Read Sony HT-XT1 Service Manual online
HT-XT1
4
SECTION 1
SERVICING NOTES
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
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
• 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.
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
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.
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.
also be added to ordinary solder.
NOTE OF REPLACING THE IC3009 ON THE HDMI
BOARD
IC3009 on the HDMI board cannot replace with single. When this
part is damaged, replace the complete mounted board.
BOARD
IC3009 on the HDMI board cannot replace with single. When this
part is damaged, replace the complete mounted board.
NOTE OF REPLACING THE IC1009 ON THE MAIN
BOARD
IC1009 on the MAIN board cannot replace with single. When this
part is damaged, replace the complete mounted board.
IC1009 on the MAIN board cannot replace with single. When this
part is damaged, replace the complete mounted board.
CAPACITOR ELECTRICAL DISCHARGE PROCESSING
When checking the board, for the electric shock prevention, con-
nect the resistors to both ends of respective capacitor (C914 or
C915) to discharge the capacitor (C914 or C915).
When checking the board, for the electric shock prevention, con-
nect the resistors to both ends of respective capacitor (C914 or
C915) to discharge the capacitor (C914 or C915).
– POWER Board (Conductor Side) –
(US and Canadian models)
(US and Canadian models)
– POWER Board (Conductor Side) –
(AEP, UK, Australian and Singapore models)
(AEP, UK, Australian and Singapore models)
C914
C915
800
:/2 W
800
:/2 W
Ver. 1.1
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