Sony STR-DN1080 Service Manual page 6

STR-DN1080/ZA810ES
Ver. 1.3
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.
NOTE OF REPLACING THE FUSE
The fuse is or could be in the neutral. When a fuse is being re-
placed, the main plug shall be disconnected from the AC outlet to
prevent electric shock.
CAPACITOR ELECTRICAL DISCHARGE PROCESSING
Before checking the operation of the boards for the electric shock
prevention, perform the electrical discharge processing by con-
necting the resistor at both ends of capacitor with referring to the
fi gure below.
Note: Be sure to use a resistor of 800  or higher for electrical discharge.
– MAIN Board (Conductor Side) –
6
SECTION 1
SERVICING NOTES
CHANGE OF MB-1613 BOARD
The MB-1613 board has been changed in the midway of produc-
tion.
When distinguishing the MB-1613 board for before changing and
after changing, check the Part No. of board.
Before changing : Type-11 (Refer to printed wiring board on pages
After changing : Type-21 (Refer to printed wiring board on pages
– MB-1613 Board (Side A) –
MODEL IDENTIFICATION
Distinguish by Part No. and Destination code on the back panel of
the main unit.
– Back Panel –
Model
800 /2 W
C937
STR-DN1080
C936
800 /2 W
STR-ZA810ES
DESTINATION ABBREVIATIONS
The following abbreviations for model destinations are used in this
service manual.
• Abbreviations
AUS
CND : Canadian model
TW
60, 61)
62, 63)
Destination code
Destination
Part No.
US, CND 4-686-509-0[]
AEP, UK 4-686-509-1[]
AUS 4-686-509-2[]
TW 4-686-509-5[]
US, CND 4-686-509-4[]
: Australian and New Zealand models
: Taiwan model
1-981-459-11: Type-11
1-981-459-21: Type-21
Part No.
Destination
code
UC2
CEL/CEK
AU1
TW2
UC2
SYS SET