STR-KM5, STR-KM7 - Sony Audio Service Manual (repair manual). Page 4

NOTE  OF  REPLACING  THE  IC2036  AND  IC2811  ON  
THE  DIGITAL  AUDIO  BOARD
IC2036 and IC2811 on the DIGITAL AUDIO board cannot 
exchange with single. When these parts on the DIGITAL AUDIO 
board are damaged, exchange the entire mounted board.

NOTE  OF  REPLACING  THE  IC3500  AND  IC3501  ON  
THE  HDMI  RE  PC  BOARD
IC3500 and IC3501 on the HDMI RE PC board cannot exchange 
with single. When these parts on the HDMI RE PC board are 
damaged, exchange the entire mounted board.

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)

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 viscou-s (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.

Special Component Notice
The components identified by mark 

9 contain confidential

information.
Strictly follow the instructions whenever the components are
repaired and/or replaced.

Notes on chip component replacement
• 

Never reuse a disconnected chip component.

• 

Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.

Note: Refer to SUPPLEMENT-1 for adding SERVICING NOTES 

(TROUBLESHOOTING)

KM7: SAF

4-299-205-0[]

KM7: EA

4-299-205-1[]

KM7: AUS

4-299-205-2[]

KM7: SP

4-299-205-4[]

KM7: AR

4-299-205-5[]

KM5: SAF

4-409-904-0[]

KM5: TH

4-409-904-1[]

KM5: EA

4-409-904-2[]

KM5: E12

4-409-904-3[]

KM5: E51

4-409-904-4[]

KM5: AR

4-409-904-5[]

KM5: US

4-409-904-6[]

DISPLAY BOARD DISCRIMINATION
In this set, the DISPLAY board has two suffi x  number. 
The Suffi x-12 is for KM5: E12, SAF, EA, TH, E51, AR / KM7 
models. While Suffi x-21 is for KM5: US model.
Repair after distinguishing each DISPLAY board suffi x number to 
doing the repair referring to the following.

• Abbreviation
  E12 

: 220 - 240V AC area in E model

  E51 

: Chilean and Peruvian models

 AR  : 

Argentina 

model

 AUS : 

Australian 

model

  EA 

: Saudi Arabia model

  SAF 

: South African model

  SP 

: Singapore model

 TH  : 

Thai 

model