Unleaded Solder; Precautions For Use Of Condensation Sensor - Sony HDV HVR-1500 Service Manual

2-21. Unleaded Solder

Unleaded solder is used for all the boards of this unit.
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
m
. Be sure to use the unleaded solder for the boards of this
unit.
. 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.
2-22. Precautions for use of
Condensation Sensor
Due to the foreign substances adhering to the condensation
sensor chip (see figure below), the sensor fails to measure
the correct value of residence to humidity. This prevents
the unit from functioning properly. If any foreign sub-
stance gets adhered to the chip, replace the condensation
sensor with a new one.
m
. Do not touch the chip with bare hands.
. Do not clean the chip with alcohol or other similar
agents.
Solders
Bracket
Condensation
sensor chip
HVR-1500
1 pin
Leads Connector
2-35