SAMSUNG AD18A1E2 Service Manual

ROOM AIR CONDITIONER

INDOOR UNIT
AD24A1(B1)E12
AD18A1(B1)E09
AD19A1(B1)E07
AD19A1(B1)E12

SERVICE

OUTDOOR UNIT
UD24A1(B1)E2
UD18A1(B1)E2
UD19A1(B1)E2

Manual

CONTENTSAIR CONDITIONER

1. Pre c a u t i o n s

2. Product Specifications

3. Operating Instructions and

I n s t a l l a t i o n

4. Disassembly and Reassembly

5. Tro u b l e s h o o t i n g

6. Exploded Views and Parts List

7. PCB Diagrams

8. Wiring Diagrams

9. Schematic Diagrams

© Samsung Electronics Co., Ltd. NOV. 1998.

Printed in Korea.
Code No. DB81-10179A(1)

1. Precautions

1 . Warning: Prior to re p a i r, disconnect the

power cord from the circuit bre a k e r.

2 . Use proper parts: Use only exact re p l a c e m e n t

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
them. Using defective tools or test equipment
may cause problems later-intermittent contact,
for example.

4 . Power Cord: Prior to re p a i r, check the power

c o rd and replace it if necessary.

5 . Avoid using an extension cord, and avoid tap-

ping into a power cord. This practice may
result in malfunction or fire .

6 . After completing repairs and re a s s e m b l y,

check the insulation resistance. Pro c e d u re :
Prior to applying power, measure the re s i s­tance between the power cord and the gro u n d
terminal. The resistance must be greater than
30 megohms.

Fig. 1-1 Avoid Dangerous Contact

Fig. 1-2 No Tapping and No Extension Cords

7 . Make sure that the grounds are adequate.

8 . Make sure that the installation conditions are

s a t i s f a c t o r y. Relocate the unit if necessary.

9 . Keep children away from the unit while it is

being re p a i re d .

1 0 . Be sure to clean the unit and its surro u n d i n g

a re a .

Fig. 1-3 No Kids Nearby!

Fig. 1-4 Clean the Unit

Samsung Electronics

1-1

M E M O

1-2

Samsung Electronics

4. Disassembly and Reassembly

Stop operation of the airconditioner and remove the power plug from the wall outlet before
repairing the unit

4-1 Indoor Unit

No Parts Procedure Remark

1 Front Grille 1) Stop the air conditioner operation and

block the main power.

2) Seperate the tape of front.
Panel upper.

3) Contract the second finger to the left and
right handle and pull to open the inlet
grille.

4) Take the left and right filter out.

5) Loosen one of the right fixing screw and
seperate the terminal cover.

6) Open the cover screw and loosen three fix­ing screws of front grille.

7) Pull the upper left and right of discharge
softly for the outside cover to be pulled
out.

8) Pull softly the lower part of discharge and
push it up

Caution:

Assemble the front panel and fix the hooks
of left and right.

Samsung Electronics

4-1

Disassembly and Reassembly

No Parts Procedure Remark

2

3

Filter Frame

Ass'y Tray Drain

1) Loosen the left and right screw of the
Holder Filter, and Separate the Holder
Filter.

1) Do " ", above.

1 2
Separate the holder at the rear side of
Indoor unit.

2) Take the display PCB out.
(Center of indoor unit).

3) Loosen three fixing screws of left and
right.

4) Pull tray drain out from the back body.

4-2

4

Main PCB

1) Do " ", above

1 2

2) Take all the connector of PCB upper side
out.
(Inclusion Power cord)

3) Separate the outdoor unit connection wire
from the terminal block.

4) If pulling the Main PCB up. it will be taken
out.
(Separate the TRANS hook. it before).

Samsung Electronics

Disassembly and Reassembly

No Parts Procedure Remark

5

Heat Exchanger

1) Do " 1 2 3 4 ", above.

2) Loosen the left screws of the heat
exchanger.

Lifting the heat exchanger up a little to
push the up side for separation from the
indoor unit

6

Fan Motor and

1) Do " 1 2 3 4 5 ", above.

Cross Fan

2) Loosen the fixing two screws and separate
the motor holder.

3) Loosen the fixing screw of motor fan.
(By use of M3 wrench)
Separate the motor from the fan.
Separate the fan motor the left holder
bearing.

Samsung Electronics

4-3

4-2 Outdoor Unit

No Parts Procedure Remark

1

2

Cabinet

Fan Motor &

Propeller Fan

1) Turn off the unit and remove the power
cable

2) Remove the top cover.

3) Remove the control box cover.

4) Unplug the ass'y cable.

5) Remove the cabi-side.

6) Remove the cabi-front.

* When you assemble the parts, check if the

each parts and electric connectors are fixed
firmly.

1) Do Procedure 1 above.

2) Remove the nut flange.
(Turn to the right to remove as it is a left
turned screw)

3) Disassemble the propeller fan.

<UD24A1(B1)E2>

<UD18A1(B1)E2/UD19A1(B1)E2>

<UD24A1(B1)E2>

4-4

<UD18A1(B1)E2/UD19A1(B1)E2>

Samsung Electronics

3. Operating Instructions and Installation

3-1 Operating Instructions

3-1-1 Name & Function of Key in remote controller

NO

NAME OF KEY
1
2

3

MODE

4
5

6

7

TURBO

OFF

(UP)

(DOWN)

On/Off Button. Use this button to start and stop air conditioner.
Temp. up button.

If the button is pressed once, the setting temperature is increased by 1°C
Temp. down button.

If the button is pressed once, the setting temperature is decreased by 1°C
Each time you press this button,

MODE is changed in the following order.

Use this button to provide heavy duty cooling & Heating for 30 minutes.

Set up the reserve or cancel the timer off quickly

Use this button for sleep operation.
(The SLEEP mode can be selected at COOL and HEAT mode.)

Adjusts air flow vertically,
each time you press this button.

FUNCTION OF KEY

: Auto Mode
: Cool Mode
: Dry Mode

: Fan Only
: Heat Mode

10
11
12
13

14

15

Each time you press this button,

8

C

9

O
V
E
R

T

I

M

E
R

ON TIMER
OFF TIMER

SET
CANCEL

(UP)

(DOWN)

TIME

FAN SPEED is changed in the following order.

Set up the time that operation start.
Set up the time that operation stop.

Use this button to reserve the timer on and timer off.
Use this button to cancel the timer on and timer off.

If the button is pressed once, the time increase by one minute
during the time set mode, and ten minutes during the timer set mode.

If the button is pressed once, the time decrease by one minute
during the time set mode, and ten minutes during the timer set mode.

Without regard to ON/OFF condition in remote controller,
use this button to set current time.
Adjust the current time using button.
(Data can be transmitted after setting up the time)

Samsung Electronics

3-1

Operating Instructions and Installation

3-1-1(a) Heat Pump

1. A U TO MODE : In this mode, operation
mode(COOL, HEAT, DRY) is selected auto­matically by the room temperature of initial
o p e r a t i o n .

Room Temp
Tr≥ 21°C+∆T
21°C +∆T>Tr

∆T= -2°C, -1°C, 0°C, +1°C, +2°C
∆T is controlled by setting temperature

up/down key of remote contro l l e r

2. C O O L MODE : The unit operates accord i n g
to the diff e rence between the setting and
room temperature. (18°C~30°C)

3. H E AT MODE : The unit operates accord i n g
to the diff e rence between the setting and
room temperature.(16°C~30°C)
* P revention against cold wind : For about
3~5 minutes after initial operation, thermo
c o n t rol or “de-ice”, the indoor fan will
either not operate or operate very slow­ly(510 rpm), then switch to the selected fan
speed. This period is to allow the indoor
unit's heat-exchanger to prewarm before
emitting warm air.
*High temperature release function : The
outdoor unit for and compressor ON/OFF
c o n t rol for safety operation, when the over­heat is heat exchanger of indoor unit.
*De-ice : Deicing operation is controlled by
indoor unit's heat exchanger temperature
and accumulating time of compre s s o r ' s
o p e r a t i o n .
De-ice end by sensing of the pro c e s s i n g
time by de-ice condition.

Cool Operation (Set Temp:AUTO SETTING)

Heat Operation (Set Temp : 22°C+∆T)

Operation Type

4. D RY MODE : Has 3 states, each determined
by room temperature .
The unit operates in DRY m o d e .
*Co m p ressor ON/OFF Time is contro l l e d
compulsorily(can not set up the fan speed,
always bre e z e ) .
* P rotective function : Low temperature
release. (Prevention against fre e z e )

5. TURBO MODE : This mode is available in
A U TO, COOL, HEAT, DRY, FAN MODE.
When this button is pressed at first, the air
conditioner is operated “powerful” state for
30 minutes re g a rdless of the set tempera­t u re, room temperature .
When this button is pressed again, or when
the operating time is 30 minutes, turbo
operation mode is canceled and returned to
the previous mode.
*But, if you press the TURBO button in DRY
or FAN mode that is changed with A U TO
mode automatically.

6 . S L E E P MODE : Sleep mode is available

only in COOL or HEAT mode.
The operation will stop after 6 hours.
*In COOL mode : The setting temperature
is automatically raised by 1°C each 1hour
When the temperature has been raised by
total of 2°C, that temperature is main­t a i n e d .
*In HEAT mode : The setting temperature
is automatically droped by 1°C each 1hour.
When the temperature has been droped by
total of 2°C, that temperature is main­t a i n e d .

7. FAN SPEED : Manual (3 step), Auto (4 step)
Fan speed automatically varies depending
on both the diff e rence between setting and
the room temperature .

3-2

Samsung Electronics

Operating Instructions and Installation

8 . C O M P U L S O RY O P E R ATION :

For operating the air conditioner without
the remote contro l l e r.
* A U TO : The operating is the same func­tion that A U TO MODE in the remote con­t ro l l e r.

9 . SWING : BLADE-H is rotated vertically by

the stepping motor.
*Memory louver : When ON/OFF button is
p ressed at stop state, the BLADE-H re t u r n s
to its original location which is operating
state before stop
*Swing Set : Press the button under the
remote control is displayed on LCD the ,
and the blades move up and down, about 43°.
If the one more time press the button, bla­tles location is stop.

1 0 . Quick OFF TIMER: OFF timer (quick timer)

allows reservation or cancel the timer off
quickly
When OFF timer button is pressed at oper­ating state, LCD displays the polling state
s e q u e n t i a l l y.
The LCD also displays the time re m a i n i n g .

11 . 24-Hour ON/OFF Real Setting Ti m e r. : The

air conditioner is turned ON at a specified
time using .

ON TIMER

OFF TIMER : The air Conditioner is turned
OFF at a specified time using .

OFF TIMER

*ON TIMER : Only timer LED lights on.
*OFF TIMER : Both timer and operation
LED lights on.
*3 minutes delay timer.

1 2 . SELF Diagnosis

LED DISPLAY

o p e r-

T I M E R

a t i o n

FA N

Tu r b o

Check Point

I n t e r ruption of electric power and Power on.
Abnormal condition of the room sensor.

Abnormal condition of the indoor unit's heat exchanger sensor.

Indoor unit fan motor lock.

: LED blinking

: LED off

1 3 . BUZZER SOUND : Whenever the ON/OFF

button is pressed or whenever change
occurs to the condition which is set up or
select, the compulsory operation mode,
buzzer is sounded "beep"

Samsung Electronics

3-3

3-2 Installation

3-2-1 Selecting Area for Installation

Select an area for installation that is suitable
to the customer's needs.

3-2-1(a) Indoor Unit

1 . Make sure that you install the indoor unit in

an area providing good ventilation. It must
not be blocked by an obstacle affecting the
airflow near the air inlet and the air outlet.

2 . Make sure that you install the indoor unit in

an area allowing good air handling and
endurance of vibration of the indoor unit.

3. Make sure that you install the indoor unit in
an area where there is no source of heat or
vapor nearby.

4 . Make sure that you install the indoor unit in

an area from which hot or cool air is spre a d
evenly in a ro o m .

5 . Make sure that you install the indoor unit in

an area away from TVs, audio units, cord­less phones, fluorescent lighting fixture s
and other electrical appliances (at least 1
m e t e r ) .

6 . Make sure that you install the indoor unit in

an area which provides easy pipe connec­tion with the outdoor unit, and easy
drainage for condensed water.

7. Make sure that you install the indoor unit in
an area which is large enough to accomo­date the measurements shown in figure on
the next page.

3-2-1(b) Outdoor Unit

1 . Make sure that you install the outdoor unit

in area not exposed to the rain or direct sun
l i g h t .

(Install a separate sunblind if exposed to

d i rect sun light.)

2 . Make sure that you install the outdoor unit

in area allowing good air moment, not
amplifying noise or vibration, especially to

avoid disturbing neighbours.

(Fix the unit firmly if it is mounted in a

high place.)

3 . Make sure that you install the outdoor unit

in area providing good ventilation and
which is not dusty. It must not be blocked
by any obstacle affecting the airflow near
the air inlet and the air outlet.

4 . Make sure that you install the outdoor unit

in area free from animals or plants.

5 . Make sure that you install the outdoor unit

in area not blocking the traff i c .

6. Make sure that you install the outdoor unit
in area easy to drain condensed water fro m
the indoor unit.

7. Make sure that you install the outdoor unit
in area which provides easy connection
within the maximum allowable length of a
coolant pipe (10 meters).

N o t e

1. Add 10 grams of refrigerant (R-22) for

every 1 meter if the pipe length exceeds
the standard pipe length of 5 meters.

2. Maintain a height between the indoor and

outdoor units of less than 3 meters.

8 . Make sure that you install the outdoor unit

in an area which is large enough to accom­modate the measurements

shown in figure on the next page.

3-2-1(c) Remote Control Unit

1 . Make sure that you install the remote con-

t rol unit in an area free from obstacles such
as curtains etc, which may block signals
f rom the remote control unit.

2. Make sure that you install the remote con­t rol unit in an area not exposed to
d i rect sunlight, and where there is no sourc e
of heat.

3. Make sure that you install the remote con­t rol unit in an area away from TVs, audio
units, cordless phones, fluorescent lighting
f i x t u res and other electrical appliances (at
least 1 meter).

Caution

It is harmful to the air conditioner if it is used in the following environments: greasy areas (including areas near machines),
salty areas such as coast areas, areas where sulfuric gas is present such as hot spring areas. Contact your dealer for advice.

3-4

Samsung Electronics

3-2-2 Installation diagram of indoor unit and outdoor unit

Operating Instructions and Installation

A Indoor unit gas leak test check point

Indoor unit

Piping

1

3

2

Tape vinyl

B Drain hose installation

Cut the piping hole
sloped slightly

Piping may be laid to the rear, left,
right or down .

Right

Rear

Down

Remote controlRemote control holder

Rear

Left

1
2

3
4

5

Samsung Electronics

Piping (Liquid) 1/4” Clamper tube
Piping (Gas) 1/2”, 3/8” Installation plate
Installation tube Pipe-connection
Vinyl tape Screw
Putty Drain hose

6
7

8
9

10

A-UNIT

B-UNIT

Outdoor unit check point

10

3-5

Operating Instructions and Installation

3-2-2(a) Fixing the Installation Plate

(Unit : mm)

(Unit : mm)

Installation plate

280

340

Pipe hole
(ø65mm)

1. Determine the position of the pipe and drain hose hole
using the right figure and drill the hole with an inner
diameter of 65mm so that it slants slightly downwards.

2. If you are fixing the indoor unit to a… Then follow Steps…

Wall 3.

Window frame 4 to 6.

3. Fix the installation plate to the wall in a manner appro­priate to the weight of the indoor unit.

If you are mounting the plate on a concrete wall with
anchor bolts, the anchor bolts must not project by more
than 20mm.

4. Determine the positions of the wooden uprights to be
attached to the window frame.

3-2-2(b) Purging the Unit

5. Attach the wooden uprights to the window frame in a
manner appropriate to the weight of the indoor unit.

6. Using tapped screws, attach the installation plate to the
wooden uprights, as illustrated in the last figure oppo­site.

On delivery, the indoor unit is loaded with an inert gas.
All this gas must therefore be purged before connecting the
assembly piping. To purge the inert gas, proceed as fol ­lows.

Unscrew the caps at the end of each pipe.

Result : All inert gas escapes from the indoor unit.

• To prevent dirt or foreign objects from getting into

the pipes during installation, do NOT remove the
caps completely until you are ready to connect the
piping.

3-6

Samsung Electronics

3-2-2(c) Connecting the Assembly Cable.

The outdoor unit is powered from the indoor unit via the assembly
cable. If the outdoor unit is more than five metres away from the
indoor unit, the cable must first be extended to a maximum of
ten metre s .

1 . Extend the assembly cable if necessary.
2 . Open the front grille by pulling on the tabs on the lower right and

left sides of the indoor unit.

3 . Remove the screw securing the connector cover.

Indoor unit

Outdoor unit

1

(L)2(N)

3

COM

E

Earth

4 . Pass the assembly cable through the rear of the indoor unit and

connect the assembly cable to terminals 1, 2, 3, 5.

• Each wire is labelled with the corresponding terminal number.
5 . Firmly fix the ass’y cable with clamp wire holder.
6 . Pass the other end of the cable through the 65mm hole in the wall.
7 . Replace the connector cover, carefully tightening the scre w.
8 . Close the front grille.
9 . For further details on how to plug the other end of the assembly

cable into the outdoor unit, refer to page 3-8.

Operating Instructions and Installation

3-2-2(d) Installing and Connecting the Indoor Unit Drain Hose

C a re must be taken when installing the drain hose for the indoor unit to ensure that any condensa ­tion water is correctly drained outside.l When passing the drain hose through the 65mm hole drilled
in the wall, check that none of the following situations occur.

The hose must
NOT slope upw
ards.

To install the drain hose, proceed as follows.

1. If necessary, connect the 2-metre extension to the drain hose.
2 . If you are using the extension, insulate the inside part of the extension drain hose with a shield.

3. Pass the drain hose under the refrigerant piping, taking care to keep the drain hose tight.

4. Pass the drain hose through the hole in the wall, making sure that it is sloping downwards, as
shown in the illustrations above.

The end of the drain
hose must NOT be
placed in water.

Do NOT bend the
hose in different
directions.

Keep a clearance of at
least 5cm between the
end of the hose and the
ground.

Do NOT place the end
of the drain hose in a
hollow.

Shield

Drain hose Extension drain hose

Samsung Electronics

The hose will be fixed permanently into position once
the whole installation has been tested for gas leaks;
refer to page 16 for further details.

3-7

Operating Instructions and Installation

3-2-2(e) Outdoor unit installation

GAS LEAK TEST

Indoor unit check point

Check for gas leak from the flare nut connections with leak detector.

WIRING CONNECTION

Two electric cables must be connected to the outdoor unit:

• The assembly cable connecting the indoor unit to the outdoor unit.

• The power cable connecting the auxiliary circuit breaker to the outdoor unit.

1 Remove the terminal board cover on the side of the outdoor unit.
2 Connect the assembly cable to terminals 1 to 5 and connect the power cable to therminals A to B.

Each wire is labelled with the corresponding terminal number.
E n s u re the wire number of the indoor unit and the terminal number of
the outdoor unit.

3 Connect the earth wires to the earth terminals.

Outdoor unit check point

Outdoor unit

Refer to the page opposite for further details on how to check that
earthing is corre c t .

4 Replace the terminal board cover, carefully tightening the screw.
5 Connect the power cable to the auxiliary circuit breaker.

1

(L)

3

COM

1

(L)

Earth
terminal

Earth

2

(N)

3

COM

1

(L)2(N)

Terminal Block

Circuit Breaker
(Main Power supply cable)

Assembly cable

Earth
terminal

Earth
terminal

Earth

2

(N)

3-8

Indoor unit

A-unit

B-unit

Samsung Electronics

Installation of drain line

In heating and ”de-ice” operation, condensed
water may be generated.
Install drain line as following pro c e d u re .

1. Insert drain plug into hole and then connect
drain hose to drain plug.

• Inside diameter of drain hose is 18mm

Grounding

Operating Instructions and Installation

Drain hole

Drain plug

(The parts for this work are optional)

• A g rounding terminal can be found on
the outdoor unit as illustrated.

Grounding screw hole

1 . When an existing grounding terminal is avil-

a b l e .
( G rounding wire of ø1.6mm or larg e r < s o l i d

w i re>or 2mm2or larger <standard wire>)

Terminal used
exclusively for
grounding

Grounding resistance:
less than 100 ohms
(existing grounding electrode)

2 . Use of a grounding electro d e .

• Specifications of grounding electro d e .

Carbon plastic Steel core

Samsung Electronics

PVC-insulated wire(2mm2x3.5m), green Terminal, M4

3-9

Operating Instructions and Installation

3-2-2(f) Flare Modification

• Tools used

Flare modification procedure

1 ) Cut the pipe using a pipe cutter.

90°

3 ) Insert a flare nut into the pipe and modifty flare .

Oblique

Raughness

2 ) Remove burrs at the tip of the pipe cut.

Burr

* Unproper flaring

C a u t i o n : Burrs not removed may result in

leakage of gas.

Pipe

Reamer

D

A

Outer diameter A(mm)

ø6.35mm 1.3
ø9.52mm 1.8
ø12.7mm 2.0

3-10

Inclined Surface

damaged

Cracked Uneven

thickness

Samsung Electronics

Operating Instructions and Installation

3-2-2(g) Air Purging

CAUTION

The air in indoor unit and in the pipe must be purged. If air remains in the refrigeration pipes, it will affect the compressor,
reduce to cooling/heating capacity, and could lead to a malfuction. Refrigerant for air purging is not charged in the outdoor unit.
Use additional refrigerant as shown at the right figure. Each unit must be purged in turn

1. Check the piping connections

2. Connect the charging hose of low pressure side of
Manifold gauge to the packed valve having a charging
port (3/8” or 1/2” Packed valve)

3. Open the valve of the low pressure side of Manifold
gauge counterclockwise for 10 seconds, and then close
it to closed position.

4. Check for gas leakage.

-Check the flare connections for gas leakage.

5. Purge the air from the system.

-Loosen the liquid side(1/4”) flare nut after gas leakage
check

-Open the low pressure side valve of the Manifold
gauge for 10 seconds to purge the air from the system.
Repeat this three times or more.

-Tighten the liquid side(1/4”) flare nut when the low
pressure of the manifold gauge indicates about

0.5Kg/cm2.

6. Set valve cork of both liquid side and gas side of
packed valve to the open position.

7. Mount the valve stem nuts to the 2-way and 3-way
valve. And mount the service port cap to 3-way valve

8. Check for gas leakage.

-At this time, especially check for gas leakage from the
3-way valve’s stem nuts, and from the service port cap.

INDOOR
A-UNIT

INDOOR
B-UNIT

liquid side

Gas side

Pipeline

Flare Nut

Valve cork

Pipeline

Outdoor
unit

Charging Port

Charging hose of
Low pressure hose

Samsung Electronics

<Structure of 3-way valve>

3-11

Operating Instructions and Installation

3-2-2(h) Refrigerant Refill

If connecting pipe of more than 10 metres is installed, additional refrigerant should be charged by
extra metre. You don’t have to charge additional refrigerant up to 10 metres of connecting pipe.

1. Remove the valve stem cap and service port of 3-way
valve.

2. Connect the charging hose of low pressure side of
Manifold gauge to the packed valve having a charging
port(1/2” Packed valve) as shown at the right figure.

3. Operate the unit at the cooling mode.

4. Slowly open the valve of the low pressure side of
Manifold gauge counterclockwise until the low pres­sure of manifold gauge indicates 4.8 to 5.5 kg/cm2 (68
a 78psi) at the high cool operation (1-unit operation)
and the standard temperature.

It is recommend that refrigerant should be slowly put
in. If the refrigerant is put in too quickly, compressor
will be damaged.

• Piping length and the height

Pipe Size

AD24A1(B1)E12
AD19A1(B1)E12

AD18A1(B1)E09
AD19A1(B1)E07

Additional refrigerant charg e
( R 2 2 , g )

• When length of the pipe is
over 5u by the unit, you
should charge
the refrigerant Formulas

A-UNIT : 10gx(La- 1 0 ) / m

B-UNIT : 10gx(Lb- 1 0 ) / m
( La:the length of A-unit’s

pipe Lb:the length of

B-unit’s pipe)

1/4” 1/2”
1/4” 1/2”
1/4” 3/8”
1/4” 3/8”

INDOOR UNIT

M a x . p i p i n g

length

A
15m
15m
15m

15m

B

Max

height

BLIQUID GAS
3m
3m
3m
3m

A

OUTDOOR UNIT

5. Stop operation of the air conditioner.

6. Disconnect the charge hose of manifold gauge.

7. Close the cap of each valve.

3-2-2(i) Flare unt fixing torque

Outter diameter

Fixing Torque Final Torque

ø6.35(Liquid Side) 160 200
ø9.52(Gas Side) 300 350
ø12.7(Gas Side) 500 550

3-12

Torque (kg-cm)

INDOOR
A-UNIT

INDOOR
B-UNIT

Samsung Electronics

3-2-2(j) Pump down

1 . Confirm that both the 2-way and 3-way valves are

set to the open position.
(1) Remove the valve stem caps.
(2) Be sure to use a hexagonal wrench to operate

the Gas side valve stems.

2 . Operate the unit for 10 to 15 minutes.

3 . Stop operation and wait for 3 minutes, then con-

nect the charge set to the service port of the 3-way
v a l v e .
(1) Connect the charge hose with the push pin to

the service port.

Operating Instructions and Installation

2-Way Valve

4 . Air purging of the charge hose.

(1) Open the low-pre s s u re valve on the charge set

slightly to air purge from the charge hose.

5 . Set the liquid side 2-way valve to the closed posi-

t i o n .

6 . Operate the air conditioner at the cooling cycle

and stop operation immediately after setting the
3-way valve to the closed position when the
gauge indicates 0 kg/cm2G .
If the unit can not be operated at the Cooling
Mode(weather is rather cool), operate the unit at
the Trubo Mode. So that the unit can be operated.

7 . Disconnect the charge set, and mount the both 3-

way valve’s stem nuts and the service port cap.

Relocation of the air conditioner

• Refer to this pro c e d u re when the unit is re l o c a t e d .

1. Carry out the pump down pro c e d u re
( refer to the details of ‘pump down’).

2. Remove the power cord .

3. Disconnect the assembly cable from the
indoor and outdoor units.

4. Remove the flare nut connecting the indoor
unit and the pipe.
At this time, cover the pipe of the indoor
unit and the other pipe using a cap or vinyl
plug to avoid foreign material entering.

Cap

3-Way Valve

5. Disconnect the pipe connected to the outdoor
u n i t .

At this time, cover the valve of the outdoor
unit and the other pipe using a cap or vinyl
plug to avoid foreign material entering.

6. Make sure you do not bend the connection

pipes in the middle and store together with
the cables.

7. Move the indoor and outdoor units to a new

l o c a t i o n .

8. Remove the mounting plate for the indoor

unit and move it to a new location.

Samsung Electronics

3-13

Operating Instructions and Installation

3-2-3 Technical Document

3-2-3(a) AD24A1(B1)E12 / AD19A1(B1)E12

•Cooling Characteristics - Outdoor Te m p e r a t u re

Test Condition Indoor Unit (DB/WB) : 27/19
Vo l t a g e / F requency : 240V/50Hz

•In case of 2Unit, Capacity & Current multiplied by 2

Cooling Capacity & Air Outlet Temperature

13000

12000

11000

Cooling Capacity Air Outlet Temp

21/15 21/19 35/24 43/26

Outdoor Temperature(DB/WB)

Current & Low Pressure

7

Current

15

14

13

Low Pressure

7

3-14

6

5

4

21/15 21/19 35/24 43/26

Outdoor Temperature(DB/WB)

6

5

4

Samsung Electronics

•Heating Characteristics - Outdoor Te m p e r a t u re

Test Condition Indoor Unit (DB/WB) : 20/15
Vo l t a g e / F requency : 240V/50Hz

•In case of 2Unit, Capacity & Current multiplied by 2

Heating Capacity & Air Outlet Temperature

Operating Instructions and Installation

14000
13000
12000
11000
10000

9000

8000
7000

Heating Capacity Air Outlet Temp

7/6 2/1 -5/-6

44
42
40

38
36

34

32

30

Outdoor Temperature(DB/WB)

Current & Low Pressure

7

Current

Low Pressure

22

Samsung Electronics

6

5

4

7/6 2/1 -5/-6

17

12

7

Outdoor Temperature(DB/WB)

3-15

Operating Instructions and Installation

3-2-3(b) AD18A1(B1)E09 / AD19A1(B1)E07

• Cooling Characteristics - Outdoor Te m p e r a t u re

Test Condition Indoor Unit(DB/WB) : 27/19
Vo l t a g e / F requency : 240V/50Hz

Cooling Capacity & Air Outlet Temperature

10000

9000

8000

7000

10000

21/15

Cooling Capacity

35/24

Outdoor Temperature(DB/WB)

Air Outlet Temp.

43/26

Cooling Capacity & Low Pressure

Cooling Capacity Low Pressure

15

14

13

12

11

10

8

3-16

9000

8000

7000

21/15 35/24 43/26

Outdoor Temperature(DB/WB)

7

6

5

4

3

Samsung Electronics

Operating Instructions and Installation

• Heating Characteristics - Outdoor Te m p e r a t u re (B or C Indoor Unit Only)

Test Condition Indoor Unit(DB/WB) : 20/15
Vo l t a g e / F requency : 240V/50Hz

Heating Capacity & Air Outlet Temperature

10500

9500

8500

7500

10500

Heating Capacity

7/6 2/1

Outdoor Temperature(DB/WB)

Air Outlet Temp.

Heating Capacity & High Pressure

Heating Capacity High Pressure

44
43
42
41
40
39
38
37
36
35
34

24
23

9500

8500

7500

Samsung Electronics

22
21
20
19
18
17
16
15
14

7/6 2/1

Outdoor Temperature(DB/WB)

3-17

M E M O

3-18

Samsung Electronics

5. Troubleshooting

5-1 Items to be checked first

1 ) Is the voltage of the power corre c t ?

The input voltage shall be the rating Voltage ±10% range.
The airconditioner may not operate properly if the voltage is out of this range.

2 ) Is the link cable linking the indoor unit and the outdoor unit linked pro p e r l y ?

The indoor unit and the outdoor unit shall be linked by 4 cables.
Check the terminals if the indoor unit and outdoor unit are properly linked by the same number
of cables.
Otherwise the airconditioner may not operate pro p e r l y.

3 ) When a problem occurs due to the contents illustrated in the table below it is a symptom not re l a t-

ed to the malfunction of the airc o n d i t i o n e r.

NO Operation of air conditioner

1 The COOL operation indication LED (Green) blinks for 3minutes

when a power plug of the outdoor unit is plugged in for the
first time.

2 In a COOL operation mode, the compressor does not operate

at a room temperature lower than the setting temperature.
In a HEAT operation mode, the compressor does not operate at
a room temperature higher than the setting temperature.

3 Fan speed setting is not allowed in AUTO or DRY mode.

4 Compressor stops operation intermittently in DRY mode.

5 Compressor of the outdoor unit is operating although the

indoor unit is turned off in a HEAT mode.

6 Timer LED only of the indoor unit lights up and the

air conditioner does not operate.

7 The compressor and indoor fan stop intermittently in HEAT

mode.

8 Indoor fan and outdoor fan stop operation intermittently in

a HEAT mode.

9 The compressor stops intermittently in a COOL mode or DRY

mode, and fan speed of the indoor unit decreases.

Explanation

It indicates power is on. The LED stops blinking if the operation ON/OFF
button on the remote control unit is pushed.

The speed of the indoor fan is set to LL in DRY mode.
Fan speed is 5 steps is selected automatically in AUTO mode.

Compressor operation is controlled automatically in DRY mode depend­ing on the room temperature and humidity.

When the unit is turned off while de-ice is activated, the compressor
continues operation for up to 12 minutes (maximum) until the deice is
completed.

Timer is being activated and the unit is in ready mode.
The unit operates normally if the timer operation is cancelled.

The compressor and indoor fan stop intermittently if room temperature
exceeds a setting temperature in order to protect the compressor from
being overheated in a HEAT mode.

The compressor operates in a reverse cycle to remove exterior ice in a
HEAT mode, and indoor fan and outdoor fan do not operate intermittent­ly for within 20% of the total heater operation

The compressor stops intermittently or the fan speed of the indoor unit
decreases to prevent indoor heat exchanger from being frozen.

4 ) Indoor unit observes operation condition of the air conditioner, and displays self diagnosis details

on the display panel.

NO

Operating Timer Fan Turbo

1

(GREEN)
2
3
4
5

6

7

X

(GREEN)

X
X

(GREEN)

(GREEN)

Display

X

X

X

X

Samsung Electronics

Self Diagnosis

X

X

Restore from power failure (input initial power)

X

X

Indoor unit Room sensor Error (open or short)

X

X

Indoor unit heat exchanger temperature sensor Error (open or short)

X

Indoor fan malfunctioning (for speed is below 450rpm)

X

In case that the communication between the indoor unit and outdoor unit is not made for 60 seconds
Outdoor sensor Error (open or short)

X

- Outdoor sensor

- Pipe sensor A, B
The malfunction ot 4way valve in heat mode operation.

: Lamp blinking X: Lamp OFF

5-1

5-2 Checking and Testing Operations (Outdoor Unit)

To complete the installation, perform the following checks and tests to ensure that
the air conditioner is operating corre c t l y.

1. Review all the following elements in the installation:

• Installation site stre n g t h

• Piping connection tightness to detect any gas leakages

• Connection wiring

• Heat-resistant insulation of the piping

• Drainage

• Earthing wire connection

• Correct operations (follow the steps below)

• Room select switch in the indoor unit

ROOM NO

A unit
B unit

2. Apply the power to the outdoor unit.

- Check the fuse (250V~, 5A) : The fuse is open when the power line

OUTDOOR UNIT

Room select switch

A/R
B/R

(L, N) is short.

3. Check the connection of PCB communication of outdoor unit.
(Check whether the red LED of outdoor unit PCB is flickering.)

• The communication lamp is flickering after the display of each unit on

the outdoor PCB display part. (every one second).
LED is not flikering, if the connection is bad or the room select switch is
located in the wrong position.

- LED lamp (red) flickering after display of A (1 sec)

- LED lamp (red) flickering after display of b (1 sec)

- LED lamp (red) flickering after display of C (1 sec)
Note : PCB switch “C” is used for triple split multi air conditioner.

R e s u l t : If all of three units display lamps are flickering, the connection

w i res and the room option connections are good.

INDOOR UNIT

Room select switch(A, B unit)

A : PCB display
B : Red LED
C : PCB switch

If the lamp is not flickering, check as follows:

A. Check the display part of indoor unit of each unit (A,B) after outdoor

unit PCB switch S/W- A is on.
Check the status of each unit indoor room select switch.
(Adjust the select switch suitable to the unit A, B.)

- A unit : OPERATION LED on, TIMER LED flickering

- B unit : O P E R ATION LED on, TIMER and FAN LED flickering

- C unit : O P E R ATION LED on, TIMER and FAN, TURBO LED

B. Check the communication connection of outdoor unit PCB

(Check whether the red LED of outdoor unit PCB is flickering).
The communication lamp is flickering after the display of each unit on the

outdoor unit PCB. (every one second)

- LED lamp (red) is flickering after display of A (1 sec)

- LED lamp (red) is flickering after display of b (1 sec)

- LED lamp (red) is flickering after display of C (1 sec)

Result: If all of three units display lamps are flickering, the connection

flickering (In case of triple split multi air conditioner)

UNIT

OPERATION TIMER FAN TURBO
A
B
C

Lamp ON

w i res and the room option connections are good.

Lamp OFF Lamp Flasher

5-2

Samsung Electronics

Troubleshooting

DISPLAY EXPLANATION

Outdoor sensor error (Short/Open)

Outdoor A cond pipe sensor error (Short/Open)
Outdoor B cond pipe sensor error (Short/Open)

Outdoor C cond pipe sensor error (Short/Open)
A unit test operation error
B unit test operation error

C unit test operation error
A unit test communication error

B unit test communication error
C unit test communication error
A,B,C unit all communication error

A room test operation OK
B room test operation OK

REMARK

Be sure to check after applying the power
to the outdoor unit.

Display when the test operation finishes.

• When the pipe temperature difference of
indoor unit (pipe temperature 4 minutes before

- Actual pipe temperature) is less than 5˚C.

Be sure to check during the test operation.

Display of power application.
Display 4 minutes after the COMP is on.

C room test operation OK
Communication unit number display : A unit
Communication unit number display : B unit

Communication unit number display : C unit
(In case of triple split multi air conditioner)

•Normal operation

Unit A,B and C are changed every one second.
The communication lamp is flickering after

display of each unit.

(possibility to check the communication status)

•During the test operation the unit under test

is on and off every 0.25s.

Samsung Electronics

5-3

Troubleshooting

4. Check the test operation status by pressing the PCB switch
S / W- A and S/W-B of outdoor unit.

• Check the operation status by pushing the switch one at time.

• Perform the test operation only for the unit selected last.

• Check the pipe pre s s u re and the other operation status

during the test operation.

• Check items when the error occurs during the test operation

(each unit)

- Check there is enough re f r i g e r a n t .

- Check pipe connections.

OUTDOOR UNIT

a : PCB display
b : Red LED
c : PCB switch

EEXXAAMMPPLLE

E

• In case of unit A test, push once the PCB switch S/W- A ( s a m e
for unit B).

- In such a case, the indoor unit of unit A is operated
automatically by the outdoor unit.

- In case the unit A test stops, push once more the switch
S / W- A .

< Operation >

1. Once the test is started, the COMP is on and Good (displayed
Gd) or Error (displayed Er) is displayed after 4 minutes .

: Taking diff e rence between the present temperature of

indoor heat exchanger and the temperature 4 minutes later,
if the temperature diff e rence is over 5°C, the connection is
good or if the temperature diff e rence is below 5°C, the
connection is bad.

2. If the result of the test operation is good operation, is
possible for 30 minutes max.

If there is an erro r, the outdoor unit shall be stopped
i m m e d i a t e l y.
If an error occurs, push switch S/W- A or S/W-B once to
resume from the error status. Restart is then possible.

3. Once the test operation is completed, push switch S/W- A o r
S / W-B to finish the test.

4. Once the test is completed, operate the indoor unit normally.

5. Check the operation is normal. Start up is over.

5-4

Samsung Electronics

5-3 Fault Diagnosis by Symptom

5-3-1 When the power voltage is not available

1 ) Inspection items

(1) Is the power voltage is normal? (The rating voltage ±10% range)
(2) Is the power cord is correctly connected and is the contact good?
(3) Does the sound “ting” come out with the operation lamp (green) flickering when the

power is applied?
If it is not flickering, do inspect and repair in accordance with the following inspection
s e q u e n c e .

2 ) Inspection sequence

Is the operation lamp

No trouble

(normal)

Y

of indoor unit on when
the operation /stop but­ton of remote controller

is pressed?

N

Y

Is the operation lamp flickering with the

Apply the power

sound of “ting”?

N

Check of remote

controller

Normal

Is the communication

N

signal of remote con-

troller surely sent and

received ?

Y

Is there no problem

Y

between the connector

of Ass’y display PCB and

the receiving module?

N

Replace of Ass'y dis-

play PCB

Is the outdoor power connected normally?

Y

Is the fuse (F701, 250V, 3.15A) of PCB open?

N

Is the voltage at Socondary side of trans-

former of PCB (TN71)? (AC15V~AC25V)

Y

Is the output voltage of voltage regulator

IC (KA 7812) DC 10V and 12V?

Y

Is the output voltage of electrostatic voltage

regulator IC (KA 7805) DC 4.5 V - 5.5 V?

Y

N

Check of the installation method

and electrical circuit

Y

Replace the fuse (250V, 3.15 A).

N

Transformer is out of order -

replace

Repair and replace the power

N

source rectifying diode (D101-

D105) and KA7812.

N

KA7805 is out of order - replace

Samsung Electronics

Replace the main PCB of indoor unit

5-5

Troubleshooting

5-3-2 No Power (Outdoor unit)

1 ) Inspection items

(1) Á Is the power source normal (The rating Voltage ±10% range)?
(2) Is the outdoor power connected normally? ((1) of terminal : L, (2) of terminal : N, (3) of termi-

nal : communication) ?

(3) Check whether the display of outdoor PCB(SEG1) is shown in the order of A- B - C when the

power is applied.
If the display (SEG 1) is not shown the inspection and repair shall be performed in the
sequence of the following:

2 ) Inspection sequence

Check the com-

munication of PCB

Normal of

outdoor PCB

Replace the
transformer

Measurement of resistance

N N

of power transformer

Are they as follows?
1st side 190 ~ 210Ω

Assemble the transformer

Y Y

and whether the
LED 1 is continu-

ously flickering.

N

Replace the fuse

(F701) 250V 3.15A.

2nd side 0.9 ~ 1.1Ω

Y

in the normal way.

Put the power off and put it on after 5

Is the display of PCB shown in the

Are the power cord ((1) L, (2) N) and

communication line (3) of outdoor termi-

nal block connected correctly?

Is the terminal of PCB terminal (RY71,

72, 73) are assembled in the correct

Y

Insert the primary side of power trans-

former in the terminal GT01 and then is

the voltage of secondary side normal?

Is the fuse (F101, 250V 2 A) blown out?

Check whether the output voltage of

Check whether the output voltage of

Replace the outdoor unit Ass'y main PCB.

seconds.

sequence of A-B-C?

N

Y

position?

Y

Is the fuse open? (F701)

N

(AC 15V- AC 25V)

Y

N

IC01 (KA 7812) is DC 12V.

Y

IC02 (KA 7805) is DC 5V.

Y

Reinstall the power cord and commu-

N

nication line with the reference of

installation manual.

After watching the display of PCB

N

board, assemble the color and
shape of housing correctly as fol­lows:

BLK

BLK

WHT

RED

RED

Y

Replace the fuse F101 (250V 2 A).

Check and Replace the rectifying

N

diode of power side (D101 - D104)

N

and KA 7812.

Replace the IC 02 (KA7805)

5-6

Samsung Electronics

Troubleshooting

5-3-3 When the fan of indoor unit does not operate

1 ) Inspection items

(1) Is the power voltage normal?
(2) Is the connector of indoor fan with the good contact? (CN73)
(3) Is the soldering status of running condenser (CR71) with the good contact?
(4) Is connector of the Hall IC with the good contact (CN 43) ?
(5) Is the indoor fan rotating when it is under operation mode?
(6) Is the FAN LED (green) flickering when the indoor fan stalled (for more than 15 seconds) and

the trouble condition of speed detecting part?

Put the power off and put it on after 5 seconds.

Y

N

If the power is not available (indoor

unit), item no 5-3-1.

N

Replace of indoor unit PCB Ass'y.

Error occurs after the

indoor unit fan motor is

rotating for 15 seconds?

(FAN Lamp flickering)

Y

Replacement of indoor

unit fan motor.

Is the operation lamp flickering for 3 minutes and

Y

If the operation /stop button of the remote controller

is pressed, is the operation lamp flickering and then

is the indoor fan rotating after 5~6 seconds?

Y

Is AC 120V and higher shown across the indoor

then put off?

Y

Y

fan connector (CN73) ?

N

N

Is the type of MICOM (IC 04) Pin no.
63 old type ?

Is the pin no. 12 of IC 06 (KID 65003)
the old type?

Is the pin no 25 of MICOM

the old type?

Replace the indoor unit PCB Ass'y due to the

Micom defect.

120Hz

Y

120Hz

Y

N

N

Replace the IC 06 (KID 65003) and

SS71(G3MB202pl).

Replace Q401 (Ksc 945Y).

Samsung Electronics

5-7

Troubleshooting

5-3-4 When the outdoor unit fan does not operate

1 ) Inspection items

(1) The outdoor unit fan motor operates only when the operating conditions are satisfied and is

selected by the RY74(LOW) and PY75(HI) to ro t a t e .
(2) Is the power voltage normal?
(3) Is the contact of outdoor unit fan motor (CN 73) good?
(4) Is the winding resistance of outdoor unit fan motor 58Ω at Hi side and 143Ω at low side?
(5) The outdoor unit fan motor operates with Hi at over 28°C and low at below 26°C during the

cooling operation, and operates with Hi at below 14°C and low at over 15°C during the heating

o p e r a t i o n .

2 ) Inspection sequence

Apply the power to the outdoor unit and operate the indoor unit.

Is the indoor unit under operating conditions?

Y

Is it operating in the High speed?

N

Is the voltage shown across the connector (1)↔(3)

((1)↔(5))(AC 198V- AC 264V)?

N

Is no. 11 ( 12) of IC 06 at low? (DC 0.7 V)

N

Is pin no. 48(49) of IC 04 (MICOM) at High (DC 5 V)?

N

Is the outdoor unit fan motor under the operating

conditions?

N

Normal

N

Y

Y

Y

Y

Y

Check the winding resistance of outdoor unit fan

Defect of IC 04(MICOM) - replace the IC 04 or PCB

Normal (operation off)

Normal

motor winding resistance → Replace

Contact bad of RY 74(Low), RY 75(High)

→ Replace

Defect of IC06 output

→ Replace

ass’y

* Operating specification of the FAN of outdoor unit

(1) When the COMP is under the COMP ON condition during the cooling and heating operation,

Hi or LOW operation is selected according to the temperature condition of outdoor ro o m .
(2) When A room and B room are mixed to operate , it is always under low operation.
(3) Perform the comp ON/OFF control in the dry mode.
(4) When it is under the operation of anti-freezing, overload protection, defrost operation, it may

be Low, high or Off .
(5) Hi = High speed, Low = Low speed

5-8

Samsung Electronics

5-3-5 When the UP/DOWN Louver Moter Does Not Operate. (Initial Diagnosis)

1) Checklist :
(1) Is input voltage normal?
(2) Is the UP/DOWN louver motor properly connected with the connector (CN61)?

2 ) Troubleshooting pro c e d u re

Remove power cord and plug in again in approx. 5 seconds.

Troubleshooting

Is operating lamp blinking?

Y

Does operation start when swing button of the remote con-

trol unit pushed?

N

Voltage at pin #33-#36 of micom (ICO4)

change?(Squarewave)

Y

Volatge at pin #13, #14, #15, #16 of IC05 (KID65003)

change?(Squarewave)

Y

UP/DOWN louver motor is faulty.

Y

Check as in the procedure "No Power

parts". Refer to page 5-6.

Y

N

N

Driver IC05 (KID65003) is faulty.

Normal

Micom (IC04) is faulty.

Samsung Electronics

5-9

Troubleshooting

5-3-6 If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis)

1) Troubleshooting pro c e d u re

Remove power cord and plug in again approx. 5 Seconds

Is operation lamp blinking?

Y

“ “ sound heard from the indoor unit when

ON/OFF button on the remote control unit pushed?

N

Voltage of battery less than 2.5V (Remote Control Unit)?

N

LCD display status of REMOCON normal?

Y

Transmission display lamp ( ) blinking when

ON/OFF button on the remote control unit pushed?

Y

Voltage at PIN #30 of Remocon Micom change?

Y

Voltage at collecter of Q601 or Q602 change?

Y

N

Check as in the procedure “NO Power

parts”. Refer to page 5-6.

Y

Y

N

N

N

N

Normal

Replace battery.

LCD is faulty.

Replace button.

Micom is faulty.

Q601(C4375Y) or Q602(C1623Y) is faulty.

IR LED(CL-1L5EU) is faulty.

5-10

Voltage at pin #26 of micom (IC04) change (INDOOR UNIT)?

Y

Micom (IC04) is faulty.

N

Receiver module is faulty.

Samsung Electronics

5-3-7 When the 4 way valve (A,B) is not operating

1. Inspection items

(1) A re the 4 way valve A and B under the operating conditions?

(When the COMP A (4 way valve A ) and COMP B (4 way valve B) are on during the

heating operating)
(2) Is the power voltage normal?
(3) Is the connecting of 4 way valve A (CN 75) and B (CN 76) good?

2) Inspection sequence

Put off the outdoor unit power and put it on again after 5 seconds.

Select the heating operation of A(B) room by the remote controller.

Troubleshooting

Has 3 minutes passed after selection of A(B) room heating?

Y

Is the 4 way valve A(B) on?

N

Is the voltage shown across the 4 way valve A(B) connector

(CN 75, CN 76) ?

N

Is the pin no 47(46) of IC 04 ( MICOM) at high (DC 5V) ?

N

Is the 4 way valve A (B) under operating conditions?

N

Normal

N

Y

Y

Y

Y

Defect of RY 76 (RY 77) contact and coil →Replace

Defect of IC 06 (IC 07 ) output →Replace

Defect of IC 04(MICOM) - replace the IC 04 or PCB

Keep 4 way valve off.

Normal

the Relay

ass’y

*4 way valve operating conditions

(1) During the defrost control, put the 4 way valve A(B) off .
(2) During the heating operation put the 4 way valve A(B) on.
(3) The changeover of heating to cooling : put the 4 way valve off immediately (in case of B and C

ro o m ) .
(4) The changeover of cooling to heating : it is on after 170 seconds delay.

Samsung Electronics

5-11

Troubleshooting

5-3-8 When the compressor does not operate

1) Inspection items
(1) Is the COMP A under the operating conditions? (cooling operating of A, B(C) ro o m )
(2) Is the power voltage normal? (AC 198- AC 264V)
(3) A re the connector connection of COMP A ( RY 72, 73) and B(RY 71) good?
(4) The COMP A(B) is operated on and off in accordance with the operating conditions of indoor

unit of A (B. C) room.

2) Inspection sequence

Apply the outdoor power and operate the indoor unit A(B.,C)

in the cooling mode.

Y

Has 3 minutes passed COMP A(B) after the power initial

and COMP on/off

Y

Is comp A (B) on?

N

*Refer to the power measuring terminal

Is the voltage (AC 198- AC264V) shown across the terminal

of Comp A(B) power applied?

N

Is the voltage of pin no. 14, 13( 15) at low

(DC 0.7V)?

N

Is the voltage of pin no. 50, 51 (52) of IC 04 (micom) at

high (DC 5V)?

N

Is comp A (B ) under the operating condition?

N

N

Normal (comp A (B ) off) Is the comp A under the operating condition?

N

Y

Y

Defect of comp A (B) and running condenser

Keep Comp A (B ) off

Normal

→ Replace

Y

Defect of Ry 72, 73 (Comp B) and Ry 71(comp A) con-

tact and coil →Replace

Y

Defect of IC 06 output

→ Replace

Y

Defect of Ic 04 (micom)

→ Replace

Normal

(comp A (B ) off)

* Comp A (B ) operating conditions

(1) Comp A : Comp on /off control in accordance with the A room during the heating and cooling

indoor unit operation

(2) Comp B : Comp on /off control in accordance with the B(C) room during the heating and cool-

ing indoor unit operation

BLK

RY72

(4)

* Comp A(B ) power measuring terminal

(1) Comp A measuring ; RY 73 (4) ↔ RY 72 (4)
(2) Comp B measuring ; RY 71 (4) ↔ RY 72 (4)
(3) Power input ; RY 72 (3) ↔ RY 7 3 ( 3 )

5-12

RED

(3)

RY71

(3)

RY73

(3) (4)

BLK

(4)

WHT

RED

Samsung Electronics

5-4 PCB Inspection

5-4-1 Cautions for Part Replacement

1 . The human body carries much static

e l e c t r i c i t y. Before touching a part for re p a i r,
replacement or the similar purpose, be sure
to touch a grounded metallic portion by
hand to let the static electricity go thro u g h
the matallic portion to the earth.
Espectially when handling any micro
computer or IC, carefully remove such static
electricity before touching them.

2 . When repairing any part on a work bench,

be sure to place an insulative sheet on the
bench and always keep the sheet surface
neat without any metal fragments. If any
such fragment touches a part, a secondary
t rouble will possibly be caused in the part.

3. B e f o re replacing any parts, be sure to turn
o ff the power supply. If such replacement is
done with the power supply kept on, an
electric shock, short circuit or destruction of
a part may re s u l t .

4. During replacement or repair of a part,
c a refully handle it : The printed circ u i t
b o a rd has fine lead wires (jumper wires) and
glass-made parts (diode) on its substrate.
So if a circuit board is roughly handled, such
lead wires and parts will be easily broken or
damaged by bending or shock.

5 . When soldering the lead wires of any new

part, be sure to polish them using an emery
paper or the like before solding them.
Since the lead wires of any new part are
c o v e red with an oxide film, solder cannot
a d h e re to the lead wires if not polished.

6 . When soldering any part, care should be

e x e rcised not to apply any high-wattage
soldering iron to the part for a long time.
Some parts are of so low a heat re s i s t a n c e
that they may be broken or have the
p roperties changed if a soldering iron is so
applied (Otherwise, the pattern may
possibly be separated and raised).

7. The heat of the soldering iron should be
t r a n s f e red to the entire object to be soldere d .
If the solder pieces are not well fused due to
i n s u fficient transfer of the heat from the
soldering iron, no satisfactory electrical
continuity can be assured even if the
s o l d e red objects appear well connected to
each other.

8 . The solder used should be limited to a

minimum. If excessive solder is used, it will
cause inter-pattern contact, which may
cause malfunction of the circ u i t .

5-4-2 Procedure

The parts should be replaced in the following pro c e d u re .

Check for any faulty part.

Detach the faulty part.

Replace it with a new part.

Check the operation of the new part.

The repair is completed.

Samsung Electronics

5-13

Troubleshooting

5-4-3 Detailed Procedure

No.

Pull out the power plug from the

1

AC terminal and confirm the fuse
on the PCB assembly

Turn the power on.

2

If lamp blinks trouble is not
related to the items 1 through 4
on the right.

Set TURBO operating mode when

3

RMC switch pushed after a delay
of 3 minutes.
(A-unit and B-unit)

Malfunction

Checking point (symptoms)

1. Is the broken?

Voltage check

1. AC voltage at both end of transformer Primary?
198 - 264V~

2. AC voltage at both end of transformer secondary?

14- 18Vac

3. DC voltage at OUT and GND of IC01

(KA7812)? 12VDC

4. DC voltage at OUT and GND of IC02? 5VDC

5. DC voltage at Q201 Base and GND change?

squarewave

Voltage check

1. Voltage of relay (RY71, 72, 73) coil Voltage at
pin#13, 14, 15 of IC07 : 12VDC

Causes

1. Voltage over

2. Indoor unit fan motor short-circuit.

1. Irregular power code or power fuse,
or poor wiring.

2. Transformer is faulty.

3. Power circuit is faulty.

4. Power circuit is faulty.

5. Q201 is faulty.

D101~D104 (IN4007)

1. Relay(RY 71) coil is open.

IC6(KID65003A) is faulty.

Set operating mode when RMC

4

switch pushed.

1. TURBO mode

Set operating mode when

5

RMC switch pushed.

1. [FAN] mode

2. Fan speed [Hi]

3. Continuously operation

2. Voltage at RY72 No 3 and RY71 No 3 ,
RY72 No 3 and RY73 No 3 , 198- 264V~

1. Compressor does not operate.

1. Voltage at 3 5 both ends of CN73 :

above 180V~

2. Indoor unit fan motor does not operate.

2. Relay contactor is faulty or Relay is
faulty

1. Temperature of Heat exchange

is lower.

2. PCB is faulty.

3. Room sensor or Heat exchanger

temperature sensor is faulty

1. Indoor unit fan motor is faulty.

2. Poor connection of indoor fan motor

and connector of RPM sensing (CN43)

5-14

Samsung Electronics

5-5 Fault Diagnosis of Major Parts

Parts

Temp.Sensor

Heat ex. Sensor

Indoor Fan Motor

Diagnosis
Measure resistance with a tester.
Normal 8KΩ~27KΩ at ambient temperature (+0°C ~ +30°C)
Abnormal ∞, O Ω … open or short
Measure resistance between terminals (CN73) with a tester
Normal At ambient temperature (10°C ~ 30°C)

between Resistance

Red, Yellow 190±10Ω

Red, Blue 170±10Ω

Abnormal
Measure the voltage between ground and signal wire of the fan motor (CN43)
Normal

between Voltage

Gray, Orange 05V~4.5V

Outdoor Fan Motor

Stepping Motor

(UP/DOWN swing motor)

Yellow, Orange 5V

Abnormal Abnormal if voltage does not change from 0V to 5V.
Normal At ambient temperature (10°C ~ 30°C)

between Resistance Remark

Red, Yellow 143±10Ω Low

Blue, Red 58±10Ω High

Abnormal ∞, O Ω … open or short
Measure resistance between red wire and each terminal.
Normal Approx. 380Ω at ambient temperature (20°C ~30°C)
Abnormal ∞, O Ω … open or short

Samsung Electronics

5-15

6. Exploded Views and Parts List

6-1 Indoor Unit

6-1

Samsung Electronics

■

Parts List

Exploded Views and Parts List

No.

1

1-1

2
3
4
5
6

7

7-1

7-2

8

9

CODE NO

DB64-10140A
DB64-70073A
DB63-30131A
DB74-10091A
DB63-10472B

DB92-70075E
DB93-10560B
DB93-10561B
DB94-10088A
DB95-20138A
DB66-30153A
DB75-40081B
DB75-40081A
DB67-30058C

Description Specification

GRILLE AIR INLET

PANEL CENTER DISPLAY

GUARD AIR FILTER

ASS´Y FILTER

CLEANER/CARBON

COVER TERMINAL

ASS´Y FRONT PANEL

ASS´Y PCB DISPLAY
ASS´Y PCB DISPLAY

ASS´Y TRAY DRAIN

ASS´Y STEP MOTOR U/D

BLADE-H

ASS´Y EVAP

”

SPACER EVAP

ABS

PC
PP

HIPS
ASS´Y
ASS´Y
ASS´Y
ASS´Y

DC12V.600GR

HIPS
ASS´Y
ASS´Y

PVC

Q’TY

Remark

A D 1 8 A 1 ( B 1 ) E 0 9 A D 2 4 A 1 ( B 1 ) E 1 2 A D 1 9 A 1 ( B 1 ) E 0 7 A D 1 9 A 1 ( B 1 ) E 1 2

1
1
2

­1
1
1
1
1
1
1
1

­1

1
1
2

­1
1
1
1
1
1
1

­1
1

1
1
2

­1
1
1
1
1
1
1
1

­1

1
1
2

­1
1
1
1
1
1
1

­1
1

!

!

!

!

!

!

!

10

10-1

11
12
13
14

15
17
18
19
20
21

DB61-00011A
DB65-00005A
DB31-10078H
DB94-30141A
DB94-40017A
DB93-10585A
DB93-10630A
DB93-10586A
DB93-10630B
DB32-10008D
DB61-10151A
DB61-60093A
DB94-20030C
DB61-40247A
DB70-10618A

HOLDER MOTOR ASS´Y

ASS´Y TERMINAL BLOCK

MOTOR FAN IN
ASS´Y-C-F-FAN

ASS´Y BEARING
ASS´Y MAIN PCB
ASS´Y MAIN PCB
ASS´Y MAIN PCB
ASS´Y MAIN PCB

THERMISTOR ASS´Y

CASE-CONTROL

BODY-BUSH

ASS´Y BACK BODY

HOLDER PIPE

PLATE HANGER

ASS´Y
ASS´Y

AMPFS040WTVB

Ø95 X 619.4mm

ASS´Y
ASS´Y
ASS´Y
ASS´Y
ASS´Y
ASS´Y

ABS(94-5V)

HIPS

ASS´Y

HIPS

SGCC-M

1
1
1
1
1
1

-

-

­1
1
1
1
1
1

1
1
1
1
1

-

-

1

­1
1
1
1
1
1

1
1
1
1
1

-

1

-

­1
1
1
1
1
1

1

!
1
1

!
1
1

!

-

-

­1
1

!

1
1

!

1
1

!

1

Samsung Electronics

6-2

6-2 Outdoor Unit (UD24A1(B1)E2)

6-2-1 UD24A1(B1)E2

10(10-1~10-3)

12(12-1~12-6)

18

13(13-1

~13-1)

4

11

8-2

5(5-1)

8-2

(9-1~9-3)

15

(15-1~15-5)

9

17(17-1,16-1)

16(16-1,17-1)

6(6-1~6-2)

8(8-3)

7

6-3

13(13-1~13-5)

14

1(1-1)

Samsung Electronics

■

Parts List

Exploded Views and Parts List

No.

1

1-1

2
3
4
5

5-1

6
6-1
6-2

7

8
8-1
8-2
8-3

9
9-1
9-2
9-3

10
10-1
10-2
10-3

11

12
12-1
12-2
12-3
12-4
12-5
12-6

13
13-1
13-2

14

15
15-1
15-2
15-3
15-4
15-5

16
16-1

17
17-1

18

19

CODE NO

DB90-10163D
DB72-50520A
DB67-50067A
DB31-10083C
DB61-20094A
DB64-60134A
DB72-60053A
DB90-40120A
DB63-10433A
DB63-10434A
DB90-20207A
DB99-10165A
DB62-40101A
DB62-40099A
DB61-30510A
DB99-10166A
DB62-40034A
DB62-31965D
DB62-31966C
DB99-10167A
DB62-40034A
DB62-31965D
DB62-31966D

DB63-30027C
DB93-00030A
DB61-10199A

DB61-10200A

2501-001062

DB65-40072A

2501-000299
DB93-10621A
DB94-50041A
DB72-60099A
DB67-30083A
DB90-10616A
DB95-10062X
DB73-10004A
DB60-30028A
DB60-30018A
DB63-10165B
DB47-20001Z

DB99-10161A
DB62-40035A
DB99-10162A
DB27-10003D

DB27-10003E
DB75-30109A
DB63-30110J

Description Specification RemarkQ’TY

ASS'Y-WELD FRONT

INSUL FRONT OUT

FAN-PROPELLER

MOTOR-FAN OUT

BASE-MOTOR
CABINET-SIDE

INSUL SIDE CABI

ASS'Y-COVER VALVE

COVER-CONTROL

COVER-VALVE

ASS'Y-BASE OUT

ASS'Y-VALVE
VALVE-PACKED 1/2"
VALVE-PACKED 1/4"

BRACKET-VALVE

ASS'Y CHECK V/V, A

VALVE CHECK
TUBE CAPI (C)
TUBE CAPI (H)

ASS'Y CHECK V/V, B

VALVE CHECK
TUBE CAPI (C)
TUBE CAPI (H)
GUARD-COND

ASS'Y CONTROL OUT

CASE CONTROL OUT

CASE PCB OUT

C-OIL

TERMINAL BLOCK

C-OIL

ASS’Y PCB MAIN OUT

ASS'Y-PARTITION
INSUL PARTITION

PARTITION

ASS’Y-CABI UPPER

ASS'Y-COMP

GROMMET-ISOLATOR

NUT-WASHER

NUT-FLANGE

COVER-TERMINAL

OLP

ASS'Y 4-WAY V/V, A

4-WAY VALVE

ASS'Y 4-WAY V/V, B

SOLENOID-V/V

SOLENOID-V/V

CONDENSER

SCREEN-GUARD

SC-90073T

FOAM PU

AS+G/F20%

OSM-8065SRC

SGCC-M

SECC-P

FOAM PU + FOAM PE

ASS'Y

PP
pp

AM24A1B2

AD24A1E2

1/2”
1/4”

SC-90073T

ASS'Y

30kg/m2G

ID 1.7 x 1200

ID 1.5 x 500

ASS'Y

30kg/m2G

ID 1.7 x 1200

ID 1.5 x 500

SC-90073T
UD24A1E2

SGCC-M

P.P

30µF x 420V

8P

5µF x 450V

HEAT-PUMP

ASS'Y

FOAM PE + FOAM PU

SGCC-M

ASS’Y

48H124JV1E4

EPDM

M8

P10.8

NORYL

MRA12030-12008

ASS'Y

SAGINOMIYA

ASS'Y
SAGINOMIYA
SAGINOMIYA

ASS'Y

P.E.H 100%

1
1
1
1

!

1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1

!

1
1
2
1
1
1
1
1
1
1
2

!

6
6
2
2
2
1
2
1
1
1
1
1

Samsung Electronics

6-4

Troubleshooting

6-2-2 UD18A1(B1)E2/UD19A1(B1)E2

10(10-1~10-3)

19

9(9-1~9-3)

14(14-1)

16(16-1,17-2)

7

8-2

8-1~8-3

17(17-1,16-1, 16-2)

8-1

18

12(12-1~12-6)

13(13-1)

4

3

2

11

6

15(15-1~15-5)

6-5

1(1-1)

5(5-1)

8

Samsung Electronics

■

Parts List

Troubleshooting

No.

1

1-1

2
3
4
5

5-1

6
7

8

8-1
8-2
8-3

9

9-1
9-2

9-3

10

10-1
10-2

10-3

11
12

12-1
12-2
12-3
12-4
12-5
12-6

13

13-1

14
15

15-1
15-2
15-3
15-4
15-5

16

16-1
16-2

17

17-1
17-2

18
19

CODE NO

DB90-10153J
DB72-60034A
DB67-50063A

DB31-00001B
DB61-20008C
DB64-60130A
DB72-60035A
DB63-40168A
DB90-20211A
DB90-00018A
DB99-10171A
DB99-00001A
DB62-40095A
DB62-00026A
DB62-40094A
DB99-10172A
DB96-00020A
DB62-40034A
DB62-31965C

DB62-31965F

DB62-31966B
DB99-10173A
DB99-00002A
DB62-40034A
DB62-31965C
DB62-31965G
DB62-31966B

DB62-31966C
DB63-30025D
DB93-00031A

DB61-10199A
DB61-10200A

2501-001062
DB65-40072A

2501-001066
DB93-10621A

DB67-30071B
DB72-60034B
DB90-10613A

DB95-10065M

DB95-10062X
DB73-10004A
DB60-30028A
DB60-30018A

DB63-10165B

DB47-20002B

DB47-20001Z
DB99-10150A
DB99-00003A
DB62-40035A
DB27-10003D
DB99-10151A
DB99-00004A

DB27-10004E
DB62-40035A
DB75-30110A

DB63-30130B

Description Specification Remark

Q’TY

UD18A1(B1)E2 UD19A1(B1)E2

ASS'Y-WELD FRONT

INSUL FRONT

FAN-PROPELLER

MOTOR-FAN OUT

BASE-MOTOR

CABINET-SIDE

INSUL SIDE

ASS’Y-COVER TERMINAL

ASS'Y-BASE OUT
ASS'Y-BASE OUT

ASS’Y-VALVE

ASS'Y-VALVE
VALVE-PACKED 3/8"
VALVE-PACKED 1/2"
VALVE-PACKED 1/4"
ASS'Y CHECK V/V, A
ASS’Y TUBE CAPI A

VALVE CHECK
TUBE CAPI (C)

TUBE CAPI-A

TUBE CAPI (H)
ASS'Y CHECK V/V, B
ASS'Y CHECK V/V, B

VALVE CHECK

TUBE CAPI (C)

TUBE CAPI B
TUBE CAPI (H)
TUBE CAPI (H)

GUARD-COND

ASS'Y CONTROL OUT

CASE CONTROL OUT

CASE PCB OUT

C-OIL

TERMINAL BLOCK

C-OIL

ASS’Y-PCB MAIN OUT

PARTITION

INSUL PARTITION

ASS’Y-CABI UPPER

ASS'Y-COMP

ASS'Y-COMP

ASS'Y-COMP

GROMMET-ISOLATOR

NUT-WASHER

NUT-FLANGE

COVER-TERMINAL

OLP
OLP

OLP
ASS'Y 4-WAY V/V, A
ASS'Y 4-WAY V/V, A

4-WAY VALVE

SOLENOID-COIL
ASS'Y 4-WAY V/V, B
ASS'Y 4-WAY V/V, B

SOLENOID-V/V

4-WAY VALVE

CONDENSER
CONDENSER

SCREEN-GUARD

SC-90073J

Foam Pe + Foam Pu

AS+G/F20%

IC-9630SLJ5A

SGCC-M

SECC-P

Foam Pe + Foom Pu

ASS’Y
AD18A1E2
AD19A1E2
AD18A1E2
AD19A1E2

3/8”
1/2”

1/4”
ASS'Y
ASS'Y

30kg/m2G

ID 1.5 X 800
ID 1.42 X 900
ID 1.42 X 400

ASS'Y
ASS'Y

30kg/m2G
ID 1.5 X 800
ID 1.7 X 800

ID 1.42 X 400

ID 1.5 X 500

SC-90073T

AD18A1E2
AD19A1E2

SGCC-M

P.P

30µF X 420V

8P

2.5µF X 450V
HEAT-PUMP

SGCC-P

Foam Pe + Foam Pu

ASS’Y
44H092JW1E4
44H070JW1E2

48H124JV1E4

EPDM

M8

P10.8

NORYL

MRA12037-12007

MST24AMN-12008

MRA12030-12008

AD18A1E2

AD19A1E2
SAGINOMIYA
SAGINOMIYA

AD18A1E2

AD19A1E2
SAGINOMIYA
SAGINOMIYA

AD18A1E2

AD19A1E2

P.E.H 100%

1

1
1
1
1

1

1
1
1

­1

-

2

­2
1

­1
1

­1

1

­1
1

­1

­1
1

-

1

2
2
1
1

1

1
1
1

2

-

-

6

6
2
2

2

-

-

1

-

1

1
1

­1
1

1

­1

1
1
1
1
1
1
1
1

-

1

­1
1
1
2

­1

-

­1

-

­1
1

­1

­1
1

­1
1
2
2
1
1
1
1
1
1
2
1
1
6
6
2
2

­1
1

­1
1
1

­1
1
1

­1
1

!

!

!

Samsung Electronics

6-6

6-3 Remote Control & PCB Box

6-3-1 Remote Control

■

Parts List

No

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17

CODE NO

DB93-30071H
DB61-10144A

DB61-10145A
DB64-20054A
DB63-10477A
DB74-10084A

DB73-20110B
DB64-40167A

DB64-40166B
DB68-10775A

DB68-10777A

PH-M2
DB67-60061A
DB67-60062A
DB67-60063A

90 250

DB93-40179B

DB61-40243A

Description

ASS’Y CODE

CASE UP

CASE LOW

DOOR REMOCON

COVER BATTERY

FILTER REMOCON

RUBBER REMOCON

INLAY LCD
INLAY REMOCON
LABEL REMOCON

LABEL DOOR

SCREW TAP
SPRING BATTERY
SPRING BATTERY
SPRING BATTERY

PE BAG

ASS’Y PCB REMOCON

HOLDER REMOCON

Specification

ABS
ABS
ABS
ABS

PC

SILICON

PC

PC
ART 90
ART 90

PH-M2
SUS 304
SUS 304
SUS 304

90 250

ABS

Q’TY

1
1
1
1
1
1
1
1
1
1
6
1
1
1
1
1
1

Remark

6-7

Samsung Electronics

6-3-2 PCB Box

Exploded Views and Parts List

2-5

2-6

■

Parts List

No

1

CODE NO

DB61-10151A

2-4

2-3

Description

CASE-CONTROL

1

Specification

ABS(94-5V)

2-2

2

2-1

Q’TY

AD24A1(B1)E12 AD18A1(B1)E09 AD19A1(B1)E07 AD19A1(B1)E12

1

1

1

3

Remark

1

2

DB93-10585A

ASS'Y MAIN PCB
DB93-10630A
DB93-10586A
DB93-10630B

2-1

DB09-10149A

2-2

DB32-10008D

2-3

DE26-20154A

2-4

2306-000294

2-5

3501-001058

2-6

DE32-10037A

3

DB93-10560B
DB93-10561B

IC - MCU

THERMISTOR ASS'Y

TRANS-POWER

C-FILM

POWER-RELAY

FUSE

ASS'Y PCB DISPLAY

ASS’Y PCB DISPLAY

Samsung Electronics

ASS’Y
“
“
“

“
“

“
MB89635R-466
103AT
AC230V DC17V 300mA
CFS 99N 450VAC 155K
DI1U DC12V
250V 3.15A
A1-GRILLE

B1-GRILLE

-

-

1

­1
1
1
1
1
1
1
1

1

-

-

­1
1
1
1
1
1
1
1

-

1

-

­1
1
1
1
1
1
1
1

-

-

­1
1
1
1
1
1
1
1
1

6-8

7. PCB Diagrams

7-1 Main PCB

7-1

Samsung Electronics

■

PARTLIST

PCB Diagrams

No DESIGN LOCATION

1

F701

2

F701

3

IC01

4

IC01

5

IC01

6

IC02

7

CR71

8

FT71

9

R903

10

R203

11

R202,301,409,501~509,513,601,604,606,901

12

R405,407

13

R201,204,401,402,404,603,605

14

R607

15

R602

16

R403

17

R910,912

18

R406,408

19

D101~105

20

SS71

21

BZ61

22

TN71

23

TN71

24

C202,402

25

C301,401

26

C102,104,201,203,403,404,501,502,901

27

C103

28

C105

29

C101

30

C601

31

IC04

32

IC03

33

X501

34

IC05,IC06,IC07

35

Q201,401,601,602

36

Q603

37

Q902, Q901

38

SW91

39

CN73

40

CN43

41

CN41

42

CN61

43

CN92

44

TB71

45

RY71

46

J1~J29,HR01,03,LR01

47

C701

48

C702

49

R904~906

50

CM71

51

RY72

CODE NO

DE32-10037A
DE47-40024A
DE13-20008A
DE62-30032A
DE60-10100A
DE13-10016A

2306-000294

2001-000776
2001-000588
2001-000065
2001-000036
2001-000042
2001-000855
2001-001088
2001-000890

A1000-0244
2004-001137
0402-000137

B4190-0016
DE30-20016A
DE26-20154A

DE60-60012A

2202-000783
2202-000796
2202-000780
2401-000710
2401-001397
2401-000180

2401-001573
DE09-10149A
DE13-20009A

2802-000103
DE13-20024A

A4050-0168
0501-000292
0504-000144
3404-001013
3711-000262
3711-000879
3711-000940

3711-000999
3711-001154

DE59-30001A

3501-001058

DE39-60001A

3501-000399

Description

FUSE
HOLDER-FUSE
IC-VOLT REGU

HEAT-SINK
SCREW-PH

IC-VOLT REGU

C-FILM

FILTER NOISE

R-CARBON
R-CARBON
R-CARBON
R-CARBON
R-CARBON
R-CARBON
R-CARBON
R-CARBON
R-CARBON

R-METAL FILM

DIODE-RECT

THYRISTOR

BUZZER

TRANS L.V
PIN EYELET
C-CERAMIC
C-CERAMIC
C-CERAMIC

C-ELEC
C-ELEC
C-ELEC
C-ELEC

IC-MCU

IC

RSONATOR-CERAMIC

IC-DRIVE
TR-GENERAL
TRANSISTOR
TRANSISTOR

SWITCH-TACT
CONNECTOR WAFER
CONNECTOR WAFER
CONNECTOR WAFER
CONNECTOR WAFER
CONNECTOR WAFER
CONNECTOR-TERMINAL

RELAY

WIRE SO COPER

C-MYLAR
C-MYLAR

R-CARBON

CONNECTOR WAFER

RELAY

Specification

FST 250V 3.15A

FH-51H 7.5A

KA7812A

AL H25

M3*6 FeFzY

KA7805A

CQS 450V 1.5

LSA05230P

RD 1/2 T(S) 471-J

RD 1/4 TP 332-J
RD 1/4 TP 103-J
RD 1/4 TP 331-J
RD 1/4 TP 102-J
RD 1/4 TP 560-J

RD 1/2 T(S) 102-J

RD 1/4 TP 682-J
RD 1/8 TP 332-J
RD 1/4 TP 682-F

1N4007

G3MB-202PL

CBE 2220BA STICK

230V DC17V 300mA

OD2.5 L3.0
CA OA 50V 103Z
CA OA 50V 102Z
CA OA 50V 104Z
CE04 25V 222-M

CE 04 25V 471-M

CE 04 35V 102-M

47UF/50V

MB89635R-466

KA7533Z

10MHz

KID65003AP(KA2657)

KSC945Y

A708Y
R2002

KPT-1115V

YW396-05AV WHT

SMW250-03 BLU

SMW250-04(WHT)

SMW250-05 WHT
SMW250-09 WHT

250TAP, 1PIN

DI1U DC12V

PI0.6 SN T 52MM

224K
104K

RD 1/2T(S) 621-J

YW396-03AV(BLK)

JQ1a-12V

Q’TY

1
1
1
1
1
1
1
1
1
1

17

2
7
1
1
1
2
2
5
1
1
1
5
2
2
9
1
1
1
1
1
1
1
3
4
1
2
1
1
1
1
1
1
1
1

32

1
1
3
1
1

Samsung Electronics

7-2

7-2 ASS’Y DISPLAY & Module

• DB93-10560B / DB93-10561B

• PCB-DISPLAY : DB41-10204A

■

PARTLIST

No

1
2
3
4
5

6

7
8

9
10
11
12
13
14
15
16

Description

PCB-DISPLAY

LED-LAMP
LED-LAMP
LED-LAMP
LED-LAMP

MODULE REMOCON

C-CERAMIC

R-CARBON

CONNECTOR WAFER

C-CERAMIC

DIODE SWITCHING

C/W DIS & MODULE

CASE-CENTER PCB UP

CASE-CENTER PCB LOW

SEAL DISPLAY UPP

SEAL CASE DISPLAY

CODE-NO

DB41-10204B

0601-001333
0601-001059
0601-001060
0601-001196

DB32-50027A

2202-000780
2001-000515

2201-000283

0401-000005
DB39-20346A
DB61-10191A
DB63-10494A
DB72-10233A

DB72-10220F

Specification

FR-1 T1.6 W20 L170
LTL-30EHJ(ORG/GRN)
SY5511(YEL)
SM5511(GRN)
SO5511(ORG)
PNA4612MøøMD
CA OA 50V 104Z
RD 1/8TP 221-J
YWLA200-09P
CA OA 50V 102Z
1N4148
UL1007 AWG#26/9
PC,BLUE
ABS,BLK
FOAM-PE,BLK
30 FOAM-PE

Q’TY

1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1

7-3

Samsung Electronics

8. Wiring Diagrams

8-1 Indoor Unit

•AD24A1(B1)E12/AD18A1(B1)E09/AD19A1(B1)E07/AD19A1(B1)E12

Samsung Electronics

8-1

8-2 Outdoor Unit [UD24A1(B1)E2/UD18A1(B1)E2/UD19A1(B1)E2]

8-2

Samsung Electronics

U P D A TE LOG SHEET

Application date Page Part# Note(Cause & Solution) S/Bulletin#

Use this page to keep any special servicing information. (Service Bulletin, etc.)
If only parts number changes, Just change parts number directly on parts list.
And if you need more information, please see the service bulletin

Copyright

®œ 1995 by Samsung Electronics Co., Ltd.
All rights reserved.

This manual may not, in whole or in part, be

copied, photocopied, reproduced, translated,

or
converted to any electronic or machine read­able
from without prior written permission of
Samsung Electronics Co., Ltd.

SyncMaster 17GLi/CMG7387L Service
Manual

First edition June 1995.

Tr a d e m a r k s

Samsung is a registered trademark and
SyncMaster 17GLi/CMG7387L and
MacMaster
Cable Adapter are trademark of Samsung
Electronics Co., Ltd.

Macintosh, Centris, Quadra, Duo Dock, and
Power Macintosh are trademark of Apple
computer, Inc.

All other trademarks are the property of their
respective owners.

9. Schematic Diagrams

9-1 Indoor Unit

Samsung Electronics

9-1

9-2 Remote Control

Samsung Electronics

9-2