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What are important considerations before servicing a Lenovo product?
This manual is intended only for trained service technicians who are familiar with Lenovo products.
Before servicing a Lenovo product, be sure to read all the information under Chapter 1 “Safety information”.
How can general safety be ensured during maintenance?
Observe good housekeeping in the area of the machines during and after maintenance.
Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.
Before you start the machine, make sure that other service technicians and the customer’s personnel are not in a hazardous position.
Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the machine.
Keep your tool case away from walk areas so that other people will not trip over it.
After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that is worn or defective.
Reinstall all covers correctly before returning the machine to the customer.
Fan louvers on the machine help to prevent overheating of internal components. Do not obstruct fan louvers or cover them with labels or stickers.
How should heavy objects be lifted safely?
Make sure that you can stand safely without slipping.
Distribute the weight of the object equally between your feet.
Use a slow lifting force. Never move suddenly or twist when you attempt to lift.
Lift by standing or by pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you.
What personal safety precautions related to clothing and accessories should be taken during maintenance?
Do not wear loose clothing that can be trapped in the moving parts of a machine. Make sure that your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.
Insert the ends of your necktie or scarf inside clothing or fasten it with a non-conductive clip, about 8 centimeters (3 inches) from the end.
Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.
Metal objects are good electrical conductors.
When should safety glasses be worn?
Wear safety glasses when you are hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any other conditions that might be hazardous to your eyes.
What rules should be observed when working on electrical equipment?
Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock.
Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.
Do not work alone under hazardous conditions or near equipment that has hazardous voltages.
Disconnect all power before:
Performing a mechanical inspection
Working near power supplies
What precautions should be taken before working on the machine, especially when unplugging the power cord is not possible?
Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine, and to lock the wall box in the off position.
What precautions are necessary when working on a machine with exposed electrical circuits?
Ensure that another person, familiar with the power-off controls, is near you.
Another person must be there to switch off the power, if necessary.
Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back.
How can electrical shock be prevented?
An electrical shock can occur only when there is a complete circuit. By observing the rule of using only one hand when working with powered-on electrical equipment, you may prevent a current from passing through your body.
What are the guidelines for using testers?
When using testers, set the controls correctly and use the approved probe leads and accessories for that tester.
Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames.
What should be done regarding tool maintenance and usage?
Regularly inspect and maintain your electrical hand tools for safe operational condition.
Do not use worn or broken tools and testers.
How to verify power disconnection?
Never assume that power has been disconnected from a circuit. First, check that it has been powered off.
How can work area hazards be identified?
Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, non-grounded power extension cables, power surges, and missing safety grounds.
What parts should not be serviced with power on?
Do not service the following parts with the power on when they are removed from their normal operating places in a machine:
Power supply units
Pumps
Blowers and fans
Motor generators
Similar units as listed above
This practice ensures correct grounding of the units.
What steps should be taken if an electrical accident occurs?
Use caution; do not become a victim yourself.
Switch off power.
Send another person to get medical aid.
What is the purpose of the safety inspection guide?
The purpose of this inspection guide is to assist you in identifying potentially unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service technicians from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non-Lenovo features or options not covered by this inspection guide.
What should be done if unsafe conditions are present?
If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem.
What conditions and safety hazards should be considered?
Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical shock)
Explosive hazards, such as a damaged cathode ray tube (CRT) face or a bulging capacitor
Mechanical hazards, such as loose or missing hardware
How to determine potentially unsafe conditions using a checklist?
To determine whether there are any potentially unsafe conditions, use the following checklist at the beginning of every service task. Begin the checks with the power off, and the power cord disconnected.
1. Check exterior covers for damage (loose, broken, or sharp edges).
2. Power off the computer. Disconnect the power cord.
3. Check the power cord for:
a. A third-wire ground connector is in good condition. Use a meter to measure third-wire ground continuity for 0.1 ohm or less between the external ground pin and the frame ground.
b. The power cord should be the authorized type specified for your computer.
c. Insulation must not be frayed or worn.
4. Check for cracked or bulging batteries.
5. Remove the cover.
6. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo alterations.
7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.
8. Check for worn, frayed, or pinched cables.
9. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered with.
What computer parts are sensitive to electrostatic discharge (ESD)?
Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD).
How can protection against ESD damage be achieved?
Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.
Use product-specific ESD procedures when they exceed the requirements noted here.
Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.
How should ESD-sensitive parts be handled?
Keep the parts in protective packages until they are inserted into the product.
Avoid contact with other people.
Wear a grounded wrist strap against your skin to eliminate static on your body.
Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap.
Use a grounded work mat to provide a static-free work surface. The mat is especially useful when handling ESD-sensitive devices.
Select a grounding system, such as those listed below, to provide protection that meets the specific service requirement.
The use of a grounding system to guard against ESD damage is desirable but not necessary.
Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.
When working on a double-insulated or battery-operated system, use an ESD common ground or reference point. You can use coax or connector-outside shells on these systems.
Use the round ground prong of the ac plug on ac-operated computers.
What must be checked after FRU replacement before powering on the computer?
Before the computer is powered on after FRU replacement, make sure that all screws, springs, and other small parts are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.
How should standby batteries be handled safely?
Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short-circuit it. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery.
How should battery packs be handled safely?
The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrect battery can result in ignition or explosion of the battery.
How should lithium batteries be handled safely?
The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery.
What should be done if LCD fluid comes into contact with eyes or hands?
If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes. Seek medical care if any symptoms from the fluid are present after washing.
How can electric shock be avoided when dealing with the inverter card?
To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card.
What are the risks associated with short-circuited or grounded main batteries?
Though the main batteries have low voltage, a short-circuited or grounded battery can produce enough current to burn personnel or combustible materials.
What steps should be taken before removing an FRU if hot swap is not allowed?
Unless hot swap is allowed for the FRU being replaced, do as follows before removing it: power off the computer, unplug all power cords from electrical outlets, remove the battery pack, and disconnect any interconnecting cables.
Who is authorized to service the computer?
Only certified trained personnel should service the computer.
What precautions should be taken during writing operations (copying, saving, formatting)?
Be extremely careful during such writing operations as copying, saving, or formatting. Drives in the computer that you are servicing sequence might have been altered. If you select an incorrect drive, data or programs might be overwritten.
How can the correct FRU replacement be ensured?
Replace a FRU only with another FRU of the correct model. When you replace a FRU, make sure that the model of the machine and the FRU part number are correct by referring to the FRU parts list.
When should an FRU be replaced?
A FRU should not be replaced because of a single, unreproducible failure. Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as cosmic radiation, electrostatic discharge, or software errors. Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the error log and run the test again. If the error does not recur, do not replace the FRU.
What information must be included when returning an FRU?
When you return a FRU, you must include the following information in the parts exchange form or parts return form that you attach to it:
1. Name and phone number of service technician
2. Date of service
3. Date on which the machine failed
4. Date of purchase
5. Failure symptoms, error codes appearing on the display, and beep symptoms
6. Procedure index and page number in which the failing FRU was detected
7. Failing FRU name and part number
8. Machine type, model number, and serial number
9. Customer’s name and address
What are the different CRU (Customer Replaceable Unit) types?
The following table lists CRUs and their types:
| CRU | Type |
|---|---|
| ac power adapter | self-service |
| Power cord | self-service |
What is the purpose of the exploded illustrations in the manual?
The exploded illustrations help Lenovo service technicians identify FRUs or CRUs that they may need to replace when servicing a customer’s computer.
What are the FRU (CRU) categories for the computer system?
The following table lists FRU (CRU) categories for the computer system:
| No. | FRU (CRU) category |
|---|---|
| 1 | LCD module Note: The LCD module as a whole is not an FRU, but it contains FRUs as its components. |
| 2 | DC-in bracket |
| 3 | 2242 Solid-state drive (SSD)* |
| 4 | 2280 Solid-state drive (SSD)* |
| 5 | System board |
| 6 | Type-C bracket |
| 7 | Wi-Fi mylar |
| 8 | Wi-Fi card |
| 9 | Memory modules |
| 10 | DIMM shielding |
| 11 | Lower case |
| 12 | Speakers |
| 13 | Battery pack |
| 14 | CMOS battery |
| 15 | Thermal module |
| 16 | Touchpad bracket |
| 17 | Upper case (with keyboard) |
| 18 | Strip cover |
| 19 | Hinge caps |
| a | Screw kit |
| b | Power cord |
| c | ac power adapter |
* for selected models
What are the FRU (CRU) categories for the LCD module?
The following table lists FRU (CRU) categories for the LCD module:
| No. | FRU (CRU) category |
|---|---|
| 1 | LCD panel |
| 2 | Camera board |
| 3 | Camera cable |
| 4 | EDP cable |
| 5 | Removable tape |
| 6 | LCD cover |
| 7 | Hinges |
| 8 | LCD bezel |
What service tools are applicable for servicing the product models?
The following table lists tools for servicing Lenovo computers. Tools with a cross mark are needed for serving the product models as described by this publication. Prepare them before you service the product.
| Service tool and consumable | Model applicability |
|---|---|
| Screw driver (Phillips head) (PH1/PH0) | X |
| Screw driver (Torx head) (T5) | |
| Screw driver (Torx head) (T30) | |
| Pry tool 1 | X |
| Tweezers (conductive) | X |
| Tweezers (isolated) | |
| Suction cup | |
| Hexagonal socket | |
| Thermal interface materials | X |
| Acetate tape | X |
| Polyamide tape | |
| Mylar tape | |
| Electrical tape | |
| Double-sided tape | |
| Conductive tape | |
| Eraser | |
| Heat gun | |
| Brown brush |
T30 screw drivers are used to service the new Intel Xeon CPUs.
Hexagonal sockets are used to remove antenna connectors.
What general guidelines should be observed when removing or replacing an FRU?
1. Do not try to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts.
2. Begin by removing any FRUs that have to be removed before replacing the failing FRU. Any such FRUs are listed at the beginning of each FRU replacement procedure. Remove them in the order in which they are listed.
3. Follow the correct sequence in the steps for removing a FRU, as shown in the illustrations by the numbers in square callouts.
4. When removing a FRU, move it in the direction as shown by the arrow in the illustration.
5. To install a new FRU in place, perform the removal procedure in reverse and follow any notes that pertain to replacement.
6. When replacing a FRU, carefully retain and reuse all screws.
7. When replacing the base cover, reapply all labels that come with the replacement base cover. If some original labels are not included with the replacement base cover, peel them off from the original base cover and paste them on the replacement base cover.
What must be done before removing any FRU or CRU?
Shut down the computer and unplug all power cords from electrical outlets.
What precautions should be taken when handling the system board due to ESD sensitivity?
The system board is sensitive to and can be damaged by ESD. Before touching it, establish personal grounding by touching a ground point with one hand or by using an ESD strap (P/N 6405959).
What are thermal interface materials and how should they be handled?
Thermal interface materials are typically applied between a heat sink and a CPU (and/or GPU) die to enhance the heat transfer capability of the heat sink. If thermal interface materials are exposed during computer servicing, such as when replacing the heat sink or system board, it is important to handle the thermal interface materials properly.
You need to completely remove the old thermal interface materials from the CPU and/or GPU die.
You need to apply new thermal interface materials onto the heat sink according to the type, quantity, and application areas specified in this publication.
What are the specifications for thermal interface materials application on the thermal module for LOQ 15AHP9 and LOQ 15ARP9?
The following table provides information on the type, quantity, and application areas for LOQ 15AHP9 and LOQ 15ARP9:
| Area | Type | Weight | Size |
|---|---|---|---|
| a | 7958-SP | 0.45 g (a+b) | 16.15 mm x 15.7 mm x 0.25 mm |
| b | 7958-SP | 18.24 mm x 13.34 mm x 0.25 mm |
What are the specifications for thermal interface materials application on the thermal module for LOQ 15IAX9 and LOQ 15IRX9?
The following table provides information on the type, quantity, and application areas for LOQ 15IAX9 and LOQ 15IRX9:
| Area | Type | Weight | Size |
|---|---|---|---|
| a | 7958-SP | 0.51 g (a+b) | 15.98 mm x 15.72 mm x 0.25 mm |
| b | 7958-SP | 24.89 mm x 12.28 mm x 0.25 mm |
What are the specifications for thermal interface materials application on the thermal module for LOQ 15IAX9I?
The following table provides information on the type, quantity, and application areas for LOQ 15IAX9I:
| Area | Type | Weight | Size |
|---|---|---|---|
| a | 7958-SP | 0.45 g (a+b) | 26.44 mm x 12.22 mm x 0.25 mm |
| b | 7958-SP | 21.89 mm x 11.7 mm x 0.25 mm |
What should be ensured before servicing the computer?
Make sure the computer has been shut down before servicing the computer.
How to remove the lower case?
Step 1. Place the computer upside down on a flat surface.
Step 2. Remove ten screws, pry up the latches, and then remove the lower case.
The screw specifications for removing the lower case are:
| Screw specifications | Number of screws | Torque |
|---|---|---|
| M2 x L4.5 | 4 | 1.85 ± 0.15 kgf-cm |
| M2 x L8.5 | 6 | 1.85 ± 0.15 kgf-cm |
What FRUs/CRUs must be removed before removing the battery pack?
Remove the lower case.
How to remove the battery pack?
Step 1. Disconnect the battery pack cable from the system board, remove six screws, and remove the battery pack.
Use your fingernail to pull the connector to unplug it. Do not pull the cable.
The computer may be equipped with 60Wh or 80Wh batteries, corresponding to different numbers of screws.
The screw specifications for removing the battery pack are:
| Screw specifications (for 80Wh battery) | Number of screws | Torque |
|---|---|---|
| M2 x L4 | 6 | 1.85 ± 0.15 kgf-cm |
| Screw specifications (for 60Wh battery) | Number of screws | Torque |
|---|---|---|
| M2 x L4 | 4 | 1.85 ± 0.15 kgf-cm |
What FRUs/CRUs must be removed before removing the touchpad bracket?
Remove the lower case.
Remove the battery pack.
How to remove the touchpad bracket?
Step 1. Remove two screws and remove the touchpad bracket.
The screw specifications for removing the touchpad bracket are:
| Screw specifications | Number of screws | Torque |
|---|---|---|
| M2 x L3 | 2 | 1.85 ± 0.15 kgf-cm |
What FRUs/CRUs must be removed before removing the speakers?
Remove the lower case.
Remove the battery pack.
How to remove the speakers?
Step 1. Disconnect the speakers cable from the system board, remove the speakers cable from the cable guide, and remove the speakers.
What FRUs/CRUs must be removed before removing the DC-in bracket?
Remove the lower case.
How to remove the DC-in bracket?
Step 1. Disconnect the battery pack cable from the system board, remove two screws, and remove the DC-in bracket.
Use your fingernail to pull the connector to unplug it. Do not pull the cable.
The screw specifications for removing the DC-in bracket are:
| Screw specifications | Number of screws | Torque |
|---|---|---|
| M2 x L4 | 2 | 1.85 ± 0.15 kgf-cm |
What FRUs/CRUs must be removed before removing the Wi-Fi card?
Remove the lower case.
How to remove the Wi-Fi card?
Step 1. Disconnect the battery pack cable from the system board and remove the Wi-Fi mylar.
Use your fingernail to pull the connector to unplug it. Do not pull the cable.
Step 2. Disconnect the antennas from Wi-Fi card, remove one screw, and remove the Wi-Fi card.
The screw specifications for removing the Wi-Fi card are:
| Screw specifications | Number of screws | Torque |
|---|---|---|
| M2 x L3 | 1 | 1.85 ± 0.15 kgf-cm |
What FRUs/CRUs must be removed before removing the 2242 solid-state drive (for selected models)?
Remove the lower case.
How to remove the 2242 solid-state drive (for selected models)?
Step 1. Disconnect the battery pack cable from the system board, remove one screw, and remove the 2242 solid-state drive by pulling it away from the slot.
Use your fingernail to pull the connector to unplug it. Do not pull the cable.
The screw specifications for removing the 2242 solid-state drive are:
| Screw specifications | Number of screws | Torque |
|---|---|---|
| M2 x L3 | 1 | 1.85 ± 0.15 kgf-cm |
The product supports up to two solid-state drives. Remove both if needed.
What FRUs/CRUs must be removed before removing the 2280 solid-state drive (for selected models)?
Remove the lower case.
How to remove the 2280 solid-state drive (for selected models)?
Step 1. Disconnect the battery pack cable from the system board, remove one screw, and remove the 2280 solid-state drive by pulling it away from the slot.
Use your fingernail to pull the connector to unplug it. Do not pull the cable.
What FRUs/CRUs must be removed before removing the CMOS battery?
Remove the lower case.
How to remove the CMOS battery?
Step 1. Disconnect the battery pack cable from the system board.
Use your fingernail to pull the connector to unplug it. Do not pull the cable.
Step 2. Disconnect the CMOS battery cable from the system board and remove the CMOS battery.
Where is key product information stored on the PC?
Some key product information and settings are stored in the ROMs of the PC’s system board.
What information needs to be written to a replacement system board?
After replacing a system board for a Lenovo PC, you need to use a Lenovo-provided software tool to write key information, including machine type model (MTM), serial number (SN), and product name, as well as settings such as keyboard language to the replacement system board.
How do users write key product information to a replacement system board?
Take extra caution when entering the MTM and SN and when selecting the product name and keyboard language. Carefully verify these details before committing the writing action. Once recorded on the system board, they cannot be altered. Consult Lenovo service if you are uncertain about the MTM, SN, and product name for your PC.
Step 1. Connect the ac power adapter and turn on the computer.
Step 2. Double-click the WinMBDWizard.exe file to run the tool.
Step 3. Follow the on-screen instructions to input the MTM and SN, select the product name and keyboard language of the computer.
Step 4. Click Start Update to update the product information.
Step 5. Click Yes in the confirmation window to continue the update.
Step 6. Click Finish to close the tool.
Step 7. Click Yes in the confirmation window to restart the computer and apply the configuration on the system board.
Do not turn off the computer or disconnect the computer from ac power during the whole process.
What FRUs/CRUs must be removed before removing the Type-C bracket?
Remove the lower case.
Remove the DC-in bracket.
Remove the Wi-Fi card.
Remove the 2242 solid-state drive (for selected models).
Remove the 2280 solid-state drive (for selected models).
Remove the DIMM shielding.
Remove the memory module.
Remove the strip cover.
Remove the thermal module.
Remove the system board.
How to remove the Type-C bracket?
Step 1. Remove the Type-C bracket.
What FRUs/CRUs must be removed before removing the LCD module?
Remove the lower case.
Remove the DC-in bracket.
Remove the Wi-Fi card.
Remove the 2242 solid-state drive (for selected models).
Remove the 2280 solid-state drive (for selected models).
Remove the DIMM shielding.
Remove the memory module.
Remove the strip cover.
Remove the thermal module.
Remove the system board.
How to remove the LCD module?
Step 1. Remove two screws and remove the antennas from the cable guide.
The screw specifications for removing these screws are:
| Screw specifications | Number of screws | Torque |
|---|---|---|
| M2 x L3 | 2 | 1.85 ± 0.15 kgf-cm |
Step 2. Remove four screws, remove the EDP cable, camera cable, and antennas from the cable guide, and remove the LCD module.
The screw specifications for removing these screws are:
| Screw specifications | Number of screws | Torque |
|---|---|---|
| M2.5 x L3.5 | 4 | 3 ± 0.3 kgf-cm |
What FRUs/CRUs must be removed before removing the upper case (with keyboard)?
Remove the lower case.
Remove the battery pack.
Remove the touchpad bracket.
Remove the speakers.
Remove the DC-in bracket.
Remove the Wi-Fi card.
Remove the 2242 solid-state drive (for selected models).
Remove the 2280 solid-state drive (for selected models).
Remove the CMOS battery.
Remove the DIMM shielding.
Remove the memory module.
Remove the strip cover.
Remove the thermal module.
Remove the system board.
Remove the Type-C bracket.
Remove the LCD module.
What must be done before disassembling the LCD module?
Before disassembling the LCD module, make sure it has been detached from the upper case assembly.
What FRUs/CRUs must be removed before removing the LCD bezel?
Remove the lower case.
Remove the LCD module.
How to remove the LCD bezel?
Step 1. Remove the LCD bezel.
What FRUs/CRUs must be removed before removing the LCD panel?
Remove the lower case.
Remove the LCD module.
Remove the LCD bezel.
How to remove the LCD panel?
Step 1. Pull out two pieces of the removable tape. Then, turn over the LCD panel.
Step 2. Peel back the mylar, disconnect the EDP cable, and remove the LCD panel.
What FRUs/CRUs must be removed before removing the camera board?
Remove the lower case.
Remove the LCD module.
Remove the LCD bezel.
Remove the LCD panel.
How to remove the camera board?
Step 1. Disconnect the camera cable from the camera and remove the camera board.
What FRUs/CRUs must be removed before removing the camera cable?
Remove the lower case.
Remove the LCD module.
Remove the LCD bezel.
Remove the LCD panel.
How to remove the camera cable?
Step 1. Disconnect the camera cable from the camera board and remove the camera cable.
What FRUs/CRUs must be removed before removing the EDP cable?
Remove the lower case.
Remove the LCD module.
Remove the LCD bezel.
Remove the LCD panel.
How to remove the EDP cable?
Step 1. Remove the EDP cable.
What FRUs/CRUs must be removed before removing the hinges?
Remove the lower case.
Remove the LCD module.
Remove the LCD bezel.
Remove the LCD panel.
How to remove the hinges?
Step 1. Remove six screws and remove the hinges.
The screw specifications for removing the hinges are:
| Screw specifications | Number of screws | Torque |
|---|---|---|
| M2.5 x L2 | 6 | 3 ± 0.3 kgf-cm |
What FRUs/CRUs must be removed before removing the hinge caps?
Remove the lower case.
Remove the LCD module.
Remove the LCD bezel.
Remove the LCD panel.
Remove the hinges.
How to remove the hinge caps?
Step 1. Remove two screws and remove the hinge caps.
The screw specifications for removing the hinge caps are:
| Screw specifications | Number of screws | Torque |
|---|---|---|
| M2 x L3 | 2 | 1.85 ± 0.15 kgf-cm |
What FRUs/CRUs must be removed before removing the LCD cover?
Remove the lower case.
Remove the LCD module.
Remove the LCD bezel.
Remove the LCD panel.
Remove the camera board.
Remove the camera cable.
Remove the EDP cable.
Remove the hinges.
Remove the hinge caps.
How should labels be applied to a replacement base cover?
Labels attached to the base cover are country/region specific. Make sure to apply the appropriate labels to the replacement base cover.
The following table lists all base cover labels and their dimensions:
| Label | Label description | Applied country/region | Label dimensions |
|---|---|---|---|
| 1 | Rating label | India | 33 mm x 24 mm |
| China | 33 mm x 24 mm | ||
| Worldwide | 86 mm x 24 mm | ||
| 2 | Print rating label | All | 43 mm x 24 mm |
| WL&BT | 32 mm x 10 mm | ||
| TW | 70 mm x 10 mm | ||
| Malaysia | 8 mm x 8 mm | ||
| Japan | 57 mm x 27 mm | ||
| Korea | 50 mm x 43 mm | ||
| Brazil | 16.5 mm x 15 mm | ||
| 3 | Country/region label | Israel/US/CA/TW | 32 mm x 10 mm |
| South Africa | 20 mm x 10 mm | ||
| Malaysia/Indonesia | 15 mm x 10 mm | ||
| Vietnam | 10 mm x 9 mm | ||
| Belarus | 40 mm x 8 mm | ||
| India (BIS) | 22 mm x 30 mm | ||
| 4 | CO2 offset label | All | 18 mm x 18 mm |
| 5 | OS label | All | 16 mm x 22.5 mm |