LG WT-80PV Service Manual ▷ View online
3. Specifications
Model
T8504DE,WT-80PV,WT-70PS
Power supply
220~, 50HZ
Input power
WASH POWER 430W, SPIN POWER 240W
Capacity
T8504DE(8.5kg),WT-80PV(8.0kg) ,WT-70PS(7.0kg)
Size (mm)
540×540×935
(L×W×H)
Water level
10 LEVEL
Water usage
148L(high water level, RINSE for 1 times )
Water tab pressure
0.2kgf/cm²~8kgf/cm²
Washing model
Improving turbo drum washing , intelligence sense
Control model
FUZZY logic control
SPIN speed
690-720RPM
Program
FUZZY(NORMAL), POWER WASH, QUICK WASH, WOOL, INTELLIGENT WASH,
SILENT, CAUSAL WASH, TUB CLEAN
Filter
2
Softener
Automatic
PC board displays
Yes
Accessories
Water supply hose(1)
Drain hose(1)
Rat-proof base(1)
Bolt(1)
5
3. Feature and technique instruction
3-1. DD
Centrifugal
Washing
WASH PROCESS
WASH PRINCIPLE
Soils
Centrifugal flow cross
through laundry
through laundry
Tub rotates
Drive tub to rotate directly through
DD motor. Stream crosses through
laundry and injects from the top of
tub.
DD motor. Stream crosses through
laundry and injects from the top of
tub.
Laun
STR
The stream takes away stains on the laundry
3-2.
DD Inverter DC Motor
■ DD Inverter DC Motor sets magnet on rotor and winds coils on stator, whose current is
controlled by sensor and control chips instead of traditional brush.
controlled by sensor and control chips instead of traditional brush.
6
■
Structure of DD Inverter DC Motor
`
Rotor
Motor
Sensor module
Coil
Stator
Magnet
■
Working Principle
Motor speed is controlled by the signal width of pulse.
Oscillogram
(Low rotate speed )
Narrow pulse width
(Low rotate speed)
Oscillogram
(High- rotate
speed )
Broad pulse width
(High- rotate speed )
7
3-3. Electronic Brake Systems
Electronic Brake System is braked by reverse current of motor.
Capacitance
<Host PC board>
control chips
* 3-4. Structure and working principle of drain valve
■ Start
draining:
starting with turning motor rotor and pulling the drain valve to
(as seen below)
Stop draining: End with turning rotor to initial point to close the valve and stop draining.
Drain motor
Drain valve rod
Rotor
Drain valve inlet
Bellows
<Structure
of
drain
motor>
<circuit
of
drain
motor>
* For non pump model
■ Features
●
Drain motor rotor can only be rotated counterclockwise when power is on.
●
For easy maintenance, Drain motor rotor can only be rotated counterclockwise when power is
on.
●
●
The function of inside button in motor is to sensor the initial position。 The “POWER OFF”is
at the position of stopping draining.
● Rotor shall finally return to original position and stop draining when pressing “START/PAUSE”
or “POWER” button. But it does not work while unplugging the power or power failure and
restart when power is on.
● Rotor shall finally return to original position and stop draining when pressing “START/PAUSE”
or “POWER” button. But it does not work while unplugging the power or power failure and
restart when power is on.
● During
maintenance， turn counterclockwise
to implement forced drainage.
8
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