VSX-LX50
6
1
2
3
4
1
2
3
4
C
D
F
A
B
E
1. SERVICE PRECAUTIONS
1.1 NOTES ON SOLDERING
• F
or
environmental
protection,
lead-
f
ree
solder
is
used
on
the
printed
circuit
boards
mounted
in
this
unit.
Be
sure
to
use
lead-
f
ree
solder
and
a
soldering
iron
that
can
meet
speci
f
ications
f
or
use
w
ith
lead-
f
ree
solders
f
or
repairs
accompanied
by
re
w
orking
o
f
soldering.
•
Compared
w
ith
conventional
eutectic
solders,
lead-
f
ree
solders
have
higher
melting
points,
by
approximately
40
º
C.
There
f
ore,
f
or
lead-
f
ree
soldering,
the
tip
temperature
o
f
a
soldering
iron
must
be
set
to
around
373
º
C
in
general,
although
the
temperature
depends
on
the
heat
capacity
o
f
the
PC
board
on
w
hich
re
w
orking
is
re
q
uired
and
the
w
eight
o
f
the
tip
o
f
the
soldering
iron.
D
o
N
OT
use
a
soldering
iron
w
hose
tip
temperature
cannot
be
controlled.
Compared
w
ith
eutectic
solders,
lead-
f
ree
solders
have
higher
bond
strengths
but
slo
w
er
w
etting
times
and
higher
melting
temperatures
(
hard
to
melt
/
easy
to
harden
)
.
The
f
ollo
w
ing
lead-
f
ree
solders
are
available
as
service
parts
:
•
Parts
numbers
o
f
lead-
f
ree
solder
:
G
Y
P1006
1.0
in
dia.
G
Y
P1007
0.6
in
dia.
G
Y
P1008
0.3
in
dia.