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Summary of Contents for Samsung NP940XHA
- Page 1 REPAIR GUIDE NP940XHA NP944XHA English. 02/2025. Rev.1.0 www.samsung.com...
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Page 2: Table Of Contents
Table of Contents Usage Notices Precautions for Repair ESD (Electrostatic Discharge) Precautions Instructional Icons Software Update Samsung Device Care Windows recovery feature Q&A User Test Samsung PC Diagnostics Exploded View and Parts List Exploded View Parts List Disassembly and Assembly... - Page 3 Table of Contents Battery Disassembly 23 Reassembly 24 Main to Sub Cable 24 Disassembly 25 Reassembly 26 Wi-Fi Antenna and Cable 26 Disassembly Reassembly Disassembly 38 Reassembly 39 Fan 39 Disassembly Reassembly 42 Main PBA and Sub PBA 42 Disassembly 44 Reassembly 46 Display 46 Disassembly...
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Page 4: Usage Notices
Precautions for Repair Samsung is not liable for any damage or defect determined to be caused by repair by a non-authorised carrier, self repair or non-professional repair of the device. Samsung... -
Page 5: Esd (Electrostatic Discharge) Precautions
During assembly, check if there are any abnormalities before reattaching the Case • rear, and be careful not to damage the battery by hitting or denting it. If the battery is damaged, visit a Samsung Service Centre. Before repairing your device, make sure its battery is fully discharged. •... -
Page 6: Software Update
Backing up and restoring data Select the Start button ( ) → All apps → Samsung Device Care. Select Backup and restore → Back up now. To restore your computer, select Restore of the backup image you want to restore. -
Page 7: Windows Recovery Feature
The computer has an additional partition for restoring data or saving backup files (only for models with the Samsung Device Care app). This partition is called a Recovery Area and it includes a recovery image comprised of the operating system and apps. - Page 8 When recording protect mode is activated, the camera and microphone will not work. Select the Start button ( ) → All apps → Samsung Settings → Security and privacy and select the Block microphone and Block camera switch to set it Off.
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Page 9: User Test
This app provides the diagnostic features to help you to quickly test the hardware components of Samsung PCs and easily check hardware issues. Your PC must run the default OS which is provided by Samsung PC. • Images and features may differ depending on the model and the app version. - Page 10 User Test Follow the on-screen instructions to proceed with the test. Some parts of test run automatically but some parts require your interaction. • The test screen and its method may vary depending on the diagnostic items. • There may be a problem with the system if you force stop the test while the test •...
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Page 11: Exploded View And Parts List
Exploded View and Parts List Exploded View and Parts List Exploded View... -
Page 12: Parts List
Exploded View and Parts List Parts List Number Name B0001 Case Rear B0009 Rubber Up B0010 Rubber Down B2009 Bracket Power Key I0005 I0009 Battery K9000 Display M0008 Sub PBA M3000 FAN-L M3004 FAN-R M3005 Heatsink M4004 Main to Sub Cable T0001 Case Front T0101... -
Page 13: Disassembly And Assembly
Disassembly and Assembly Disassembly and Assembly Tools for Disassembly and Assembly When repairing computers, you absolutely must wear protective equipment for your safety. Tool & Part Code Image Description Prevents accidents during repair Safety Goggles (protective equipment) Safety Gloves (ESD Prevents accidents during repair safe, cut-resistant) (protective equipment) - Page 14 Disassembly and Assembly Tool & Part Code Image Description Tool for disassembling the Case rear and other parts For separable handle suction Suction Cup cups, be careful not to injure yourself as the handle can be parted during use. Tool for handling connectors, cables, and other parts Because it is possible to damage parts or components...
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Page 15: Adhesives And Materials For Assembly
Disassembly and Assembly Adhesives and Materials for Assembly The fasteners composition may vary depending on the repair parts, country, region, or carrier. Item Quantity Image Description Jig for assembling Touchpad Film the touchpad and Case front (total 3 ea) Fixing tape for assembling the touchpad and Case front... -
Page 16: Disassembly And Reassembly For Replacement
Disassembly and Assembly Disassembly and Reassembly for replacement Case Rear Disassembly Be sure to remove the Case rear while the computer is secured on a flat surface. • It is possible to damage parts or components when using sharp metal tools. •... - Page 17 Disassembly and Assembly Using a cross-head screwdriver, remove the 4 screws on the Case rear. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the computer during assembly.
- Page 18 Disassembly and Assembly After attaching the suction cup on location number 1 of the Case rear, lift the suction cup upwards while separating the Case rear with the opening tool. For separable handle suction cups, be careful not to injure yourself as the handle can be parted during use.
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Page 19: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the computer may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the computer. Align the Case rear with the Case front and hook the Case rear by pressing it according to the hooking directions. - Page 20 Disassembly and Assembly Align the 4 rubber feet with the Case rear holes and press them to assemble them. Be sure to distinguish the types of rubber feet while assembling. There are 2 different types of rubber feet between top and bottom side and it should be assembled in accordance with the right type.
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Page 21: Battery
Disassembly and Assembly Battery Disassembly Remove the Case Rear first before you begin. Using the tweezers, lift up and remove the battery connector. Be careful not to damage the near components. • Be careful not to damage the battery connector when separating it with a sharp •... - Page 22 Disassembly and Assembly Using a cross-head screwdriver, remove the 4 screws on the battery, lift up the battery, and then remove it. Be careful not to damage the battery. Be careful not to damage the near components. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the computer during assembly.
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Page 23: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the computer may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the computer. Place the battery on the Case front and fasten the 4 screws on the battery with a cross-head screwdriver. -
Page 24: Main To Sub Cable
Disassembly and Assembly Main to Sub Cable Disassembly Remove the Case Rear Battery first before you begin. Using the tweezers, lift up the connector levers of the Main to Sub cable to open it and remove the Main to Sub cable. Be careful not to damage the connector and near components when removing the connector. -
Page 25: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the computer may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the computer. Using the tweezers, open the connector levers of the main PBA and sub PBA, assemble the Main to Sub cable, and then close the connector levers. -
Page 26: Wi-Fi Antenna And Cable
Disassembly and Assembly Wi-Fi Antenna and Cable Disassembly Remove the Case Rear, Battery, and Main to Sub Cable first before you begin. Using the tweezers, hold the Wi-Fi cable connector head, pull over to 90°, and then remove the 2 Wi-Fi cables. (Main/Aux) Be careful not to damage the connector when removing it. - Page 27 Disassembly and Assembly Remove the fingerprint button tape and put it on the Case front. Using the opening tool, disconnect the fingerprint button connector and the speaker connectors. Be careful not to damage the near components. • Be careful not to damage the connector when removing it. •...
- Page 28 Disassembly and Assembly Fingerprint button Speaker Speaker Speaker...
- Page 29 Disassembly and Assembly Using the opening tool, open the lever of each connector and then remove all cables and FPCs connected to the main PBA and sub PBA using the tweezers. Be careful not to break the levers when opening up. •...
- Page 30 Disassembly and Assembly Hold the insulator handle of the display connector and lift up the display connector cable. Be careful not to damage the near components.
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Page 31: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the computer may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the computer. Hold the insulator handle of the display cable and push it to the display connector. Make sure the connector is assembled to the main PBA. - Page 32 Disassembly and Assembly Open the lever of each connector, insert each cable into its connector, and then close the lever. Make sure the connector lever and connector guide lines are arranged • horizontally so that each cable is properly positioned. The guide line of each cable should be located to the edge of its connector lever •...
- Page 33 Disassembly and Assembly Connect the fingerprint button and speaker connectors. When you connect the speaker cables, press them down to 90°. Remove the fingerprint button tape on the Case front and put it on the fingerprint button. Connect each speaker connector according to the picture below, taking note of the distinct cable colors (Yellow/White/Green/Red).
- Page 34 Disassembly and Assembly Assemble the aux antenna cable (Grey) according to the routing path of the antenna guide clips. The antenna cable should be routed to downside of the fan.
- Page 35 Disassembly and Assembly Assemble the main antenna cable (Black) according to the routing path of the antenna guide clips. The antenna cable should be routed to downside of the fan. • The main antenna cable (Black) should be routed after the aux antenna cable •...
- Page 36 Disassembly and Assembly Assemble the antenna connector cable (Main/Aux) to each connector according to the routing path of guide clips. Be careful not to damage the antenna head. • Make sure that the connection is completed after pressing the head of the •...
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Page 37: Ssd
Disassembly and Assembly Disassembly Remove the Case Rear, Battery, Main to Sub Cable, and Wi-Fi Antenna and Cable first before you begin. Using a cross-head screwdriver, remove the screw located on the SSD, and then pull the SSD horizontally out of the SSD socket to separate it. The SSD screw is shorter than other screws. -
Page 38: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the computer may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the computer. Insert the SSD module into the SSD connector and fasten the screw on the SSD with a cross-head screwdriver. -
Page 39: Fan
Disassembly and Assembly Disassembly Remove the Case Rear, Battery, Main to Sub Cable, Wi-Fi Antenna and Cable, and first before you begin. Using a cross-head screwdriver, remove the 3 screws on the left side fan, lift it up, and then remove the left side fan. Be careful not to damage the near components. - Page 40 Disassembly and Assembly Using a cross-head screwdriver, remove the 3 screws on the right side fan, lift it up, and then remove the right side fan. Be careful not to damage the near components. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the computer during assembly.
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Page 41: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the computer may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the computer. Place the fans on both the left and right sides of the Case front and fasten the 6 screws on both fans with a cross-head screwdriver. -
Page 42: Main Pba And Sub Pba
Disassembly and Assembly Main PBA and Sub PBA Disassembly Remove the Case Rear, Battery, Main to Sub Cable, Wi-Fi Antenna and Cable, SSD, first before you begin. Using a cross-head screwdriver, remove the 5 screws on the sub PBA. Lift up the sub PBA and remove it. - Page 43 Disassembly and Assembly Using a cross-head screwdriver, remove the 7 screws on the main PBA. Lift up the main PBA and remove it. Be careful not to damage the near components. Check the number of screws that have been removed, and store them carefully to make sure that no unassembled screws are left inside the computer during assembly.
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Page 44: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the computer may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the computer. Place the main PBA to the Case front in accordance with the guide poles of the Case front. - Page 45 Disassembly and Assembly Place the sub PBA to the Case front in accordance with the guide poles of the Case front. Using a cross-head screwdriver, fasten the 5 screws on the sub PBA. Check if there is no cable under the sub PBA. Reassemble the Fan, SSD, Wi-Fi Antenna and Cable,...
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Page 46: Display
Disassembly and Assembly Display Disassembly Remove the Case Rear, Battery, Main to Sub Cable, Wi-Fi Antenna and Cable, SSD, Fan, and Main PBA and Sub PBA first before you begin. Using a cross-head screwdriver, remove the 4 screws on the left and right hinges. Be careful not to damage the near components. - Page 47 Disassembly and Assembly Remove the display by lifting it from the Case front. Be careful not to damage the near components.
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Page 48: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the computer may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the computer. Prepare the display part and open the left and right hinges to maximum angle. - Page 49 Disassembly and Assembly Place the display part to the Case front as shown in the picture below and then insert both hinges into the guide holes of the Case front.
- Page 50 Disassembly and Assembly Using a cross-head screwdriver, fasten the 4 screws on the left and right hinges and close the display completely. Left Right Reassemble the Main PBA and Sub PBA, Fan, SSD, Wi-Fi Antenna and Cable, Main to Sub Cable, Battery, and Case Rear to complete assembly.
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Page 51: Fingerprint Sensor
Disassembly and Assembly Fingerprint Sensor Disassembly Remove the Case Rear, Battery, Main to Sub Cable, Wi-Fi Antenna and Cable, SSD, Fan, Main PBA and Sub PBA, and Display first before you begin. Using a cross-head screwdriver, remove the 3 screws on the fingerprint sensor bracket. - Page 52 Disassembly and Assembly Using the tweezers, remove the fingerprint sensor module from the Case front.
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Page 53: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the computer may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the computer. Align the fingerprint sensor module on the Case front. Place the fingerprint sensor bracket over the fingerprint sensor module. - Page 54 Disassembly and Assembly Using a cross-head screwdriver, fasten the 3 screws on the fingerprint sensor bracket. Reassemble the Display, Main PBA and Sub PBA, Fan, SSD, Wi-Fi Antenna and Cable, Main to Sub Cable, Battery, and Case Rear to complete assembly.
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Page 55: Speaker
Disassembly and Assembly Speaker Disassembly Remove the Case Rear, Battery, Main to Sub Cable, Wi-Fi Antenna and Cable, SSD, Fan, Main PBA and Sub PBA, Display, and Fingerprint Sensor first before you begin. Lift up the left and right speaker woofers and remove them. Be careful not to damage the near components. - Page 56 Disassembly and Assembly Using the tweezers, lift up the left and right speaker tweeters and remove them. The tweeter is assembled with the double-sided adhesive tape. Be careful not to damage the part and double-sided adhesive tape. Double-sided adhesive tapes Left Right...
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Page 57: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the computer may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the computer. Remove the blue release tape on each speaker tweeter. Place the left and right speaker tweeters in the right locations. - Page 58 Disassembly and Assembly Place the right speaker in the right location. Check if the speaker and black rubbers are located in the correct area. Rubber Rubber Place the left speaker in the right location. Check if the speaker and black rubbers are located in the correct area. Rubber Rubber Reassemble the...
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Page 59: Touchpad
Disassembly and Assembly Touchpad Disassembly Remove the Case Rear, Battery, Main to Sub Cable, Wi-Fi Antenna and Cable, SSD, Fan, Main PBA and Sub PBA, Display, Fingerprint Sensor, and Speaker first before you begin. Using the tweezers, remove the conductive tape and yellow kapton tape from the touchpad. - Page 60 Disassembly and Assembly Using the tweezers, grasp the 2 tape heads and pull them out to remove the tapes. When removing the tape with tweezers, apply a steady force to prevent it from breaking in the middle. Remove the touchpad module by pushing the opposite side of the touchpad module by hand.
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Page 61: Reassembly
Disassembly and Assembly Reassembly Leaving screws inside the computer may damage internal components, such as the battery. When assembling, be extra careful not to leave any unassembled screws inside the computer. Film jig is required to assemble the touchpad. Prepare the touchpad film jig including 3 films. - Page 62 Disassembly and Assembly Prepare the touchpad adhesive tape. Remove the deformable paper of the touchpad adhesive tape and attach it on the touchpad. Attach the touchpad adhesive tape to the touchpad following this picture with the guide line. Skip this step if you replace the touchpad part. The tape is attached to the touchpad you ordered.
- Page 63 Disassembly and Assembly Place the touchpad film jig on the top/left/right of the touchpad part of the Case front. The touchpad film jig is for making constant appropriate separation. Attach the tape to each touchpad film jig not to move.
- Page 64 Disassembly and Assembly Attach the suction cup to the touchpad. Remove the deformable paper. (coloured film)
- Page 65 Disassembly and Assembly Place the touchpad to the Case front. Assemble the bracket on the bottom of the touchpad to the 2 hooks on the Case front. Attach the touchpad in alignment with the gaps in the up, down, left, and right •...
- Page 66 Disassembly and Assembly Open the touchpad connector lever, insert the touchpad cable to the connector, and then close the lever. Attach the yellow kapton tape to the touchpad connector and attach the conductive tape between the Case front and touchpad.
- Page 67 Disassembly and Assembly Remove the touchpad film jig and tape. (3 ea)
- Page 68 Disassembly and Assembly Check the gaps (0.1-0.3 mm) in the up, down, left, and right directions. Press the touchpad and make sure the touchpad is attached well. Reassemble the Speaker, Fingerprint Sensor, Display, Main PBA and Sub PBA, Fan, SSD, Wi-Fi Antenna and Cable, Main to Sub...
- Page 69 This guide is a property of Samsung Electronics Co., Ltd. Any unauthorised use of guide can be punished under applicable international and/or domestic law. © Samsung Electronics Co., Ltd.
- Page 70 Display + TSP SSD1 CAMERA Connector SSD2 ALS Sensor TYPE C TBT RETIMER SUB BOARD PDIC FINGER PRINT TBT RETIMER EC/CHARGER/KBD/FAN KEYBOARDD KBD BACKLIT HALL IC Embedded Controller TW RIGHT SPK WF RIGHT SPK AUDIO IC HP/MIC JACK TW LIFT SPK CHARGER BATTERY WF LIFT SPK...
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