Lenovo C225 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...

• 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 of a grounded work mat to provide a static-free work surfac...

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 Lenovo C22...

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...

• Not be a common word or a common name • Be significantly different from your previous password Administrator password When a Administrator Password is set, it deters unauthorized persons from changing configurationsettings. If you are responsible for maintaining the settings of several computers, ...

To delete a previously set Power-On Password, do the following : 1. From the Security menu, select Set Power-On Password and press Enter . 2. The password dialog box will be displayed. Enter Current Password and press Enter. Press Enter in New Password and confirm New Password dialog. A setup notice...

2. Select Start Up . 3. Select Quick Boot Mode, Numlock, Option Keys Display, to set these devices. 4. Select Disabled or Enabled and press Enter. 5. Press ESC to return to Exit and select Save changes and Exit. If you have changed these settings and want to return to the default settings, select Lo...

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 power-on the system, it performs a series of tests that check the operation of the systemand some options. This series of tests is called the Power-On Self-Test , or POST . POST does the following operations. • Checks some basic system-board operations • Checks the mem...

Chapter 7. 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 or in the HardwareMaintenance Manual (HMM) for the computer. To obtain copies of the...

Hardware components The following illustration shows the components that make up your computer. 1 2 3 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 2 2 1 2 3 2 4 2 5 2 6 2 7 4 5 1. Hard disk drive cover 15. Function button board 2. Memory cover 16. Power and front LED board 3. Rear cover 17....

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 that youcan install later. The following illustration sh...

Replacing a memory module 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 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...

3 3 4 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 memory module in place. Step 7. Align then slide back the memory cover. Step 8. Reattach the memory cover and secure it with the screw. Replacing the optical ...

Step 11. 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 onto the new optical drive. c. Slide the new optical drive into the drive bay. Step 12. Screw the new optical drive onto the chassi...

Step 8. Install the new hard disk drive as follows: a. Slide the new hard disk drive into the drive bay. b. Screw the 4 screws back onto the drive bay. Step 9. Slide the hard disk drive bay back into position. Step 10. Secure the hard disk drive bay to the chassis with the screw. Step 11. Reattach t...

Step 5. The mouse can be replaced using the same method. Replacing the power cord 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 place the computer face-down on a soft flat surface for this procedure. Lenovo recommen...

Removing the computer cover Note: Turn off the computer and wait 3 to 5 minutes to let the computer cool down before removing the computer 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 oth...

Replacing the converter board Note: Turn off the computer and wait 3 to 5 minutes to let the computer cool down before removing the computer 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 o...

Step 10. Connect the cables to the new converter board. Step 11. Line up the new converter board then secure it with the screws. Step 12. Reattach the computer cover, the speaker cover, the hard disk drive cover and the optical disk drive. Removing the computer stand Note: Turn off the computer and ...

1 3 1 2 Step 9. Remove the 5 screws that secure the stand to the chassis, and then lift up the stand to remove. 4 5 Removing the EMI cover Note: Turn off the computer and wait 3 to 5 minutes to let the computer cool down before removing the computer cover. Note: It may be helpful to place the comput...

Step 8. Remove the 11screws (C220 /C225 ) /10 screws (C320/C325) that secure the EMI cover to thechassis and lift the cover up to remove. For models C220 and C225 refer to the below illustration. For model C320/C325 refer to the below illustration. Replacing the system fan Note: Turn off the compute...

For model C320 refer to the below illustration. Step 11. Line up the new system fan then secure it to the chassis and connect the new power cable to the motherboard. Step 12. Reattach the EMI cover, the computer cover, the speaker cover, the hard disk drive cover and the optical disk drive. Replacin...

Step 12. Connect the antenna cable to the new TV tuner card. Step 13. Reattach the EMI cover, the computer cover, the speaker cover, the hard disk drive cover and the optical disk drive. Replacing the WLAN card Note: Turn off the computer and wait 3 to 5 minutes to let the computer cool down before ...

Step 12. Align then insert the new WLAN card to the card port and secure it to the motherboard with the screw. Step 13. Connect the 2 antenna cables to the new WLAN card. Step 14. Reattach the EMI cover, the computer cover, the speaker cover, the hard disk drive cover and the optical disk drive. Rep...

Step 11. Line up the new heatsink then secure it to the motherboard with the screws. Step 12. Reattach the EMI cover, the computer cover, the speaker cover, the hard disk drive cover and the optical disk drive. Replacing the CPU Note: Turn off the computer and wait 3 to 5 minutes to let the computer...

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 rear I/O module Step 1. Remove any media (disks, CDs, o...

For models C320 and C325 refer to the below illustration. (3 screws) Step 12. Line the new I/O module up then slide it into the metal bracket. Step 13. Line the new I/O module and metal bracket up with the chassis then secure it with the screws. Step 14. Connect the power cable to the motherboard an...

Step 10. Line up the new speaker system with the chassis then secure it using the screws. Step 11. Connect the new speaker cables to the motherboard. Step 12. Reattach the EMI cover, the computer cover, the speaker cover, the hard disk drive cover and the optical disk drive. Replacing the motherboar...

Step 20. Reattach the EMI cover, the computer cover, the speaker cover, the hard disk drive cover and the optical disk drive. Replacing the camera Note: Turn off the computer and wait 3 to 5 minutes to let the computer cool down before removing the computer cover. Note: It may be helpful to place th...

Replacing the front indicator and power button board Note: Turn off the computer and wait 3 to 5 minutes to let the computer cool down before removing the computer 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...

Replacing the front function board Note: Turn off the computer and wait 3 to 5 minutes to let the computer cool down before removing the computer 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,...

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

Chapter 8. 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 drives...