QNAP TS-453E Repair Manual
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QNAP TS-453E Repair Manual

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NAS Repair Manual
Document version: 1
02/07/2024

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Summary of Contents for QNAP TS-453E

  • Page 1 NAS Repair Manual Document version: 1 02/07/2024...

  • Page 2: Table Of Contents

    Repair requirements............................ 11 Resources..............................11 3. Category A NAS Models Disassembling the TS-453E......................... 12 Reassembling the TS-453E...........................24 TS-453E components and screws....................... 36 4. Category B NAS Models Disassembling the TS-AI642........................39 Reassembling the TS-AI642......................... 48 TS-AI642 components and screws......................58 5. Category C NAS Models Disassembling the TVS-h874T........................
  • Page 3 Phillips screwdriver............................ 174 positioning holes............................174 positioning pins............................174 power supply cage............................. 174 power supply unit............................174 riser card..............................174 self-tapping screw............................174 system board.............................. 174...

  • Page 4: Important Information

    Please keep the original packaging and packaging materials. If you want to return the product or send it for repairs, please use the original packaging to avoid damage. QNAP reserves the right not to provide a refund or warranty service for products that are damaged due to improper packaging.
  • Page 5 | NAS Repair Manual Power ⚠ WARNING To reduce the risk of fire or electric shock, ensure that you only connect the power cord to a properly grounded electrical outlet. Devices with redundant power supply may have one or more power supply unit (PSU) cords.
  • Page 6 | NAS Repair Manual • Dispose of used batteries properly according to local regulations or the instructions of the battery manufacturer. • Even used batteries may cause severe injury or death. • Call a local poison control center for treatment information. •...

  • Page 7: Introduction

    Damages caused by self-repair are not covered by QNAP warranty service. NAS model categorization QNAP NAS models can be divided into the following categories based on their mechanical design. Important These model lists are not exhaustive. If you are unable to find your model from the lists, we recommend following the given criteria to classify your model.
  • Page 8 | NAS Repair Manual Category B NAS models in this category are small or medium tower NAS models that have a sliding front cover protecting their drive bays. Representative model: TS-AI642 Similar models: TS-264, TS-464, TS-664, TS-262, TS-462, TS-432X, TS-632X Category C NAS models in this category are medium or large tower NAS models.
  • Page 9 | NAS Repair Manual Representative model: TVS-h1288X Similar models: TS-855X, TS-1655, TS-h886, TVS-h1688X Category E NAS models in this category are rackmount NAS models, which are usually larger than tower NAS models. Rackmount models are designed to be mounted on server racks. Representative model: TS-h1677AXU-RP Similar models: TS-873AeU, TS-873AeU-RP, TS-832PXU, TS-832PXU-RP, TS-855eU, TS-855eU-RP, TS-1232PXU-RP, TS-877XU-RP, TS-h1277XU-RP, TS-1283XU-RP, TS-h1277AXU-RP...
  • Page 10 | NAS Repair Manual 4. Check whether your NAS has 2.5-inch drive bays. If so, it belongs to Category D. If not, it belongs to Category C. Introduction...
  • Page 11 | NAS Repair Manual Introduction...

  • Page 12: Repair Requirements

    • Flat, anti-static surface without exposure to direct sunlight, liquids, or chemicals Tools • Phillips #2 screwdriver • Phillips #1 screwdriver • Anti-static wrist strap Resources QNAP provides the following resources: Resource Self-Repair Portal https://www.qnap.com/go/service/self-repair Documentation https://download.qnap.com Compatibility List https://www.qnap.com/compatibility Service Portal https://service.qnap.com...

  • Page 13: Category A Nas Models

    | NAS Repair Manual 3. Category A NAS Models This chapter uses the TS-453E as the representative NAS model for category A. The disassembly and reassembly instructions, and the list of components and screws, are based on the representative model.
  • Page 14 | NAS Repair Manual 4. Unlock the drive trays. 5. Remove all drive trays. Important Remember the number of each drive. Each drive will need to be returned to their original bay. 6. Remove the case cover. a. Position the NAS on its left side. Category A NAS Models...
  • Page 15 | NAS Repair Manual b. Remove the screws on the rear panel. Note • The pan head M3x5 screws require a Phillips #1 screwdriver. • A torque of 2.75 kgf.cm (2.39 lbf.in) ± 0.25 kgf.cm (0.22 lbf.in) is recommended for electric screwdrivers.
  • Page 16 | NAS Repair Manual 7. Remove the drive cage. a. Remove the screws that secure the drive cage to the system board. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 17 | NAS Repair Manual b. Lift the drive cage until it is completely detached. Note Detaching the drive cage also detaches the riser card and the backplane, which are screwed to the drive cage, from their slots on the system board. 8.
  • Page 18 | NAS Repair Manual b. Remove the M.2 SSD. c. Remove the other M.2 SSD. 10. Remove the riser card. Warning Do not touch the components on the circuit board or allow the components to come into direct contact with metallic objects. Doing so may cause damage. a.
  • Page 19 | NAS Repair Manual b. Remove the riser card. 11. Remove the drive backplane. Warning Do not touch the components on the circuit board or allow the components to come into direct contact with metallic objects. Doing so may cause damage. a.
  • Page 20 | NAS Repair Manual Note • The pan head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. b. Lightly push back the connector end of the backplane so that the other end of the backplane is lifted off of the drive cage surface.
  • Page 21 | NAS Repair Manual a. Remove the screws that secure the tray to the left panel. Note • The pan head self-tapping D3x6 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 22 | NAS Repair Manual 13. Remove the system fan. a. Disconnect the fan cable from the system board. b. Remove the screws that secure the fan to the tray. Note • The flat head self-tapping M5x10 screws require a Phillips #2 screwdriver. •...
  • Page 23 | NAS Repair Manual c. Remove the fan. Important Remember which side of the fan is attached. To ensure proper cooling, the correct side must be reattached so that the airflow is directed out of the rear panel. There may be an arrow on the side of the fan that indicates the airflow direction. 14.
  • Page 24 | NAS Repair Manual a. Remove the screws that secure the HDMI ports on the system board to the rear panel of the tray. Note • The flat head M2x4 screws require a Phillips #1 screwdriver. • A torque of 2 kgf.cm (1.74 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.

  • Page 25: Reassembling The Ts-453E

    • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. c. Lift the system board by approximately 3 mm. d. Slide the system board out of the tray. Reassembling the TS-453E Before you start, make sure you read the Repair requirements.
  • Page 26 | NAS Repair Manual 1. Install the system board. Warning Do not touch the components on the circuit board or allow the components to come into direct contact with metallic objects. Doing so may cause damage. a. Slide the system board into the system board tray. b.
  • Page 27 | NAS Repair Manual Note • The pan head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. d. Attach the screws that secure the HDMI ports on the system board to the rear panel of the tray.
  • Page 28 | NAS Repair Manual 2. Install the system fan. a. Align the holes on the fan to the screw holes on the tray. Important To ensure proper cooling, the correct side of the fan must be reattached so that the airflow is directed out of the rear panel.
  • Page 29 | NAS Repair Manual Note • The flat head self-tapping M5x10 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. c. Connect the fan cable to the system board. 3.
  • Page 30 | NAS Repair Manual d. Attach the screws that secure the tray to the left panel. Note • The pan head self-tapping D3x6 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 31 | NAS Repair Manual b. Align the holes on the backplane to the positioning posts and screw holes on the drive cage. c. Place the backplane on the drive cage so that the positioning posts keep the backplane in place. d.
  • Page 32 | NAS Repair Manual 5. Attach the riser card to the drive cage. Warning Do not touch the components on the circuit board or allow the components to come into direct contact with metallic objects. Doing so may cause damage. a.
  • Page 33 | NAS Repair Manual b. Attach the screw. Note • The pan head M2.5x3 screw requires a Phillips #2 screwdriver. • A torque of 3 kgf.cm (2.60 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. c. Optional: Install an additional M.2 SSD. 7.
  • Page 34 | NAS Repair Manual c. Attach the screws to secure the drive cage. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 35 | NAS Repair Manual c. Attach the screws that secure the case cover to the rear panel. Note • The pan head M3x5 screws require a Phillips #1 screwdriver. • A torque of 2.75 kgf.cm (2.39 lbf.in) ± 0.25 kgf.cm (0.22 lbf.in) is recommended for electric screwdrivers.
  • Page 36 | NAS Repair Manual 9. Slide each drive tray back into the NAS. Important Each drive must be returned to their original bay. 10. Optional: Lock the trays. Category A NAS Models...

  • Page 37: Ts-453E Components And Screws

    | NAS Repair Manual TS-453E components and screws Note The information presented here apply only to the representative model of the NAS category. While all models within a NAS category have the same general structural design, their components and screws may differ in size, quantity, and other specifications.
  • Page 38 | NAS Repair Manual Component Screw Type Screwdriver Attached To (Quantity) (Quantity) (Torque) System board tray Pan head Phillips #2 Left panel Self-tapping (5 kgf.cm / 4.34 lbf.in) D3x6 Drive tray (3.5- inch) Backplane Pan head Phillips #2 Drive cage M3x5 (7 kgf.cm / 6.08 lbf.in) Drive cage...
  • Page 39 | NAS Repair Manual Component Screw Type Screwdriver Attached To (Quantity) (Quantity) (Torque) M.2 SSD Pan head Phillips #2 Inserted into slot on riser (2 maximum, not M2.5x3 (3 kgf.cm / card, and then secured included with original (2, included with 2.60 lbf.in) to the drive cage with a NAS)

  • Page 40: Category B Nas Models

    | NAS Repair Manual 4. Category B NAS Models This chapter uses the TS-AI642 as the representative NAS model for category B. The disassembly and reassembly instructions, list of components and screws, and list of replacement parts are based on the representative model.
  • Page 41 | NAS Repair Manual b. Slide the lock up to release the front cover. c. Slide the front cover to the left and then pull. Category B NAS Models...
  • Page 42 | NAS Repair Manual 5. Remove all drive trays. Important Remember the number of each drive. Each drive will need to be returned to their original bay. 6. Remove the case cover. a. Remove the screws that secure the case cover to the chassis. b.
  • Page 43 | NAS Repair Manual c. Slide the case cover to the left to detach it from the chassis. Note • The pan head M3x5 screws require a Phillips #1 screwdriver. • A torque of 2.75 kgf.cm (2.39 lbf.in) ± 0.25 kgf.cm (0.22 lbf.in) is recommended for electric screwdrivers.
  • Page 44 | NAS Repair Manual c. Remove the fan. Important Remember which side of the fan is attached. To ensure proper cooling, the correct side must be reattached so that the airflow is directed out of the rear panel. There may be an arrow on the side of the fan that indicates the airflow direction. Note •...
  • Page 45 | NAS Repair Manual b. Remove the screws that secure the drive cage to the system board. Note • The flat head D3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 46 | NAS Repair Manual 9. Remove the drive backplane. Warning Do not touch the components on the circuit board or allow the components to come into direct contact with metallic objects. Doing so may cause damage. a. Remove the screws that secure the backplane to the drive cage. Note •...
  • Page 47 | NAS Repair Manual c. Carefully remove the backplane from the drive cage. 10. Remove the system board. Note The system board tray and the rear panel are connected as a single component. a. Remove the screws that secure the tray to the chassis base. Note •...
  • Page 48 | NAS Repair Manual b. Remove the screws that secure the HDMI ports on the system board to the rear panel of the tray. Note • The pan head self-tapping M2x4 screws require a Phillips #1 screwdriver. • A torque of 2 kgf.cm (1.74 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.

  • Page 49: Reassembling The Ts-Ai642

    | NAS Repair Manual 11. Remove the system board. Warning Do not touch the components on the circuit board or allow the components to come into direct contact with metallic objects. Doing so may cause damage. a. Carefully pull out the system board from the chassis. b.
  • Page 50 | NAS Repair Manual Warning • Observe electrostatic discharge (ESD) procedures to avoid damage to components. • Moving fan blades: Keep your hands and other body parts away from moving fan blades. • Other moving components: Keep your hands and other body parts away from other moving components.
  • Page 51 | NAS Repair Manual b. Attach the mylar. c. Align the mounting holes on the system board to the screw holes on the tray. d. Attach the screws that secure the HDMI ports on the system board to the rear panel of the tray.
  • Page 52 | NAS Repair Manual e. Attach the screws that secure the system board to the tray. Note • The flat head M2x4 screws require a Phillips #1 screwdriver. • A torque of 2 kgf.cm (1.74 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 53 | NAS Repair Manual a. Carefully insert the connector end of the backplane into the hole at the back of the drive cage. b. Align the holes on the backplane to the positioning posts and screw holes on the drive cage.
  • Page 54 | NAS Repair Manual 3. Attach the system board tray to the chassis base. a. Insert the tray into the front of the chassis base at an angle of around 20 degrees. b. Ensure the USB port on the system board is inserted into the USB port hole on the chassis base.
  • Page 55 | NAS Repair Manual 4. Install the system fan. a. Place the NAS in its normal upright position. b. Align the holes on the fan to the screw holes on the tray. Important To ensure proper cooling, the correct side of the fan must be reattached so that the airflow is directed out of the rear panel.
  • Page 56 | NAS Repair Manual d. Connect the fan cable to the system board. 5. Attach the case cover. a. Place the cover on the device. b. Slide the cover forward. Category B NAS Models...
  • Page 57 | NAS Repair Manual c. Attach the screws that secure the case cover to the rear panel. Note • The pan head M3x5 screws require a Phillips #1 screwdriver. • A torque of 2.75 kgf.cm (2.39 lbf.in) ± 0.25 kgf.cm (0.22 lbf.in) is recommended for electric screwdrivers.
  • Page 58 | NAS Repair Manual 6. Slide each drive tray back into the NAS. Important Each drive must be returned to their original bay. 7. Attach the front cover. a. Align the front cover with the grooves on the case and then slide to the right. Category B NAS Models...

  • Page 59: Ts-Ai642 Components And Screws

    | NAS Repair Manual b. Slide the lock down to secure the front cover. TS-AI642 components and screws Note The information presented here apply only to the representative model of the NAS category. While all models within a NAS category have the same general structural design, their components and screws may differ in size, quantity, and other specifications.
  • Page 60 | NAS Repair Manual Component Screw Type Screwdriver Attached To (Quantity) (Quantity) (Torque) Drive cage HDMI ports on system board Flat head Phillips #1 Drive cage M2x4 (2 kgf.cm / 1.74 lbf.in) (Rear panel) Case cover System fans Flat head Phillips #2 Drive cage Self-tapping...
  • Page 61 | NAS Repair Manual Component Screw Type Screwdriver Attached To (Quantity) (Quantity) (Torque) Right panel Drive tray (3.5-inch) Front cover Category B NAS Models...

  • Page 62: Category C Nas Models

    | NAS Repair Manual 5. Category C NAS Models This chapter uses the TVS-h874T as the representative NAS model for category C. The disassembly and reassembly instructions, and the list of components and screws, are based on the representative model. For details on category C NAS models, see NAS model categorization.
  • Page 63 | NAS Repair Manual a. Optional: Unlock the tray. Note The preinstalled drive trays come unlocked. Important Ensure the drive tray keys are stored in a safe place. b. Pull the tray handle outward. c. Pull the tray out. Category C NAS Models...
  • Page 64 | NAS Repair Manual 5. Remove the case cover. a. Remove the screws. b. Slide the cover back. c. Lift the cover off the device. Note The flat head M3x4 screws require a Phillips #2 screwdriver. 6. Remove the LCD panel cable from the LCD panel. Category C NAS Models...
  • Page 65 | NAS Repair Manual 7. Remove the power supply unit connectors from the device. a. Remove the motherboard cable from the cable clips on the system board tray. b. Remove the system board cable from the cable clips on the system board. Category C NAS Models...
  • Page 66 | NAS Repair Manual c. Remove the backplane cable from the cable clips on the backplane tray. 8. Remove the power supply unit. a. Remove the screws securing the power supply unit to the base chassis. Note • The flat head M3x4 screws on the rear chassis require a Philips #2 screwdriver. •...
  • Page 67 | NAS Repair Manual b. Slide the power supply unit off the base chassis. 9. Remove existing expansion cards. a. Remove the screw that secures the PCIe card to the chassis. Note The flat head M3x5 screw requires a Phillips #2 screwdriver. b.
  • Page 68 | NAS Repair Manual 10. Remove the rear panel. a. Remove the screws securing the rear panel to the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • To prevent misalignment or stress on the cover during removal, remove the screws in the following order: top edge first, then sides, back panel, and bottom last.
  • Page 69 | NAS Repair Manual b. Remove the fan cable from the system board. 12. Remove the CPU and system fan modules. a. Remove the screws securing the fan modules to the rear panel. Note The self-tapping M5x10 screws require a Phillips #2 screwdriver. 13.
  • Page 70 | NAS Repair Manual a. Access and remove the screws securing the backplane from the inside of the front panel. Note The flat head M3x5 screws require a Phillips #2 screwdriver. b. Lightly push back the connector end of the backplane so that the other end of the backplane is lifted off of the drive cage surface.
  • Page 71 | NAS Repair Manual b. Unlock the M.2 spacer by pushing down on its edge. c. Carefully pull the M.2 solid-state drive out of its slot. 15. Remove the system board tray from the chassis. a. Position the NAS on its left side. Category C NAS Models...
  • Page 72 | NAS Repair Manual b. Remove the screws that secure the system board tray to the bottom of the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 73 | NAS Repair Manual Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. e. Remove the screws securing the system board tray to the outer side of the side panel. Note •...
  • Page 74 | NAS Repair Manual f. Slide the system board tray back to remove it. 16. Remove the system board from the system board tray. a. Remove the screws that secure the system board to the tray. Note • The flat head M3x5 screws require a Phillips #2 screwdriver. •...
  • Page 75 | NAS Repair Manual b. Remove the system board. 17. Remove the front panel from the base chassis. a. Remove the screws that secure the bottom of the front cover to the bottom of the chassis. Note • The flat head M3x5 screws require a Phillips #2 screwdriver. •...
  • Page 76 | NAS Repair Manual b. Release the latches that secure the front cover to the chassis. Note You may need to use a tool such as a slotted screwdriver to help push and release the latches. c. Pull the front panel away at an angle. 18.
  • Page 77 | NAS Repair Manual Note • The flat head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. b. Pull the LED circuit board away from the chassis. 19.

  • Page 78: Reassembling The Tvs-H874T

    | NAS Repair Manual b. Remove the LCD display module. 20. Remove the rubber feet. a. Remove the screws securing the rubber feet to the base chassis. Note The flat head M3x5 screws require a Philips #2 screwdriver. b. Remove the rubber feet. Reassembling the TVS-h874T Before you start, make sure you read the Repair...
  • Page 79 | NAS Repair Manual b. Attach the screws. Note The flat head M3x5 screws require a Philips #2 screwdriver. 2. Attach the LCD display module to the chassis. a. Align the holes on the LCD display module to the screw holes on the chassis. b.
  • Page 80 | NAS Repair Manual Note • The flat head M2.5x4 screws require a Philips #1 screwdriver. • A torque of 3 kgf.cm (2.60 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. 3. Attach the LED circuit board to the chassis. a.
  • Page 81 | NAS Repair Manual b. Attach the front panel to the chassis. c. Attach the screws that secure the front panel to the chassis. Note • The flat head M3x5 screws require a Phillips #2 screwdriver. • A torque of 3 kgf.cm (2.60 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 82 | NAS Repair Manual 5. Attach the system board to the system board tray. a. Align the mounting holes on the system board with the screw holes on the tray. b. Attach the screws. Note • The flat head M3x5 screws require a Phillips #2 screwdriver. •...
  • Page 83 | NAS Repair Manual a. Slide the system board tray in. b. Attach the screw that secures the system board tray from the inside of the front panel. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. •...
  • Page 84 | NAS Repair Manual c. Attach the screws that secure the tray to the side of the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 85 | NAS Repair Manual Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. 7. Attach the backplane to the chassis. a.
  • Page 86 | NAS Repair Manual c. Attach the screws from the inside of the front panel. Warning Do not touch the components on the circuit board or allow the components to come into direct contact with metallic objects. Doing so may cause damage. Note The flat head M3x5 screws require a Phillips #2 screwdriver.
  • Page 87 | NAS Repair Manual Note The self-tapping M5x10 screws require a Phillips #2 screwdriver. 9. Attach the rear panel. a. Align the holes on the rear panel to the screw holes and ports on the chassis. b. Attach the screws that secure the rear panel to the chassis. Note •...
  • Page 88 | NAS Repair Manual 10. Attach the fan cables. a. Attach the fan cables to the backplane tray. b. Attach the fan cable to the system board. Category C NAS Models...
  • Page 89 | NAS Repair Manual 11. Attach the power supply unit. a. Align the screw holes of the power supply unit to the screw holes of the chassis. b. Attach the screws that secure the power supply unit to the chassis. Note •...
  • Page 90 | NAS Repair Manual 12. Attach the power supply unit cables. a. Attach the power supply unit cables to the cable clips on the system board tray. Category C NAS Models...
  • Page 91 | NAS Repair Manual b. Attach the power supply unit cable to the cable clips on the backplane. 13. Attach the LCD display module to the system board. 14. Optional: Attach expansion cards. a. Insert an expansion card into the slot on the system board. Category C NAS Models...
  • Page 92 | NAS Repair Manual b. Attach the screw that secures the PCIe bracket to the rear panel. Note The flat head M3x5 screw requires a Phillips #2 screwdriver. 15. Attach the case cover. a. Place the cover on the device. b.
  • Page 93 | NAS Repair Manual 16. Load the trays into the bay. a. Insert the tray into the bay. b. Push the handle. c. Lock the tray. 17. Connect all cables and external attachments. 18. Connect the power cord to the electrical outlet. 19.

  • Page 94: Tvs-H874T Components And Screws

    | NAS Repair Manual TVS-h874T components and screws Important The information presented here apply only to the representative model of the NAS category. While all models within a NAS category have the same general structural design, their components and screws may differ in size, quantity, and other specifications. Note Recommended torque values are provided for electric screwdrivers.
  • Page 95 | NAS Repair Manual Component Screw Type Screwdriver Attached To (Quantity) (Quantity) (Torque) Front panel Flat head Phillips #2 Chassis M3x5 (3 kgf.cm / 2.60 lbf.in) LCD display module Flat head Phillips #1 Chassis M2.5x4 LED circuit board Flat head Phillips #2 Chassis M3x5...
  • Page 96 | NAS Repair Manual Component Screw Type Screwdriver Attached To (Quantity) (Quantity) (Torque) System board Flat head Phillips #2 System board M3X5 tray Backplane Chassis Optional Components These components are not included with the original NAS but may be installed by the user. Component Screw Type Screwdriver...

  • Page 97: Category D Nas Models

    | NAS Repair Manual 6. Category D NAS Models WORK IN PROGRESS This chapter uses the TVS-h1288X as the representative NAS model for category D. The disassembly and reassembly instructions, and the list of components and screws, are based on the representative model.
  • Page 98 | NAS Repair Manual 4. Unlock the trays. 2.5-inch drive tray 3.5-inch drive tray Category D NAS Models...
  • Page 99 | NAS Repair Manual 5. Remove all drive trays. Important Remember the number of each drive. Each drive will need to be returned to their original bay. 6. Remove the case cover. a. Remove the screws on the rear panel. Note •...
  • Page 100 | NAS Repair Manual c. Lift the cover until it is completely detached from the chassis. 7. Remove expansion cards. a. Remove the screw that secures the expansion card to the chassis. Note • The pan head M3x5 screw requires a Phillips #2 screwdriver. •...
  • Page 101 | NAS Repair Manual c. Carefully pull the card out of the slot. Full-height PCIe expansion card Low-profile PCIe expansion card Category D NAS Models...
  • Page 102 | NAS Repair Manual 8. Remove the CPU fan tray. a. Detach the fan cables from the system board. b. Remove the screw that secures the fan tray to the chassis. Note • The flat head M3x4 screw requires a Phillips #2 screwdriver. •...
  • Page 103 | NAS Repair Manual 9. Remove the air shroud from the fan tray. 10. Remove the CPU fans from the fan tray. a. Remove the screws that secure the fans to the fan tray. Note • The flat head M4.5x10 screws require a Phillips #2 screwdriver. •...
  • Page 104 | NAS Repair Manual b. Remove the fan cables from the cable clips on the fan tray. c. Remove the fans. Category D NAS Models...
  • Page 105 | NAS Repair Manual 11. Remove the rear panel. a. Detach the system fan cables from the system board. b. Remove the screws that secure the power supply unit to the rear panel. Note • The flat head #6-32 screws require a Phillips #2 screwdriver. •...
  • Page 106 | NAS Repair Manual c. Remove the screws that secure the rear panel to the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 107 | NAS Repair Manual b. Remove the fans. 13. Remove the top bracket from the chassis. a. Remove the screws that secure the top bracket to the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. •...
  • Page 108 | NAS Repair Manual 14. Remove the power supply unit from the chassis. a. Detach the power cables from the system board. b. Detach the power cable from the backplane. c. Remove the screws that secure the power supply unit bracket to the chassis. Note •...
  • Page 109 | NAS Repair Manual e. Remove the power supply unit bracket from the power supply unit. 15. Remove the front panel from the chassis. a. Detach the LCD display module cable. b. Detach the LED cables. Category D NAS Models...
  • Page 110 | NAS Repair Manual c. Remove the screws that secure the front panel to the chassis. Note • The pan head M3x5 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 111 | NAS Repair Manual Note You may need to use a tool such as a slotted screwdriver to help push down and release the latches. e. Remove the top end of the front panel from the chassis. f. Pull the front panel away at an angle. Note There are hooks at the bottom of the front panel that latch onto the chassis.
  • Page 112 | NAS Repair Manual b. Remove the LED circuit boards. 17. Remove the backplane tray from the chassis. a. Remove the screws that secure the backplane tray to the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. •...
  • Page 113 | NAS Repair Manual 18. Remove the backplane from the tray. a. Remove the screws that secure the backplane to the tray. Note • The pan head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 114 | NAS Repair Manual b. Remove the screws that secure the system board tray to the bottom of the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 115 | NAS Repair Manual e. Slide out the system board tray. 20. Remove the CPU heatsink from the system board. a. Loosen the screws that secure the heatsink to the system board. Note • The pan head M3x5 screws require a Phillips #2 screwdriver. •...
  • Page 116 | NAS Repair Manual b. Remove the heatsink. There may be a layer of thermal paste that keeps the heatsink attached to the CPU. You can break the adhesive tension of the thermal paste by gently twisting the heatsink. 21. Remove the system board from the system board tray. a.
  • Page 117 | NAS Repair Manual Note • The pan head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. b. Remove the system board. 22. Remove the LCD display module from the front panel. a.

  • Page 118: Reassembling The Tvs-H1288X

    | NAS Repair Manual b. Remove the screws that secure the rubber feet to the chassis. Note • The flat head M3x5 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 119 | NAS Repair Manual b. Attach the screws. Note • The pan head M2.5x3 screws require a Phillips #1 screwdriver • A torque of 3 kgf.cm (2.60 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. 3. Attach the system board to the system board tray. a.
  • Page 120 | NAS Repair Manual Note • The pan head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. 4. Attach the CPU heatsink to the system board. a.
  • Page 121 | NAS Repair Manual b. Attach the screws that secure the tray to the front of the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 122 | NAS Repair Manual Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. e. Place the chassis in its normal upright position. 6.
  • Page 123 | NAS Repair Manual b. Attach the screws. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. 8. Attach the LED circuit boards to the front panel. a.
  • Page 124 | NAS Repair Manual Note • The pan head M3x5 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. 9. Attach the front panel to the chassis. a.
  • Page 125 | NAS Repair Manual d. Attach the screws. Note • The pan head M3x5 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. • On other models, there may also be screws that secure the front panel to the bottom of the chassis.
  • Page 126 | NAS Repair Manual 10. Attach the power supply unit. a. Attach the power supply unit bracket to the power supply unit. b. Insert the power supply unit with the bracket. c. Align the holes in the bracket with the holes on the chassis. d.
  • Page 127 | NAS Repair Manual e. Attach the power cables to the system board. f. Attach the power cable to the backplane. 11. Attach the top bracket to the chassis. a. Slide in the top bracket. b. Align the holes in the top bracket to the screw holes on the chassis. c.
  • Page 128 | NAS Repair Manual Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. 12. Attach the system fans to the rear panel. Important To ensure proper cooling, the correct side of the fans must be reattached so that the airflow is directed out of the rear panel.
  • Page 129 | NAS Repair Manual b. Attach the screws that secure the rear panel to the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 130 | NAS Repair Manual Note • The flat head #6-32 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. d. Attach the system fan cables to the system board. 14.
  • Page 131 | NAS Repair Manual c. Attach the screws. Note • The flat head M4.5x10 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. d. Attach the fan cables to the cable clips on the fan tray. Category D NAS Models...
  • Page 132 | NAS Repair Manual 15. Attach the air shroud to the fan tray. The air shroud has three adhesive surfaces: Two attach to the fan tray and one attaches to the lower CPU fan. 16. Attach the fan tray to the chassis. a.
  • Page 133 | NAS Repair Manual Note • The flat head M3x4 screw requires a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. d. Attach the fan cables to the system board. 17.
  • Page 134 | NAS Repair Manual b. Attach the screw that secures the PCIe bracket to the rear panel. Full-height PCIe expansion card Low-profile PCIe expansion card Note • The pan head M3x5 screw requires a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 135 | NAS Repair Manual b. Slide the cover forward. c. Attach the screws. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 136 | NAS Repair Manual 19. Slide each drive tray back into the NAS. Important Each drive must be returned to their original bay. Category D NAS Models...

  • Page 137: Tvs-H1288X Components And Screws

    | NAS Repair Manual 20. Lock the trays. 2.5-inch trays 3.5-inch trays TVS-h1288X components and screws Note The information presented here apply only to the representative model of the NAS category. While all models within a NAS category have the same general structural design, their components and screws may differ in size, quantity, and other specifications.
  • Page 138 | NAS Repair Manual Important Recommended torque values are provided for electric screwdrivers. To avoid damage to the screw or component, the actual torque setting should not exceed ± 0.5 kgf.cm (0.43 lbf.in) of the recommended value, unless specified otherwise. Component Screw Type Screwdriver...
  • Page 139 | NAS Repair Manual Component Screw Type Screwdriver Attached To (Quantity) (Quantity) (Torque) LCD display module Pan head Phillips #1 Chassis M2.5x3 (3 kgf.cm / 2.60 lbf.in) Backplane Pan head Phillips #2 Backplane tray M3x5 (7 kgf.cm / 6.08 lbf.in) (12) Backplane tray Flat head...
  • Page 140 | NAS Repair Manual Component Screw Type Screwdriver Attached To (Quantity) (Quantity) (Torque) Rear panel Flat head Phillips #2 • Chassis M3x4 (5 kgf.cm / 4.34 lbf.in) (5 screws) (11) • Top bracket (3 screws) • System board tray (3 screws) System board tray Flat head Phillips #2...

  • Page 141: Category E Nas Models

    | NAS Repair Manual 7. Category E NAS Models This chapter uses the TS-h1677AXU-RP as the representative NAS model for category E. The disassembly and reassembly instructions, and the list of components and screws, are based on the representative model. For details on category E NAS models, see NAS model categorization.
  • Page 142 | NAS Repair Manual b. Pull the handles off the chassis. Note • The flat head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. 5.
  • Page 143 | NAS Repair Manual 6. Remove the rear top cover. a. Loosen the screws that secure the top cover to the chassis. b. Slide the rear top cover back. c. Lift the rear top cover off the device. 7. Remove the front top cover. a.
  • Page 144 | NAS Repair Manual c. Lift the front top cover off the device. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 145 | NAS Repair Manual b. Tilt the CPU fan duct. c. Pull the CPU fan duct out of the device. 9. Remove the fan try from the chassis. a. Disconnect the power connectors of all fans from the system board. b.
  • Page 146 | NAS Repair Manual c. Lift the fan tray out of the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 147 | NAS Repair Manual 10. Remove the fans from the fan tray. a. Remove the screws that secure the fans to the fan tray. Important Remember which side of the fan is attached. To ensure proper cooling, the correct side must be reattached so that the airflow is directed out of the rear panel. There may be an arrow on the side of the fan that indicates the airflow direction.
  • Page 148 | NAS Repair Manual 11. Remove power supply units (PSU). a. For each PSU, firmly press the PSU latch toward the PSU handle, and pull the PSU out. 12. Remove power supply cage. a. Remove the screws securing the power supply cage to the bottom of the chassis. Note •...
  • Page 149 | NAS Repair Manual b. Disconnect the PSU cables from the backplane and system board. c. Remove the screws that secure the power supply cage to the rear panel. d. Pull the power supply cage out. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. •...
  • Page 150 | NAS Repair Manual b. Pull the expansion card away from the slot. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 151 | NAS Repair Manual Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. 15. Optional: Remove existing memory modules. a.
  • Page 152 | NAS Repair Manual b. Remove the M.2 SSD. 17. Remove the system board. Warning Do not touch the components on the circuit board or allow the components to come into direct contact with metallic objects. Doing so may cause damage. a.
  • Page 153 | NAS Repair Manual Note • The flat head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. b. Slide the system board backward. c.
  • Page 154 | NAS Repair Manual Note • The flat head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. b. Remove the screws that secure the backplane tray to the sides of the chassis. Note •...
  • Page 155 | NAS Repair Manual c. Disconnect the LED cable from the backplane. d. Pull the LED cable out of the chassis. Category E NAS Models...
  • Page 156 | NAS Repair Manual e. Lift the backplane tray out of the chassis. 19. Remove the backplane from the backplane tray. Warning Do not touch the components on the circuit board or allow the components to come into direct contact with metallic objects. Doing so may cause damage. a.

  • Page 157: Reassembling The Ts-H1677Axu-Rp

    | NAS Repair Manual Note • The flat head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. Reassembling the TS-h1677AXU-RP Before you start, make sure you read the Repair requirements.
  • Page 158 | NAS Repair Manual b. Attach the screws that secure the backplane to the backplane tray. Note • The flat head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 159 | NAS Repair Manual b. Insert the LED cable into the chassis. c. Connect the LED cable to the backplane. Category E NAS Models...
  • Page 160 | NAS Repair Manual d. Attach the screws that secure the backplane tray to the bottom of the chassis. Note • The flat head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 161 | NAS Repair Manual Note • The flat head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. 3. Install the system board. Warning Do not touch the components on the circuit board or allow the components to come into direct contact with metallic objects.
  • Page 162 | NAS Repair Manual c. Attach the screws that secure the system board to the chassis. Note • The flat head M3x5 screws require a Phillips #2 screwdriver. • A torque of 7 kgf.cm (6.08 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 163 | NAS Repair Manual Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers. 5. Install the power supply cage. a.
  • Page 164 | NAS Repair Manual c. Connect the PSU cables to the system board and backplane. d. Attach the screws that secure the power supply cage to the bottom of the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. •...
  • Page 165 | NAS Repair Manual b. Attach the screws that secure the fans to the fan tray. Important To ensure proper cooling, the correct side of the fan must be reattached so that the airflow is directed out of the rear panel. There may be an arrow on the side of the fan that indicates the airflow direction.
  • Page 166 | NAS Repair Manual b. Attach the screws that secure the fan tray to the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 167 | NAS Repair Manual 8. Attach the CPU fan duct. a. Attach the CPU fan duct to the CPU fan. b. Attach the bottom hooks of the CPU fan duct to the CPU heatsink screws. 9. Optional: Install memory modules. a.
  • Page 168 | NAS Repair Manual d. Carefully press down on the module until the retention clips lock the module into place. 10. Optional: Install M.2 SSDs. a. Pull out the pushpin. b. Insert the M.2 SSD into the slot. c. Insert the pushpin to secure the drive. 11.
  • Page 169 | NAS Repair Manual c. Attach the screws that secure the front top cover to the chassis. Note • The flat head M3x4 screws require a Phillips #2 screwdriver. • A torque of 5 kgf.cm (4.34 lbf.in) ± 0.5 kgf.cm (0.43 lbf.in) is recommended for electric screwdrivers.
  • Page 170 | NAS Repair Manual c. Tighten the screws that secure the rear top cover to the chassis. 13. Optional: Install handles. a. Align the holes on the handle with the holes on the chassis. b. Attach the screws that secure the handle to the chassis. Note •...

  • Page 171: Ts-H1677Axu-Rp Components And Screws

    | NAS Repair Manual 14. Slide each drive tray back into the NAS. Important Each drive must be returned to their original bay. TS-h1677AXU-RP components and screws Note The information presented here apply only to the representative model of the NAS category. While all models within a NAS category have the same general structural design, their components and screws may differ in size, quantity, and other specifications.
  • Page 172 | NAS Repair Manual Component Screw Type Screwdriver Attached To (Quantity) (Quantity) (Torque) Rear top cover Thumb screw Chassis System fan Self-tapping Phillips #2 Fan tray D5x10 (5 kgf.cm / 4.34 lbf.in) CPU fan Self-tapping Phillips #2 Fan tray D5x10 (5 kgf.cm / 4.34 lbf.in) Handles Flat head...
  • Page 173 | NAS Repair Manual Component Screw Type Screwdriver Attached To (Quantity) (Quantity) (Torque) Expansion card slot cover Flat head Phillips #2 Rear panel M3x4 (5 kgf.cm / 4.34 lbf.in) Fan duct System board Fan tray Flat head Phillips #2 Chassis M3x4 (5 kgf.cm / 4.34 lbf.in) Power supply cage...

  • Page 174: Glossary

    Thin plastic covering for directing airflow from fans backplane A circuit board that serves as an extension to the system board. QNAP backplanes typically contain slots for connecting hard disk drives and solid-state drives with the use of drive trays.
  • Page 175 A small circuit board that serves as an extension to the system board for installing expansion cards and modules self-tapping screw A screw that can create its own threads as it is driven into the material. QNAP sometimes uses self-tapping screws for certain components such as fans. system board...

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