Sharp AR-5316E (serv.man4) Service Manual ▷ View online
LEAD-FREE SOLDER
The PWBÕs of this model employs lead-free solder. The ÒLFÓ marks indicated on the PWBÕs and the Service Manual mean ÒLead-FreeÓ solder.
The alphabet following the LF mark shows the kind of lead-free solder.
(1) NOTE FOR THE USE OF LEAD-FREE SOLDER THREAD
When repairing a lead-free solder PWB, use lead-free solder thread.
Never use conventional lead solder thread, which may cause a breakdown or an accident.
Since the melting point of lead-free solder thread is about 40¡C higher than that of conventional lead solder thread, the use of the exclusive-use
Since the melting point of lead-free solder thread is about 40¡C higher than that of conventional lead solder thread, the use of the exclusive-use
soldering iron is recommendable.
(2) NOTE FOR SOLDERING WORK
Since the melting point of lead-free solder is about 220¡C, which is about 40¡C higher than that of conventional lead solder, and its soldering capacity is
inferior to conventional one, it is apt to keep the soldering iron in contact with the PWB for longer time. This may cause land separation or may exceed
inferior to conventional one, it is apt to keep the soldering iron in contact with the PWB for longer time. This may cause land separation or may exceed
the heat-resistive temperature of components. Use enough care to separate the soldering iron from the PWB when completion of soldering is
confirmed.
Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently.
Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently.
If different-kind solder remains on the soldering iron tip, it is melted together with lead-free solder. To avoid this, clean the soldering iron tip after
completion of soldering work.
If the soldering iron tip is discolored black during soldering work, clean and file the tip with steel wool or a fine filer.
Example:
5mm
Lead-Free
Solder composition
code (Refer to the
table at the right.)
code (Refer to the
table at the right.)
<Solder composition code of lead-free solder>
Solder composition
Sn-Ag-Cu
Sn-Ag-Bi
Sn-Ag-Bi-Cu
Sn-Ag-Bi-Cu
Sn-Zn-Bi
Sn-In-Ag-Bi
Sn-Cu-Ni
Sn-Ag-Sb
Bi-Sn-Ag-P
Bi-Sn-Ag
Bi-Sn-Ag
a
b
z
i
n
s
p
Solder composition code
a
[14]LeadFree.fm 1 ページ ２００６年１２月１日 金曜日 午後２時１８分
2006 BY SHARP CORPORATION
Printed in Japan.
Trademark acknowledgments
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
SHARP CORPORATION
Digital Document System Group
CS Promotion Center
Yamatokoriyama, Nara 639-1186, Japan
Digital Document System Group
CS Promotion Center
Yamatokoriyama, Nara 639-1186, Japan
N
c
Printed in Japan.
Trademark acknowledgments
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
N
c
Printed in Japan.
Trademark acknowledgments
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
2006 Dec. Printed in Japan
N
c
[00]COVER.fm 2 ページ ２００６年１２月１日 金曜日 午後２時１１分
2006 BY SHARP CORPORATION
Printed in Japan.
Trademark acknowledgments
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
SHARP CORPORATION
Digital Document System Group
CS Promotion Center
Yamatokoriyama, Nara 639-1186, Japan
Digital Document System Group
CS Promotion Center
Yamatokoriyama, Nara 639-1186, Japan
N
c
Printed in Japan.
Trademark acknowledgments
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
N
c
Printed in Japan.
Trademark acknowledgments
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
2006 Dec. Printed in Japan
N
c
[00]COVER.fm 2 ページ ２００６年１２月１日 金曜日 午後２時１１分
2006 BY SHARP CORPORATION
Printed in Japan.
Trademark acknowledgments
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
SHARP CORPORATION
Digital Document System Group
CS Promotion Center
Yamatokoriyama, Nara 639-1186, Japan
Digital Document System Group
CS Promotion Center
Yamatokoriyama, Nara 639-1186, Japan
N
c
Printed in Japan.
Trademark acknowledgments
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
N
c
Printed in Japan.
Trademark acknowledgments
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
Windows and Windows NT are trademarks of Microsoft Corporation in the U.S.A.
and other countries.
IBM and PC/AT are trademarks of International Business Machines Corporation.
PCL is a trademark of Hewlett-Packard Company.
Pentium is a registered trademark of Intel Corporation.
All other trademarks and copyrights are the property of their respective owners.
2006 Dec. Printed in Japan
N
c
[00]COVER.fm 2 ページ ２００６年１２月１日 金曜日 午後２時１１分
