Read Panasonic UB-8325 Service Manual online
5
UB-8325
1.3.
For Service Technician
ICs and LSIs are vulnerable to static electricity.
When repairing, the following precautions will help to prevent recurring malfunctions.
When repairing, the following precautions will help to prevent recurring malfunctions.
1. Cover the plastic parts with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on the worktable.
4. Do not grasp IC or LSI pins with bare fingers.
2. Ground the soldering irons.
3. Use a conductive mat on the worktable.
4. Do not grasp IC or LSI pins with bare fingers.
1.4.
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.
• We will use PbF when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn),
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.
used.
Distinction of PbF PCB
• PCBs (manufactured) using lead free solder will have a PbF stamp on the PCB.
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.
• 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 pos-
sible 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)
1.4.1.
Suggested Pb free solder
We recommend you to use the following solder when you re-solder components for repair. Before using other Pb free solder than
the following solder, be sure to confirm a solder maker you appoint has made license agreements to be required when using Pb free
solder legally.
the following solder, be sure to confirm a solder maker you appoint has made license agreements to be required when using Pb free
solder legally.
Supplier: Senju Metal Industry Co., Ltd. (http://www.senju-m.co.jp)
Part Description in Senju: EcoSolder RMA02 P3 M705 Series
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