About Lead Free Solder; Impedance Selector - Yamaha rx-sl100 Service Manual

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About Lead Free Solder /

The P.C.B.s installed in this unit are soldered using the
following solder.
DIGITAL P.C.B.
INPUT P.C.B.
MAIN P.C.B.
POWER P.C.B.
Among some types of lead free solder currently available,
it is recommended to use one of the following types for the
repair work.
• Sn + Ag + Cu (tin + silver + copper)
• Sn + Cu (tin + copper)
• Sn + Zn + Bi (tin + zinc + bismuth)
Caution:
1. As the melting point temperature of the lead free solder
is about 30°C to 40°C (50°F to 70°F) higher than that of
the lead solder, be sure to use a soldering iron suitable
to each solder.
2. If lead solder must be used, be sure to remove lead free
solder from each terminal section of the parts to be
replaced and from the area around it completely before
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soldering, or make sure that the lead free solder and
lead solder melt together fully.
I IMPEDANCE SELECTOR
(B, G models only)

IMPEDANCE SELECTOR

WARNING:
Do not change the IMPEDANCE SELECTOR
switch setting while the power to this unit is
on, otherwise this unit may be damaged.
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Component Side /
Lead Solder /
Lead Solder /
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Foil Side /
Lead Solder /
– Lead Free Solder /
Lead Free Solder /
– Lead Free Solder /
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