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AIR CONDITIONER
Refer to the service manual in the GSPN(see the rear cover) for the more information.
OUTDOOR UNIT
AM036TXMDCH
AM048TXMDCH
AM053TXMDCH
CONTENTS
1. Product Specifications
2. Disassembly and Reassembly
3. Troubleshooting
4. PCB Diagram
5. Wiring Diagram
6. Reference Sheet
7. Check Operation & Amount of
Refrigerant Automatically Checking
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Summary of Contents for Samsung AM036TXMDCH
- Page 1 OUTDOOR UNIT AM036TXMDCH AM048TXMDCH AM053TXMDCH AIR CONDITIONER CONTENTS 1. Product Specifications 2. Disassembly and Reassembly 3. Troubleshooting 4. PCB Diagram 5. Wiring Diagram 6. Reference Sheet 7. Check Operation & Amount of Refrigerant Automatically Checking Refer to the service manual in the GSPN(see the rear cover) for the more information.
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Page 2: Table Of Contents
3-3-26 Compressor starting/rotation error (Error Code : E461, E467) ..............49 3-3-27 Current error / PFC overload error (Error Code : E462, E484) ..............51 3-3-28 IPM over current error (Error Code : E464) ....................52 3-3-29 DC-Link voltage under/over error (Error Code : E466) ................55 3-3-30 Others ...................................57 Samsung Electronics... - Page 3 7. Check Operation & Amount of Refrigerant Automatically Checking ........65 7-1. Check Operation ............................65 7-1-1 Check Operation ..............................65 7-1-2 How to troubleshoot of the "Undetermined" ....................67 7-1-3 Automatic Commissioning Error Code ......................73 7-2. Automatic refrigerant amount detection function (Checking th amount of refrigerant) .... 74 Samsung Electronics...
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Page 4: Product Specifications
High efficient G-Fin & epoxy acrylic coating has increased heat transfer and hydrophilicity on heat exchanger. Company A Diameter Ø8 Ø7 Heat transfer surface area Pressure Evaporation 14.1% loss in heat exchanger Condensation 10.3% Internal heat transfer performance 30.8% Pressure resistance Same Company A Samsung Electronics... - Page 5 Saturated liquid refrigerant Temperature Low temperature gas refrigerant 온도 Low temperature liquid refrigerant Cross section of the Cross section of the Sub-cooled conventional inter-cooler Turbo inter-cooler liquid refrigerant *Increased heat transfer area with Shell & Tube type Turbo Inter-cooler Samsung Electronics...
- Page 6 No corrosion after 1,000 hours of test Corrosion is evident after 1,000 hours of test Company A * Tested by Samsung Longest piping length is allowed up to 175m (equivalent length) and Maximum 50m of level difference is allowed for more flexible installation.
- Page 7 • Silent mode can be adjusted in 3 levels depending on the level of noise. Highest temperature 6 hours 12 hours of silent mode Operation time 7 : 00 13 : 30 19 : 00 7 : 00 Samsung Electronics...
- Page 8 • Displaying 15 main data including high pressure of system • - Outdoor temperature • - Discharge temperature of the compressor • - Condensing temperature • Using the DIP switch on the outdoor unit PCB, you can limit the running current of the system Samsung Electronics...
- Page 9 Maximum 9 indoor unit connection Service valve is not exposed to keep the neat appearance and pipe can be connected in 4 different directions which provide flexible installation and maintenance services. Conventional * For models with 9kW or larger (Flare type connection) Samsung Electronics...
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Page 10: Product Specifications
Product Specifications 1-2. Product Specifications Type Performance 3ton 4ton 4.5ton Model AM036TXMDCH AM048TXMDCH AM053TXMDCH 1,208-230,60 1,208-230,60 1,208-230,60 Mode Cooling 38,000 48,000 53,000 Performance 42,000 54,000 61,000 Cooling* 15.0 20.3 25.6 Running Current 16.4 21.3 26.1 Cooling* 3,100 4,200 5,300 Power... - Page 11 Product Specifications Type Performance 3ton 4ton 4.5ton Model AM036TXMDCH AM048TXMDCH AM053TXMDCH 216.1 216.1 222.7 238.1 238.1 242.5 940 x 1210 x 330 940 x 1210 x 330 940 x 1210 x 330 37.01 x 47.64 x 12.99 37.01 x 47.64 x 12.99 37.01 x 47.64 x 12.99...
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Page 12: Disassembly And Reassembly
2. Disassembly and Reassembly +Screw Driver Monkey Spanner –Screw Driver Nipper Electric Motion Driver L-Wrench Samsung Electronics... - Page 13 Cabinet Front RH. (Use + Screw Driver) Cabi Top 1) Unscrew and remove 9 screws on each side of the Cabinet-Top. (Use +Screw Driver) Cabi Install Front 1) Unscrew and remove 1 screw the Cabinet- Install Front. (Use +Screw Driver) Samsung Electronics...
- Page 14 2) Unscrew and remove 4 screws in the Guard Cond. (Use + Screw Driver) Cabi Back RH 1) Pull the sensor from Cabi Back RH. 2) Unscrew and remove 4 screws on each side of the Cabinet Back RH. (Use + Screw Driver) Samsung Electronics...
- Page 15 Cabi Install Back 1) Unscrew and remove 1 screw in the Cabinet- Install Back. (Use +Screw Driver) Cabi Front LF 1) Unscrew and remove 10 screws in the Cabinet-Front LF. (Use +Screw Driver) Samsung Electronics...
- Page 16 1) Turn 2 mounting nuts as shown in the and remove it. (Use L Wrench or Monkey Spanner or Socket Wrench ) Samsung Electronics...
- Page 17 1) Separate the Fan Propeller. 2) Unscrew and remove the 8 Motor mounting screws. (Use +Screw Driver) 3) Disconnect the Motor wire from Ass’y Control Out. Bracket Motor 1) Unscrew and remove 2 mounting screws in Bracket Motor. (Use + Screw Driver) Samsung Electronics...
- Page 18 Control Out 1) Disconnect 10 Connectors from Ass’y control Out. 2) Unscrew and remove 1 mounting screw in Control Out. (Use + Screw Driver.) 3) Separate Ass’y Control Out. Samsung Electronics Samsung Electronics...
- Page 19 Compressor completely and remove the pipe with a welding flame. Ass'y Tube Suction 1) Separate 2 parts of the pipe using a welder. Ass'y Tube 4Way 1) Separate 2 parts of the pipe using a welder. Samsung Electronics Samsung Electronics...
- Page 20 1) Unscrew and remove 1 mounting nut in bottom of the cover. (Use Adjustable Wrench) 2) Separate the Compressor Felt. 3) As shown in the picture, unscrew and remove 3 mounting screws from the bottom. (Use L-Wrench or Monkey Spanner or Socket Wrench) Samsung Electronics...
- Page 21 Cond Out 1) Unscrew and remove 3 screws on each side of the Ass’y Cond Out. (Use + Screw Driver) Samsung Electronics...
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Page 22: Troubleshooting
ERROR Samsung Electronics... -
Page 23: Error Code
E-215 When two different MCU’s have same address value on the rotary switch E-216 When indoor unit is not installed to a MCU port but the switch on the port is set to On. Samsung Electronics... - Page 24 Compressor stop due to full current control or error due to low current E-464 Error due to over-current of inverter compressor E-465 V-limit error of inverter compressor E-466 Error due to over voltage /low voltage of inveter PBA E-467 Error due to unconnected wire of compressor 1 Samsung Electronics...
- Page 25 Error due to module installation of indoor unit with old version (Micom version needs to be checked) E-702 Error due to closed EEV of indoor unit (1st detection) E-703 Error due to opened EEV of indoor unit (1st detection) Auto Trial Operation incompleted (UnPrepared) Samsung Electronics...
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Page 26: How To Take Measures For Each Symptom
Check the outdoor unit PCB communication each unit and replace the indoor unit PCB line and connector then replace the PCB. after checking out lines. Samsung Electronics... -
Page 27: (Error Code : E202)
PCB then find an indoor unit that hampers communication by making a connection to each unit and replace indoor unit PCB after checking out lines. Good Defective 0.7V 0.7V Samsung Electronics... -
Page 28: Communication Error (1 Minute) Between Main And Sub Micoms Of An Outdoor Unit Or Among Outdoor Units (Error Code : E203)
Red-On, Green-On, Orange-Blinking and if the 7-segment on the outdoor unit main PBA does not display anything, change the main PBA Outdoor unit inverter PBA is normal. [7-segment on [AM✳✳✳✳XMDC✳ series Main PBA (Common)] inverter PBA LED] Samsung Electronics... -
Page 29: Mcu Branch Part Setup Error - Inconsecutive Connection With The Use Of 2 Branch Parts
Find an MCU that is composed as the following picture to carry out assembly of branch part again. After completing the re-setting, press K3 button on the button to reset or turn it off to restart. MCU BOX #0 address setup MCU PCB Branch part use setup Setting error Indoor unit address Branch A Indoor unit Samsung Electronics... -
Page 30: Mcu Branch Part Setup Error - Repeated Setup For The Same Address Over 3 Times
Find an MCU that is composed as the following picture to carry out assembly of branch part again. After completing the re-setting, press K3 button on the button to reset or turn it off to restart. Outdoor Unit PCB Quantity of Quantity of Indoor Unit Branch Indoor Unit: 3 MCU: 1 Samsung Electronics... -
Page 31: Mcu Branch Part Setup Error - Non-Installed Address Setup
Find an MCU that is composed as the following picture to carry out assembly of branch part again. After completing the re-setting, press K3 button on the button to reset or turn it off to restart. MCU BOX #0 address setup MCU PCB Branch part use setup Indoor unit address Branch Indoor unit Samsung Electronics... -
Page 32: Communication Error (1 Minute) Between Main And Sub Micoms Of An Outdoor Unit Or Among Outdoor Units(Error Code : E203)
• Example of MCU quantity setting error ex) PCB MCU setting quantity of outdoor unit = 2 / MCU installed Quantity = 3 • Example of MCU address setting error ex) Two among three of MCU address was set to 0 Samsung Electronics... -
Page 33: Mcu Branch Part Setup Error - Overlapping Indoor Unit Address Setup
After completing resetting, press the outdoor unit's K3 button to reset or turn off to restart. MCU BOX #0 address setup MCU PCB Branch part use setup Indoor unit address Branch A MCU BOX #1 address setup MCU PCB Branch part use setup Indoor unit address Branch A Samsung Electronics... -
Page 34: Mcu Branch Part Setup Error - Set As Being Used Without Connection To An Indoor Unit
Adjust the Dip switch that sets up the use of MCU branch part to ‘Not-Used'. After completing resetting, press the outdoor unit's K3 button to reset or turn off to restart. MCU BOX #1 MCU PCB Branch A Samsung Electronics... -
Page 35: Mcu Branch Part Setup Error - Connect An Indoor Unit To A Branch Part Not Being Used
Check the actual use of the branch part. If it is used, turn on the Dip switch for branch part setup. After completing resetting, press the outdoor unit's K3 button to reset or turn off to restart. MCU BOX #1 MCU address setup MCU PCB Branch part use setup Indoor unit address Branch A Indoor unit Samsung Electronics... -
Page 36: Mcu Branch Part Setup Error - Connect More Indoor Units Than What Is Actually Set Up In Mcu
• Example of MCU indoor unit setting DIP switch error ex) Indoor unit No.5 was connected to branch part C, but DIP switch No.3 (branch part C) is off. Outdoor Unit PCB Quantity of Quantity of Indoor Branch Indoor Unit: 4 MCU: 1 Samsung Electronics... -
Page 37: Mcu/Mcu Subcooler Entrance/Exit Sensor Error (Open/Short)
Separate the connector from the PCB and Temperature(°C) measure the resistance value between the 2 terminals. 12.1 18.0 27.3 43.0 Is the resistor value matching with “NOTE1” table? Replace this part as it is the defective itself. Restart operation after replace the PCB Samsung Electronics... -
Page 38: Outdoor Temperature Sensor Error(Open/Short) (Error Code : E221, E231, E251, E269, E276, E311 E321, E322, E323)
Check if everything is normal and end service on the table on the right side? Change the outdoor unit PBA Turn on the power Check if everything is normal and end service Samsung Electronics... -
Page 39: High Pressure Temperature Sensor Error (Open/Short) (Error Code : E291) Low Pressure Temperature Sensor Error (Open/Short) (Error Code : E296)
On the high/ low-pressure sensor terminals of the PCB, Refill refrigerant after vacuum is the value of voltage 5V, between pins 3 and 4? The ▼ mark is the 1st pin on the PCB. Replace high/low-pressure sensor Samsung Electronics... -
Page 40: Compressor Down By Antifreeze Control (Error Code: E403)
Check the relevant indoor fan Is the indoor EEV working properly? Check the relevant EEV Is the sensor on indoor heat exchanger shows the temperature correctly? Refer to temperature sensor error section to check for error Check for indoor air inlet blockage Samsung Electronics... -
Page 41: Comp. Down Due To A Protective Control Of High Pressure (Error Code : E407)
Do the values of S-net and Replace a high pressure sensor Manifold gauge correspond? Does indoor/outdoor EEV Check the relevant EEV operate well? Is there any clogged place Check the piping in the piping (ex. filter)? Check the amount of refrigerant Samsung Electronics... -
Page 42: Comp. Down Due To A Protective Control Of Low Pressure (Error Code : E410)
(ex. filter)? Is there any leakage in liquid pipe valve or discharge check valve of the stop-side outdoor Replace the relevant components unit when several outdoor units are in operation? Check the amount of refrigerant Samsung Electronics... -
Page 43: Comp. Down Due To A Discharge Temperature Sensor Of A Compressor (Error Code : E416)
S-net and Manifold gauge Replace a high pressure sensor correspond? Does indoor/outdoor EEV Check the relevant EEV operate well? Is there any clogged place in the piping Check the piping (ex. filter)? Check the amount of refrigerant Samsung Electronics... -
Page 44: Reverse Phase Detection Error (3Phase Outdoor Unit) (Error Code : E425)
3) If 3-phase power is normal check the phase of the power line using 3-phase tester. If it shows reverse phase, please change the current power line connection. 3-phase tester 4) After completing above, press reset key (K3) then check the power again. Samsung Electronics... -
Page 45: Esc Eev Open Error (Error Code : E438)
Check the leakage on sub-cooler Normal Change the sub-cooler Failure Check the leakage on indoor unit EEV Normal Change the indoor unit EEV Check the piping connection Connect liquid-gas pipe) Re-install the pipe Check the amount of refrigerant Samsung Electronics... -
Page 46: Refrigerant Leakage Error (Error Code : E439)
On the high-pressure sensor Replace the PCB of the PCB, is the value of voltage 5V, between pins 3 and 4? The ▼ mark is the 1st pin on the PCB. Replace the high/low-pressure sensor Samsung Electronics... -
Page 47: Prohibition Of The Compressor Operation Due To Outdoor Temperature (Error Code : E440, 441)
Is high pressure sensor correctly connected to PCB? Check and reconnect the connector Is there leakage of refrigerant in the system or charging inferior? (Check with manifold gauge) Refill or recharge the refrigerant Replace the high pressure sensor Samsung Electronics... -
Page 48: Outdoor Unit Fan Error (Error Code : E458, 475 )
-> If not, motor or PBA can get damaged * You must check the inverter PBA or fan motor and replace them only when they have problem * Do not change the outdoor unit PBA with fan motor problem Samsung Electronics... -
Page 49: Comp Down Due To Olp Temperature Control (Error Code : E463)
Do the values of S-net and Manifold gauge Replace a high pressure sensor correspond? Does indoor/outdoor EEV Check the relevant EEV operate well? Is there any clogged place Check the piping in the piping (ex. filter)? Check the amount of refrigerant Samsung Electronics... -
Page 50: Compressor Starting/Rotation Error (Error Code : E461, E467)
3. Is there any noise when the 3. Change the compressor: When loud compressor rotates? abnormal noise generates (such as metal grinding), or severe vibration Is the resistance between Change the compressor compressor body and chassis MegaΩ? Cont. Samsung Electronics... - Page 51 It is Compressor, inverter PBA related error, therefore it is not related to above PBA. * Make sure to check if service valve is open. If the service valve is close, damage could occur due to pressure difference during operation. Samsung Electronics...
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Page 52: Current Error / Pfc Overload Error (Error Code : E462, E484)
2. Remove obstacles on air outlet and secure enough space. Is the service valve completely open? Open the valve. Change the compressor. Is the compressor operating normally? Change the outdoor unit inverter PBA and check for normal operation End service Samsung Electronics... -
Page 53: Ipm Over Current Error (Error Code : E464)
1. Remove obstacles on air inlet and secure Is the indoor unit installed correctly?? enough space 2. Remove obstacles on air outlet and secure enough space Is piping/wiring between Re-install them correctly the indoor and outdoor unit done correctly? Cont. Samsung Electronics... - Page 54 Is the resistance between Change the compressor compressor body and chassis MegaΩ? Is the location and Turn off the power and change the location measured value of the of the temperature sensor or replace it temperature sensor normal? Cont. Samsung Electronics...
- Page 55 Change the PCB. XMDC series] ✳✳✳✳ ✳ * Do not change the EMI/outdoor unit main/ Indoor unit main PBA when E464 error occurs. It is Compressor, inverter PBA related error, therefore it is not related to above PBA. Samsung Electronics...
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Page 56: Dc-Link Voltage Under/Over Error (Error Code : E466)
End service outdoor unit inverter PBA normal? 2. Is there any problem on reactor coil? 2. Change the reactor Check for normal operation (such as scratch/pressed/ End service broken terminal/loose XMDC series] ✳✳✳✳ ✳ terminal) Cont. Samsung Electronics... - Page 57 2. Connect the terminal and the power cable in 2. Is power cable and terminal on the the power terminal cabinet Check for power terminal cabinet firmly normal operation End service assembled? Change the outdoor unit inverter PBA and check for normal operation End service Samsung Electronics...
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Page 58: Others
When error occurs, turn on/off the power for number of time and if same error occurs while the power is off, change the inverter Error occurs when there is no EEPROM data in the set. Check the model name and insert EEPROM for corresponding model or load the EEPROM data. Samsung Electronics... -
Page 59: Pcb Diagram
4. PCB Diagram 4-1. Outdoor Unit PCB 4-1-1 Main PCB Samsung Electronics... - Page 60 CN846 LOAD2 YW396-03AV BLK CN845 LOAD4 YW396-03AV BLU CN844 4WAY YW396-03AV YEL CN842 HOTGAS YW396-03AV RED CN101 A/C POWER YW396-03AV WHT CN304 DRED DAPC-2009-6P BLK CN300 EARTH YDW236-01 WHT CN303 COMM-INDOOR YW396-02V RED CN843 MODE SELECTOR SMW250-03 WHT Samsung Electronics...
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Page 61: Inverter Pcb : 1Phase
CN901 FAN1 YW396-06V WHT CN911 FAN2 YW396-06V WHT CN401 COMP 42819-3213 BLK REACTOR_A2 REACTOR_A2 YTR250 REACTOR_A1 REACTOR_A1 YTR250 REACTOR_B2 REACTOR_B2 YTR250 REACTOR_B1 REACTOR_B1 YTR250 AC POWER OT-048 AC POWER OT-048 CN551 DOWNLOAD YDW200-20 BLK CN351 COMM-MAIN SMW250-06 WHT Samsung Electronics... -
Page 62: Emi Pcb : 1Phase
PCB Diagram 4-1-3 EMI PCB : 1Phase Local Function Description AC POWER OT-048 EARTH EARTH YEL/GRN WIRE AC POWER BRN WIRE AC POWER SKY/BLU WIRE AC POWER OT-048 CN01 AC POWER YW396-03AV WHT Samsung Electronics... -
Page 63: Wiring Diagram
5. Wiring Diagram This Document can not be used without Samsung’s authorization. Samsung Electronics... -
Page 64: Refrigerant Cycle Diagram
Low Press. Tcout Sensor Tdis Filter Tsuc Filter Accumulator Accumulator Hot gas Hot gas Double pipe bypass out tube Main EEV temperature “A” ESC EEV Filt Filter Service V/V 9.52 AM036TXMDCH Name AM053TXMDCH AM048TXMDCH “A” Service V/V 15.88 19.05 Samsung Electronics... -
Page 65: Reference Sheet
Standard / Tropical / Module Standard / General / Non Module Standard / Tropical / Non Module High / General High / Low Temp. High / Tropical Flagship / General Temp. Flagship / Low Temp. Ultra Renewal Prime Samsung Electronics... -
Page 66: Check Operation & Amount Of Refrigerant Automatically Checking
Ex) system that module installed : If the outdoor unit is not operation by the load on the indoor and outdoor, corresponding Sub Outdoor Unit does not judge the inspection entries. (However, Indoor / Outdoor Temperature sensor and Pressure sensor judgment is available.) Samsung Electronics... - Page 67 - Oblique line marked area in the during operation of the system can be protection control. (Check operation of normal judgment can be difficult by the protection control operation.) - If out of warranty coverage and the boundary area : Check operation judgment accuracy may be reduced. Samsung Electronics...
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Page 68: How To Troubleshoot Of The "Undetermined
Is deviations of the Indoor Unit Temperature sensors, less than 10℃? Complete [Caution] - If the Outdoor Unit with a history of operation (Automatic commissioning inclusion) : Must be carried out Automatic Commissioning after 1 hour from final operation stopped. Samsung Electronics... - Page 69 Is deviations of the Indoor Unit Temperature sensors, less than 10℃? Complete [Caution] - If the Outdoor Unit with a history of operation (Automatic commissioning inclusion) : Must be carried out Automatic Commissioning after 1 hour from final operation stopped. Samsung Electronics...
- Page 70 High pressure Max/Min deviation : less than 2 Off the vauum mode Outdoor Unit Complete [Caution] - If the Outdoor Unit with a history of operation (Automatic commissioning inclusion) : Maintain the vacuum mode for more than 5 minutes. Samsung Electronics...
- Page 71 Replace Inverter PCB and CTsensor have the same value? Is refrigerant in Is Compressor current(CT) value normal? the system properly? Adjusts the refrigerant (Addition / Emitted) IIs operation current of Compressor normal? Replace Compressor Complete Samsung Electronics...
- Page 72 Temperature(℃) connector, resistance, etc.) 89.0 112.0 185.0 320.0 590.0 2000.0 2402.0 When commissioning, does maintain 3602.0 Indoor ventilation 5503.0 Thermo On status of Indoor Unit? Adjusts the refrigerant Is refrigerant in the system propely? (Addition / Emitted) Complete Samsung Electronics...
- Page 73 Confirmation and Measures Is 4Way Valve coil normal? Replace Valve coil (Wire breaking, operation impossible, etc.) Is PCB Output signal normal? Replace PCB Replace 4Way Valve Body (Retry the Automatic Commissioning : If the continuous "Undetermined" is displayed. Complete Samsung Electronics...
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Page 74: Automatic Commissioning Error Code
(VDC) phase (Ω) Division Error Code Description Remark E503 Service Valve is closed Refer to "Service Valve" Dedicated Error Code E505 High pressure sensor breakdown Refer to "High/Low pressure sensor (Module installed)" E506 Low pressure sensor breakdown Samsung Electronics... -
Page 75: Automatic Refrigerant Amount Detection Function (Checking Th Amount Of Refrigerant)
- Add 5% of the detected amount of refrigerant and restart the refrigerant amount detection operation. • Judgment not available - Check if the refrigerant amount detection operation was executed within guaranteed temperature range. Execute trial operation to check if there's any other problems on the system. Samsung Electronics... - Page 76 North & Latin America gspn3.samsungcsportal.com China china.samsungportal.com This Service Manual is a property of Samsung Electronics Co., Ltd. © Samsung Electronics Co., Ltd. December. 2019. Any unauthorized use of Manual can be punished under applicable Printed in Korea. Code No. AC-00259E_1...
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