STR-DN1080/ZA810ES
6
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.
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) –
C936
C937
800
:
/2 W
800
:
/2 W
The SERVICING NOTES contains important information for servicing. Be sure to read this section before repairing the unit.
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
60, 61)
After changing : Type-21 (Refer to printed wiring board on pages
62, 63)
– MB-1613 Board (Side A) –
1-981-459-11: Type-11
1-981-459-21: Type-21
MODEL IDENTIFICATION
Distinguish by Part No. and Destination code on the back panel of
the main unit.
– Back Panel –
Destination code
Part No.
Model
Destination
Part No.
Destination
code
STR-DN1080
US, CND
4-686-509-0
[]
UC2
AEP, UK
4-686-509-1
[]
CEL/CEK
AUS
4-686-509-2
[]
AU1
TW
4-686-509-5
[]
TW2
STR-ZA810ES
US, CND
4-686-509-4
[]
UC2
DESTINATION ABBREVIATIONS
The following abbreviations for model destinations are used in this
service manual.
• Abbreviations
AUS : Australian and New Zealand models
CND : Canadian model
TW :
Taiwan
model
Ver. 1.3
SYS SET
2020/11/17 21:24:35 (GMT+09:00)
