Unleaded Solder - Sony NSP-1 Service Manual

1-14. Unleaded Solder

Boards requiring use of unleaded solder are printed with a
lead free mark (LF) indicating that the solder contains no
lead.
(Caution: Some printed circuit boards may not come
printed with the lead free mark due to their particular size.)
: LEAD FREE MARK
m
. Be sure to use the unleaded solder for the printed circuit
board printed with the lead free mark.
. The unleaded solder melts at a temperature about 40 dC
higher than the ordinary solder, therefore, it is recom-
mended to use the soldering iron having a temperature
regulator.
. An ordinary soldering iron can be used but the iron tip
needs to be applied to the solder joint for a slightly
longer time. The printed pattern (copper foil) may peel
off if the heated tip is applied for too long, so be careful.
NSP-1
1-19 (E)