Lenovo IdeaCentre B345 All-in-One- 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: • 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 8 1. Optical drive 5. Microphone port 2. TV buttons (selected models only) 6. USB connector 3. USB connector 7. Memory card reader 4. Head...

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

Hardware components The following illustration shows the components that make up your computer. 1 2 1 5 6 7 8 9 3 4 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 9 1 8 2 0 2 1 2 2 2 3 2 4 2 5 2 6 1. Rear cover 14. Optical disk drive 2. Computer stand 15. Hardware TV Scale Board 3. Middle cover 16. WLAN card 4. ...

Identifying parts on the 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 illustration sh...

Identifying parts and connectors on the hardware TV scale board The following illustration shows the locations of parts on the analog hardware TV board. 1 2 3 6 4 5 1. LVDS Connector 4. TV Function Connector 2. Converter Connector 5. Fan Connector 3. Mother Board Connector 6. Debug Port The followin...

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 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, ...

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, i...

Attention: 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 protect the computer screenfrom scratches or other damage. To replace a memory module Step 1. Remove any media (disks, CDs, ...

Step 5. Push then slide the hard disk drive and bracket upward and out of the chassis as shown. 1 2 1 2 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. 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 optical drive into t...

Step 9. Slide the middle cover out as shown. (From left to right) 3 3 Step 10. To reattach the middle cover: a. Line up the middle cover with chassis, slide it back in position. b. Push down the middle cover to secure it with the pins. c. Secure the middle cover to the chassis with 8 screws. Step 11...

Step 11. To install the new converter board: a. Line up the new converter board with the mounting pins, and then, secure converter boardwith the pins. b. Connect the two cables to the new converter board. Step 12. Reattach the middle cover, optical drive, computer stand and the rear cover. Removing ...

Step 11. To reinstall the EMI cover: a. Line up the EMI cover with the mounting holes on the chassis and secure it with the twelvescrews. b. Line up the rear I/O cover with the mounting holes on the EMI cover, and then secure it withthe pins. Step 12. Reattach the middle cover, optical drive, comput...

Step 9. Disconnect the data cable from the camera. Step 10. 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 withthe two screws. Step 11. Reattach the middle cover, optical drive, computer...

Step 9. Disconnect the cable from the Bluetooth module. Step 10. To install the new Bluetooth module: a. Connect the cable to the new Bluetooth module. b. Line up the new Bluetooth module with the socket, snap it into position and secure it withthe pins. Step 11. Reattach the middle cover, optical d...

Step 9. Use a flat head screwdriver as a lever to prise out the battery as shown. Step 10. To install the new battery: a. Insert the new battery (CR2032) into the socket with the side labeled “+” facing up, and pressthe battery into place. Step 11. Reattach the EMI cover, middle cover, optical drive...

Step 9. Remove the five screws that secure the system fan to the heat-sink and lift the system fan up toremove it. Step 10. Separate the defective fan from the good one as shown. Step 11. To install the new system fan: a. Line up the new set system fan with mounting holes on the motherboard. b. Secu...

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 protect the computer screen from scratchesor other damage. To remove the power supply: Step 1. Remove any media (disks, CDs, or m...

Replacing the CPU Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. To replace the CPU 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. Ste...

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 5. Remove the computer stand. Refer to “Removing the computer stand”. Step 6. Remove the optical drive. Refer to “Replacing the optical drive”. Step 7. Remove the middle cover. Refer to “Removing the middle cover”. Step 8. Remove the EMI cover. Refer to “Removing the EMI cover”. Step 9. Remove ...

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, ...

Step 4. Remove the rear cover. Refer to “Removing the rear cover”. Step 5. Remove the computer stand. Refer to “Removing the computer stand”. Step 6. Remove the optical drive. Refer to “Replacing the optical drive”. Step 7. Remove the middle cover. Refer to “Removing the middle cover”. Step 8. Remov...

Step 9. Disconnect the speaker cable from the connectors on motherboard. Step 10. Detach the speaker system from the rubber screws as shown. 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 motherb...

Step 9. Disconnect the touch cables from the touch control board. 1 Step 10. Remove the two screws that secure the touch control board to the chassis. 2 Step 11. Lift up the touch control board to remove it. 2 2 1 1 Step 12. To install the new touch control board: a. Line up the holes on the new tou...

Step 10. Disconnect the three cables from the scalar board. 1 Step 11. Remove the five screws that secure the scalar board to the motherboard and chassis, then lift it up to remove it. 1 1 1 Step 12. To install the new scalar board: a. Line up the holes on the new scalar board with the mounting hole...

Step 15. Remove the TV scalar board. Refer to “Replacing the TV scalar board”. Step 16. Remove the Wi-Fi card. Refer to “Replacing the Wi-Fi card”. Step 17. Remove the TV tuner card. Refer to “Replacing the TV tuner card”. Step 18. Remove all the cables connected to the motherboard. Step 19. Remove ...

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 protect the computer screen from scratchesor other damage. To replace the LED panel: Step 1. Remove any media (disks, CDs, DVDs, ...

Step 24. Reattach the EMI cover, middle cover, optical drive, computer stand and the rear cover. Replacing the power switch board Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the cover. To replace the power switch board Step 1. Remove any media (disks, CDs,...

Chapter 9. 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 ...