Lenovo Flex 20 All-in-One IdeaCentre- Manuals

Chapter 2. Safety information This chapter contains the safety information that you need to be familiar with before servicing a computer. General safety Follow these rules to ensure general safety: • Keep the areas around the computer clear and clean during and after maintenance. • When lifting any ...

• Keep the parts in protective packages until they are inserted into the product. • Avoid contact with other people while handling the part. • 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 a...

To Connect To Disconnect 1. Turn everything OFF. 2. First, attach all cables to devices. 3. Attach signal cables to connectors. 4. Attach power cords to outlet. 5. Turn device ON. 1. Turn everything OFF. 2. First, remove power cords from outlets. 3. Remove signal cables from connectors. 4. Remove al...

Chapter 3. General information This chapter provides general information that applies to all computer models covered by this manual. Specifications This section lists the physical specifications for your computer. This section lists the physical specifications for your computer. Type Lenovo Flex 20 ...

Chapter 4. General Checkout Attention: The drives in the computer you are servicing might have been rearranged or the drive startup sequence may have been changed. Be extremely careful during write operations such as copying, saving, orformatting. Data or programs can be overwritten if you select an...

Chapter 5. Using the Setup Utility The Setup Utility program is used to view and change the configuration settings of your computer, regardlessof which operating system you are using. However, the operating system settings might override any similarsettings in the Setup Utility program. Starting the...

Power-On Password When a Power-On Password is set, you cannot start the Lenovo BIOS Setup Utility program until a validpassword is typed from the keyboard. Setting, changing, or deleting a Power-On Password Note: A password can be any combination of letters and numbers up to 16 characters (a-z and 0...

SATA Mode Select Disabled/IDE/AHCI mode. Device driver support is required for AHCI or RAID . Depending on how the hard disk drive image was installed, changing this setting mayprevent the system from booting. Onboard Audio Controller Select whether to enable or disable the Onboard Audio Controller ...

Chapter 6. Symptom-to-FRU Index The Symptom-to-FRU index lists error symptoms and possible causes. The most likely cause is listed first.Always begin with Chapter 4, “General Checkout,” on page 11. This index can also be used to help youdecide which FRUs to have available when servicing a computer. ...

POST error codes Each time you turn the computer on, it performs a series of tests to check that the system is operatingcorrectly and that certain options are set. This series of tests is called the Power-On Self-Test , or POST . POST does the following: • Checks some basic motherboard operations • ...

Chapter 7. Locating connectors, controls and components This section provides illustrations to help locate the various connectors, controls and components of thecomputer. Front view The following illustration shows the location of controls and components on the front of the computer. Attention: Be c...

Left and right view The following illustration shows the location of connectors, controls and components on the left and rightside of the computer. 1 2 3 1. Combo audio jack 3. Power connector 2. USB 3.0 connectors (2) 22 Lenovo Flex 20 All-In-One PC Hardware Maintenance Manual

Rear view The following illustration shows the location of connectors and components on the rear of the computer. 1 2 3 4 5 6 6 1. Power button 4. Screen rotation lock button 2. Volume up 5. Stand lock 3. Volume down 6. Air vents Chapter 7 . Locating connectors, controls and components 23

Chapter 8. Replacing hardware Attention: Do not remove the computer cover or attempt any repair before reading the “Important safety information” in the Safety and Warranty Guide that was included with your computer. To obtain copies of the Safety and WarrantyGuide, go to the Support Web site at: ht...

Replacing the keyboard and mouse To replace the keyboard and mouse: Step 1. Remove any media (disks, CDs, DVDs or memory cards) from the drives, shut down the operatingsystem, and turn off the computer and all attached devices. Step 2. Unplug all power cords from electrical outlets. Step 3. Disconne...

Removing the rear cover Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the rear cover. Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Lenovo recommends that you use a blanket, towel, or other soft cloth to p...

Step 6. Use a flat head screw driver, put the head of screwdriver into the slot in between the panel and therear cover as shown. Then prise the rear cover away from the panel. 3 Step 7. Disconnect the transform cable from the connector, and separate the rear cover and the panel. 4 Step 8. To reattac...

Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the drives, shut down the operatingsystem, and turn off the computer and all attached devices. Step 2. Unplug all power cords from electrical outlets. Step 3. Disconnect all cables attached to the computer. This includes power cords, ...

b. Slide the new hard disk drive into the hard disk drive bay. c. Secure the new hard disk drive to the rear cover with the 4 screws. d. Connect the data and power cables to the new hard disk drive. Step 11. Reattach the rear cover and secure it with the screws. Replacing the system fan Note: Turn o...

Step 9. Reattach the rear cover and secure it with the screws. Replacing the heat-sink Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the rear cover. To replace the heat-sink: Step 1. Remove any media (disks, CDs, DVDs or memory cards) from the drives, shut d...

Step 8. Reattach the rear cover and secure it with the screws. Replacing a memory module Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the rear cover. To replace a memory module: Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the driv...

Step 2. Unplug all power cords from electrical outlets. Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)cables, and any other cables that are connected to the computer. Refer to “Left and right view”and “Rear view” for help with locating the vario...

Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)cables, and any other cables that are connected to the computer. Refer to “Left and right view”and “Rear view” for help with locating the various connectors. Step 4. Remove the rear cover. Refer to &...

Step 5. Disconnect the speaker cable from the connector on motherboard. Step 6. Lift up speaker system to remove it. 1 Step 7. To install the new speaker system: a. Line up the new speaker system with the mounting rubber screws. b. Connect the new speaker cable to the connector on the motherboard. S...

Step 5. Disconnect the Windows function data cable from the connector on the motherboard. Step 6. Remove the two screws that secure the Windows function board to the rear cover 1 and lift up the Windows function board to remove it. 2 Step 7. To install the Windows function board: a. Line up the hole...

Step 7. Remove the heat-sink. Refer to “Replacing the heat-sink”. Step 8. Remove the Wi-Fi card. Refer to “Replacing the Wi-Fi card”. Step 9. Remove all the cables connected to the motherboard. Step 10. Remove the four screws that secure the motherboard to the rear cover 1 and lift it up to remove i...

Step 3. Disconnect all cables attached to the computer. This includes power cords, input/output (I/O)cables, and any other cables that are connected to the computer. Refer to “Left and right view”and “Rear view” for help with locating the various connectors. Step 4. Remove the rear cover. Refer to “...

Step 9. Reattach the rear cover and secure it with the screws. Replacing the LED panel module Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the rear cover. To replace the LED panel module: Step 1. Remove any media (disks, CDs, DVDs, or memory cards) from the...

Chapter 10. Additional Service Information This chapter provides additional information that the service representative might find helpful. Power management Power management reduces the power consumption of certain components of the computer such as thesystem power supply, processor, hard disk drive...