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Samsung NP935QNA Repair Manual
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Samsung NP935QNA Repair Manual

Samsung NP935QNA Repair Manual

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REPAIR GUIDE
NP935QNA
English. Rev.1.0
www.samsung.com

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Summary of Contents for Samsung NP935QNA

  • Page 1 REPAIR GUIDE NP935QNA English. Rev.1.0 www.samsung.com...
  • Page 2 Instructional Icons Software Update Samsung Update Samsung Recovery Windows recovery feature Q&A User Test Samsung PC Diagnostics Exploded View and Parts List Exploded View Parts List Disassembly and Assembly Tools for Disassembly and Assembly 20 Adhesives and Materials for Assembly...
  • Page 3 Table of Contents 33 Fan Remove 34 Main & Sub PBA Remove 36 Display Remove Fingerprint Sensor Remove 39 Speaker Remove 40 Touchpad Remove 42 Fingerprint Sensor Assembly 44 Touchpad Assembly 50 Speaker Assembly Display Assembly 52 Main PBA Assembly 54 Sub PBA Assembly 56 Fan Assembly Cables Assembly...
  • Page 4 Precautions for Repair Samsung is not liable for any damage or defect determined to be caused by repair by a non-authorized carrier, self repair or non-professional repair of the device. Samsung...
  • Page 5 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 Center. Before repairing your device, make sure its battery is fully discharged. •...
  • Page 6 Software Update Software Update Samsung Update Install and update Samsung apps and drivers on the computer. You can search for or download the BIOS, drivers, and apps over the internet. Keep the computer performing better and more stably with Samsung Update.
  • Page 7 Back up important data regularly before a problem occurs with the computer. The Samsung Recovery app may not be provided in models with less than 64 GB • of storage. If you cannot access the Samsung Recovery app, refer to Windows recovery feature.
  • Page 8 You can back up the factory default system or current system to an alternate internal drive or an external storage device. Select the Start button ( ) → All apps → Samsung Recovery → Back up computer. Select a drive to save the backed up data and select Start backup.
  • Page 9 Software Update Backing up user data You can back up data files and folders. Turn on the computer and press the F4 key several times before the Samsung logo appears. Select Back up user data. Select the files or folders to back up and choose a storage device to save the data to and then select Next →...
  • Page 10 Connect the new drive to the computer with an external hard drive connector. Select the Start button ( ) → All apps → Samsung Recovery. Select Create a factory state disk or Create a disk copy.
  • Page 11 Select the Start button ( ) → Settings → System → Recovery. Select Reset PC. Select Keep my files or Remove everything. After the system is recovered, select the Start button ( ) → All apps → Samsung Update to install the required Samsung apps. Q&A When experiencing problems with the computer, try these solutions.
  • Page 12 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 camera and mic switch to set it Off.
  • Page 13 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 14 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 •...
  • Page 15 Exploded View and Parts List Exploded View and Parts List Exploded View...
  • Page 16 Exploded View and Parts List Parts List Number Name B0001 CASE REAR B0009 RUBBER FOOT UP B0010 RUBBER FOOT DOWN B0702 SIM TRAY B2001 ANTENNA-MAIN B2002 ANTENNA-AUX B2009 BRACKET POWER KEY G3006 BRACKET HEATSINK 5G I0009 BATTERY K9000 Display M0008 Sub PBA M3000 M3005...
  • Page 17 Exploded View and Parts List Number Name W3021 ANTENNA 5G AUX W3022 ANTENNA 5G Main W3023 ANTENNA MIMO1 W3024 ANTENNA MIMO2 W4000 SCREW-MACHINE W4005 SCREW-MACHINE W4032 SCREW-MACHINE W4034 SCREW-MACHINE G0013 5G Modem Module...
  • Page 18 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 19 Disassembly and Assembly Tool & Part Code Image Description Tool for handling connectors, cables, and other parts ESD Safe Tweezers Because it is possible to and Round Tip damage parts or components Metal Tweezers when using sharp tweezers, use tweezers made with plastic or rubber material.
  • Page 20 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 Touchpad Film Film to set touchpad on Case front (Total 3 ea) BA81-19474A Touchpad Adhesive for Adhesive touchpad assembly...
  • Page 21 Disassembly and Assembly Case Rear Remove Be sure to remove the Case rear while the computer is fixed on a flat surface. • It is possible to damage parts or components when using sharp metal tools. • Remove SIM tray by using the ejection pin. Using the opening tool, remove the 4 rubber feet on the Case rear.
  • Page 22 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 23 Disassembly and Assembly Battery Remove Using the tweezers, remove the battery connector. When removing the connector with sharp tools, it is possible to damage the • battery connector. Be careful not to break the connector when removing it. • Remove the 4 screws on the battery by using cross-head screwdriver and then remove the battery module.
  • Page 24 Disassembly and Assembly Remove the battery. Be careful not to break the battery pack and other parts. After you finish disassembling, refer to Battery Assembly for how to reassemble.
  • Page 25 Disassembly and Assembly Antenna Cable Remove Remove the Wi-Fi antenna cables (Main/Aux) from the main PBA. (White and Black) Be careful not to break the connector when removing it. • With the tweezers, hold the metal part of the antenna, not the cable, and lift it •...
  • Page 26 Disassembly and Assembly Remove 3 screws on the 5G module thermal plate by using a cross-head screwdriver, and then remove the 5G module thermal plate from sub PBA. 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 27 Disassembly and Assembly Remove the white antenna cable from the guide clip on the sub PBA. Be careful not to break the connector when removing it. • With the tweezers, hold the metal part of the antenna, not the cable, and lift it •...
  • Page 28 Disassembly and Assembly Remove the blue antenna cable from the 7 guide clips on the sub PBA. Be careful not to break the connector when removing it. • With the tweezers, hold the cable, and lift it vertically. • Remove the black antenna cable from the 8 guide clips on the main PBA and the sub PBA.
  • Page 29 Disassembly and Assembly Cables Remove After holding white tips of tape by using the tweezers, pull 2 tapes heads on the main PBA and the sub PBA sides. There is a fixed tape on the bottom, so be careful. Remove two fixed tape first. Remove the Main to Sub FPC.
  • Page 30 Disassembly and Assembly Open the lever of each connector (3 ea) and then remove cables. Be careful not to break the levers when opening up.
  • Page 31 Disassembly and Assembly Remove the fingerprint power button and each connector. Be careful not to break the connector when removing it.
  • Page 32 Disassembly and Assembly After you finish disassembling, refer to Cables Assembly for how to reassemble.
  • Page 33 Disassembly and Assembly Fan Remove Using a cross-head screwdriver, separate 3 screws on the fan and a screw on the heatpipe and then remove the 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.
  • Page 34 Disassembly and Assembly Main & Sub PBA Remove Use a cross-head screwdriver to remove the 6 screws located on the sub PBA. Remove the SIM card slot, and then remove the sub PBA. 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.
  • Page 35 Disassembly and Assembly Using a cross-head screwdriver, remove the 6 screws on the main PBA and remove the main PBA. 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.
  • Page 36 Disassembly and Assembly Display Remove Using a cross-head screwdriver, remove the 4 screws on the right and left hinges. 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.
  • Page 37 Disassembly and Assembly Fingerprint Sensor Remove Using a cross-head screwdriver, remove the 3 screws on the fingerprint sensor bracket. 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.
  • Page 38 Disassembly and Assembly Using the tweezers, remove the fingerprint sensor module from the Case front. After you finish disassembling, refer to Fingerprint Sensor Assembly for how to reassemble.
  • Page 39 Disassembly and Assembly Speaker Remove Remove the left and right speaker. Left Right After you finish disassembling, refer to Speaker Assembly for how to reassemble.
  • Page 40 Disassembly and Assembly Touchpad Remove Pull 2 tapes heads on 2 sides to remove them. When removing the tape, pull with steady force to avoid breaking it.
  • Page 41 Disassembly and Assembly Using the tweezers, remove the yellow tape and disconnect the touchpad FFC cable from the connector. Be careful not to damage the near components. Keep the Kapton tape to reuse it. Remove the touchpad module by pushing the opposite side of the touchpad module by hand.
  • Page 42 Disassembly and Assembly Fingerprint Sensor Assembly 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, align the fingerprint sensor module on the Case front. Align the fingerprint sensor bracket with two guide poles over the fingerprint sensor by using the tweezers.
  • Page 43 Disassembly and Assembly Using a cross-head screwdriver, fasten the 3 screws to the fingerprint sensor bracket.
  • Page 44 Disassembly and Assembly Touchpad Assembly 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 three films.
  • Page 45 Disassembly and Assembly Prepare a touchpad removable tape. Attach the touchpad removable tape on the touchpad glass. Attach it to the touchpad following this picture with guide line. Please skip this step if the tape is attached to the touchpad you ordered. Place the touchpad film jig on the top, left/right of touchpad part of the Case front.
  • Page 46 Disassembly and Assembly Attach the tape to the each film jig not to move. Press and hold the touchpad using the suction cup. Remove deformable paper. (colored film)
  • Page 47 Disassembly and Assembly Place the touchpad to the Case front. Assemble the touchpad from the bottom side of the Case front to assemble four hooks first. Attach in line with up, down, left and right gap.
  • Page 48 Disassembly and Assembly Check the hook at the bottom of the bracket T/P. Remove the touchpad film jig and tape. (3 ea)
  • Page 49 Disassembly and Assembly Check up, down, left and right gaps. (0.1-0.3 mm) Press the touchpad and make sure touchpad is attached well. Open the touchpad lever and insert touchpad cable and close the lever. Attach the yellow tape to the touchpad cable connector.
  • Page 50 Disassembly and Assembly Speaker Assembly 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 left and right speaker to the right location following the guide poles on Case front.
  • Page 51 Disassembly and Assembly Display Assembly 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 display to the Case front as shown in the picture below and then insert the both hinges into the guide pole of Case front.
  • Page 52 Disassembly and Assembly Main PBA Assembly 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 removable tape and attach it to the left side of Main to Sub connector port on main PBA.
  • Page 53 Disassembly and Assembly Using a cross-head screwdriver, fasten the 6 screws on the main PBA.
  • Page 54 Disassembly and Assembly Sub PBA Assembly 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 removable tape and attach it to the left side of Main to Sub connector port on sub PBA.
  • Page 55 Disassembly and Assembly Using a cross-head screwdriver, fasten the 6 screws on the sub PBA.
  • Page 56 Disassembly and Assembly Fan Assembly 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 fan modules to the Case front and using a cross-head screwdriver, fasten the 4 screws on the fan.
  • Page 57 Disassembly and Assembly Cables Assembly 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. Assemble fingerprint power button and fasten each connector properly. Make sure that the connection is completed.
  • Page 58 Disassembly and Assembly...
  • Page 59 Disassembly and Assembly Open the lever of each connector. Insert each cable into its connector, and then and close levers. The guide line of each cable should be located to the edge of its connector lever after inserting. Make sure that the connector guideline and the lever are assembled •...
  • Page 60 Disassembly and Assembly Antenna Cable Assembly 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. Assemble the black antenna cable according to the routing path of antenna cable. Make sure that cable is inserted in the hook.
  • Page 61 Disassembly and Assembly Assemble the blue antenna cable according to the routing path of antenna cable. Make sure that cable is inserted in the hook. • Make sure that the connection is completed after pressing the head of • connector. Grip the metal part of the antenna with the tweezers and move it to the fixed •...
  • Page 62 Disassembly and Assembly Assemble the grey antenna cable according to the routing path of antenna cable. Make sure that cable is inserted in the hook. • Make sure that the connection is completed after pressing the head of • connector. Grip the metal part of the antenna with the tweezers and move it to the fixed •...
  • Page 63 Disassembly and Assembly Assemble the white antenna cable according to the routing path of antenna cable. Make sure that cable is inserted in the hook. • Make sure that the connection is completed after pressing the head of • connector. Grip the metal part of the antenna with the tweezers and move it to the fixed •...
  • Page 64 Disassembly and Assembly After assembling the 5G module thermal plate, fasten 3 screws by using a cross-head screwdriver. Assemble the blue antenna cable. Make sure that the connection is completed after pressing the head of • connector. Grip the metal part of the antenna with the tweezers and move it to the fixed •...
  • Page 65 Disassembly and Assembly Assemble the Wi-Fi antenna cable. (Main/Aux) Make sure that the connection is completed after pressing the head of • connector. Grip the metal part of the antenna with the tweezers and move it to the fixed • plug position at the top of the antenna.
  • Page 66 Disassembly and Assembly Battery Assembly 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 marked area on the Case front. Using a cross-head screwdriver, fasten the 4 screws on the battery.
  • Page 67 Disassembly and Assembly Connect the battery cable into the main battery connector.
  • Page 68 Disassembly and Assembly Case Rear Assembly 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 press along the edges to assemble it. Using a cross-head screwdriver, fasten the 4 screws on the Case rear.
  • Page 69 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.
  • Page 70 Disassembly and Assembly Insert the SIM tray.
  • Page 71 This guide is a property of Samsung Electronics Co., Ltd. Any unauthorized use of guide can be punished under applicable international and/or domestic law. © Samsung Electronics Co., Ltd.