Sony BKM-FW50 Service Manual page 5

Network receiver adaptor

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1-1. Unleaded Solder

Boards requiring use of unleaded solder are printed with a

lead free mark (LF) indicating 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

. 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.

. 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.

BKM-FW50

Section 1

Service Overview

1-1