Servicing Notes - Sony STR-KM22 Service Manual

STR-KM22/KM55/KM77
Ver. 1.1
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be da-
maged by heat.
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 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 identifi ed by mark 9 contain confi dential
information.
Strictly follow the instructions whenever the components are
repaired and/or replaced.
NOTE OF REPLACING THE IC2010 AND IC2700 ON
THE MAIN BOARD
IC2010 and IC2700 on the MAIN board cannot exchange with
single. When these parts on the MAIN board are damaged, ex-
change the entire mounted board.
NOTE OF REPLACING THE IC3009 ON THE HDMI
RE PC BOARD
IC3009 on the HDMI RE PC board cannot exchange with single.
When these parts on the HDMI RE PC board are damaged, ex-
change the entire mounted board.
NOTE OF REPLACING THE IC5001 ON THE DSP
BOARD
IC5001 on the DSP board cannot exchange with single. When
these parts on the DSP board are damaged, exchange the entire
mounted board.
4
SECTION 1

SERVICING NOTES

MODEL IDENTIFICATION
– Rear View –
Model
KM77: SAF
KM77: SP
KM77: AUS
KM77: E51
KM77: AR
KM55: E12
KM55: SAF
KM55: EA
KM55: E51
KM55: AR
KM55: TH
KM22: SAF
KM22: EA
KM22: SP
KM22: TH
KM22: E51
KM22: AR
• Abbreviation
AR
AUS
E12
E51
EA
SAF
SP
TH
: Argentina model
: Australian model
: 220-240 V AC area in E model
: Chilean and Peruvian models
: Saudi Arabia model
: South African model
: Singapore model
: Thai model
Part No.
Part No.
4-485-866-0[]
4-485-866-2[]
4-485-866-3[]
4-485-866-5[]
4-485-866-7[]
4-489-706-1[]
4-489-706-2[]
4-489-706-3[]
4-489-706-5[]
4-489-706-7[]
4-489-706-9[]
4-489-707-0[]
4-489-707-1[]
4-489-707-2[]
4-489-707-4[]
4-489-707-5[]
4-489-707-8[]