Samsung AS12 XAX Series Service Manual Download

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Operating Instructions and Installation

Samsung Electronics

8.Schematic Diagram

8-1.PCB Circuit Description

8-1-1.Indoor Unit

8-1

Samsung

Confidential

Summary of Contents for AS12 XAX Series

Page 1: ...2UUANMID AQ12EAXSER Model AS12 XAX AQ12 SER Model Code AS12UUBEN X XAX AQ12UGEN X SER AS12 AS12UUBENXAX AQ12UGENSER AQ12 good sleep Mode Catechin Filter Silver Nano Evaporator Deodorizing Filter Anti...

Page 2: ...Troubleshooting 4 1 4 1 Setting Option Setup Method 4 1 4 2 Display Error and Check Method 4 3 4 2 1 Display Error mode 4 3 4 3 Fault Diagnosis by Symptom 4 4 4 3 1 Indoor Temperature Sensor Error Wh...

Page 3: ...B 6 2 6 1 3 Indoor Display PCB 6 3 6 2 Electrical Parts List 6 4 17 Wiring Diagram 7 1 18 Schematic Diagram 8 1 8 1 PCB Circuit Description 8 1 8 1 1 Indoor Unit 8 1 8 1 2 Display 8 2 19 Reference She...

Page 4: ...er Catechin extracted from the green tea is contained in the filter and deactivates captured bacteria and unpleasant odors Silver Nano Evaporator Deodorizing Filter Activated carbon is incorporated in...

Page 5: ...New model AS12UBAXAX AQ12EASER AS12UUBEXAX AQ12UGESER Indoor Indoor Design changed Front Display changed Outdoor chassis changed Modi ed part New contents and characteristic Basic model New model AS1...

Page 6: ...with Basic model Samsung Electronics 3 Modi ed part New contents and characteristic Basic model New model AS12UBAXAX AQ12EASER AS12TUBAXVN Indoor Indoor Design changed Front Display changed Outdoor c...

Page 7: ...0 D L mm 18 2000 18 2000 18 2000 7 0 2R 10S 605 7 0 2R 10S 605 1 44 590 9 52 1Rx18Sx648 g R22 510 R22 810 R22 650 cc 340 340 340 Capillary tube Capillary tube Capillary tube UR4B124IXEEL Rotary UR4D12...

Page 8: ...re acondicionado dom stico sistem a Split C ondizionatore d aria peram bientiad unit Separate A parelho de arcondicionado tipo Split C lim atiseurde type s par G eteilte raum klim aanlage User And Ins...

Page 9: ...00540 6 2m DB67 00274A 1 Put t y 200g DB98 10568A 1 DB39 00981A AQ12TSEAXCH AS12TUBAXVN AS12TUBAXAX AS12TUBAXAP AS12UUBEXAX AQ12TSEAXCH AS12TUBAXVN AS12TUBAXAX AS12TUBAXAP AS12UUBEXAX AQ12TSEAXCH AS12...

Page 10: ...runs When the air conditioner is turned on The Evaporator clean indicator on the indoor unit display appears and the Evaporator cleaning function runs after stopping the air conditioner operation Eva...

Page 11: ...Samsung Electronics 3 1 3 Disassembly and Reassembly Necessary Tools Item Remark SCREW DRIVER MONKEY SPANNER...

Page 12: ...nd shut off main power supply 2 Open the FRONT GRILLE and pull out from the PANEL FRONT 3 Detach COVER TERMINAL from the PANEL FRONT use Screw Driver 4 Loosen connector wire white and detach the tempe...

Page 13: ...frame 2 To detach TRAY DRAIN from the main frame pull the bottom of the TRAY DRAIN towards you 3 CONTROL IN 1 Unfasten the earth screw use Screw Driver 2 Detach the temperature sensor and Humidity se...

Page 14: ...Electronics No Parts Procedure Remark 4 PBA 1 Unfasten the screw 2 Cut the cable tie 3 Loosen the terminal block wires Total 4EA N 1 2EA 2 1EA 3 1EA Caution The terminal is the locking type So when yo...

Page 15: ...button 5 Loosen the Humidity sensor connector CN42 Option connector Caution When you separate the connector pull pressing the locking button 6 Loosen the MPI connector CN81 Option connector Caution W...

Page 16: ...aution When you separate the connector pull pressing the locking button 10 Loosen the Thermistor wire connector CN43 Caution When you take off the PBA don t touch the components Please hold the PBA bo...

Page 17: ...msung Electronics 3 7 No Parts Procedure Remark 5 EVAPORATOR 1 Unfasten the screw at the right side use Screw Driver 2 Unfasten the screw at the left side use Screw Driver 3 Detach the HOLDER PIPE 4 T...

Page 18: ...EVAP on the left side of evaporator use Screw Driver 2 unfasten the 3 points screws in the CASE CONTROL and then detach the CASE use Screw Driver 3 unfasten the screw a little use Screw Driver 4 Lift...

Page 19: ...1 Loosen 2 fixing screws and separate the Cover Terminal 2 Loosen 2 fixing screws and separate the Cover Control 3 Separate the connection wire from the Terminal Block 4 Loosen 6 fixing screws and se...

Page 20: ...screws of left and right side 2 Disassemble the inlet and outlet pipe by welding 3 Separate the Heat Exchanger Before you disassemble the pipes and Condenser be sure that there should be no refrigera...

Page 21: ...Samsung Electronics 4 1 4 1 Setting Option Setup Method 4 Troubleshooting...

Page 22: ...4 2 Samsung Electronics 4 1 Setting Option Setup Method continue...

Page 23: ...2 4 1 7 C 2 1 8 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 2 8 0 1 0 0 3 0 0 0 0 0 REMOCON MODEL SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 AQ12TSASER...

Page 24: ...USED HUMIDITY SENSOR ERROR IN TEST MODE MPI FEED BACK ERROR LED ON LED OFF LED BLINKING 4 2 Display Error and Check Method 4 2 1 Display Error mode E162 Error is displayed only in test mode So if you...

Page 25: ...alue 20 C 12 09k 30 C 8 31k 35 C 6 94k 40 C 5 83k No Is the sensor resistance value 10K 3 at the room temperature of 25 C Detach the assembly sensor from the ASS Y PCB CN43 connector and measure the s...

Page 26: ...ace SENSOR Resistance Value 20 C 12 09k 30 C 8 31k 35 C 6 94k 40 C 5 83k No Is the sensor resistance value 10K 3 at the room temperature of 25 C Detach the assembly sensor from the ASS Y PCB CN43 conn...

Page 27: ...re No power parts No Does the OPERATION lamp blink After unplugging out the power cord should be reconnected within 5 seconds Does the Solid State Relay SS71 work properly Test rod location Normal Vol...

Page 28: ...amps are blinking or E162 is displayed exchange the main PBA 4 3 5 MPI Feedback Error When E186 is displayed 1 Checklist 1 Is the mpi connector properly connected with the connector CN81 2 Troubleshoo...

Page 29: ...the display board operate Press the Power Button on the remote control unit to operate the air conditioner Unplug the power cord and plug it after 30 seconds Check the indoor unit control board does n...

Page 30: ...trol unit pushed Voltage at pin 58 61 of micom IC04 change Squarewave Voltage at pin 2 5 of CN61 motor connector change Squarewave Up Down louver motor is faulty 4 3 8 When the remote control is not r...

Page 31: ...the operating lamp twinkles at this time the above 1 3 have no relation Checking the power voltage 1 Is the BD71 input voltage AC200V AC240V Power Cord is fault Fuse open Wrong Power Cable Wiring AC...

Page 32: ...or CN72 with a tester Normal At the normal temperature 10 C 30 C Abnormal 0 Open or Short Stepping Motor Measure the resistance between the red wire and each terminal wire with a tester Normal About 3...

Page 33: ...Operating Instructions and Installation Samsung Electronics 5 Exploded Views and Parts List 5 1 Indoor Unit Exploded Views and Parts List AS12 AQ12 5 1 3 4...

Page 34: ...DB61 04578A CASE CONTROL IN ABS 5V 1 1 SA DB93 10859D ASSY PCB MAIN IN ASSY 1 SA DB93 10859A ASSY PCB MAIN IN ASSY 1 SA 4 3 DB90 06302A ASSY CASE CONTROL IN ASSY 1 1 SA DB96 11109G ASSY EVAP TOTAL ASS...

Page 35: ...IN ASSY 1 1 SA 4 1 DB61 04578A CASE CONTROL IN ABS 5V 1 1 SA 4 2 DB93 10859A ASSY PCB MAIN IN ASSY 1 1 SA 4 3 DB90 06302A ASSY CASE CONTROL IN ASSY 1 1 SA DB96 11109F ASSY EVAP TOTAL ASSY 1 SA DB96 1...

Page 36: ...A 4 DB93 10853L ASSY CONTROL IN ASSY 1 SA 4 1 DB61 04578A CASE CONTROL IN ABS 5V 1 SA 4 2 DB93 10859A ASSY PCB MAIN IN ASSY 1 SA 4 3 DB90 06302A ASSY CASE CONTROL IN ASSY 1 SA 5 DB96 11109E ASSY EVAP...

Page 37: ...LE HIPS 1 SA 4 DB93 10853D ASSY CONTROL IN ASSY 1 SA 4 1 DB61 04578A CASE CONTROL IN ABS 5V 1 SA 4 2 DB93 10859D ASSY PCB MAIN IN ASSY 1 SA 4 3 DB90 06302B ASSY CASE CONTROL IN ASSY 1 SA 5 DB96 11109G...

Page 38: ...Samsung Electronics Exploded Views and Parts List 5 2 Outdoor Unit AS12 16 1 20 2 2 17 18 13 14 15 12 21 22 23 19 11 1 11 11 3 11 5 11 4 11 2 5 6...

Page 39: ...2 1 SA 11 DB93 11375D ASSY CONTROL OUT ASSY 1 SA 11 1 2501 001235 C OIL 25uF 450VAC 1 SA 11 2 DB93 11257A ASSY CONNECTOR WIRE ASSY 1 SA 11 3 DB65 00253M TERMINAL BLOCK 2P 1 SA 11 4 2301 001910 C FILM...

Page 40: ...Samsung Electronics Exploded Views and Parts List 5 2 Outdoor Unit 5 8 18 19 21 20 11 1 16 17 13 14 15 11 12 11 3 11 5 11 4 11 2 11 6 AQ12...

Page 41: ...3X ASSY CONTROL OUT ASSY 1 1 SA 11 1 2501 001238 C OIL 40uF 450VAC 1 1 SA 11 2 DB93 11257A ASSY LEAD WIRE ASSY 1 1 SA 11 3 DB65 00230D TERMINAL BLOCK 4P 1 1 SA 11 4 2301 001910 C FILM LEAD 1 5uF 450VA...

Page 42: ...Operating Instructions and Installation Samsung Electronics 8 Schematic Diagram 8 1 PCB Circuit Description 8 1 1 Indoor Unit 8 1 Sam sung Confidential...

Page 43: ...8 1 2 Display Samsung Electronics Samsung Confidential 8 1 PCB Circuit Description 8 2...

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