LENOVO IDEAPAD SLIM 3 15Q8X10 (01) PDF DOCUMENT

Follow these rules to ensure general safety:

• Observe good housekeeping in the area of the machines during and after maintenance.

• When lifting any heavy object:

1. Make sure that you can stand safely without slipping.

2. Distribute the weight of the object equally between your feet.

3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.

4. 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.

• 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 people 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.

• 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.

• 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.

• 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.

Observe the following rules 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.

• 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

– Removing or installing main units

• 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.

• If you need to work on a machine that has exposed electrical circuits, observe the following precautions:

– 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. An electrical shock can occur only when there is a complete circuit. By observing the above rule, you may prevent a current from passing through your body.

– 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.

• Observe the special safety precautions when you work with very high voltages.

• Regularly inspect and maintain your electrical hand tools for safe operational condition.

• Do not use worn or broken tools and testers.

• Never assume that power has been disconnected from a circuit. First, check that it has been powered off.

• 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.

• Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage.

• 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.

• If an electrical accident occurs: Use caution; do not become a victim yourself. Switch off power. Send another person to get medical aid.

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.

Checklist:

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 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.

Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). 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.

Notes:

1. Use product-specific ESD procedures when they exceed the requirements noted here.

2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.

When handling ESD-sensitive parts:

• 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.

– 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.

Please be aware of the following DANGER notices:

• 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.

• 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.

• 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 pack 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.

• 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.

• 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.

• To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card.

• Though the main batteries have low voltage, a short-circuited or grounded battery can produce enough current to burn personnel or combustible materials.

• 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.

Before you go to the checkout instructions, ensure that you read the following important notes:

• It is recommended that only certified trained personnel perform service on the computer. For customers electing to repair their own machines, please follow all instructions carefully.

• Before replacing any FRU, read the entire page on removing and replacing FRUs.

• Be extremely careful during such write 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.

• Replace an FRU only with another FRU of the correct model. When you replace an FRU, make sure that the model of the machine and the FRU part number are correct by referring to the FRU parts list.

• An 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 an FRU only when a problem recurs. If you suspect that an FRU is defective, clear the error log and run the test again. If the error does not recur, do not replace the FRU.

• Be careful not to replace a nondefective 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

The following table lists tools for servicing your computer. Tools with a cross mark (X) are needed for this model.

When removing or replacing a FRU, ensure that you observe the following general guidelines:

1. It is recommended that only certified trained personnel perform service on the computer. For customers electing to repair their own machines, please follow all instructions carefully.

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, peal them off from the original base cover and paste them on the replacement base cover.

DANGER: Before removing any FRU or CRU, shut down the computer, unplug all power cords from electrical outlets, and wait about ten minutes to let the computer cool down.

Attention: After replacing a FRU, do not turn on the computer until you have ensured that all screws, springs, and other small parts are in place and none are loose inside the computer. Verify this by shaking the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.

Attention: 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.

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.

The table below provides information on the type and quantity of thermal interface materials, as well as the specific areas on the heat sink where these materials should be applied.

Make sure the computer has been shut down before servicing the computer.

Step 1. Place the computer upside down on a flat surface.

Step 2. Remove seven screws.

Step 3. Pry up the latches and then remove the lower case.

Make sure the lower case has been removed.

Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Step 2. Disassemble the battery connector. Remove two screws and then remove the battery pack.

Step 3. Remove the battery pack cable from battery connector.

Make sure the lower case and battery pack have been removed.

Step 1. Remove the touchpad board cable from the system board and the touchpad board.

Make sure the lower case has been removed.

Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Step 2. Remove two screws and then remove two SSDs by pulling them away from the slots.

Step 3. Remove two SSD thermal pads.

Make sure the lower case has been removed.

Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Step 2. Detach the main and auxiliary antenna cable connectors. Remove one screw and then remove the Wi-Fi card by pulling it away from the slot.

Make sure the lower case has been removed.

Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Step 2. Loosen five screws and then remove the heat sink.

Make sure the lower case has been removed.

Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Step 2. Remove one screw and then remove the fingerprint bracket.

Make sure the following have been removed:

• “Remove the lower case”

• “Remove the battery pack”

• “Remove the heat sink”

Step 1. Remove the fingerprint FFC from system board and fingerprint board.

Make sure the following have been removed:

• “Remove the lower case”

• “Remove the heat sink”

Step 1. Remove the speaker cable tape, disconnect the speaker cable from the system board and then remove the speaker.

Make sure the lower case has been removed.

Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Step 2. Disconnect the fan cable from the system board and then release cables from the cable guide.

Step 3. Remove three screws and then remove the fan.

Make sure the lower case has been removed.

Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernails to pull the connector to unplug it. Do not pull the cable.

Step 2. Disconnect the EDP cable from the system board.

Step 3. Rotate the LCD unit to an angle of more than 90 degrees and place the computer on a flat surface as shown. Remove five screws and then remove the LCD module.

Make sure the lower case has been removed.

Step 1. Disconnect the battery pack cable from the system board. Attention: Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Step 2. Remove two screws and then flip the hinge.

Step 3. Disconnect the I/O board cable from the I/O board. Remove one screw and then remove the I/O board.

Make sure the following FRUs (or CRUs) have been removed:

• “Remove the lower case”

• “Remove the battery pack”

• “Remove the solid-state drive (SSD)”

• “Remove the Wi-Fi card”

• “Remove the heat sink”

• “Remove the fan”

Step 1. Remove three screws and then flip the hinge.

Step 2. Disconnect all cables connected to the system board, and remove I/O board cable from the I/O board.

Step 3. Remove six screws and then remove the system board.

Step 4. Remove the I/O board cable from the system board.

Attention: 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. Download the tool package and 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.

Note: Do not turn off the computer or disconnect the computer from ac power during the whole process.

Make sure the following FRUs (or CRUs) have been removed:

• “Remove the lower case”

• “Remove the battery pack”

• “Remove the touchpad board cable”

• “Remove the solid-state drive (SSD)”

• “Remove the Wi-Fi card”

• “Remove the heat sink”

• “Remove the fingerprint bracket”

• “Remove the fingerprint FFC”

• “Remove the speaker”

• “Remove the fan”

• “Remove the LCD module”

• “Remove the I/O board”

• “Remove the system board”

The LCD module as a whole is a FRU, and it contains FRUs as its components. Before disassembling the LCD module, make sure it has been detached from the upper case.

Note: For an OLED panel, the LCD module is a FRU and it cannot be disassembled.

Make sure the LCD module has been removed from the main body of the laptop.

Step 1. Remove the hinge cover.

Make sure the following have been removed:

• “Remove the LCD module”

• “Remove the hinge cover”

Step 1. Remove two screws and then remove the LCD bezel.

Make sure the following have been removed:

• “Remove the LCD module”

• “Remove the hinge cover”

• “Remove the LCD bezel”

Step 1. Remove two pieces of removable tapes with tweezers and then turn over the LCD panel.

Note: The removable tapes are not reusable. Replace them when replacing related FRUs.

Step 2. Disconnect the EDP cable from the LCD panel and then remove the LCD panel.

Make sure the following have been removed:

• “Remove the LCD module”

• “Remove the hinge cover”

• “Remove the LCD bezel”

Step 1. Remove six screws and then remove the hinges.

Make sure the following have been removed:

• “Remove the LCD module”

• “Remove the hinge cover”

• “Remove the LCD bezel”

• “Remove the LCD panel”

Step 1. Remove the microphone rubbers.

Make sure the following have been removed:

• “Remove the LCD module”

• “Remove the hinge cover”

• “Remove the LCD bezel”

• “Remove the LCD panel”

Step 1. Disconnect the EDP cable from the camera board and then remove the EDP cable.

Make sure the following have been removed:

• “Remove the LCD module”

• “Remove the hinge cover”

• “Remove the LCD bezel”

• “Remove the LCD panel”

• “Remove the microphone rubbers”

Step 1. Disconnect the EDP cable from the camera board and then remove the camera.

Make sure the following FRUs (CRUs) have been removed:

• “Remove the LCD module”

• “Remove the hinge cover”

• “Remove the LCD bezel”

• “Remove the LCD panel”

• “Remove the hinges”

• “Remove the microphone rubbers”

• “Remove the EDP cable”

• “Remove the camera”

Make sure to apply the appropriate labels to the replacement base cover.