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Samsung SR-S20DTD - Ice Maker Circuit Details

Samsung SR-S20DTD
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10-3)
ICE-MAKER
Circuit
Part
(Limited
to
equipped
model)
TMP87CK40
eer
eee
we ew
eK
ICE-MAKER
KIT
EJECT-MOTOR
nN
THERMISTOR(EJECTING)
HORVINV
Sw
LEVER
SAW
on
Above
ice-maker
circuit
is
one
about
a
kit
which
is
equipped
at
the
freezer.
Water
supply
to
ice-making
container
is
performed
by
operating
AC
solenoid
which
is
located
in
the
machine
room
through
relay
so
that
water
is
supplied
by
open/close
time
of
valve.
This
circuit
is
H/W
for
embodiment
of
functions
such
as
eject
of
ice-
making
container,
horizontal
levelling,
ice-making
temperature
sensing
and
full-ice
sensing.
Temperature
sensing
part
is
identical
to
that
of
the
main
H/W,
and
horizontal(Hor/Inv)
S/W,
Ice-check(Lever)
S/W
and
sensing
circuit
are
identical
to
those
of
the
main
HW.
So,
explanation
about
this
is
omitted
here,
and
only
ice-eject
motor
driving
circuit
part
is
explained.
When
rotating
motor
in
the
counter-clockwise
direction(CCW),
if
signal
of
Micom
Port
No
#10
is
outputted
to
High.
When
pressure
of
IC05
is
applied,
the
voltage
is
applied
of
+12V
by
output
of
ICO5
17,
and
the
current
is
supplied
to
1C04
of
@
through
motor.
At
this
time,
©
terminal
of
1C04
is
connected
with
CCW
Port
together
so
that
output
port
of
the
corresponding
IC04
@
is
turned
on.
Therefore,
current
flows
to
the
ground
and
motor
rotates
inversely.
When
it
moves
to
clockwise
direction(CW),
CW
Port
#9
is
outputted
by
“HIGH”.
The
functions
of
ice-eject
and
horizontal
levelling
are
performed
by
the
operation
of
IC
Port
through
right
direction
rotation
movement.
For
the
points
related
with
operation
of
above
circuit,
refer
to
the
explanation
of
ice-
maker
function
of
our
SVC
Manual.

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