FST-GTK17IP, FST-GTK37IP, RDH-GTK17IP, RDH-GTK37IP - Sony Audio Service Manual (repair manual). Page 4

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FST-GTK17iP/GTK37iP/RDH-GTK17iP/GTK37iP
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 
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.
MODEL  IDENTIFICATION
Model
Power requirements
GTK17iP: AEP, UK, AUS
AC:120 - 240V - 50/60Hz 60W
GTK17iP: RU
-
 120 - 240V 50/60Hz 60W
GTK17iP: EA, SP6
AC:120 - 240V - 50/60Hz 60W
GTK17iP: MX
ca 120 - 240V - 60Hz 60W
GTK37iP: US
AC:120V - 60Hz 80W
GTK37iP: E2, E51
AC:120 - 240V - 50/60Hz 80W
GTK37iP: MX
ca 120 - 240V - 60Hz 80W
GTK37iP: AUS
AC:120 - 240V - 50/60Hz 80W
• Abbreviation
 AUS : 
Australian 
model
  E2 
: 120 V AC area in E model
  E51 
: Chiliean, Peruvian and PX models
  MX 
: Mexican model
  MY 
: Malaysia model
  RU 
: Russian model
  SAF  : South African model
 TH  : 
Thai 
model
THE  OPERATION  CHECK  AFTER  REPAIR
After repair is completed, connect corresponding “iPhone” etc. 
to this unit and perform operation checks (playback, recording, 
charging, etc.).
NOTE  OF  PERFORMING  THE  OPERATION  CHECK
Don’t perform the operation check in the state where the heat sink 
was removed from this unit, by any means. When the operation 
check is performed, be sure to fi x the heat sink to the board in 
advance.
NOTE  OF  REPLACING  THE  IC702  ON  THE  MAIN  
BOARD  AND  THE  COMPLETE  MAIN  BOARD
When IC702 on the MAIN board and the complete MAIN board 
are replaced, it is necessary to spread the compound between parts 
and heat sink.
Part No.
   
Description
7-300-009-67 
THERMAL COMPOUND (TIG2000)
Spread the compound referring to the fi gure below.
– Bottom side view –
Power requirements
Displayed characters/
  values are example.
The written example of 
model number label.
Displayed characters/
  values are example.
The written example of 
stamp.
Power requirements
 
R
– MAIN Board (Component Side) –
IC702
IC702
Ver. 1.1
Note: Refer to Supplement-1 for adding SERVICING NOTES.
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