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Popular Lenovo 28425JU Manual Pages
Hardware Maintenance Manual - Page 3
...Numeric error codes 45 Error messages 46 No-beep symptoms 47 LCD-related symptoms 47 Intermittent problems 48 Undetermined problems 48
Chapter 5. Related service information 39
Restoring the factory contents by using Product Recovery discs 39 Restoring the factory contents by using Recovery Disc Set 39 Passwords 41
Power-on password 41 Hard-disk password 41
© Copyright Lenovo 2009...
Hardware Maintenance Manual - Page 29
... the settings. Go to contact the Lenovo Customer Support Center if they need any assistance in
obtaining or installing any of the error. If you continue.
• Some computers have been customized. "Important notice for replacing FRUs" on page 24 -
Enter the product number of more than one , to replace a FRU but the replacement does not correct the problem, reinstall...
Hardware Maintenance Manual - Page 33
... to the checkout guide, be replaced because of a single, unreproducible failure. If the error does not recur, do return a FRU, you must include the following are servicing sequence might be responsible for repair costs if the computer damage was detected 7.
Name and phone number of purchase 5. Date of service technician 2. Failure symptoms, error codes appearing on page...
Hardware Maintenance Manual - Page 34
... laptop products
The following Web site: http://support.lenovo.com
To create the PC-Doctor diagnostic CD, follow the instructions on the computer. 2.
To enter BIOS Setup Utility, do as possible. 2. When the ThinkPad logo comes up, immediately press F1 to test only ThinkPad products.
Turn on the Web site.
To avoid this problem, you need to your particular computer...
Hardware Maintenance Manual - Page 35
... the instructions on the model.) Note: PC-Doctor menu does not mean the formal support device list. Turn on page 44. 4. On the BIOS Setup Utility screen, press F9, Enter, F10, and then Enter. Note: If a supervisor password has been set by the customer, BIOS Setup Utility menu appears after the password is installed to the computer you are servicing. 3. Note...
Hardware Maintenance Manual - Page 39
... information about ThinkPad computers that enable you to troubleshoot and resolve computer internal storage and memory problems.
Notes: • If the computer you can be downloaded from the Lenovo Support Web site. • The two programs are servicing is applied to enable it . General checkout 33 Table 1.
This drift can occur when a slight, steady pressure is not installed with...
Hardware Maintenance Manual - Page 40
... code is preinstalled on the computer.
Click Lenovo Bootable Diagnostics. 3. UEFI diagnostic program
A UEFI diagnostic program is displayed, go to test memory and internal storage problems, view system information, and check and recover bad sectors on page 35, and check the power sources.
Follow the instructions on page 44 for error code descriptions and troubleshooting...
Hardware Maintenance Manual - Page 45
... to complete the Windows setup. If there is normal. 8. Follow the instructions on the screen for the computer.
This is a Supplemental Recovery Disc, it when prompted and click Yes. Remove the disc and then click Yes. Order the Recovery Disc Set and the hard disk drive at a time. Chapter 4. Related service information
This chapter presents...
Hardware Maintenance Manual - Page 46
...setup.
40 Hardware Maintenance Manual Select the CD/DVD drive as updates to use recovery discs, the recovery process will be deleted. Press F10 to begin the recovery process.
4. Follow the instructions on the screen.
6. Insert the Applications and Drivers... of the user instructions and the following set and has been processed, remove the disc and restart the computer. c. Click Yes...
Hardware Maintenance Manual - Page 47
... the supervisor password (SVP).
If no SVP has been set:
Chapter 4.
Press F10 to the system user. If any ThinkPad Notebook: the power-on by an unauthorized person. The system administrator then provides the user HDP to save and exit the Setup Utility. The hard disk drive can be made available to the service technician...
Hardware Maintenance Manual - Page 48
...Note: To check whether the ThinkPad Notebook you are servicing supports the Passphrase function, enter the BIOS Setup Utility and go to enter BIOS Setup Utility. Type the current master HDP in the Setup confirmation window, select Yes. Remove the backup battery.
Remove the battery pack. Turn on the computer. 2. Select Power-On Password. 6. then, in the Enter...
Hardware Maintenance Manual - Page 51
... beeps)
1. Then restart the computer.
0260 System timer error. (two short beeps)
1. Run BIOS Setup Utility, and then save current setting by pressing F10.
2.
System board.
0232 Extended RAM error- Replace the backup battery and run BIOS Setup Utility to reset the time and date.
3. System board. Related service information 45 Numeric error codes
Table 2. DIMM. 2. DIMM...
Hardware Maintenance Manual - Page 54
... FRU shown by the computer. LCD-related symptoms
Symptom or error
No beep, power-on indicator on LCD. When analyzing an intermittent problem, do not replace any FRUs. 3.
Visually check each FRU for "LCD-related symptoms." 2. Remove or disconnect all LCD connectors. 3. DIMM h. Hard disk drive f. System board
48 Hardware Maintenance Manual
Reseat the LCD...
Hardware Maintenance Manual - Page 60
... PM device driver installed on the ThinkPad Notebooks that have the ThinkLight. To return to start Presentation Director. The computer display becomes brighter. The indicator of the ThinkLight is supported only on the computer.
Has the same function as the SysRq key.
To disable this function, start Presentation Director, and change the Fn+F7 settings.
Reserved. Note...
Hardware Maintenance Manual - Page 121
... or models, unless specific types or models are installing the CRU, Lenovo will be
used for all of these types
of CRUs: - two asterisks (**) means that the part is required: (1) return instructions, a prepaid shipping label, and a container will ship the CRU to return the defective part that Lenovo installs an Optional-service CRU according to customers: Some problems with finger...
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