LENOVO LOQ 15IRX9 (01) PDF MANUAL

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 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.

• 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.

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

• 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; Instructions for these precautions are in the safety sections of maintenance information. Use extreme care when measuring 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 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.

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). ESD damage can occur when there is a difference in charge between objects. 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.

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.

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 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.

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

• Only certified trained personnel should service the computer.

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

• 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.

• 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.

• 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.

• Be careful not to replace a nondefective FRU.

The following are not covered under warranty:

• LCD panel cracked from the application of excessive force or from being dropped

• Scratched (cosmetic) parts

• Distortion, deformation, or discoloration of the cosmetic parts

• Plastic parts, latches, pins, or connectors that have been cracked or broken by excessive force

• Damage caused by liquid spilled into the system

• Damage caused by the improper insertion of a personal-computer card (PC card) or the installation of an incompatible card

• Improper disc insertion or use of an external optical drive

• Fuses blown by attachment of a non-supported device

• Forgotten computer password (making the computer unusable)

• Sticky keys caused by spilling a liquid onto the keyboard

• Use of an incorrect ac power adapter on laptop products

The following symptoms might indicate damage caused by non-warranted activities:

• Missing parts might be a symptom of unauthorized service or modification.

• Check for obvious damage to a hard disk drive. If the spindle of a hard disk drive becomes noisy, the hard disk drive might have been dropped or subject to excessive force.

* for selected models

Notes:

• T30 screw drivers are used to service the new Intel Xeon CPUs.

• Hexagonal sockets are used to remove antenna connectors.

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

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.

Before removing any FRU or CRU, shut down the computer and unplug all power cords from electrical outlets.

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.

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).

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.

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 ten screws, pry up the latches, and then remove the lower case.

Make sure the “Remove the lower case” procedure has been completed.

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.

Make sure the “Remove the lower case” and “Remove the battery pack” procedures have been completed.

Step 1. Remove two screws and remove the touchpad bracket.

Make sure the “Remove the lower case” and “Remove the battery pack” procedures have been completed.

Step 1. Disconnect the speakers cable from the system board, remove the speakers cable from the cable guide, and remove the speakers.

Make sure the “Remove the lower case” procedure has been completed.

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.

Make sure the “Remove the lower case” procedure has been completed.

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.

Make sure the “Remove the lower case” procedure has been completed.

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 product supports up to two solid-state drives. Remove both if needed.

Make sure the “Remove the lower case” procedure has been completed.

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.

The product supports up to two solid-state drives. Remove both if needed.

Make sure the “Remove the lower case” procedure has been completed.

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.

Make sure the “Remove the lower case” procedure has been completed.

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. Peel back the mylar.

Step 3. Remove the DIMM shielding.

Make sure the “Remove the lower case” and “Remove the DIMM shielding” procedures have been completed.

Step 1. Open the latches and remove the memory module.

Make sure the “Remove the lower case” procedure has been completed.

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. Remove two screws.

Step 3. Remove the strip cover.

Make sure the “Remove the lower case” and “Remove the strip cover” procedures have been completed.

Step 1. Disconnect the battery pack cable from the system board, peel back the mylar, and disconnect the fan cables from the system board.

Use your fingernail to pull the connector to unplug it. Do not pull the cable.

Step 2. Loosen five heat sink screws in alphabetical order, remove two fan screws, and remove the thermal module.

Make sure the “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”, and “Remove the thermal module” procedures have been completed.

Step 1. Peel off four pieces of mylar.

Step 2. Disconnect the camera cable, speakers cable, keyboard backlight cable, touchpad cable, keyboard cable, and CMOS battery cable from the system board. Then, peel back the mylar that covers the EDP cable.

Step 3. Disconnect the EDP cable from the system board. Then, remove eight screws and remove the system board.

Both solid-state drive screws should be removed.

Some key product information and settings are stored in the ROMs of the PC’s system board. The information and settings are essential for using and servicing a Lenovo PC. 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.

For users, follow the following steps:

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.

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

Make sure the “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”, and “Remove the system board” procedures have been completed.

Step 1. Remove the Type-C bracket.

Make sure the “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”, and “Remove the system board” procedures have been completed.

Step 1. Remove two screws and remove the antennas from the cable guide.

Step 2. Remove four screws, remove the EDP cable, camera cable, and antennas from the cable guide, and remove the LCD module.

Before disassembling the LCD module, make sure it has been detached from the upper case assembly.

Make sure the “Remove the lower case” and “Remove the LCD module” procedures have been completed.

Step 1. Remove the LCD bezel.

Make sure the “Remove the lower case”, “Remove the LCD module”, and “Remove the LCD bezel” procedures have been completed.

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.

Make sure the “Remove the lower case”, “Remove the LCD module”, “Remove the LCD bezel”, and “Remove the LCD panel” procedures have been completed.

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

Make sure the “Remove the lower case”, “Remove the LCD module”, “Remove the LCD bezel”, and “Remove the LCD panel” procedures have been completed.

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

Make sure the “Remove the lower case”, “Remove the LCD module”, “Remove the LCD bezel”, and “Remove the LCD panel” procedures have been completed.

Step 1. Remove the EDP cable.

Make sure the “Remove the lower case”, “Remove the LCD module”, “Remove the LCD bezel”, and “Remove the LCD panel” procedures have been completed.

Step 1. Remove six screws and remove the hinges.

Make sure the “Remove the lower case”, “Remove the LCD module”, “Remove the LCD bezel”, “Remove the LCD panel”, and “Remove the hinges” procedures have been completed.

Step 1. Remove two screws and remove the hinge caps.

Labels attached to the base cover are country/region specific. Make sure to apply the appropriate labels to the replacement base cover.