Samsung AD18A1(B1)E09 Service Manual Download Page 50 | Manualshive

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Samsung Electronics

7-1

7. PCB Diagrams

7-1 Main PCB

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Summary of Contents for AD18A1(B1)E09

Page 1: ...uctions and Installation 4 Disassembly and Reassembly 5 Troubleshooting 6 Exploded Views and Parts List 7 PCB Diagrams 8 Wiring Diagrams 9 Schematic Diagrams ROOM AIR CONDITIONER INDOOR UNIT AD24A1 B1 E12 AD18A1 B1 E09 AD19A1 B1 E07 AD19A1 B1 E12 OUTDOOR UNIT UD24A1 B1 E2 UD18A1 B1 E2 UD19A1 B1 E2 ...

Page 2: ... Samsung Electronics Co Ltd NOV 1998 Printed in Korea Code No DB81 10179A 1 ...

Page 3: ...ng 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 resis tance 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 R...

Page 4: ...1 2 Samsung Electronics MEMO ...

Page 5: ... 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 fix ing 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 l...

Page 6: ...arate 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 1 Do above 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 TRAN...

Page 7: ...he left screws of the heat exchanger 1 Do 1 2 3 4 5 above 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 Lifting the heat exchanger up a little to push the up side for separation from the indoor unit ...

Page 8: ...rol 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 UD18A1 B1 E2 UD19A1 B1 E2 ...

Page 9: ...el the timer on and timer off Use this button to reserve the timer on and timer off Set up the time that operation stop Set up the time that operation start Each time you press this button FAN SPEED is changed in the following order Adjusts air flow vertically each time you press this button Use this button for sleep operation The SLEEP mode can be selected at COOL and HEAT mode Set up the reserve...

Page 10: ...E Has 3 states each determined by room temperature The unit operates in DRY mode Compressor ON OFF Time is controlled compulsorily can not set up the fan speed always breeze Protective function Low temperature release Prevention against freeze 5 TURBO MODE This mode is available in AUTO COOL HEAT DRY FAN MODE When this button is pressed at first the air conditioner is operated powerful state for 3...

Page 11: ...on or cancel the timer off quickly When OFF timer button is pressed at oper ating state LCD displays the polling state sequentially The LCD also displays the time remaining 11 24 Hour ON OFF Real Setting Timer The air conditioner is turned ON at a specified time using OFF TIMER The air Conditioner is turned OFF at a specified time using ON TIMER Only timer LED lights on OFF TIMER Both timer and op...

Page 12: ... 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 traffic 6 Make sure that yo...

Page 13: ... piping hole sloped slightly Piping Liquid 1 4 Clamper tube Piping Gas 1 2 3 8 Installation plate Installation tube Pipe connection Vinyl tape Screw Putty Drain hose Piping may be laid to the rear left right or down Right Rear Down Rear Left 3 1 1 2 3 4 5 6 7 8 9 10 2 Remote control Remote control holder Operating Instructions and Installation A UNIT B UNIT Outdoor unit check point 10 ...

Page 14: ...chor 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 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 oppo site On delivery the indoor unit ...

Page 15: ...further details 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 Indoor unit Outdoor unit 1 L 2 N E Earth 3 COM The outdoor unit is powered from the indoor unit via the assembly cable ...

Page 16: ... 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 Ensure the wire number of the indoo...

Page 17: ...ing terminal can be found on the outdoor unit as illustrated 2 Use of a grounding electrode Specifications of grounding electrode 1 When an existing grounding terminal is avil able Grounding wire of ø1 6mm or larger solid wire or 2mm2 or larger standard wire Terminal used exclusively for grounding Carbon plastic Steel core PVC insulated wire 2mm2 x3 5m green Terminal M4 Grounding resistance less t...

Page 18: ...g a pipe cutter Tools used 2 Remove burrs at the tip of the pipe cut Caution Burrs not removed may result in leakage of gas 3 Insert a flare nut into the pipe and modifty flare Unproper flaring Outer diameter A mm ø6 35mm 1 3 ø9 52mm 1 8 ø12 7mm 2 0 Oblique 90 Raughness Burr Pipe Reamer Inclined Surface damaged Cracked Uneven thickness D A ...

Page 19: ... closed position 4 Check for gas leakage Check the flare connections for gas leakage 7 Mount the valve stem nuts to the 2 way and 3 way valve And mount the service port cap to 3 way valve 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 thre...

Page 20: ... will be damaged 5 Stop operation of the air conditioner 6 Disconnect the charge hose of manifold gauge 7 Close the cap of each 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 Piping length and the height Additional refrigerant charge R22 g When length of the pipe is over 5u by the uni...

Page 21: ... location 2 Way Valve Cap 3 Way Valve Refer to this procedure when the unit is relocated 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 th...

Page 22: ...ltage Frequency 240V 50Hz In case of 2Unit Capacity Current multiplied by 2 13000 15 14 13 12000 11000 Cooling Capacity Air Outlet Temp Outdoor Temperature DB WB 21 15 21 19 35 24 43 26 7 7 6 5 4 6 5 4 Current Low Pressure Outdoor Temperature DB WB 21 15 21 19 35 24 43 26 Cooling Capacity Air Outlet Temperature Current Low Pressure Operating Instructions and Installation ...

Page 23: ...t Capacity Current multiplied by 2 14000 12000 13000 44 42 40 38 36 34 32 30 11000 10000 9000 8000 7000 Heating Capacity Air Outlet Temp Outdoor Temperature DB WB 7 6 2 1 5 6 7 22 17 12 7 6 5 4 Current Low Pressure Outdoor Temperature DB WB Heating Capacity Air Outlet Temperature Current Low Pressure 7 6 2 1 5 6 Operating Instructions and Installation ...

Page 24: ...ondition Indoor Unit DB WB 27 19 Voltage Frequency 240V 50Hz 10000 Cooling Capacity Outdoor Temperature DB WB 21 15 35 24 43 26 Air Outlet Temp 7000 8000 9000 15 14 13 12 11 10 Cooling Capacity Low Pressure 10000 Outdoor Temperature DB WB 21 15 35 24 43 26 7000 8000 9000 7 8 4 3 5 6 Cooling Capacity Air Outlet Temperature Cooling Capacity Low Pressure ...

Page 25: ... Unit DB WB 20 15 Voltage Frequency 240V 50Hz 10500 Heating Capacity Outdoor Temperature DB WB 7 6 2 1 Air Outlet Temp 7500 8500 9500 44 43 42 41 40 39 38 37 36 35 34 Heating Capacity High Pressure 10500 Outdoor Temperature DB WB 7 6 2 1 7500 8500 9500 24 23 22 21 20 19 18 17 16 15 14 Heating Capacity Air Outlet Temperature Heating Capacity High Pressure ...

Page 26: ...3 18 Samsung Electronics MEMO ...

Page 27: ...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...

Page 28: ...er 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 Result If all of three units display lamps are flickering the connection wires and the room option connections are good 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 o...

Page 29: ...ber display A unit Communication unit number display B unit Communication unit number display C unit In case of triple split multi air conditioner REMARK Be sure to check after applying the power to the outdoor unit Be sure to check during the test operation Display of power application Display 4 minutes after the COMP is on Normal operation Unit A B and C are changed every one second The communic...

Page 30: ... 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 difference between the present temperature of indoor heat exchanger and the temperature 4 minutes later if the temperature difference is over 5 C the connection is good or if the temperature difference is below 5 C the connection is bad 2 If the result o...

Page 31: ...sent and received Is there no problem between the connector of Ass y display PCB and the receiving module Replace of Ass y dis play PCB Is the fuse F701 250V 3 15A of PCB open Is the voltage at Socondary side of trans former of PCB TN71 AC15V AC25V Is the output voltage of voltage regulator IC KA 7812 DC 10V and 12V Is the output voltage of electrostatic voltage regulator IC KA 7805 DC 4 5 V 5 5 V...

Page 32: ...fuse F101 250V 2 A Replace the IC 02 KA7805 Check and Replace the rectifying diode of power side D101 D104 and KA 7812 After watching the display of PCB board assemble the color and shape of housing correctly as fol lows Is the display of PCB shown in the sequence of A B C Check the com munication of PCB and whether the LED 1 is continu ously flickering Are the power cord 1 L 2 N and communication...

Page 33: ...e indoor unit PCB Ass y due to the Micom defect If the power is not available indoor unit item no 5 3 1 Replace of indoor unit PCB Ass y Replace the IC 06 KID 65003 and SS71 G3MB202pl Replace Q401 Ksc 945Y Replacement of indoor unit fan motor Is the operation lamp flickering for 3 minutes and then put off Is AC 120V and higher shown across the indoor fan connector CN73 Is the type of MICOM IC 04 P...

Page 34: ...Hi or LOW operation is selected according to the temperature condition of outdoor room 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 Apply the power to the outdoor unit and ...

Page 35: ...ower cord and plug in again in approx 5 seconds Is operating lamp blinking Does operation start when swing button of the remote con trol unit pushed Voltage at pin 33 36 of micom ICO4 change Squarewave Volatge at pin 13 14 15 16 of IC05 KID65003 change Squarewave UP DOWN louver motor is faulty Driver IC05 KID65003 is faulty Micom IC04 is faulty Normal Check as in the procedure No Power parts Refer...

Page 36: ...lty Receiver module is faulty Q601 C4375Y or Q602 C1623Y is faulty IR LED CL 1L5EU is faulty sound heard from the indoor unit when ON OFF button on the remote control unit pushed Voltage of battery less than 2 5V Remote Control Unit LCD display status of REMOCON normal Voltage at PIN 30 of Remocon Micom change Voltage at collecter of Q601 or Q602 change Voltage at pin 26 of micom IC04 change INDOO...

Page 37: ...ling put the 4 way valve off immediately in case of B and C room 4 The changeover of cooling to heating it is on after 170 seconds delay 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 Normal Keep 4 way valve off Normal Defect of RY 76 RY 77 contact and coil Replace the Relay Defect of IC 06 IC 07 output Replace D...

Page 38: ...p 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 73 3 Apply the outdoor power and operate the indoor unit A B C in the cooling mode Normal comp A B off Keep Comp A B off Refer to the power measuring terminal Normal Defect of comp A B and running condenser Replace Defect of Ry 72 73 Comp B and Ry 71 comp A con tact and coil Replace Defect of IC 06 output Rep...

Page 39: ...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 covered with an oxide film solder cannot adhere to the lead wires if not polished 6 When soldering...

Page 40: ... 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 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 Causes 1 Voltage over 2 Indoor unit f...

Page 41: ...ent temperature 10 C 30 C Abnormal Measure the voltage between ground and signal wire of the fan motor CN43 Normal Abnormal Abnormal if voltage does not change from 0V to 5V Normal At ambient temperature 10 C 30 C 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 between Resistance Red Yel...

Page 42: ...Samsung Electronics 6 1 6 Exploded Views and Parts List 6 1 Indoor Unit ...

Page 43: ...PCB DISPLAY ASS Y PCB DISPLAY ASS Y TRAY DRAIN ASS Y STEP MOTOR U D BLADE H ASS Y EVAP SPACER EVAP 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 ABS PC PP CLEANER CARBON HIPS ASS Y ASS Y ASS Y ASS Y DC12V 600GR HIPS ASS Y AS...

Page 44: ...ectronics 6 3 6 2 Outdoor Unit UD24A1 B1 E2 6 2 1 UD24A1 B1 E2 1 1 1 7 14 4 11 18 8 2 8 2 9 9 1 9 3 10 10 1 10 3 13 13 1 13 5 8 8 3 6 6 1 6 2 16 16 1 17 1 17 17 1 16 1 15 15 1 15 5 12 12 1 12 6 13 13 1 13 1 5 5 1 ...

Page 45: ... INSUL SIDE CABI ASS Y COVERVALVE 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...

Page 46: ... Electronics 6 5 Troubleshooting 6 2 2 UD18A1 B1 E2 UD19A1 B1 E2 19 10 10 1 10 3 9 9 1 9 3 17 17 1 16 1 16 2 8 1 8 3 8 1 8 2 16 16 1 17 2 18 4 3 11 7 2 1 1 1 6 8 5 5 1 14 14 1 13 13 1 12 12 1 12 6 15 15 1 15 5 ...

Page 47: ...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...

Page 48: ...77A 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...

Page 49: ...DE32 10037A DB93 10560B DB93 10561B Description CASE CONTROL ASS Y MAIN PCB IC MCU THERMISTOR ASS Y TRANS POWER C FILM POWER RELAY FUSE ASS Y PCB DISPLAY ASS Y PCB DISPLAY Specification ABS 94 5V ASS Y MB89635R 466 103AT AC230V DC17V 300mA CFS 99N 450VAC 155K DI1U DC12V 250V 3 15A A1 GRILLE B1 GRILLE Q TY AD24A1 B1 E12 AD18A1 B1 E09 AD19A1 B1 E07 AD19A1 B1 E12 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...

Page 50: ...Samsung Electronics 7 1 7 PCB Diagrams 7 1 Main PCB ...

Page 51: ...A 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 TRANSISTO...

Page 52: ... 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 BL...

Page 53: ...Samsung Electronics 8 1 8 Wiring Diagrams 8 1 Indoor Unit AD24A1 B1 E12 AD18A1 B1 E09 AD19A1 B1 E07 AD19A1 B1 E12 ...

Page 54: ...Samsung Electronics 8 2 8 2 Outdoor Unit UD24A1 B1 E2 UD18A1 B1 E2 UD19A1 B1 E2 ...

Page 55: ...s manual may not in whole or in part be copied photocopied reproduced translated or converted to any electronic or machine read able from without prior written permission of Samsung Electronics Co Ltd SyncMaster 17GLi CMG7387L Service Manual First edition June 1995 Trademarks Samsung is a registered trademark and SyncMaster 17GLi CMG7387L and MacMaster Cable Adapter are trademark of Samsung Electr...

Page 56: ...Samsung Electronics 9 1 9 Schematic Diagrams 9 1 Indoor Unit ...

Page 57: ...9 2 Remote Control Samsung Electronics 9 2 ...

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