Sony RM-PJ25, Service Manual

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1-26 (E)
VPL-HW40ES
1-8. Lead-free Solder
All boards mounted in this unit use lead-free solder. Be sure to use lead-free solder when repairing the
boards of this unit. A lead free mark (LF) indicating that the solder contains no lead is printed on each
board.
(Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular
size.)
: LEAD FREE MARK
n
.
The lead-free solder melts at a temperature about 40
d
C higher than the ordinary solder, therefore, it is
recommended to use the soldering iron having a temperature regulator.
.
The ordinary soldering iron can be used but the iron tip has to be applied to the solder joint for a slightly
longer time. The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so
be careful.