Lenovo IdeaCentre B550 All-in-One- User Manual

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: • Observe good housekeeping in the area of the machines during and after maintenance. • When lifting a...

• 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 and retains a charge even when you are wearing a wrist strap. • Use the black side ...

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 outlet. 3. Remove signal cables from connectors. 4. Remove all...

Chapter 3. General information This chapter provides general information that applies to all machine types supported by this publication. Specifications This section lists the physical specifications for your computer. This section lists the physical specifications for your computer. Type IdeaCentre...

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

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...

To set a Power-On Password, do the following: 1. Start the Lenovo BIOS Setup Utility program (See ”Starting the Lenovo BIOS Setup Utility program” on page 13.) 2. From the Security menu, select Set Power-On Password and press the Enter key. 3. The password dialog box will be displayed. Type the pass...

USB Setup press the Enter key, and then select USB Functions . ATA Device Setup press the Enter key. Select Configure SATA as , press the Enter key and then select SATA mode. Audio Setup press the Enter key, and then select Onboard Audio Controller . Network Setup press the Enter key, then select On...

b. If you have changed these settings and want to return to the default settings, select Load Optimal Defaults from the menu. Exiting the Lenovo BIOS Setup Utility program After you finish viewing or changing settings, press the Esc key to return to the Lenovo BIOS Setup Utility program main menu. Y...

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 system-board operations •...

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

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 4 5 6 7 1. Optical drive 5. Microphone connector 2. Power button 6. USB 3.0 connector 3. USB 3.0 connector 7. Memory card reader 4. Headphone conn...

Rear view The following illustration shows the location of connectors and components on the rear of the computer. 7 8 1 2 3 5 4 6 1. TV tuner port (selected models only) 5. USB 2.0 connectors (2) 2. HDMI-in connector (selected models only) 6. Ethernet connector 3. HDMI-out connector 7. Power connect...

Hardware components The following illustration shows the components that make up your computer. 1 2 3 7 8 9 1 0 1 1 1 2 1 4 1 3 1 5 1 6 1 7 1 8 1 9 2 0 5 6 4 1. Heat-sink 11. Speaker system 2. System fan 12. Front bezel 3. Hard disk drive 13. LED panel 4. EMI cover 14. Chassis 5. Optical disk drive ...

Identifying parts on the B550 motherboard The motherboard (sometimes called the planar or system board) is the main circuit board in your computer.It provides basic computing functions and supports a variety of devices that are factory-installed or thatyou can install later. The following illustrati...

Identifying parts on the B555 motherboard The motherboard (sometimes called the planar or system board) is the main circuit board in your computer.It provides basic computing functions and supports a variety of devices that are factory-installed or thatyou can install later. The following illustrati...

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 Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. 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 comp...

Step 3. Disconnect the failing power cord and adapter from the computer. Step 4. Connect the new power cord to the same connector as shown. Removing the computer cover Attention: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. Note: It may be helpful to p...

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 2 cover pieces by slid...

Step 4. Remove the two screws that secure the computer stand to the chassis, then slide the computerstand out as shown. 1 2 3 2 3 1 Step 5. To reinstall the computer stand: a. Line up the computer stand with the mounting slots in the chassis and slide it back intoposition. b. Secure the stand to the...

Step 5. Push out the latches on both sides of the memory socket to release the memory module. Gentlypull the memory module upward to remove it from its socket. Step 6. Align the new memory module with the memory socket, then insert it and push down on the topedge. Make sure the latches lock the memo...

Step 5. Push then slide the hard disk drive and bracket upward and out of the chassis as shown. 1 2 2 1 Step 6. Push the pins and release the hard disk drive from the bracket. Step 7. Install the new hard disk drive as follows: a. Line up the new hard disk drive with the bracket and secure it with t...

Step 9. Separate the cover from the defective optical drive as shown. 1 2 3 Step 10. Install the new optical drive as follows: a. Align the new optical drive with the cover, and then push the cover back into position. b. Screw the metal bracket back onto the new optical drive. c. Slide the new optic...

Step 8. Lift up the middle cover upward to remove it. Step 9. To reattach the middle cover: a. Line up the middle cover with chassis, then place it back in position. b. Secure the middle cover to the chassis with eight screws. Step 10. Reattach the optical drive, computer stand and the rear cover. R...

Step 8. Remove the screw that secures the converter board to the chassis and then lift up the converter toremove it. Step 9. Disconnect the 2 cables from the converter board. Step 10. To install the new converter board: a. Connect the 2 cables to the new converter board. b. Line up the new converter...

Step 8. Remove the seven screws that secure the EMI cover to the chassis. Step 9. Lift up the EMI cover up to remove it. Step 10. To reinstall the EMI cover: a. Line up the EMI cover with the mounting holes on the chassis and secure it with the sevenscrews. Step 11. Reattach the middle cover, optica...

Step 9. Disconnect the speaker cable from the connectors on motherboard. Step 10. Detach the speaker system from the rubber screws. Step 11. To install the new speaker system: a. Secure the new speaker system to the chassis with the rubber screws. b. Connect the new speaker cable to motherboard. Ste...

Step 9. Disconnect the antenna cables from the Wi-Fi card. 1 Step 10. Remove the screw that secures the Wi-Fi card to the motherboard. 2 Step 11. Lift up the Wi-Fi card upward to remove it from the socket. 3 2 1 3 Step 12. To install the new Wi-Fi card: a. Insert the new Wi-Fi card to the socket and...

Step 9. Disconnect the antenna cable(s) from the TV-Tuner card. 1 Step 10. Remove the screw that secures the TV-Tuner card to the motherboard. 2 Step 11. Pull the TV-Tuner card upward to remove it from the card port on the motherboard. 3 1 3 2 Step 12. To install the new TV-Tuner card: a. Insert the...

Step 9. Remove the two screws that secure the power supply connector to the metal bracket. Step 10. Disconnect the two power cables from the motherboard. Step 11. Remove the three screws that secure the power supply to the chassis, and then lift up the power supply as shown. Step 12. To install the ...

Step 9. Disconnect the fan power cable from the motherboard. Step 10. Remove the two screws that secure the system fan to the heat-sink and lift the system fan up to remove it. Step 11. To install the new system fan: a. Place the new system fan into position, and secure it with the two screws. b. Co...

Step 10. Remove the 8 screws that secure the heat-sink to the motherboard, and then lift up the heat-sink to remove it. Step 11. To install the new heat-sink: a. Line up the new heat-sink with mounting holes on motherboard and secure it with the 8 screws. Step 12. Reattach the system fan, EMI cover,...

Step 15. Lower the microprocessor straight down into its socket on the motherboard. Step 16. To secure the microprocessor in the socket, close the microprocessor retainer and lock it into position with the small handle. Step 17. Use a thermal grease syringe to place 5 drops of grease on the top of t...

Step 8. Remove the six screws that secures the rear deco to the chassis. Step 9. Slide up the rear deco to remove it from the chassis. Step 10. To install the rear deco: a. Line the rear deco with the chassis, then slide it back into position. b. Secure the rear deco to the chassis with the six scre...

Step 9. Remove the 2 screws that secure the camera to the front bezel. Step 10. Disconnect the data cable from the camera. Step 11. To install the new camera: a. Connect the data cable to the new camera. b. Line up the new camera holes with the mounting holes on the front bezel and secure it with th...

Replacing the LED panel module Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the 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...

Chapter 10. General information This chapter provides general information that applies to all machine types supported by this publication. Additional Service Information This chapter provides additional information that the service representative might find helpful. Power management Power management...