Servicing Notes - Sony HT-XT100 Service Manual

HT-XT100
The SERVICING NOTES contains important information for servicing. Be sure to read this section before repairing the unit.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the 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
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to fl ow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
DESTINATION ABBREVIATIONS
The following abbreviations for model destinations are used in this
service manual.
• Abbreviations
AUS : Australian model
CND : Canadian model
4
SECTION 1

SERVICING NOTES

MODEL IDENTIFICATION
Distinguish by model number label stuck on the rear side of a main
unit.
Note: The printed contents of following fi gure model number label may
be different from the model number label of a main unit.
MODEL NUMBER LABEL
US and Canadian models
AEP model
4-562-643-0[]
UK model
4-562-644-0[]
Australian model
4-562-642-0[]
4-562-779-0[]
– Rear view –