FOR THE SCHEMATIC DIAGRAM
283
29.11. SCHEMATIC DIAGRAM (KX-TE82493X)
284
29.12. PRINTED CIRCUIT BOARD (KX-TE82493X)
286
30 KX-A227X (BACK-UP BATTERY CABLE)
287
30.1. ACCESSORIES AND PACKING MATERIALS
288
30.2. REPLACEMENT PARTS LIST (KX-A227X)
289
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KX-TES824UA / KX-TEM824UA /
1 ABOUT LEAD FREE SOLDER (PbF: Pb free)
Note:
In the information below, Pb, the symbol for lead in the periodic table of elements, will refer to standard solder or solder that
contains lead.
contains lead.
We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin, (Sn),
Silver, (Ag), and Copper, (Cu).
Silver, (Ag), and Copper, (Cu).
This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repair
work we suggest using the same type of solder although, with some precautions, standard Pb solder can also be used.
work we suggest using the same type of solder although, with some precautions, standard Pb solder can also be used.
Caution
•
•
•
• PbF solder has a melting point that is 50° ~ 70° F, (30° ~ 40°C) higher than Pb solder. Please use a soldering iron with
temperature control and adjust it to 700° ± 20° F, (370° ± 10°C). In case of using high temperature soldering iron, please
be careful not to heat too long.
be careful not to heat too long.
•
•
•
• PbF solder will tend to splash if it is heated much higher than its melting point, approximately 1100°F, (600°C).
•
•
•
• If you must use Pb solder on a PCB manufactured using PbF solder, remove as much of the original PbF solder as possible
and be sure that any remaining is melted prior to applying the Pb solder.
•
•
•
• When applying PbF solder to double layered boards, please check the component side for excess which may flow onto the
opposite side (See figure, below).
1.1. SUGGESTED PbF SOLDER
There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper,
(Sn+Ag+Cu), you can also use Tin and Copper, (Sn+Cu), or Tin, Zinc, and Bismuth, (Sn+Zn+Bi). Please check the
manufacturer’s specific instructions for the melting points of their products and any precautions for using their product with other
materials.
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.
(Sn+Ag+Cu), you can also use Tin and Copper, (Sn+Cu), or Tin, Zinc, and Bismuth, (Sn+Zn+Bi). Please check the
manufacturer’s specific instructions for the melting points of their products and any precautions for using their product with other
materials.
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.
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KX-TES824UA / KX-TEM824UA /
1.2. HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED
6
KX-TES824UA / KX-TEM824UA /
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.
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.
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KX-TES824UA / KX-TEM824UA /