STR-KM22/KM55/KM77
4
SECTION 1
SERVICING NOTES
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.
MODEL IDENTIFICATION
Part No.
Rear View –
Model Part No.
KM77: SAF
4-485-866-0[]
KM77: SP
4-485-866-2[]
KM77: AUS
4-485-866-3[]
KM77: E51
4-485-866-5[]
KM77: AR
4-485-866-7[]
KM55: E12
4-489-706-1[]
KM55: SAF
4-489-706-2[]
KM55: EA
4-489-706-3[]
KM55: E51
4-489-706-5[]
KM55: AR
4-489-706-7[]
KM55: TH
4-489-706-9[]
KM22: SAF
4-489-707-0[]
KM22: EA
4-489-707-1[]
KM22: SP
4-489-707-2[]
KM22: TH
4-489-707-4[]
KM22: E51
4-489-707-5[]
KM22: AR
4-489-707-8[]
• Abbreviation
AR : Argentina model
AUS : Australian model
E12 : 220-240 V AC area in E model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
SAF : South African model
SP : Singapore model
TH : Thai model
Ver. 1.1
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