AWH-1808ER/front 6/13/98 11:00 AM Page 1

ROOM AIR CONDITIONER

AWH-1808ER

SERVICE Manual

AIR CONDITIONER CONTENTS

1. Precautions

2. Product Specifications

3. Installation and Operating

Instructions

4. Disassembly and Reassembly

5. Troubleshooting

6. Exploded Views and Parts List

7. Block Diagram

8. PCB Diagram

9. Wiring Diagram

10. Schematic Diagrams

AWH-1808ER/front 6/13/98 11:00 AM Page 2

ELECTRONICS

©

Samsung Electronics Co., Ltd. NOV. 1997.

Printed in Korea.

Code No. DB81-10131A

AWH-1808ER-1 6/13/98 10:12 AM Page 1

1. Precautions

1. Warning: Prior to repair, disconnect the power cord from the circuit breaker.

2. Use proper parts: Use only exact replacement parts. (Also, we recommend replacing parts rather than repairing them.)

3. Use the proper tools: Use the proper tools and test equipment, and know how to use equipment may cause problems laterintermittent contact, for example.

4. Power Cord: Prior to repair, check the power cord and replace it if necessary.

5. Avoid using an extension cord, and avoid tapping into a power cord. This practice may result in malfunction or fire.

6. After completing repairs and reassembly, check the insulation resistance, Procedure:

Prior to applying power, measure the resistance between the power cord and the ground terminal. The resistance must be greater than 30 megohms.

7. Make sure that the grounds are adequate.

8. Make sure that the installation conditions are satisfactory. Relocate the unit if necessary.

9. Keep children away from the unit while it is being repaired.

10. Be sure to clean the unit and its surrounding area.

Fig. 1-1 Avoid Dangerous Contact

Fig. 1-2 No Tapping and No Extension Cords

Fig. 1-3 No Kids Nearby!

Samsung Electronics

Fig. 1-4 Clean the Unit

1-1

AWH-1808ER-1 6/13/98 10:12 AM Page 3

2. Product Specifications

2-1 Table

Item

Type

Dimensions:

(Width X Height X Depth)

Packing Size

(Width X Height X Depth)

Voltage:

Phase

Frequency

Operating Current

Power Consumption

Refrigerant Type

Refrigerant Charge

Cooling Capacity

EER

Net Weight

Condenser

Condenser Fan

Evaporator

Evaporator Fan

Fan Motor

Compressor(Rotary)

Overload Protect

Compressor Capacitor

Fan Motor Capacitor

Fan Speed Control

Thermo Control

OFF Timer

Unit of Measure

mm mm

BTU/h

BTU/h.W

kg

Row

Type

Row

Type

Volt

-

Hz

A

W

FREON g

W

Model

-

µF/ VAC

µF/ VAC

-

hr

AWH-1808ER(Cooling/Heating)

Window

660 X 420 X 695

737 X 476 X 794

220 - 240

Single

50

9.0 / 7.7

2,050 / 1,730

R-22

860

17,000 / 16,500

8.3 / 9.5

59

2 X 16

Propeller Fan

3 X 14

Blower

IC-13435SWJ5A

48B180JV1E7

MRA12016-12007

40 / 450

(DUAL)

6 / 450

Fan speed switch (High & Low)

Thermistor

24

Remarks

Samsung Electronics 2-1

AWH-1808ER-1 6/13/98 10:12 AM Page 4

2-2 Dimensions

2-2-1 Main Unit

Unit : mm

Front view

660

Side view

2-2-2 Remote Control

Fan speed adjustment buttons

Temperature adjustment buttons

ON/OFF Buttons

Timer setting buttons

Mode selection buttons

(COOL, HEAT, FAN)

Air flow swing button

2-2 Samsung Electronics

AWH-1808ER-1 6/13/98 10:12 AM Page 5

3. Installation and Operating Instructions

3-1 Installation

* When selecting the area for installing the unit, be sure to obtain approval of the customer.

1. Make sure that you install the unit in an area that provides good ventilation.

The air conditioner must not be blocked by any obstacle affecting the air flow near the air inlet and air outlet.

2. Make sure that you install the unit in an area which can endure the weight and vibration of the unit.

6. Make sure that you install the unit in an area which provides easy drainage for condensed water.

7. Make sure that you install the unit in an area not exposed to rain or direct sunlight.

(Install a separate sunblind if exposed to direct sunlight.)

3. Make sure that you install the unit away from heat or vapor.

8. Do not install the unit in an area subjected to noise or vibration amplification which may affect your neighbor.

(Fix the unit firmly if mounted in a high place.)

4. Make sure that you install the unit in an area where the cooled air can be evenly spread in a room.

5. Make sure that you install the unit in an area away from TVs, audio units, cordless phones, fluorescent lighting fixtures and other electrical appliances.

(obtain a clearance of at least one meter)

Caution:

Do not use the air conditioner in such areas as a greasy area(including machine oil), saline area(sea side), or sulphuric area(hot spring). When using the air conditioner in these areas, special maintenance is required. Contact your local dealer or our service center for advice.

Samsung Electronics 3-1

AWH-1808ER-1 6/13/98 10:12 AM Page 6

3-2 Function Description

Remote control sensor

Air swing button

Deice indicator

Operating mode indicators

(HEAT, FAN, COOL)

Mode selection button

ON/OFF button

Power indicator

3-2-1 Cooling operation mode

The compressor is turned on and off according to the ambient temperature and set temperature.

1. Compressor on and off control

• Compressor on and off control according to the ambient temperature.

*

*

The compressor is turned off when "ambient temperature = set temperature -1˚C"

The compressor is turned on when "ambient temperature = set temperature +1˚C"

2. Default value after power reset ➔ set temperature = 24˚C

FAN SPEED = HIGH

3. Set temperature indicating (setting) range : 1˚C interval from 18˚C to 30˚C.

3-2-2 Heating operation mode

The compressor is turned on and off according to the ambient temperature and set temperature.

1. Compressor on and off control.

• Compressor on and off control according to the ambient temperature.

* The compressor is turned off when "ambient temperature = set temperature +1˚C"

* The compressor is turned on when "ambient temperature = set temperature -1˚C"

2. Default value after power reset ➔ set temperature = 24˚C

FAN SPEED = HIGH

3. Set temperature indicating (setting) range : 1˚C interval from 16˚C to 30˚C.

3-2-3 Fan operation mode

1. If "Fan operation mode" signal is received from remocon or panel.

➔ the compressor is immediately turned off and only fan motor is operated at set blowing speed.

➔ it changes such as "HIGH ➔ LOW ➔ HIGH"( if Fan speed is selected).

2. The initial FAN speed is set to "HIGH".

3. The set temperature can not be indicated and set.

Temperature/Timer settings

Temperature indicator

Timer indicator

Temperature adjusment button

Timer setting button

Fan speed indicators

Fan speed adjust button

3-2 Samsung Electronics

AWH-1808ER-1 6/13/98 10:12 AM Page 7

3-2-4 LED lamp and LED display indication in case of error detection

ERROR OPERADTION

ROOM THERMISTOR

(OPEN OR SHORT)

INDOOR PIPE THERMISTOR

(OPEN OR SHORT)

OUTDOOR PIPE THERMISTOR

(OPEN OR SHORT)

Lamp

COOL

LED LAMP DISPLAY

HEAT blinking at every second (on for 0.5s and off for 0.5s)

LED lamp off

FAN

7-SEG

LED DISPLAY

E1 displayed

E5 displayed

E6 displayed

1. Set operation in case of error occurrence.

• Malfunction of each temperature sensor (open, short)

- Error mode display, warning sound.

- The operation status is off.

2. The "outdoor pipe thermistor" error mode carry out checking only during heating operation and do nor carry out checking during and "FAN" operation.

Samsung Electronics 3-3

AWH-1808ER-1 6/13/98 10:12 AM Page 8

3-2-5 Panel key operation

Key name

Key discription

ON/OFF

Mode

Fan speed

Temp.

Air swing

Timer

Key operational function

Operation start and stop

* First ON = operation start, second ON = operation stop

* Continuous operation is not available.

Operation mode change (in case of model option heat pump)

* at every ON

- Selected as "COOL –> HEAT –> FAN". (Default=COOL)

* If operation is OFF, it is considered as an invalid key.

* Continuous operation is not available.

Indoor fan speed setting.

* At every ON -> selected as "HIGH -> LOW -> HIGH".

* If operation is OFF, it is considered as an invalid key.

* Continuous operation is not available.

Currently displayed set temperature circulation (in case of option -> ˚C)

* At every pressing, the set temperature is changed by 1˚C (cooling operation)

(24˚C -> 25˚C -> 26˚C -> 27˚C ---> 30˚C -> 18˚C -> 19˚C -> 20˚C ---> 24˚C).

* At every pressing, the set temperature is changed by 1˚C (heating operation)

(24˚C -> 25˚C -> 26˚C -> 27˚C ---> 30˚C -> 16˚C -> 17˚C -> 18˚C ---> 24˚C).

* Single and continuous operation is available.

* In case of the set temperature of 30˚C, when the "increase" key is pressed by remocon, temperature does not increase any more and waring, sound is generated.(cooling, heating operation) --> The panel key is circulated continuously.

* If operation is OFF, it is considered as an invalid key.

* In case of fan speed operation, it is considered as an invalid key.

Currently displayed set temperature circulation (in case of option --> ˚F)

* At every pressing, the set temperature is changed by 1˚F (cooling operation)

(75˚F -> 76˚F -> 77˚F ---> 86˚F -> 64˚F -> 65˚F -> 66˚F -> 67˚F ---> 75˚F).

* At every pressing, the set temperature is changed by 1˚F (heating operation)

(75˚F -> 76˚F -> 77˚F ---> 86˚F -> 61˚F -> 62˚F -> 63˚F -> 64˚F---> 75˚F).

* Single and continuous operation is available.

* In case of the set temperature of 86˚F, when the "increase" key is pressed by remocon, temperature does not increase any more and warning, sound is generated.(cooling, heating operation) --> The panel key is circulated continuously.

* If operation is OFF or fan speed, it is considered as an invalid key.

Left and right swing motor operation and stop.

* Once ON = Left and right swing motor operation, Another ON = Left and right swing motor stop.

* In case of cool blowing inhibition, it is considered as an invalid key.

(only in fan motor OFF range)

* In case of defrosting operation, it is considered as an invalid key.

(only in fan motor OFF range)

* Continuous operation is not available.

* In case of operation stop, when the fan motor is turned off it is considered as an invalid key.

* In case of deicing operation, the left and right swing motor does not operate.

(it operates when the fan motor is being operated)

Time increase by the convenient reserve (OFF TIMER) time control key.

* At every pressing the time is increased by 1 hour.

(- - > 01 -> 02 -> 03 -> 04 -> 05 - - - > 18 -> 19 -> 20 -> 21 -> 24 -> - - )

* "- - " means that the convenient reserve time is not set yet.

(convenient reserve cancelled)

* Single and continuous operation is available.

* If operation is OFF, it is considered as an invalid key.

3-4

Key Type

TACT

TACT

TACT

TACT

TACT

Samsung Electronics

AWH-1808ER-1 6/13/98 10:12 AM Page 9

3-2-6 LED lamp operation specifications

LAMP name

ON

COOL

DEICE

(1)

HEAT

FAN

HIGH

LOW

˚C

HR

(2)

Operations specifications

Operation ON condition : ON

Operation OFF condition : OFF

Blinking just after resetting : Automatic stop after turning on for 0.5 s and off for 0.5s for 3 minutes(if the operation/stop key is not pressed for 3 minutes).

The mode is set to " COOL " –> ON

Others –> OFF

The mode is set to "HEAT" -> ON

Others –> OFF

The mode is set to " FAN " –> ON

Others –> OFF

The fan speed is set to " HIGH " –> ON

Others –> OFF

The fan speed is set to " LOW " –> ON

Others –> OFF

The set temperature is displayed or set -> ON

Others –> OFF

During setting of the convenient reserve (OFF TIMER) time -> blinking

After setting of the convenient reserve (OFF TIMER) time -> ON

Others –> OFF

Till the "deicing" operation is completed during heating opertion -> ON

Others –> OFF

In case of (set) temperature display

-> NO. (1) 7 seg. LED display indicates temperature of the tens digit (˚C, ˚F)

-> NO. (2) 7 seg. LED display indicates temperature of the units digit (˚C, ˚F)

In case of time (OFF TIMER) display

-> NO. (1) 7 seg. LED display indicates time of the tens digit

-> NO. (2) 7 seg. LED display indicates time of the units digit

Samsung Electronics 3-5

AWH-1808ER-1 6/13/98 10:12 AM Page 10

Temperature

[˚C]

64

63

62

61

60

70

69

68

67

66

65

53

52

51

50

59

58

57

56

55

54

46

45

44

43

49

48

47

42

41

40

35

34

33

32

39

38

37

36

31

30

3-2-7 Resistor and voltage values table of room thermistor, indoor thermistor and outdoor thermistor for each temperature

THERMISTOR

[Kohm]

1.670

1.729

1.791

1.855

1.922

1.992

2.065

2.141

2.220

2.303

2.390

2.480

2.574

2.672

2.775

2.882

2.994

3.111

3.234

3.362

3.496

3.635

3.780

3.932

4.091

4.257

4.432

4.614

4.806

5.007

5.217

5.438

5.669

5.912

6.167

6.435

6.716

7.012

7.322

7.649

7.993

Voltage

[DC V]

0.715

0.737

0.759

0.782

0.806

0.830

0.855

0.881

0.908

0.936

0.964

0.993

1.023

1.054

1.086

1.118

1.152

1.186

1.221

1.258

1.295

1.333

1.371

1.411

1.451

1.493

1.535

1.578

1.623

1.668

1.741

1.761

1.809

1.857

1.907

1.957

2.008

2.060

2.113

2.167

2.221

-1

-2

-3

-4

-5

-6

-7

-8

-9

-10

5

4

3

2

1

0

9

8

7

6

16

15

14

13

19

18

17

12

11

10

Temperature

[˚C]

23

22

21

20

29

28

27

26

25

24

3.904

3.949

3.992

4.035

4.076

4.116

4.155

4.193

4.230

4.266

3.401

3.455

3.509

3.561

3.613

3.664

3.714

3.763

3.812

3.859

2.840

2.897

2.954

3.011

3.068

3.124

3.180

3.237

3.292

3.347

Voltage

[DC V]

2.275

2.331

2.387

2.443

2.500

2.556

2.612

2.669

2.726

2.782

35.66

37.59

39.64

41.82

44.14

46.60

49.22

52.01

54.98

58.14

21.28

22.38

23.54

24.76

26.06

27.44

28.90

30.45

32.10

33.85

13.15

13.78

14.44

15.14

15.88

16.66

17.48

18.36

19.28

20.25

THERMISTOR

[Kohm]

8.354

8.734

9.135

9.556

10.00

10.46

10.94

11.45

11.99

12.55

3-6 Samsung Electronics

AWH-1808ER-1 6/13/98 10:12 AM Page 11

3-2-8 About the safety devices

1. High temperature release : If temperature of the indoor pipe thermistor increases over the specified value during heating operation, following operation is carried out for safety of the equipment.

A condition : temperature of indoor pipe thermistor is below 47˚C

B condition : temperature of indoor pipe thermistor is between 58˚C and 63˚C

C condition : temperature of indoor pipe thermistor is over 63˚C

1) High temperature release operation OFF condition = A condition

-> compressor ON (only in THERMO ON condition)

-> fan motor speed = set fan speed and cool blowing inhibiting operation

2) High temperature release operation ON condition = B condition

-> compressor ON

-> fan motor speed = HIGH operation if it was LOW

= HIGH operation if it was HIGH

3) High temperature release operation ON condition = C condition

-> fan motor speed = set fan speed

-> compressor OFF

2. Low temperature release : If temperature of the indoor pipe thermistor decreases below the specified value during cooling operation, following operation is carried out for safety of the equipment.

A condition : temperature of indoor pipe thermistor is below -1˚C for more than 6 minutes

B condition : temperature of indoor pipe thermistor is over 5˚C

1) Low temperature release ON condition = A condition

-> compressor OFF

-> fan motor "set fan speed"

2) Low temperature release OFF condition = B condition

-> The compressor is turned on if ON condition is satisfied after comparing the ambient temperature with the set temperature

-> fan motor "set fan speed"

[Detailed description]

1) If temperature of indoor pipe thermistor is below -1˚C for more than 6 minutes, the fan motor continues to operate at the set fan speed and the compressor is turned off(Low temperature release operation)

2) If temperature of the indoor pipe thermistor increases over +5˚C during low temperature release operation, normal operation is recovered

: compressor ON, fan mtor set fan speed -> Low temperature release operation OFF

3) If temperature of indoor pipe thermistor increases over 0˚C during counting 6 minutes below -1˚C, the counter is reset.

Samsung Electronics 3-7

AWH-1808ER-1 6/13/98 10:12 AM Page 12

3. Deicing operation : If temperature of the outdoor pipe thermistor decreases below the specified value during heating operation, following operation is carried out for safety of the equipment.

OUTDOOR PIPE

Thermistor temperature (A-Condition)

12[˚C]

100min below

-4[˚C]

100min

COUNT

ON

100min

COUNT

OFF

100min

COUNT

ON

100min

OUTDOOR PIPE

Thermistor temperature (B-Condition)

12[˚C]

30min below

-6[˚C]

ON

5min

OFF

30min

COUNT

ON

30min

COUNT

OFF

30min

COUNT

ON

30min

OUTDOOR PIPE

Thermistor temperature (C-Condition)

12[˚C]

10min below

-8[˚C]

ON

5min

OFF

10min

COUNT

ON

10min

COUNT

OFF

10min

COUNT

ON

10min

ON

5min

OFF

3-8 Samsung Electronics

AWH-1808ER-1 6/13/98 10:12 AM Page 13

CYCLE

COMPRESSOR

1) Deicing detecting condition

• If one of A, B and C conditions is satisfied, deicing operation is carried out.(AUBUC)

• If counting time is overlapped due to detection reference temperature change during counting of the deicing condition, deicing operation starts when the counting time is finished first.

• The maximum counting time is 100 minutes.

- During deicing operation, the left and right swing motor is turned off and stops at the position before swing.

- If operation is turned off during deicing operation, it is finished and the compressor is turned off.

-> Deice lamp ON, fan motor OFF.

2) Display indication.

• The deice lamp is turned on additionally during deicing cycle.

• Only the deice lamp is turned off when deicing is finished.

3) In case of turning off during deicing operation.

• The compressor is turned off after finishing the deicing operation.

• The deice lamp is turned on during deicing cycle and is turned off when deicing is finished.

4) In case of changing mode to cooling operation during deicing operation.

• Cooling operation is carried out after carrying out deicing operation.

• After the compressor is turned off and 3 minutes is passed, it is restarted.

5) Load operation during deicing operation.

DEICE LED ON DEICE LED OFF

DEICE TIME

ON

1min

OFF

FAN

MOTOR

1sec

OFF

COOL BLOWING INHIBITION

THERMO ON

2sec

ON

SET FAN SPEED

AND COOL

BLOWING

INHIBITION

4-WAY

VALVE

ON OFF

55sec

Samsung Electronics 3-9

AWH-1808ER-1 6/13/98 10:12 AM Page 14

4. Cool blowing inhibiting control : In order to inhibit cool blowing during heating operation, the fan motor is operated when temperature of the indoor pipe thermistor is above the specified value.

• The fan motor speed is controlled according to the temperature of condition of the indoor pipe thermistor.

< Compressor OFF -> Compressor ON >

Indoor pipe thermistor

32˚C

30˚C

FAN MOTOR

CONTROL

SET FAN SPEED

LOW FAN

OFF

< Compressor ON -> Compressor OFF >

Indoor pipe thermistor

32˚C

31˚C

30˚C

LOW FAN

OFF

30sec

1) When the indoor pipe thermistor temperature is increasing indoor pipe thermistor temperature = below 32˚C --> fan motor OFF indoor pipe thermistor temperature = over 32˚C --> fan motor speed "set blower speed"

2) When the indoor pipe thermistor temperature is decreasing indoor pipe thermistor temperature = over 30˚C --> fan motor speed "set blower speed" indoor pipe thermistor temperature = below 30˚C --> fan motor speed "Low"

3) But if the compressor is operating, the fan motor is not turned off but is operated weakly even if the indoor pipe thermistor temperature decreases.

3-10 Samsung Electronics

AWH-1808ER-1 6/13/98 10:12 AM Page 15

< Compressor ON -> Compressor OFF > indoor pipe thermistor temperature = below 30˚C --> fan motor speed "Low" indoor pipe thermistor temperature = over 30˚C --> fan motor OFF

30s is passed after compressor is turned off --> fan motor OFF

3-2-9 Compressor delayed operation and 4-way valve delayed operation :

The compressor is turned on after 3 minutes from power resetting or compressor turning off during cooling or heating operation.

1) The compressor can be turned on after "3 minutes delay" from power resetting or compressor turning off.

2) The 4 way valve is turned off/on after "2 minutes and 55 seconds delay" in the on/off condition.

(during heating operation)

3) The operation is stopped after "2 minutes and 55 seconds delay" in the off condition when the 4 way valve is turned on.

Samsung Electronics 3-11

AWH-1808ER-1 6/13/98 10:12 AM Page 17

4. Disassembly and Reassembly

4-1 Compressor Replacement Flow Chart

Locate cause of defect

Release refrigerant

Disconnect electrical wiring from compressor

Cut refrigerant lines from compressor

Plug disconnected lines

Replace compressor

Y

Inspect electrical wiring for defects, and terminals for correct and secure connections

Solder discharge line Solder suction line

Problem?

N

Use nitrogen gas

Corrective action

Samsung Electronics

Y

Add oil as necessary

Check refrigerant oil level

Low oil level?

N

Perform soldering function

Fill system with nitrogen gas

Check for leakage

Leakage?

Y

N

Release nitrogen gas?

Evacuate system

Recharge system

Recharge system

4-1

AWH-1808ER-1 6/13/98 10:12 AM Page 18

4-2 Checking the oil

Fill the transparent container with 10cc of oil, and then conduct the test.

4-2-1 Oil quality

Refrigerant Cycle

Normal

Over-heated

Compressor damage

Color

Light Yellow

Brown

Dark brown

Oil Condition

Odor

No Odor

-

Pungent oil

4-2-2 Replacing and refilling the refrigerant oil

1. Replacing the compressor - Do not fill the system with oil as the compressor is already charged.

2. Replacing the condenser - Refill 50cc.

3. Replacing the evaporator - Refill 50cc.

4. Replacing the refrigerant - Refill 30cc.

5. The high pressure side is filled up with oil after the vacuum is completed.

6. When the refrigerant leaks, it is generally not necessary to refill the oil if the leakage is not severe.

Remarks

Return with the system

Oil Change

Oil Change

4-2 Samsung Electronics

AWH-1808ER-2 6/13/98 1:15 PM Page 1

4-3 Disassembly and Reassembly Procedure

Stop operating the air conditioner, and pull out the power cord before repair.

No.

①

Part name

Ass'y Grill

Procedures

1. Hold the lower part of the grill with two hands while pressing down on both sides of the lower part of the cabinet, pull it forward by about 30˚, and then lift it up for removal.

Remarks

➁

Ass'y Cabinet 1. Remove the screws on both sides of the cabinet to disconnect the cabinet and frame.

2. Pull the handle on the front side of the bottom, and remove the unit from the cabinet.

➂

Ass'y Control 1. Remove four machine screws, and earth wire screw.

2. Remove three lead wire assemblies and the deice sensor from the condenser, and remove two screw on the partition cover.

3. Take out the control box forward.

Samsung Electronics 4-3

AWH-1808ER-2 6/13/98 10:27 AM Page 2

Disassembly and Reassembly

No.

➃

Part name

Plate-Cover

Procedures

1. Remove 11 screws on the plate cover.

Remarks

➄

Ass'y-Evaporator 1. Remove two screws on the left side of the evaporator.

➅

Plate-Evap Casing 1. Lift up the evaporator, and remove the tray drain.

2. Remove two screws on the bottom side, and two screws on the left side of the plate evap casing.

4-4 Samsung Electronics

AWH-1808ER-2 6/13/98 10:27 AM Page 3

No.

➆

Part name

Blower

Procedures

1. Loosen the hexagon nut, and remove the blower.

Disassembly and Reassembly

Remarks

⑧

Propeller Fan 1. Loosen the hexagon nut, and remove the propeller fan.

⑨

Motor Supporte

& Motor

1. Remove four hexagon nuts on the base pan.

2. Move the motor-assembly toward the condenser, and lift up the motor-assembly from the frame.

3. Remove the clips on both sides carefully using the (-) driver.

Samsung Electronics 4-5

AWH-1808ER-2 6/13/98 10:27 AM Page 5

5. Troubleshooting

Check the basic checkpoints first to determine whether it is machine trouble or a problem in the operation method. When it is not related to the basic checkpoints, perform checking in accor dance with the procedures of troubleshooting by symptom.

5-1 Basic Checkpoints for Troubleshooting

1) Is the voltage of the power source appropriate ?

(1)It should be within the range of AC 198V ~ 264V.

(2)The air conditioner may not operate properly when the voltage is out of this range.

2) Is the connection with the fan motor, compressor wire, and starting condenser appropriately made ?

3) The symptoms listed in the table below are not indicative of machine trouble.

Symptom

No operation

Air flows, but no cooling no Heating

The remocon does not operate

No temperature setting

Cause and check

• Check whether there is power failure or the power plug is pulled out.

• Check whether the unit is stopped as a result of completion of the sleep time.

• Pull out the power plug for ten seconds, and then insert it again.

• Check whether the Air filter is clogged with dust or is dirty.

• Check whether the desired temperature is too high. Set the desired temperature to a lower level than the current temperature.(Cooling)

• Check whether it is in "FAN" mode.

• Check whether the desired temperature is too low. Set the desired temperature to a higher level than the current temperature.(Heating)

• Check whether the unit is deicing.

• Check whether battery is completely depleted.

• Check whether the battery is properly inserted.

• Check whether the receiving window of the remocon for the assembly panel PCB is blinded.

• Check whether the remocon is affected by jamming due to a neon sign.

• Check whether the unit is in "FAN" mode.

(In "FAN" mode, only the current temperature is displayed, and the desired temperature is not set.)

The "ON" lamp blinks continuously

• Press the ON/OFF button again.

• Pull out the power plug, and then insert it again.

•

Checking and Display of Fault Area

ERROR OPERATION

COOL

LED LAMP

HEAT

ROOM THERMISTOR

(OPEN OR SHORT)

INDOOR PIPE THERMISTOR

(OPEN OR SHORT)

OUTDOOR PIPE THERMISTOR

(OPEN OR SHORT)

*

Lamp --- blinking at every second (on for 0.5s and off for 0.5s)

--- LED Lamp off

FAN

7-SEG

LED DISPLAY

E1 displayed

E5 displayed

E6 displayed

Samsung Electronics 5-1

AWH-1808ER-2 6/13/98 10:27 AM Page 6

5-2 Troubleshooting by Symptom

5-2-1 No power

1) Check points

(1) Is the voltage of the power source normal ? (AC 198V ~ AC 264V)

(2) Is the electric wire in good contact ?(CN 71, RY 71)

(3) Is the output voltage of the IC01(KA 7812) normal ?(DC 11.5V ~ DC 12.5V)

(4) Is the output voltage of the IC02(KA 7805) normal ?(DC 4.5V ~ DC 5.5V)

Turn off the power, and then turn it on again five seconds later.

Y

Does the "ON" LED lamp of the assembly panel PCB blink for three minutes, and then go off?

N

Check whether the "ON" LED lamp is on, and the operation starts when pressing the ON/OFF button of the remocon.

N

Is the F701(3.15A) fuse blown?

N

Is the primary voltage of the trans normal?

(AC 198V ~ AC 264V)

Y

Is the secondary voltage of the trans normal?

(AC 13V ~ AC 17V)

Y

Is the rectifying diode(D101~D106) normal?

Y

Is the voltage of DC 17V ~ DC 23V applied at both ends of the C102 electrolytic condenser?

Is the voltage of DC 12V applied at both ends of the C104 electrolytic condenser?

Is the voltage of DC 5V applied at both ends of the C105 electrolytic condenser?

Y

Are the IC01(KA7812) and IC02(KA7805) normal?

Y

Replace the assembly main PCB.

Y

Y

N

N

N

N

N

Normal operation.

Normal operation.

Replace the fuse.

Check the power cord and electric wire.

Check and replace the trans.

• Check the D101 ~ D106 for cold soldering.

• Replace the diode

• Check both ends of the C102 for short and cold soldering.

• Check the +12V for a short.

• Check the +5V for a short.

• Check and replace the C102, C104, and C105.

• Check the IC01, and IC02 for cold soldering and a short.

• Replace the IC01, and IC02.

5-2 Samsung Electronics

AWH-1808ER-2 6/13/98 10:27 AM Page 7

5-2-2 When the assembly panel PCB is not operated

1) Check points

(1) Is the voltage of the power source normal ?(AC 198V ~ AC 264V)

(2) Is the electric wire in good contact ?(CN71, RY71)

(3) Is the connection of the assembly main PCB, and assembly panel PCB in good contact?

(CN91, CN92)

(4) Is the voltage of +12V normal ?(CN91 and CN 92 No 15 pin and No 18 pin : +12V±0.5V)

(5) Is the TACT switch of the Ass'y panel PCB pressed above 2 ea?

Turn off the power, and then turn it on again five seconds later.

Check the micom

(IC04) for a short, and replace it.

Check the micom

(IC04) for a short, and replace it.

Check the IC01 for a short, and replace it.

Check the IC02 for a short, and replace it.

When the LED lamp is not operated.

Y

N

N

Is the voltage of the micom

(IC04) No.36~39 port a square wave?

Y

Is the voltage of the micom

(IC04) No.56,58~63 port a square wave?

Y

N

Is the voltage of the

IC01 No. 13~16 a square wave?

Y

N

Is the voltage of the

IC02 No. 10~16 a square value?

Y

Replace the assembly panel PCB

When the TACT switch is not operated.

Y

Is the voltage of the micom (IC04) No.36~41port a square wave?

Y

Is the voltage of the micom(IC04) No.44port a square wave?

Y

Does the switching diode(D901~D906) operate normally?

Y

Replace the assembly panel PCB.

N Check the micom

(IC04) for a short, and replace it.

N

N

Check the micom

(IC04) for a short, and replace it.

Replace the faulty switching diode.

(D901~D906)

Samsung Electronics 5-3

AWH-1808ER-2 6/13/98 10:27 AM Page 8

5-2-3 When the remocon is not operated

1) Check points

(1) Is the voltage of the power source normal ? (AC 198 ~ AC 264V)

(2) Is the electric wire in good contact ? (CN71, RY71)

(3) Is the assembly main PCB in good contact with the assembly panel PCB?(CN91, CN92)

(4) Is the voltage of +12V and +5V of the assembly panel PCB normal?

(CN91 No 15 pin and No 18 pin : +12V, No 15 pin and No 17 pin : +5V)

Turn off the power, and then turn it on again five seconds later.

Does the "ON" LED lamp of the assembly panel PCB blink for three minutes, and then go off?

Y

Check whether the "ON" LED lamp is on and th peration starts when pressing the on/off button of the remocon.

N

Is the battery voltage of the remocon above

DC 2.5V?

Y

Does the X-TAL(CSB455EB) oscillate normally?

Y

Is the collector voltage of the remocon Q1, Q2(C2412) a square wave?

Y

Is the receiving output of the assembly panel PCB a square wave?(CN93 No.15(-), No.16(out))

Y

Is the input voltage of the micom(IC04) No. 26 pin of the assembly main PCB a aquare wave?

Y

Replace the assembly main PCB.

Y

Y

N

N

N

N

N

Go to the clause "No power".

The remocon is normally operated.

Replace the battery.

• Check the X-TAL for cold soldering and a short.

• Replace relevant components.

• Check the micom(IC1) Q1, and Q2 for cold soldering and a short.

• Replace relevant components.

• Check the RM41(recieving module) for cold soldering and a short.

• Replace relevant components.

• Check the R401 and C401 components.

• Check the micom(IC04).

5-4 Samsung Electronics

AWH-1808ER-2 6/13/98 10:27 AM Page 9

5-2-4 Wen the compressor is not operated

1) Check points

(1) Is the voltage of the power source normal ? (AC 198V ~ AC 264V)

(2) Is the desired temperature lower than the indoor temperature in the cool mode?

(Compressor stopped)

(3) Is the desired temperature higher than the indoor temperature in the HEAT mode?

(Compressor stopped)

(4) Is the starting condenser in good contact?

(5) Is the electric wire in good contact ? (CN71, RY71)

(6) Is the output voltage of the IC01(KA7812) and IC02(KA7805) normal ?

Turn off the power, and then turn it on again five seconds later.

Does the "ON" LED lamp of the assembly panel PCB blink for three minutes, and then go off?

Y

Check whether the "ON" LED lamp is on and the operation starts when pressing the on/off button of the remocon or assembly panel PCB?

Y

Check whether the compressor is activated in three minutes after turning on the power with the "COOL" or

"HEAT" LED lamp being switched on when selecting the cool mode of the remocon or assembly panel PCB.

N

Is the IC07 output normal?

When the compressor is ON, IC07 No. 14 pin –> Low.

Y

Does the relay(RY74) operate normally?

When the compressor is ON, the RY71 should operat.

Y

Is the compressor normal?

Y

Replace the compressor.

N

N

Y

N

N

N

Go to the clause "No power".

• Go to the clause "when he remocon does not operate".

• Go to the clause "when he assembly panel PCB does not operate".

Normal operation.

• Check the IC07 for short and cold soldering.

• Replace the IC07.

• Check the relay coil resistance.

(resistance : About 150

Ω

±20

Ω

)

• Replace the relay.

• Check the operation of the O.L.P, and replace it if necessary.

• Check the compressor resistance.(0

Ω

: short,

∞Ω

: open)

Samsung Electronics 5-5

AWH-1808ER-2 6/13/98 10:27 AM Page 10

5-2-5 Wen the air swing motor is not operated

1) Check points

(1) Is the voltage of the power source normal ?(AC198V ~ AC264V)

(2) Is the electric wire in good contact ?(CN71, RY71)

(3) Is the swing motor conector in good contact?(CN71)

(4) Is the terminal connected to the swing motor in good contact?

(5) Is the output voltage of the IC01(KA7812) and IC02(KA7805) normal?

Turn off the power, and then turn it on again five seconds later.

Does the "ON" LED lamp of the assembly panel PCB blink for three minutes, and then go off?

Y

Does the air-swing motor operate when pressing the air-swing button of the remote control or assembly panel PCB?

N

Is the IC07 output normal?

When the air-swing motor is on, IC07 No.

10 pin ➝ Low

Y

Does the relay(RY 75) operate normally?

When the air-swing motor is operated, the

RY74 should be operated.

Y

Is the air-swing motor normal?

Y

Replace the air-swing motor.

N

Y

N

N

N

Go to the clause "No power".

Normal operation.

• Check the IC07 for a short and cold soldering.

• Replace the IC07.

• Check the relay coil resistance.

(Normal: About 400

Ω

)

• Replace the relay.

• Check the air-swing motor resistance.

(0

Ω

: short,

∞Ω

: open)

5-6 Samsung Electronics

AWH-1808ER-2 6/13/98 10:27 AM Page 11

5-2-6 When the fan motor does not operate

1) Check points

(1) Is the voltage of the power source normal ?(AC198V ~ AC264V)

(2) Is the electric wire in good contact ?(CN71, RY71)

(3) Is the starting condenser in good contact?

(4) Is the fan motor connector in good contact?(CN73)

(5) Is the output voltage of the IC01(KA7812) and IC02(KA7805) normal ?

Turn off the power, and then turn it on again five seconds later.

Does the "ON" LED lamp of the assembly panel PCB blink for three minutes, and then go off?

Y

Check whether the "ON" LED lamp is on and the operation starts when pressing the on/off button of the remocon or assembly panel PCB.

Y

Does the LED lamp of the assembly panel PCB turn to High, and Low when setting the remocon or assembly panel PCB TACT switch (fan speed) to High, and LOW?

Y

Is the IC07 output normal?

When the fan motor is High, IC07 No. 13 pin –> LOW.

When the fan motor is Low, IC07 No. 12 pin –> LOW.

Y

Does the relay(RY 72, 73) operate normally?

When the fan motor is High, RY72 should operate.

When the fan motor is Low, RY73 should operate.

Y

Is the fan motor normal?

Y

Replace the fan motor.

N

N

N

N

N

N

Go to the clause "No power".

• Go to the clause of "when the remocon does not operated".

• Go to the clause "when the assembly panel PCB is not operated".

• Go to the clause "when the remocon does not operated".

• Go to the clause "when the assembly panel PCB is not operated".

• Check the IC07 for a short and cold soldering.

• Replace the IC07.

• Check the relay coil resistance.

(Normal: About 400

Ω

)

• Replace the relay.

• Check the fan motor resistance.

(0

Ω

: short,

∞Ω

: open)

Samsung Electronics 5-7

AWH-1808ER-2 6/13/98 10:27 AM Page 12

5-2-7 Wen the 4-way valve is not operated

1) Check points

(1) Is the voltage of the power source normal ?(AC198V ~ AC264V)

(2) Is the electric wire in good contact ?(CN72)

(3) Is the 4-way valve conector in good contact?(CN72)

(4) Is the output voltage of the IC01(KA7812) and IC02(KA7805) normal?

(5) Is the unit heating cycle?

Turn off the power, and then turn it on again five seconds later.

Does the "ON" LED lamp of the assembly panel PCB blink for three minutes, and then go off?

Y

Does the 4-way valve operate when pressing the HEAT button of the remote control or assembly panel PCB?

N

Is the IC077 output normal?

When the air-swing motor is on, IC07 No.

11 pin ➝ Low

Y

Does the relay(RY 74) operate normally?

When the air-swing motor is operated, the

RY74 should be operated.

Y

Is the 4-way valve coil normal?

Y

Replace the 4-way valve coil.

N

Y

N

N

N

Go to the clause "No power".

• Normal operation

(Operating the "Heat", relay about 3 minutes until the "4-way valve" operates.)

• Check the IC07 for a short and cold soldering.

• Replace the IC07.

• Check the relay coil resistance.

(Normal: About 400

Ω

)

• Replace the relay.

• Check the fan motor resistance.

(0

Ω

: short,

∞Ω

: open)

5-8 Samsung Electronics

AWH-1808ER-2 6/13/98 10:27 AM Page 14

6. Exploded View and Parts List

6-1 Main unit

6-1

14

7

1

4

13

12

34

5

32

31

6

15

10

9

2

3

16

2

3

4

8

6

5

1

14

13

11

33

10

11

9

8

27 28

29

24

25

26

30

19

20

19

18

17

21

22

23

Samsung Electronics

AWH-1808ER-2 6/13/98 10:27 AM Page 15

■ Part List

DB75-10022A

DB90-20167A

DB61-30452C

DB65-10089A

DB31-10117C

DB70-10603A

DB67-50028A

DB96-30263A

DB95-10263B

DB60-30028A

DB73-10004A

DB63-10165B

DB60-30018A

DB47-20001P

DB63-10355A

DB96-10564A

DB96-10557A

DB32-10045A

DB27-10030A

Code No.

DB92-10290B

DB63-30129A

DB63-40013A

DB96-40166A

DB73-20096A

DB62-31613A

DB71-50025A

DB70-10604A

DB94-30080A

DB61-10146A

DB70-10602A

DB72-10147A

DB70-10605A

DB90-10548B

DB61-40125A

31

32

33

34

26

27

28

29

30

21

22

23

24

25

16

17

18

19

20

11

12

13

14

15

8

9

6

7

10

No.

3

4

1

2

5

ABS

ASS'Y

SGCC-M

SK5-CSP

220~240V/50Hz

SGCC-M(Z22)

ABS+G/F

ASS'Y

48B180JV1E7

M8, ZPC

EPDM

NORYL, BLK

M5, SM20C

MRA12016-12007

CR

ASS’Y

ASS’Y

ASS’Y

ASS’Y

Specification

HIPS

ABS

FO-PS

ASS'Y

NBR

OD12.7

DAWH-3NB

SGCC-M(Z22)

ABS+G/F

FO-PS

SGCC-M(Z22)

FO-PU

SGCC-M(Z22)

ASS'Y

PP

Description

FRONT GRILLE

GUARD-AIR FILTER

TRAY-DRAIN

EVAPORATOR

RUBBER-COVER PIPE

4-WAY V/V(ASS’Y)

WIRE-HOLDER

PLATE-EVAP CASING

BLOWER-ASS'Y

CASE-EVAP

PLATE-PARTITION

SEAL-COVER

PLATE-COVER

CABINET

HOLDER-THERMISTER

DAMPER LEVER

PLATE-BOTTOM

SUPPORTER

CLIP-MOTOR

MOTOR-FAN

PLATE-COND CASING

FAN-PROPELLER

CONDENSER

ASS'Y-COMP

NUT-WASHER

GROMMET-ISOLATOR

COVER-TERMINAL

NUT-FLANGE

OLP

CAP-DRAIN

ASS’Y CAPI TUBE

ASS’Y DISTRIBUTOR

THEMISTOR COND

ASS’Y SOLENOID COIL

1

1

1

1

1

1

3

1

1

1

1

1

1

3

1

2

1

1

1

1

1

1

1

1

1

1

1

2

1

Q'TY

AWH-1808ER

1

1

1

1

1

Remarks

Samsung Electronics 6-2

AWH-1808ER-2 6/13/98 10:27 AM Page 16

6-2 Ass’y Control

10

9

14

13

11

2

3

4

8

6

5

1

6-3 Samsung Electronics

AWH-1808ER-3 6/13/98 10:29 AM Page 1

■ Part List

8

9

6

7

10

11

12

13

14

No.

3

4

1

2

5

Code No.

DB61-60091A

DB66-30142A

DB60-50010B

DB66-70022A

DB95-20065F

2501-001059

DB66-30143A

DB93-10464A

DB93-10465A

DB39-20358A

DB39-10084A

DB32-10005C

DB64-70074A

DB64-40163A

Description

FRAME-BLADE

BLADE-V

WASHER-STOP

ARM-BLADE

SWING-MOTOR

C-OIL

BLADE-H

ASS'Y MAIN PCB

ASS'Y PANEL PCB

C/W DISPLAY

POWER CORD

THERMISTOR

PANEL-CONTROL

INLAY-CONTROL

Specification

PS

PP

SUS-304

ABS

M2LJ49ZU32

6/40µF X

450VAC

PP

AWH-1808ER

AWH-1808ER

AWH-1808ER

AP3, 15A/250V

10KD SAH-151CH

PS

PC

Q'TY

AWH-1808ER

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Remarks

Samsung Electronics 6-4

AWH-1808ER-3 6/13/98 10:29 AM Page 2

6-3 ASS’Y REMOCON(DB93-30046E)

■ Part List

3

4

1

2

5

6

No.

Code No.

DB93-30026E

DB61-10022A

DB61-10011A

DB73-20013A

DB93-10462A

DB64-40008B

DB63-10081A

Description

ASS’Y REMOCON

CASE REMOCON(UPP)

CASE REMOCON(LOW)

RUBBER(BT)

ASS’Y REMOCON PCB

WINDOW REMOCON

COVER BATTERY

Specification

AHR-100

ABS

ABS

NBR

AWH-1808ER

PC T1.5

ABS, T2.0

Q'TY

AWH-1808ER

1

1

1

1

1

1

1

Remarks

6-5 Samsung Electronics

AWH-1808ER-3 6/13/98 10:29 AM Page 4

7. Block Diagram

7-1 Refrigerating Cycle Block Diagram

T1

Capillay tube

Check V/V

Heat exchanger

(Evaporator)

Heat exchanger

(Condenser)

T2

7-2 Basic Structure

7-2-1 Micom Control Diagram

MICOM

Indoor Temperature Sensor outdoor Temperature Sensor

Room Temperature Sensor

Deice Temperature Option

Deice Time Option

Receiving Unit of Remocon

A/D converter

Remocon Single Receiving

Remote Cotrol

FAN SPEED(HIGH,LOW)

TEMP. SETTING(▼▲)

TIMER SETTING(▼▲)

COOL

HEAT

FAN

ON/OFF

AIR SWING

• Air swing motor control

• Compressor control

• 4-way valve control

• Buzzer control

• Temperature control

Reset Circuit

Oscillation Circuit

7-1

Compressor

4-way valve

Cooling

Heating

LED CONTROL

• Mode(COOL, HEAT, FAN)

• ON

• Fan speed (Low, HiGH)

• Temperature Display

• Deice

• Temp

• HR

Compressor

Fan motor

4-way valve

Air swing motor

Power circuit (DC 5V)

Power circuit (DC 12V)

Down Trans (AC13V ~ AC17V)

Power input (AC198V ~ AC264V)

Samsung Electronics

AWH-1808ER-3 6/13/98 10:29 AM Page 5

MODEL OPTION

TEMPERATURE OPTION

GND

RS-232C

RS-232C

GND

GND

GND

BUZZER

GND

ROOM THERMISTOR

INDOOR PIPE THERMISTOR

OUTDOOR PIPE THERMISTOR

GND

GND

GND

DEICE TEMPERATURE OPTION

DEICE TIME OPTION

VCC

VCC

GND

GND

GND

GND

GND

REMOTE CONTROL SINGLE INPUT

RESET IC OUTPUT

GND

GND

10MHz RESONATOR

10MHz RESONATOR

GND

7-2-2 Micom Pin Assignment

( MB89635)

19 AVcc

20 AVr

21 AVss

22 P74

23 P73/INT3

24 P72/INT2

25 P71/INT1

26 P70/INT0

27 RST

28 MOD0

29 MOD1

30 X0

31 X1

32 Vss

1 P31

2 P30

3 P43

4 P42/UI2

5 P41/UO2

6 P40

7 P53

8 P52

9 P51/BZ

10 P50

11 P60/AN0

12 P61/AN1

13 P62/AN2

14 P63/AN3

15 P64/AN4

16 P65/AN5

17 P66/AN6

18 P67/AN7

P12 46

P13 45

P14 44

P15 43

P16 42

P17 41

P20 40

P21 39

P22 38

P23 37

P24 36

P25 35

P26 34

P27 33

P01 55

P02 54

P03 53

P04 52

P05 51

P06 50

P07 49

P10 48

P11 47

Vcc 64

P32 63

P33 62

P34 61

P35 60

P36 59

P37 58

Vss 57

P00 56

<MODEL OPTION>

P31(#1) OPTION

HIGH COOLING

NOTE

COOLING ONLY

LOW HEAT PUMP AWH-1808E(HEAT PUMP)

<DEICE TIME OPTION>

AN6(#7)

GND ~1V 2V~ 3V~ 4V~

0.9V

~1.9V

2.9V

3.9V

4.9V

standard standard

+1min standard

+2min standard

+3min standard

+4min

Samsung Electronics

VCC

GND

GND

GND

GND

GND

COMPRESSOR

HIGH(FAN MOTOR)

LOW(FAN MOTOR)

4-WAY

SWING MOTOR

GND

TEST(Time shortened)

Key Control

GND

GND

NC(OUTPUT PORT)

LED DISPLAY CONTROL

<TEMPERATURE DISPLAY OPTION>

P30(#2) OPTION

HIGH

LOW

°

C

°

F

NOTE

TEMP DISPLAY UNIT

TEMP DISPLAY UNIT

<DEICE TEMPERATURE OPTION>

GND ~1V 2V~ 3V~ 4V~

0.9V

~1.9V

2.9V

3.9V

4.9V

AN7(#18) standard

-2 ° C standard

-1 ° C standard standard

+1 ° C standard

+2 ° C

7-2

AWH-1808ER-3 6/13/98 10:29 AM Page 6

8. PCB Diagram

8-1 Main PCB ( ASS'Y CODE NO : DB93-10464A )

8-1 Samsung Electronics

AWH-1808ER-3 6/13/98 10:29 AM Page 7

■ Part List

2202-000121

DE47-40024A

DE47-30019A

2001-000065

DE27-20017A

3501-000399

2802-000103

2001-000290

DB09-10150A

DB47-90081A

DE13-20009A

DE30-20016A

1405-000147

3711-002662

3711-000940

3711-003783

3711-003405

3711-000203

3711-003407

DE39-60001A

DE41-10411A

DE26-20114A

DE60-60012A

2001-000241

Code No.

DB93-10464A

DE32-10037A

0402-000559

DE13-20008A

DE13-20016A

DE60-10100A

DE62-30039A

2001-000429

2001-000218

2001-000003

2001-001172

2202-000780

2401-000710

2401-000180

2401-001397

Description

ASSY MAIN PCB

FUSE

DIODE RECT

IC VOLT REGU

IC VOLT REGU

SCREW TAPPING

HEAT SINK

R-CARBON

R-METAL FILM

R-CARBON

R-CARBON

C-CERAMIC

C-AL

C-AL

C-AL

C-CERAMIC

FUSE HOLDER

SPARK KILLER

R-CARBON

IC-DRIVE

RELAY

CERAMIC RESONATOR

R-CARBON

IC-MCU

RELAY POWER

IC

BUZZER

VARISTOR

CONNECTOR HEADER

CONNECTOR WAFER

CONNECTOR WAFER

CONNECTOR WAFER

CONNECTOR WAFER

CONNECTOR WAFER

WIRE-SO, COPPER

PCB MAIN

TRANS L.V

PIN EYELET

R-CARBON

31

32

33

34

35

26

27

28

29

30

36

37

38

39

21

22

23

24

25

16

17

18

19

20

11

12

13

14

15

8

9

6

7

10

No.

3

4

1

2

5

Specification

AWH-1808ER

FST 250V 3.15A

D4G 400V

KA7812 TO-220AB

KA7805 TO-220AB

M3*6 FEFZY

AL H25

RD 1/8 TP 102-J

RD 1/8 TP 103-F

RD 1/8 TP 331-J

RD 1/2T 621-J

100nF/50V

2200uF/25V

1000uF/35V

470uF/25V

101K 0A/50V

FH-51H 7.5A

ESQ1201

RD 1/4 TP 103-J

KID 65003AP

JQ1A-12V

10Mhz

RD 1/8 TP 103-J

MB89635

JM1aN DC12V

KA7533 DIP

CBE 2220BA STICK

14D-471K

JSW250-02 WHT

SMW250-04 WHT

53134-1810 WHT

YW396-03AV BLK

YW396-03AV WHT

YW396-03AV RED

PI 0.6 SN 52MM

AWH-1808ER

230V 17V

OD 2.5 L 3.0

RD1/8TP152-J

Q'TY

6

1

1

1

1

F701

D101~D106

IC01

IC02

Remarks

1

3

1

1

3

R201

R401, R402, R403

R404~406

7

1

4

1

1

1

1

1

1

1

1

1

1

9

1

R602

C101, C103, C201,C401~403, C501, C502, C901

C104

C102

C105

C404

F701

SK71

R501

IC07

RY72~RY75

X501

R601, 407~410, 412, 301

IC04

RY71

1

1

1

1

1

1

1

1

1

7

1

1

5

1

IC03

BZ61

VA71

CN41

CN42

CN92

CN72

CN71

CN73

J1-J5, SW01, OP01

PCB

TN71

TN71

R411

Samsung Electronics 8-2

AWH-1808ER-3 6/13/98 10:29 AM Page 8

8-2 Display PCB (ASS'Y CODE NO : DB93-10465A)

■ Part List

No.

12

13

14

15

8

9

10

11

16

17

18

6

7

4

5

1

2

3

Description

ASS’Y PANEL PCB

LED LAMP

LED LAMP

MODULE REMOCON

CONNECTOR WAFER

LED DISPLAY

IC-SOURCE DRIVE

WIRE-SO, COPPER

SW TACT V

PCB PANEL

DIODE SWITCHING

R-CARBON

R-CARBON

LED-DISPLAY

IC-DRIVE

C-AL

C-CERAMIC

R-CARBON

Code No.

DB93-10465A

DB07-10021A

DB07-10019A

DB32-50023A

3711-003782

DB61-90080A

1003-000217

DE39-60001A

3404-000280

DE41-10412A

0401-000005

2001-000776

2001-000065

DE07-20028A

DE13-20017A

2401-001212

2201-000796

2001-000036

Specification Q'TY

AWH-1808ER

LTL-4233(GRN)

LTL-4213(RED)

TSOP 1238TBI

53156-1810WHT

ABS

UDN2981A

PI 06 SN 52MM

KPT-1115A

AWH-1808ER

1N4148

RD 1/2 TP 471

RD 1/4 TP 103-J

SSD-A3202GMT-S GR 1

KID65003AP 1

7

1

1

6

1

6

4.7uF 50V

1nF/50V

RD 1/4 TP 331-J

1

1

1

1

1

1

1

1

7

2

Remarks

LE03,LE05~LE10

LE02,LE04

RM41

CN91

LE01

IC02

C401

C402

R401

IC01

J1~J11, OP01

SW91~SW96

PCB

D901~D906

R902~R908

R402

8-3 Samsung Electronics

AWH-1808ER-3 6/13/98 10:29 AM Page 9

8-3 ASS’Y PCB-REMOCON (ASS’Y CODE NO : DB93-10462A)

■ Part List

No.

Description

4,5

6

7,8

9

1

2

3

PCB REMOCON

IC-MCU

RESONATOR

IR LED

C-ELEC

TR CHIP

R-CHIP

10

11

R-CHIP

R-CHIP

12,13 C-CERAMIC CHIP

14 BATTERY S/P-PLUS

15 BATTERY S/P-MINUS

(BOTTOM)

Code No.

DB09-10127A

(TOP)

Specification

KS51810-19

CSB 455EBL

SI5312-H

50V 4.7uF

2SC2412

RMC 1/10 1.0-J

RMC 1/10 560K-J

RMC 1/10 330-J

CL21 C101J BNCS

SWPB

SWPB

Q'TY

2

1

2

1

1

1

1

2

1

1

1

1

PCB

IC1

X1

LED1, LED2

C3

Q1,Q2

R1

-

R3

R4

C1, C2

+

Remarks

Samsung Electronics 8-4

AWH-1808ER-3 6/13/98 10:29 AM Page 10

9. Wiring Diagram

9-1 AWH-1808ER

9-1

AWH-1808ER : 6/40µF X 450VAC

AWH-1808ER-4 6/13/98 10:48 AM Page 1

10. Schematic Diagrams

10-1 Indoor Unit

Samsung Electronics 10-1

AWH-1808ER-3 6/13/98 10:30 AM Page 11

10-2 Remote Control

10-2 Samsung Electronics