Sony GTK-XB5, Service Manual

Page: 4 / 46

GTK-XB5
4
SECTION 1
SERVICING NOTES
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.
REPAIRING THE BOARDS
When each board installed in this unit is defective, replace the
mounted board.
Individual electrical parts that mounted on the each board cannot
be replaced.
Printed wiring board and schematic diagram that have been de-
scribed on this service manual are for reference.
NOTE OF REPLACING THE MAIN BOARD OR THE NFC
BOARD
When replacing the MAIN board or the NFC board, be sure to
replace the MAIN board and the NFC board simultaneously.
The MAIN board or the NFC board cannot replace with single.
Among the repair parts, the MAIN board and the NFC board are
supplied as one unit.
MODEL IDENTIFICATION
Distinguish by Part No. and destination code on the rear side of
the main unit.
– Rear view –
US, CND, RU, SP6, TW, AR, KR, LA
MODEL NUMBER LABEL
Part No.
Destination code
SONY®
AEP, UK, E4, E93
SONY®
Part No.
Destination code
AUS
SONY®
Part No.
Destination code
Part No.
Destination code
(LA)
Part No.
Destination code
(US, CND, RU, SP6, TW, AR)
(KR)
Destination Part No.
Destination
code
US, CND models (UC2)
4-597-924-0
[]
UC2
AEP, UK models (CEL, CEK)
4-597-925-0
[]
CEL/CEK
RU, SP6 models (RU1, SP6) 4-597-926-0
[]
RU1/SP6
E4, E93 models (E4, E93) 4-597-927-0
[]
E4/E93
AR model (AR2) 4-597-929-0
[]
AR2
LA model (LA9) 4-597-930-0
[]
LA9
KR model (KR2) 4-597-931-0
[]
KR2
AUS model (AU1) 4-687-946-0
[]
AU1
TW model (TW2) 4-694-105-0
[]
TW2
DESTINATION ABBREVIATIONS
The following abbreviations for model destinations are used in this
service manual.
• Abbreviations
AR :
Argentina model
AUS : Australian and New Zealand models
CND : Canadian and Puerto Rican models
E4
: Middle East area (Bahrain, Lebanon, Libya, Oman, Paki-
stan, Qatar, Syria, Yemen) and African area (Algeria, An-
gola, Egypt, Ethiopia, Morocco, Tunisia) models
E93 : Middle East area (Iraq, Kuwait, Saudi Arabia, UAE) and
African area (Kenya, Nigeria, Tanzania) models
LA : Latin America area (Except for Argentina, Puerto Rico) model
KR : Korean model
RU : Russian model
SP6 : Southeastern Asian area (Except for India,Thailand) model
TW : Taiwan model
Ver. 1.4