Lg L1204r Service Manual

Internal Use Only

http://biz.lgservice.com

Room Air Conditioner

SVC MANUAL(Exploded View)

MODEL : WR-8030 WM-8031 WM-1031 WR-1230 WM-1231 WR-1030 HBLG8003R HBLG1003R R1200M L1204R R1200E

CAUTION

Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

CONTENTS

1. PREFACE

1.1 SAFETY PRECAUTIONS................................2

1.2 INSULATION RESISTANCE TEST .................2

1.3 SPECIFICATIONS...........................................3

1.4 FEATURES......................................................4

1.5 CONTROL LOCATIONS .................................4

2.

DISASSEMBLY INSTRUCTIONS

2.1 MECHANICAL PARTS ....................................6

2.1.1 FRONT GRILLE .....................................6

2.1.2 CABINET ................................................6

2.1.3 CONTROL BOX .....................................6

2.2 AIR HANDLING PARTS ..................................7

2.2.1 AIR GUIDE AND TURBO FAN...............7

2.2.2 FAN ........................................................7

2.2.3 SHROUD ................................................8

2.3 ELECTRICAL PARTS......................................8

2.3.1 OVERLOAD PROTECTOR ....................8

2.3.2 COMPRESSOR......................................8

2.3.3 CAPACITOR...........................................9

2.3.4 POWER CORD ......................................9

2.3.5 MOTOR ................................................10

2.4 REFRIGERATION CYCLE ............................10

2.4.1 CONDENSER.......................................10

2.4.2 EVAPORATOR.....................................10

2.4.3 CAPILLARY TUBE ...............................11

3.

INSTALLATION

3.1 SELECT THE BEST LOCATION...................13

3.2 CHECK OF INSTALLATION..........................13

3.3 HOW TO DRAIN............................................13

3.4 HOW TO INSTALL ........................................14

3.4.1 WHEN USING GASKET.......................14

3.4.2 WHEN USING INSTALLATION KITS...14

4.

TROUBLESHOOTING GUIDE

4.1 OUTSIDE DIMENSIONS ...............................17

4.2 PIPING SYSTEM...........................................18

4.3 TROUBLESHOOTING GUIDE ......................19

5. SCHEMATIC DIAGRAM

5.1 CIRCUIT DIAGRAM ......................................27

5.2 ELECTRONIC CONTROL DEVICE...............28

5.3

COMPONENTS LOCATION(FOR MAIN P.C.B ASM)

COMPONENTS LOCATION(FOR DISPLAY P.C.B ASM)

5.4

..29

...29

6. EXPLODED VIEW ..................................30

1. PREFACE

This

SERVICE MANUAL provides various service information, including the mechanical and electrical

parts etc. This room air conditioner was manufactured and assembled under a strict quality control system. The refrigerant is charged at the factory. Be sure to read the safety precautions prior to servicing the unit.

1.1 SAFETY PRECAUTIONS

1. When servicing the unit, set the ROTARY SWITCH or POWER SWITCH to OFF and unplug the power cord.

2. Observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit.

3. After servicing the unit, make an insulation resistance test to protect the customer from being exposed to shock hazards.

1.2

INSULATION RESISTANCE TEST

1. Unplug the power cord and connect a jumper between 2 pins (black and white).

2. The grounding conductor (green) is to be open.

3. Measure the resistance value with an ohm meter between the jumpered lead and each exposed metallic part on the equipment at all the positions (except OFF) of the ROTARY SWITCH.

4. The value should be over 1MΩ.

- 2 -

LGE Internal Use Only

1.3 SPECIFICATIONS

1.3.1 FOR WR-8030, WM-8031, WM-1031, WR-1230, WM-1231, HBLG8003R, HBLG1003R, WR-1030, R1200M, L1204R, R1200E

MODELS

ITEMS

POWER SUPPLY

COOLING CAPACITY (Btu/h)

INPUT (W)

RUNNING CURRENT (A)

E.E.R (BTU/W.h)

OPERATING INDOOR (°C)

CONDITION OUTDOOR (°C)

REFRIGERANT (R-22) CHARGE

EVAPORATOR

CONDENSER

FAN, INDOOR

FAN, OUTDOOR

FAN SPEEDS, FAN/COOLING

FAN MOTOR

WR-8030

300g(10.6oz)

2 ROW 11STACKS

WM-8031

HBLG8003R

8,000 10,000 12,000 10,000

800 1,020 1,220 1,020

7.3 9.2 11.0 9.2

10 9.8

2 ROW 16STACKS

PROPELLER TYPE FAN WITH SLINGER RING

2/3 3/3 2/3 3/3 2/3

WM-1031

HBLG1003R

1ø, 115, 60Hz

26.7(DB)* 19.4(WB)**

35(DB)* 23.9(WB)**

520g(18.3oz)

3 ROW 11STACKS

TURBO FAN

WR-1230 R-1200M

470g(16.6oz)

2 ROW 12STACKS

2 ROW 17STACKS

6 POLES

WM-1231

L1204R R1200E

WR1030

520g(18.3oz)

3 ROW 11STACKS

2 ROW 16STACKS

OPERATION CONTROL

ROOM TEMP. CONTROL

AIR DIRECTION CONTROL

CONSTRUCTION

PROTECTOR

POWER CORD

DRAIN SYSTEM

NET WEIGHT (lbs/kg)

OUTSIDE DIMENSION (inch)

(W xH xD) (mm)

* DB:Dry Bulb **

WB:Wet Bulb

COMPRESSOR

FAN MOTOR

ROTARY SWITCH

THERMOSTAT THERMISTOR THERMOSTAT THERMISTOR THERMOSTAT

REMOTE CONTROLLER

VERTICAL LOUVER (RIGHT & LEFT)

HORIZONTAL LOUVER (UP & DOWN)

SLIDE IN-OUT CHASSIS

OVERLOAD PROTECTOR

INTERNAL THERMAL PROTECTOR

(3 WIRE WITH GROUDING)

ATTACHMENT PLUG (CORD-CONNECTED TYPE)

DRAIN PIPE OR SPLASHED BY FAN SLINGER

203/32 x 1329/32 x 193/8

510 x 354 x 490

ROTARY SWITCH

62/28

REMOTE CONTROLLER

ROTARY SWITCH

- 3 -

LGE Internal Use Only

1.4 FEATURES

OPERATIONTHERMOSTAT

OFF

HIGH

COOL

MED

COOL

LOW COOL

MED

FAN

LOW

FAN

Air

Purifier

Power

Temp

Sleep Mode

Timer

Auto

Swing

Fan Speed

AIR

PURIFIER

7 1

2

3

4

8

5

Powe r

Temp

Fan Speed

Timer Mode

˚C

TIMER POWERMODE

TEMP

FAN

SPEED

F1 LOW F2 MED F3 HIGH

Dry Timer

Fan

Energy

Saver

Cool

1

2

6

3 45

1

2

3

4

5

• Designed for COOLING ONLY.

• Powerful and whispering cooling.

• Slide-in and slide-out chassis for the simple installation and service.

• Low air-intake, top cooled-air discharge.

1.5 CONTROL LOCATIONS

• THERMOSTAT

Thermostat will automatically control the temperature of the room. Select a higher number (the right side of arc) for a cooler temperature in the room. The temperature is selected by positioning the knob to the desired position. The 5 or 6 position is a normal setting for average conditions.

• OPERATION

OFF : Turns the air conditioner to off.

MED FAN : Permits the medium fan speed operation

without cooling.

• Built-in adjustable Thermistor

• Washable one-touch filter

• Compact size

• Reliable and efficient rotary compressor is equipped.

LOW FAN : Permits the low fan speed operation

without cooling.

HIGH COOL : Permits cooling with the high fan speed

operation.

MED COOL : Permits cooling with the medium fan

speed operation.

LOW COOL : Permits cooling with the low fan speed

operation.

DISPLAY

- 4 -

REMOTE CONTROL

LGE Internal Use Only

6

7

8

Precaution: The Remote Control unit will not function properly if strong light strikes the sensor window of the air

conditioner or if there are obstacles between the Remote Control unit and the air conditioner.

POWER BUTTON

To turn the air conditioner ON, push the button. To turn the air conditioner OFF, push the button again. This button takes priority over any other buttons.

ROOM TEMPERATURE SETTING BUTTON

This button can automatically control temperature of the room. The temperature can be set within a range of 16°C to 30°C by 1°C Select the lower number for lower temperature of the room.

OPERATION MODE SELECTION BUTTON

Every time you push this button, it will shift among COOL, ENERGY SAVER, FAN and DRY.

-

Energy Saver: If Energy Save mode is selected, the fan stops when the compressor stops cooling.

Approximately every 3 minutes the fan will turn on and check the room air to determine if cooling is needed.

FAN SPEED SELECTOR

Every time you push this button, it is set as follows. (Hi ➔ Low ➔ Med ➔ Hi ➔ Low ➔...)

ON/OFF TIMER BUTTON

You can set the time when the unit will turn on or turn off automatically by pressing the timer button. If the unit is operating, this button controls the time it will be turned off. If the unit is off state, this button controls the time it will start. Every time you push this button, the remaining time will be set as follows.

- Stopping operation (1Hour ➔ 2Hours ➔ 3Hours ➔ 4Hours ➔ 5Hours ➔ 6Hours ➔ 7Hours ➔ 8Hours ➔ 9Hours ➔ 10Hours ➔ 11Hours ➔

12Hours ➔ 0Hour ➔ 1Hour ➔ 2Hours ➔... )

- Starting operation (1Hour ➔ 2Hours ➔ 3Hours ➔ 4Hours ➔ 5Hours ➔ 6Hours ➔ 7Hours ➔ 8Hours ➔ 9Hours ➔ 10Hours ➔ 11Hours ➔

12Hours ➔ off ➔ 1Hour ➔ 2Hours ➔ ... )

REMOCON SIGNAL RECEIVER

AIR PURIFIER

• Press the Air Purifier button. Operation will start when the button is pressed and stop when the button is pressed again.

• Set the fan speed with the remote control. You can select the fan speed in three steps high, low or medium. Each time the button is pressed, the fan speed mode is shifted.

• If you press the only Air Purifier button, only air purifying operates. Then, fan speed is low. You can select the fan speed in three steps high, low or medium. Each time the button is pressed, the fan speed mode is shifed.

SLEEP MODE

• Press the sleep mode button to set the time you want the unit to turn off automatically.

• Every time you push this button, the remaining time will be set as follows.

(1Hour ➔ 2Hours ➔ 3Hours ➔ 4Hours ➔ 5Hours ➔ 6Hours ➔ 7Hours ➔ 0Hour ➔ 1Hour ➔ 2Hours ➔

...

)

• The temperature setting will be raised by 2˚F in 30 minutes and by 4˚F in 1 hour to prevent overcooling during sleep.

- 5 -

LGE Internal Use Only

T

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M O

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2. DISASSEMBLY INSTRUCTIONS

— Before the following disassembly, POWER SWITCH set to OFF and disconnect the power cord.

2.1 MECHANICAL PARTS

2.1.1 FRONT GRILLE

1. Open the lnlet grille downward and remove the air filter.

2. Remove the screw which fastens the front grille.(See Figure 1)

3. Pull the front grille from the right side.

4. Remove the front grille.(There are 4 hooks.)

5. Re-install the components by referring to the removal procedure, above.

2.1.2 CABINET

1. After disassembling the FRONT GRILLE, remove the 2 screws which fasten the cabinet at both sides.

2. Remove the 2 screws which fasten the cabinet at back.

3. Pull the base pan forward. (See Figure 2)

4. Remove the cabinet.

5. Re-install the components by referring to the removal procedure, above.

Figure 1

2.1.3 CONTROL BOX

1. Remove the front grille. (Refer to section 2.1.1)

2. Remove the cabinet. (Refer to section 2.1.2)

3. Remove the 2 screws which fasten the power cord.

4. Disconnect the grounding screw from the evaporator channel.

5. Remove the 1 screw which fasten the control box cover.

6. Remove the housing which connects PCB and motor wire in the control box.

7. Disconnect the housing which connects Plazma Air Purifier.(Optional)

8. Remove the screw at left cover of filter case and open the cover to remove inner screw. (Optional)

9. Remove the nut which fastens the terminal cover.

10. Remove the terminal cover.

11. Remove all the leads from the overload protector.

12. Discharge the capacitor by placing a 20,000 ohmresistor across the capacitor terminals.

13. Raise the control box upward completely. (See Figure 3)

14. Re-install the components by referring to the removal procedure, above. (Refer to the circuit diagram found on page 27 in this manual and on the control box.)

- 6 -

Figure 2

Figure 3

LGE Internal Use Only

2.2 AIR HANDLING PARTS

2.2.1 AIR GUIDE AND TURBO FAN

1. Remove the front grille. (Refer to section 2.1.1)

2. Remove the cabinet. (Refer to section 2.1.2)

3. Remove the control box. (Refer to section 2.1.3)

4. Remove the 4 screws which fasten the brace.

5. Remove the brace.

6. Remove the 2 screws which fasten the air guide upper.

7. Remove the air guide upper.(See figure 4)

8. Remove the 2 screws which fasten the evaporator.

9. Move the evaporator forward and pulling it upward slightly. (See Figure 5)

10. Pull out the hook of orifice by pushing the tabs

and remove it. (See Figure 6)

11. Remove the clamp with a hand plier which

secures the turbo fan.

12. Remove the turbo fan.

13. Remove the 2 screws which fasten the air guide

from the base pan.

14. Move the air guide backward, and pull out from

the base pan.(Move the air giude lower carefully.)

15. Re-install the components by referring to the

removal procedure, above.

Figure 4

2.2.2 FAN

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the brace (Refer to section 2.2.1)

3. Remove the 5 screws which fasten the condenser.

4. Move the condenser to the left carefully.

5. Remove the clamp which secures the fan.

6. Remove the fan. (See Figure 7)

7. Re-install by referring to the removal procedure.

Figure 5

Figure 6

- 7 -

Figure 7

LGE Internal Use Only

2.2.3 SHROUD

1. Remove the fan. (Refer to section 2.2.2)

2. Remove the shroud. (See Figure 8)

3. Re-install the components by referring to the removal procedure, above.

2.3 ELECTRICAL PARTS

2.3.1 OVERLOAD PROTECTOR

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the nut which fastens the terminal cover.

3. Remove the terminal cover. (See Figure 9)

4. Remove all the leads from the overload protector.

5. Remove the overload protector.

6. Re-install the components by referring to the removal procedure, above.

Figure 8

Figure 9

2.3.2 COMPRESSOR

1. Remove the cabinet. (Refer to section 2.1.2)

2. Discharge the refrigerant system using a Freon Recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the FreonTM. Leave the valve in place after servicing the system.

3. Remove the overload protector. (Refer to section

2.3.1)

4. After purging the unit completely, unbraze the suction and discharge tubes at the compressor connections.

5. Remove the 3 nuts and the 3 washers which fasten the compressor.

6. Remove the compressor. (See Figure 10)

7. Re-install the components by referring to the removal procedure, above.

TM

Figure 10

- 8 -

LGE Internal Use Only

2.3.3 CAPACITOR

DEFROST

HEAT

CO

OL

IND

OO

R

DE

SIRED

EN

ER

GY

SA

VE

R

A

IR

P

URY

F

IER

AU

T

O

RE

S TART

FAN

DRY

T I M

E

M O

D E

T

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P

P O

W

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F A

N

S P

E E D

COO

L

I N

D O O

R

D E S

I R E

D

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E R G

Y

S A

V E

R

A

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P U R

Y F I

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A

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R E S

T A

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FA

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FA

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D RY

H

EA

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D EF

R O

S T

1. Remove the control box. (Refer to section 2.1.3)

2. Open the top cover from the control box. (See Figure 11)

3. Pull out the capacitor from the control box.

4. Disconnect all the leads of capacitor terminals.

5. Re-install the components by referring to the removal procedure, above.

2.3.4 POWER CORD

1. Remove the control box. (Refer to section 2.1.3)

2. Open the top cover from the control box. (Refer to section 2.3.3)

3. Disconnect the front panel from the control box. (See Figure 12)

4. Disconnect two leads from the capacitor and relay.

5. Pull out the power cord.

6. Re-install the component by referring to the above removal procedure, above. (Use only one ground-marked hole for ground connection.)

7. If the supply cord of this appliance is damaged, it must be replaced by the special cord. (The special cord means the cord which has the same specification marked on the supply cord attached at the unit.)

Figure 11

- 9 -

Figure 12

LGE Internal Use Only

2.3.5 MOTOR

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the turbo fan. (Refer to section 2.2.1)

3. Remove the fan. (Refer to section 2.2.2)

4. Remove the 4 screws which fasten the motor from the air guide. (See Figure 13)

5. Remove the motor.

6. Re-install the components by referring to the removal procedure, above.(See Figure 13)

2.4 REFRIGERATING CYCLE

2.4.1 CONDENSER

CAUTION

Discharge the refrigerant system using a FreonTMRecovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the FreonTM. Leave the valve in place after servicing the system.

1. Remove the cabinet. (Refer to section 2.1.2)

2. Remove the 5 screws which fasten the brace.(Refer to section 2.2.1)

3. Remove the 5 screws which fasten the condenser and shroud.

4. After discharging the refrigerant completely, unbraze the interconnecting tube at the condenser connections.

5. Remove the condenser.

6. Re-install the components by referring to notes. (See Figure 14)

2.4.2 EVAPORATOR

1. Remove the control box.(Refer to section 2.1.3)

2. Remove the air guide upper. (Refer to section

2.2.1)

3. Remove the 2 screws which fasten the evaporator.

4. Move the evaporator sideways carefully. (Refer to section 2.2.1)

5. After discharging the refrigerant completely, unbraze the interconnecting tube at the evaporator connections.

6. Remove the evaporator.

7. Re-install the components by referring to notes. (See Figure 15)

Figure 13

Figure 14

- 10 -

Figure 15

LGE Internal Use Only

2.4.3 CAPILLARY TUBE

1. Remove the cabinet. (Refer to section 2.1.2)

2. After discharging the refrigerant completely, unbraze the interconnecting tube at the capillary tube.(See caution above)

NOTES

— Replacement of the refrigeration cycle.

1. When replacing the refrigeration cycle, be sure to Discharge the refrigerant system using a Freon recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the FreonTM. Leave the valve in place after servicing the system.

2. After discharging the unit completely, remove the desired component, and unbraze the pinch-off tubes.

3. Solder service valves into the pinch-off tube ports, leaving the valves open.

4. Solder the pinch-off tubes with Service valves.

5. Evacuate as follows.

1) Connect the vacuum pump, as illustrated figure

16A.

2) Start the vacuum pump, slowly open manifold

valves A and B with two full turns counterclockwise and leave the valves open. The vacuum pump is now pulling through valves A and B up to valve C by means of the manifold

and entire system.

CAUTION

If high vacuum equipment is used, just crack valves A and B for a few minutes, then open slowly with the two full turns counterclockwise. This will keep oil from foaming and being drawn into the vacuum pump.

3) Operate the vacuum pump for 20 to 30 minutes,

until 600 microns of vacuum is obtained. Close valves A and B, and observe vacuum gauge for a few minutes. A rise in pressure would indicate a possible leak or moisture remaining in the system. With valves A and B closed, stop

the vacuum pump.

4) Remove the hose from the vacuum pump and

place it on the charging cylinder. See figure 16B. Open valve C. Discharge the line at the manifold connection.

5) The system is now ready for final charging.

TM

3. Remove the capillary tube.

4. Re-install the components by referring to notes.

6. Recharge as follows :

1) Refrigeration cycle systems are charged from the High-side. If the total charge cannot be put in the High-side, the balance will be put in the suction line through the access valve which you installed as the system was opened.

2) Connect the charging cylinder as shown in figure 16B. With valve C open, discharge the hose at the manifold connection.

3) Open valve A and allow the proper charge to enter the system. Valve B is still closed.

4) If more charge is required, the high-side will not take it. Close valve A.

5) With the unit running, open valve B and add the balance of the charge.

a. Do not add the liquid refrigerant to the Low-

side.

b. Watch the Low-side gauge; allow pressure to

rise to 30 lbs. c. Turn off valve B and allow pressure to drop. d. Repeat steps b. and c. until the balance of the

charge is in the system.

6) When satisfied the unit is operating correctly, use the pinch-off tool with the unit still running and clamp on to the pinch-off tube. Using a tube cutter, cut the pinch-off tube about 2 inches from the pinch-off tool. Use sil-fos solder and solder pinch-off tube closed. Turn off the unit, allow it to set for a while, and then test the leakage of the pinch-off connection.

- 11 -

LGE Internal Use Only

Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capable

A

COMPOUND GAUGE

EVAPORATOR (LOW PRESSURE SIDE)

COMPRESSOR

CAPILLARY TUBE

CONDENSER (HIGH PRESSURE SIDE)

SEE INSETS

BELOW

MANIFOLD

GAUGE

B

A

B

EXTERNAL VACUUM PUMP

A

CHARGING CYLINDER

LOW

HI

B

C

of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve.

Figure 16A-Pulling Vacuum

- 12 -

Figure 16B-Charging

LGE Internal Use Only

3. INSTALLATION

3.1 SELECT THE BEST LOCATION

1.To prevent vibration and noise, make sure the unit is installed securely and firmly.

2.Install the unit where the sunlight does not shine directly on the unit.

3.The outside of the cabinet must extend outward for at least 12" and there should be no obstacles, such as a fence or wall, within 20" from the back of the cabinet because it will prevent heat radiation of the condenser. Restriction of outside air will greatly reduce the cooling efficiency of the air conditioner.

CAUTION

All side louvers of the cabinet must remain exposed to the outside of the structure.

4.Install the unit a little slanted so the back is slightly lower than the front (about 1/2"). This will help force con-densed water to the outside.

5.Install the unit from the bottom about 30"~60" above the floor level.

COOLED AIR

30"~60"

Figure 17

AWNING

RADIATION

ABOUT 1/2"

FENCE

HEAT

Over 20"

3.2 CHECK OF INSTALLATION

The setting conditions must be checked prior to initial starting.

The undermentioned items are especially important checking points when the installation is finished.

1. Grounding wire (Green or Green and Yellow) is

provided in the power cord. The green wire must be grounded.

2. Connect to a single-outlet 15A circuit.

(or 20A circuit for Electric Heater Model)

3. To avoid vibration or noise, make sure the air

conditioner is installed securely.

4 Avoid placing furniture or draperies in front of the

air inlet and outlet.

3.3. HOW TO DRAIN (When using drain pipe)

The air conditioner must be installed horizontally or tilted slightly to the outside for proper water drainage.

On exceptionally hot and humid days the air conditioner may overflow condensed water.

If the air conditioner is used in hot and a high humidity zone, exchange the HOLE RUBBER for the DRAIN PIPE.(See figure 18, figure 19.)

Figure 18

Figure 19

BASE PAN

1

HOLE RUBBER

2

HOLE RUBBER

BOTTOM

- 13 -

LGE Internal Use Only

3.4 HOW TO INSTALL

DEFROST

HEATCOOL

INDOORDESIRED

ENERGY SAVER

AIR PURYFIER AUTO RESTART

FAN

DRY

DEFROST

HEATCOOL

INDOORDESIRED

ENERGY SAVER

AIR PURYFIER AUTO RESTART

FAN

DRY

A

B

D

E

F

C

HJ

2

3

4

2

1

G

A

RIGHT SIDE

HORIZONTAL LINE

B

1

2 3 4

8 9

11

765

10

13

12

25" to 36"

15" min

Stool

Interior wall

20

3

/32" min

(Without frame curtain)

Offset

1

/2" to 11/4"

Sill

Exterior

3.4.1 WHEN USING GASKET

1. WINDOW (WIDTH-A, HEIGHT-B)

2. GASKET

4. DETAILS 5.1 x 30 ROUND HEAD WOOD SCREWS

3. WALL

ABCDE F HJK

535mm 366mm 250mm 30mm 0~25mm OVER 420mm 32 5~10mm 0~5mm

(211/2") (147/16") (10") (11/16") (0~1") (OVER 1617/32") (11/4") (3/16"~3/8") (0~3/16")

3.4.2 WHEN USING INSTALLATION KITS

A. WINDOW REQUIREMENTS

This unit is designed for installation in standard double hung windows with actual opening widths from 25" to 36". The top and bottom window sash must open sufficiently to allow a clear vertical opening of 16" from the bottom of the upper sash to the window stool.

B. INSTALLATION KITS CONTENTS

NO. NAME OF PARTS Q'TY

1 FRAME CURTAIN 2 2 SILL SUPPORT 2 3 BOLT 2 4 NUT 2 5 SCREW(TYPE A) 16 6 SCREW(TYPE B) 3 7 SCREW(TYPE C) 5 8 FOAM-STRIP 1

9 FOAM-PE 1 10 UPPER GUIDE 1 11 FOAM-PE 1 12 FRAME GUIDE 2 13

WINDOW LOCKING BRACKET

- 14 -

1

LGE Internal Use Only

SUGGESTED TOOL REQUIREMENTS

Shipping Screws

T I M

E

M O

D E

T E M

P

P O W

E R

F A N

S

P E E

D

C

O O L

IN DO

O R

D E S IR

ED

EN

E RG Y

S A

VE R

A

IR

P U R

YF IE

R

AU

T O

R E ST

A R

T

F A N

F A

N

D R Y

H E A

T D E F

R O S

T

T I M

E

M O D

E

T E M

P

O W E

R

F A

N

S P

E E D

C O O

L

IN

D O O R

D

E S I R

E D

E N E

R G Y

S A

V E R

A

I R

P UR

Y F IE R

A U

T O

R E S

T A R T

F

A N

F A N

D

R Y

H E A

T D E F

R O S T

9

10

13

(Type A)

5

11

9

5

T I M

E

M

O D E

T E M

P

P O W

E R

F A N

S

P E E D

C

O O L

I N D O O

R

D E

S I R E D

E N

E R G Y

S A

V E R

A

I R

P U R

Y F I E

R

A

U T O

R E S

T A R

T

F A N

F

A N

D RY

H E

A T D E F

R O S

T

EPS Material

Upper Guide

Window stool

Front Angle

Window Sash Upper guide

9

Frame Curtain

1

Foam-pe

10

Foam-pe

13

Cabinet

SCREWDRIVER(+, -), RULER, KNIFE, HAMMER, PENCIL, LEVEL

PREPARATION OF CHASSIS

1. Remove the screws which fasten the cabinet at both sides and at the back.

2. Slide the unit out from the cabinet by gripping the base pan handle and pulling forward while bracing the cabinet.

3. Cut the window sash seal to the proper length. Peel off the backing and attach the Foam-Pe to the underside of the window sash.

4. Remove the backing from the top upper guide Foam PE Guide

and attach it to the bottom of the Upper

.

5. Attach the upper guide onto the top of the cabinet with 3 type A screws.

6. Insert the Frame Guides into the bottom of the cabinet.

7. Insert the Frame Curtain into the upper guide and Frame Guides .

8. Fasten the curtains to the unit with 4 Type A screws at the both sides.

CABINET INSTALLATION

1. Open the window. Mark a line on center of the

window stool (or desired air conditioner location). Carefully place the cabinet on the window stool and align the center mark on the front angle with the center line marked in the window stool.

2. Pull the bottom window sash down behind the

upper guide until it meets.

NOTE:

• Do not pull the window sash down so tightly that the

movement of Frame Curtain is restricted.

Figure 20

- 15 -

Figure 21

LGE Internal Use Only

INDOOR OUTDOOR

Sill Support

Nut

Bolt

2

4

3

INDOOR OUTDOOR

12

7

5

Frame Guide

About 1/2"

Screw(Type A)

Cabinet

6

2

About 1/2"

Screw(Type B)5Screw(Type A)

Sill support

Type C

Sash track

Front Angle

Screw(Type B)

6

Sill support

2

3. Loosely assemble the sill support using the parts in

Figure 22.

4. Select the position that will place the sill support near the outer most point on sill (See

Figure

22)

NOTE: Be careful when you install the cabinet

are broken easily).

(Frame Guides

5. Attach the sill support to the cabinet track hole in relation to the selected position using 2 Type A screws in each support (See

6. The cabinet should be installed with a very slight

1

tilt (about

/2") downward toward the outside

(See Figure 24). Adjust the bolt and the nut of Sill Support for balancing the cabinet.

Figure 22

Figure 23).

Figure 23

7. Attach the cabinet to the window stool by

8. Pull each Frame Curtain properly to each

9. Attach each Frame Curtain to the window sash

driving the screws (Type B: Length sixteen millimeters and below.) through the front angle into window stool (5/8").

window sash track, and repeat step 2.

by using screws (Type C). (See Figure 25)

Figure 24

Figure 25

- 16 -

LGE Internal Use Only

DEFROST

HEATCOOL

INDOOR DESIRED

ENERGY SAVER

AIR PURYFIER AUTO RESTART

FAN

DRY

DEFROST

HEATCOOL

INDOOR DESIRED

ENERGY SAVER

AIR PURYFIER AUTO RESTART

FAN

DRY

Screw(Type A)

T I M

E

M O

D E

T E M

P

P O W

E R

F A N

S

P E E

D

C

O O L

I N D O

O R

D E S I

R E D

E N

E R G

Y S A

V

E

R A

I

R P U R

Y

F

I

E

R

A

U

T

O R E S

T

A

R

T

F A N

F A

N

D R Y

H E A

T D E F

R

O

S

T

Screw(Type A)

Power cord

13

8

Foam-Strip

354(13 / ")

29

490(19 / )

3

8"

29(1 / )

5

32"

18( / )

23

32"

126.5(4 / )

31

32"

32

T

I

M

E

M

O

D

E

T

E

M

P

O

W

E

R

F

A

N

S

P

E

D

510

20

3

32

10. Slide the unit into the cabinet.(See Fig. 26)

CAUTION: For security purpose, reinstall screws (Type

A) at the cabinet's sides.

11. Cut the Foam-Strip to the proper length and insert between the upper and lower window sash. (See Fig. 27)

Figure 26

Figure 27

12. Attach the window Locking Bracket with a type C screw. (See Fig. 28)

13. Attach the front grille to the cabinet by inserting the tabs on the grille into the tabs on the front of the cabinet. Push the grille in until it snaps into place.(See Fig. 29)

14. Lift the inlet grille and secure it with a type A screw through the front grille.(See Fig. 30)

Figure 29

Figure 30

Figure 28

4. TROUBLESHOOTING GUIDE

4.1 OUTSIDE DIMENSIONS

unit: mm(inch)

- 17 -

Figure 31

LGE Internal Use Only

4.2 PIPING SYSTEM

MOTOR

COMPRESSOR

OIL

(LIQUID REFRIGERANT)

CAPILLARY TUBE

OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH

SUCTION LINE COOL LOW PRESSURE VAPOR

COOLED AIR

COMPLETE LIQUID BOIL OFF POINT

LIQUID PRESSURE DROP

ROOM AIR HEAT LOAD

VAPOR INLET

HOT DISCHARGED AIR

LIQUID OUTLET

HIGH PRESSURE VAPOR

LIQUID REFRIGERANT

LOW PRESSURE VAPOR

ROOM AIR CONITIONER

EVAPORATOR COILS CONDENSER COILS

CYCLE OF REFRIGERATION

CONDENSER COIL

FAN

CAPILLARY TUBE

MOTOR

COMPRESSOR

TURBO FAN

EVAPORATOR COIL

Figure 32 is a brief description of the important components and their function in what is called the refrigeration system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle.

Figure 32

- 18 -

LGE Internal Use Only

4.3 TROUBLESHOOTING GUIDE

Ineffective Cooling

Check outdoor coil (heat exchanger) & the fan operation.

Check gas leakage.

Repair gas leak.

Replacement of unit if the unit is beyond repair.

Satisfactory operation with temperature difference of inlet & outlet air ; 44~50°F(7~10°C)

Check heat load increase.

Clean condenser.

Not on separate circuit.

Check inside gas pressure.

Adjusting of refrigerant charged.

Malfunction of compressor.

Replacement of compressor.

Check cold air circulation for smooth flow.

Dirty indoor coil (Heat exchanger)

Correct above trouble

Check clogging in refrigeration circuit.

Repair clogging in refrigeration circuit.

Obstruction at air outlet

Clogged of air filter.

Malfunction of fan

In general, possible trouble is classified in two kinds. The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective Air

Conditioning caused by a defect in the refrigeration circuit and improper application.

Unit runs but poor cooling.

- 19 -

LGE Internal Use Only

Fails to Start

Check circuit breaker and fuse.

Gas leakage of feeler bulb of thermostat

Check of control switch.

Fan only fails to start.

Improper wiring.

Defect of fan motor capacitor.

Irregular motor resistance (

). Irregular motor insulation (

).

Replacement of fan motor.

Regular but fails to start.

Replacement of compressor (locking of rotor, metal).

Improper thermostat setting.

Loose terminal connection.

Improper wiring.

Irregular motor resistance ( )

Irregular motor insulation ( )

Replacement of compressor (Motor damaged)

Drop of power voltage.

Capacitor check.

Replacement

Compressor only fails to start.

Defect of compressor capacitor.

Check of power source.

Check of control switch setting.

- 20 -

LGE Internal Use Only

• Check the Fuse.

• Check the wiring diagram.

Is the Trans input power

AC 115V?

Is the Trans output power

about AC 14V?

Is shorted the Trans. output?

Is output Voltage of IC01D

DC 12V?

Is output Voltage of IC02D

DC 5V?

Is the voltage No.18 of Micom

DC 5V?

Exchange AC PCB Ass'y.

Is the

connection between

AC and DC

all right?

Is the reset circuit all right?

(The No.14 of

Micom is 5V.)

• Check the Fuse.

• Check the wiring diagram.

• Check the Main

PCB pattern.

• Exchange the Trans.

• Exchange D02D~D05D.

• Exchange IC01D.

• Exchange IC02D.

• Exchange IC01A, C02A.

• Connect connector

exactly.

• Check the PCB pattern.

NO

YES

NO

YES

■ ELECTRICAL PARTS TROUBLESHOOTING GUIDE: WM-8031, WM-1031

Possible Trouble 1 The unit does not operate.

- 21 -

LGE Internal Use Only

Possible Trouble 2 The compressor does not operate.

Is setting

Temp. set lower than Room

Temp.-0.5°C?

Is the voltage No.10

of IC01M 0V?

• Exchange IC01M.

• Select the setting Temp. to lower Number.

• Wait 3 Minutes.

Is the Unit for 3 minutes

delay?

• Exchange MAIN PCB Ass'y.

Is the voltage N0.9 of

IC01M DC 12V?

• Check the RY-COMP.

• Check the wiring

Diagram.

NO

YES

Is the wire connection of

RY-COMP all right?

• Check the RY-COMP.

• Connect LEAD Wire to

RY-COMP again.

NO

YES

NO

Possible Trouble 3 The compressor always operate.

- 22 -

LGE Internal Use Only

Possible Trouble 4 FAN does not operate.

• Exchange IC01M.

Is the voltage NO.1 or 2 or 4

of IC01M DC 12V?

Is the voltage NO.16 or 15 or 13

of IC01M 0V?

• Check the RY-Hi or RY-Med or RY-Lo.

•

Check the wiring diagram.

NO

YES

• Check the PCB pattern.

Is the voltage of Battery

about over 2.3V?

• Exchange Receiver Ass'y.

Is the connection of

CN-AC/DC

all right?

Is the voltage No.10

of CN-AC/DC on DC PCB

Ass'y DC 5V?

• Exchange the battery.

• Check the PCB pattern.

• Connect connector to

CN-AC/DC

exactly.

NO

YES

Possible Trouble 5 Remote controller does not operate.

- 23 -

LGE Internal Use Only

Possible Trouble 6 It displays abnormally on DC PCB Ass’y.

NO

YES

Is the IC01G all right?

Is the connection of

CN-AC/DC

all right?

• Exchange the DC PCB Ass'y.

• Exchange IC01G.

• Exchange IC03G

(Q01G~Q04G for Delux Model).

• Connect connector to

CN-AC/DC

exactly.

Does the IC03G

(Q01G~Q04G for Delux Model)

operate normally on DC

PCB Ass'y?

- 24 -

LGE Internal Use Only

COMPLAINT CAUSE REMEDY

Fan motor will not run.

Fan motor runs intermittently

No power

Power supply cord

Rotary switch

Wire disconnected or connection loose

Capacitor (Discharge capacitor before testing.)

Will not rotate

Revolves on overload.

Check voltage at outlet. Correct if none.

Check voltage to rotary switch. If none, check power supply cord. Replace cord if circuit is open.

Check switch continuity. Refer to wiring diagram for terminal identification. Replace switch if defective.

Connect wire. Refer to wiring diagram for terminal identification. Repair or replace loose terminal.

Test capacitor. Replace if not within ±10% of manufacturer's rating. Replace if shorted, open, or damaged.

Fan blade hitting shroud or blower wheel hitting scroll. Realign assembly.

Units using slinger ring for condenser fan must have

1

/4to 5/16inch clearance to the base. If it hits the base, shim up the bottom of the fan motor with mounting screw(s).

Check fan motor bearings; if motor shaft will not rotate, replace the motor.

Check voltage. If not within limits, call an electrician.

Test capacitor. Check bearings. Does the fan blade rotate freely? If not, replace fan motor.

Fan motor noise.

Compressor will not run, but fan motor runs.

Fan

Blower

Loose clamper

Worn bearings

Voltage

Wiring

Rotary

Pay attention to any change from high speed to low speed. If the speed does not change, replace the motor.

If cracked, out of balance, or partially missing, replace it.

Tighten it.

If knocking sounds continue when running or loose, replace the motor. If the motor hums or noise appears to be internal while running, replace motor.

Check voltage. If not within limits, call an electrician.

Check the wire connections, if loose, repair or replace the terminal. If wires are off, refer to wiring diagram for identification, and replace. Check wire locations. If not per wiring diagram, correct.

Check for continuity, refer to the wiring diagram for terminal identification. Replace the switch if circuit is open.

- 25 -

LGE Internal Use Only

COMPLAINT CAUSE REMEDY

Compressor will not run, but fan motor runs.

Compressor cycles on overload.

Thermostat

Capacitor (Discharge capacitor before servicing.)

Compressor

Overload

Voltage

Overload

Fan motor

Condenser air flow restriction

Check the position of knob If not at the coldest setting, advance the knob to this setting and restart unit. Check continuity of the thermostat. Replace thermostat if circuit is open.

Check the capacitor. Replace if not within ±10% of manufacturers rating. Replace if shorted, open, or damaged.

Check the compressor for open circuit or ground. If open or grounded, replace the compressor.

Check the compressor overload, if externally mounted. Replace if open. (If the compressor temperature is high, remove the overload, cool it, and retest.)

Check the voltage. If not within limits, call an electrician.

Check overload, if externally mounted. Replace if open. (If the compressor temperature is high, remove the overload, cool, and retest.)

If not running, determine the cause. Replace if required.

Remove the cabinet. inspect the interior surface of the condenser; if restricted, clean carefully with a vacuum cleaner (do not damage fins) or brush. Clean the interior base before reassembling.

Compressor cycles on overload.

Insufficient cooling or heating

Excessive noise

Condenser fins (damaged)

Capacitor

Wiring

Refrigerating system

Air filter

Exhaust damper door

Unit undersized

Blower or fan

Copper tubing

If condenser fins are closed over a large area on the coil surface, head pressures will increase, causing the compressor to overload. Straighten the fins or replace the coil.

Test capacitor.

Check the terminals. If loose, repair or replace.

Check the system for a restriction.

If restricted, clean of replace.

Close if open.

Determine if the unit is properly sized for the area to be cooled.

Check the set screw or clamp. If loose or missing, correct. If the blower or fan is hitting air guide, rearrange the air handling parts.

Remove the cabinet carefully and rearrange tubing not to contact cabinet, compressor, shroud, and barrier.

- 26 -

LGE Internal Use Only

5. SCHEMATIC DIAGRAM

MOTOR

COMP.

CAPACITOR

DC PCB

ASSEMBLY

THERMISTOR

AIR FILTER ASSEMBLY

AC PCB

ASSEMBLY

WIRING DIAGRAM

3854AR3563N

SWITCH

H.V.

ASSEMBLY

BK

CN-MOTOR

CN-PWR

DC12V

ZNR01J

CN-12V

CN-HVB

RY-COMP

3

4

FUSE

250V/T2A

(115V/T2A)

RY-LOW

RY-MED

RY-HI

CN-AC/DC

POWER

TRANS

CN-AC/DC

CN-TH1

BL RD

RDBK

BL

R

S

C

OLP

YL OR

YL

F

C

H

WH

(BL)

(

Ribbed

)

BK(BR

)

(

Plain

)

GN/YL

(GN)

GN/YL

(GN)

BK

RD

OR(BR

)

1

5

7

6

8

4

2

3

COMP.

MOTOR

WH(BL)

POWER INPUT

(Plain)

GN(GN/YL)

BK(BR)

(Ribbed)

WIRING DIAGRAM 3854AR3563A

BL

RD

BK

R

C

S

YL

RD

BK

BL

RD

ROTARY SWITCH

BK

BL

L718

6

4

2

H

M

OR(BR)

BL

RD

BK

THERMOSTAT

CAPACITOR

P.T.C

RD

BK

F

C

H

BR(YL)

OLP

10

3

2

1

9

4

5.1 CIRCUIT DIAGRAM

MODEL: WM-8031, WM-1031, WM-1231,

HBLG8003R, HBLG1003R, L1204R, R1200E

MODEL: WR-8030, WR-1230, WR-1030,

R1200M

S: Service Parts N: Non Service Parts

LOCATION

NO.

1

MOTOR ASSY

2

CAPACITOR

3

COMPRESSOR

4

10

OVERLOAD PROTECTOR

5

DC PCB ASSEMBLY

6

AC PCB ASSEMBLY

7

THERMISTOR

8

PLASMA FILTER ASSY

9

THERMOSTAT

ROTARY SWITCH

DESCRIPTION

- 27 -

Q'TY

PER SET

1

RE-

MARKS

S

LGE Internal Use Only

5.2 ELECTRONIC CONTROL DEVICE

33

22

11

HVB

5V

b

c

R04P

X

O

X

5V

R04P

8

EEPROMModel

1

EEPROM

A0

5V

S7136

IC01A

3.6V

2

1

R01A

20K

3

+

10V

1uF

C02A

CAT93C46

Vcc

Auto Restart

Non Auto Restart

20K

R03P

20K

576

R02P

Q03G

1K

R04P

A101S

Q01G

A101S

Q02G

SW03G

D03G

SW06G

D06G

TEMP UP

D02G

D05G

SW02G

MODE

SW05G

TEMP DOWN ON/OFF

D01G

D04G

FAN

SW01G

TIMER

SW04G

A101S

423

A2

GND

A1

10K

R06P

R05P

10K

Rx

SDA

SCL

Digit4 (Scan4)

0.001

C01F

R01F

10K

C02F

0.001

R03F

10K

Digit1 (Scan1)

SEG-c

SEG-a

SEG-b

Digit0 (Scan0)

Digit2 (Scan2)

Digit3 (Scan3)

SCL

SDA

WP

0.01

C01A

50V

1M

R01B

OSC01B

RT8.00MG

1%

12.1K

R02H

6.2K

1%

R04H

5V

2

1

CN-TH1

SMAW200-02

2

112

5V

12

TEST

14 13

8

9

10

11

1619 18

VSS

VAref

17 15

Osc in

Osc out

/Reset

21 2022

242526

23

5V

4WAY

SYNC

LOW

COMP

Pipe TH

Option1

Option2

Room TH

567

123

4

MICOM

TMP87CH47U

SEG-d

44

SEG-e

SEG-f

4342

VDD

40

SEG-g

3837

KEY0

39

SLIDE SW

41

27282931323330

ION

MED

HI

Receiver

LED out3

Buzzer

363534

LED out0

LED out1

LED out2

KEY1

HVB

R22H

1%

12.1K

R21H

12.1K

1%

OR2H

745

6

987

OR1H

131211

10

5V

1

2

9

8

IC01M

1K

R02E

20

GND

Vout

RECEIVER

Vcc

R01L

5

4

12V

+

5V

10V

220

C02L

ULN2004A

161514

3

6

680pF

C01L

R01P

20K

50V

3

Digit0

510

a

f

a

b

Digit1

a

3

9

b8c

d

f

d

e

d

c

7

e4f1g

e

6

g g

COOL

DEFROST

DRY/HEAT

TIMER

FAN

E/SAVER

R02G

R03G

R04G

R01G

680

R05G

R06G

R07G

12V

680

IC01G

151413

432

161

121110

765

98

ULN2004A

10K

5V

R12F

R01E

1K

5V

C06D

BZ01E

PKM13EPY

-4002

+

C05D

50V

10V

220

0.01

10

12V

11

12

CN-AC/DC

51581-12(YEONHO)

52044-1245(MOLEX)

C05D

5V

12V

I

C04D

O

7805

IC02D

25V

0.01

ANGLE

11

12

Rx

Tx

1K

Q03T

C104M

5V

Q02T

A104M

Q01T

C104M

Q04T

A104M

C03T

0.001

R01T

25V

C02T

0.001

D01T

1N4148

C01T

0.1

50V

5V

(RD)

CN-TELE

CN-TH2

SMW200-03

SMW250-02

465

J7

RY-COMP

RY-4WAY

RY-LOW

9

8

CN-TH2

X

O

X

O

J07

O

X

O

RY-4WAY

RY-MED

RY-HI

CN-4WAY

7

J5

2

PIPE-TH

2

1

3

1

2

SW2

CN-HVB

SMW200-03(BL)

CN-CONT

SMW200-03(YL)

Model

RY-4WAY

3

1

2

SW1

33

11

CN-4WAY

YW396-03AV(YL)

SMW200-03(WH)

CN-12V

12V

Cool Only

Heat Pump

1

10

S/V-

4WAY

3

5V

2

1

12V

CN-AC/DC

51580-12

52045-1245

+

I

7812

IC01D

C03D

C01D

D04D

+

O

C02D

16V

35V

50V

1000

0.1

4

7

D02D

D03D

2

1

POWER TRANS

1N4004

D02D~D05D

D05D

STRAIGHT

RY-HI

RY-MED

RY-LOW

R01J

C01J

0.1/275V

1

3

1

3

579

33

11

CN-PWR

CN-MOTOR

YW396-09AV

YW396-03AV

SVC271D-14A

ZNR01J

SVC271D-14A

RY-COMP

G4A-1A-E-LG

FUSE

250V/T2A

120 1/2W

CAPACITOR

C

MAIN POWER

MOTOR

FAN

COMP

FAN

HERM

ROOM-TH

88 SEGMENT

MODEL : WM-8031, WM-1031, WM-1231,HBLG8003R, HBLG1003R, L1204R, R1200E

- 28 -

LGE Internal Use Only

5.3 COMPONENTS LOCATION(FOR AC P.C.B ASM)

R01T

CN-HVB

C03T

Q03T

Q04T

C04D

C05D

C01D

C02D

D02D

D03D

D04D

D05D

IC01D

HEAT SINK

QIC02DT

J5

Q01T

CN-TELE

CN-TH2

CN-PWR

CN-MOTOR

ZNR01J

CN-4WAY

C01J

R01J

E03J

E04J

POWER

TRANS FUSE 250V/T2A

RY-COMP

E05J

E02JJ8E01J

J6

J2

J3

RY-HI

PCB:6870A90068A

ASSEMBLY:6871A20167

RY-MEDRY-LOWRY-4WAY

J7

J4

J1

D01T

C02T

Q02T

CN-CONCN-12V

CN-AC/DC

MODEL : WM-8031, WM-1031, WM-1231, HBLG8003R, HBLG1003R, L1204R, R1200E

5.4 COMPONENTS LOCATION(FOR DC P.C.B ASM)

MODEL : WM-8031, WM-1031, WM-1231, HBLG8003R, HBLG1003R, L1204R, R1200E

- 29 -

LGE Internal Use Only

6. EXPLODED VIEW

130910

149980

346811

359012

349001

147581

147582

559010

352113

354210

152302

130410

550140

35211A

554160

567502

135312

135313

554030

352115

552111

268714

W0CZZ

135500

249950

263230

268712

238310

264110

267110

237200

731373

• ELECTRICAL MODEL

- 30 -

LGE Internal Use Only

• MECHANICAL MODEL

130910

149980

346811

359012

349001

W0CZZ

135500

147581

147582

559010

352113

354210

152302

264110

249950

149410

266003

269310

130410

550140

35211A

554160

567502

135312

135313

554030

352115

552111

731373

- 31 -

LGE Internal Use Only

P/NO : 3828A20306A

FEBRUARY, 2008

Lg L1204r Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual