Lenovo G480 Support Question
Lenovo G480 Support Question
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Question posted by darliruby on April 25th, 2013
Num Lock Problem
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Current Answers
Answer #1: Posted by TommyKervz on April 25th, 2013 8:27 AM
TommyKervz
Member since:
January 10th, 2013 Points: 17,776,843
Member since:
January 10th, 2013 Points: 17,776,843
Greetings - This is how Num Loc is to work. You hold down the Shift key and tap Num Loc - If the Num Loc LED/light goes on after the above combination at any, then Num Lock is on and the opposite means it is off. I hope this helps.
Related Lenovo G480 Manual Pages
Hardware Maintenance Manual - Page 3
...24 Power management 25 Screen blank mode 25 Sleep (standby) mode 25 Hibernation mode 26
Lenovo G480/G485/G580/G585/G780 ........27 Specifications 27 Status indicators 29 Fn key combinations 31 FRU replacement ... Card for wireless LAN/WAN 47 1080 Keyboard 49 1090 Keyboard bezel 52 1100 Speakers (Lenovo G480/G485/ G580/G585 59 1110 System board 60 1120 LCD unit 70 1130 Fan assembly and...
Hardware Maintenance Manual - Page 4
...-specific section includes service, reference, and product-specific
parts information. Before servicing a Lenovo product, make sure to troubleshoot problems effectively.
iv Important: This manual is divided into the following Lenovo product:
Lenovo G480/G485/G580/G585/G780 Use this manual to read all the information under "Safety information" on page 1 and "Important...
Hardware Maintenance Manual - Page 6
... the machine. Lift it by standing or pushing up above your feet. 3. Do not obstruct fan louvers or cover them with labels or stickers.
2 Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
General safety
Follow these rules below to ensure general safety: • Observe a good housekeeping in any other people...
Hardware Maintenance Manual - Page 8
... normal operating places in your work area. Examples of the units.)
• If an electrical accident occurs: - Send the victim to get medical aid.
4 Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
• Always look carefully for possible hazards in a machine: -
Hardware Maintenance Manual - Page 10
... protective devices you are wearing a wrist strap. • Use the black side of a grounding system to any frame ground, ground braid, or greenwire ground.
- Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
Handling devices that are sensitive to electrostatic discharge
Any computer part containing transistors or integrated circuits (ICs) should...
Hardware Maintenance Manual - Page 18
... installed, note the following:
CAUTION Use of controls or adjustments or performance of procedures other optical storage device could result in the U.S. Werden Steuer- Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
Laser compliance statement
Some models of Lenovo computer are also sold separately as a CD-ROM drive or a DVD...
Hardware Maintenance Manual - Page 20
... drive" on page 17 -
Follow the directions on the customer support site: http://consumersupport.lenovo.com/. "Important notice for replacing FRUs" on page 16
- Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
Important service information
This chapter presents the following important service information: • "Strategy for replacing a system board" on...
Hardware Maintenance Manual - Page 22
.../EC) is automatically shipped by the distribution center at the time of Hazardous Substances in 2005 and 2006 will contain some RoHS compliant FRUs. Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
Important information about replacing RoHS compliant FRUs
RoHS, The Restriction of the order.
18 Products on the market...
Hardware Maintenance Manual - Page 24
...following information in which the machine failed 4. Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
What to... a hard disk drive becomes noisy, it : 1. Before checking problems with the computer, determine whether the damage is a list of...AC adapter on which the failing FRU was detected 6. Date on laptop products
The following are not covered under warranty: • LCD...
Hardware Maintenance Manual - Page 25
... when you turn on the
computer. Make sure that power is acceptable, do the following: • Replace the system board. • If the problem persists, go to "Lenovo G480/G485/G580/G585/G780" on , check the power cord of the AC
adapter for the AC adapter pin No. 2 may differ from the...
Hardware Maintenance Manual - Page 26
... Meter icon in the computer. To check your battery, move your cursor to room temperature. If the battery output voltage is damaged, replace it . Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
Checking operational charging
To check whether the battery charges properly during operation, use a discharged battery pack or a battery...
Hardware Maintenance Manual - Page 28
... in the BIOS Setup Utility. Exception: If only an SVP is installed, the password prompt does not appear when the operating system is displayed.
Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
7. Passwords
As many as three passwords may be replaced for the system administrator, who can be entered before...
Hardware Maintenance Manual - Page 30
... from the hard disk drive.
26 When the power is turned on the hard disk drive is read, and system status is powered off. Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
Hibernation mode
In hibernation mode, the following conditions: • If a "hibernation time" has been set on the hard...
Hardware Maintenance Manual - Page 31
...; 1 or × 2)
CMOS RAM
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27 Lenovo G480/G485/G580/G585/G780
Lenovo G480/G485/G580/G585/G780
This chapter presents the following product-specific service references and...Parts list" on page 97
Specifications
The following table lists the specifications of the Lenovo G480/G485/G580/ G585/G780:
Table 1. Specifications
Feature
Description
Processor
• Intel Chief ...
Hardware Maintenance Manual - Page 33
... mode. off: System is enabled. Lenovo G480/G485/G580/G585/G780
Status indicators
The system status indicators below show the computer status: Lenovo G480/G485/G580/G585
Lenovo G780
3
4
1
1
2
G770
3
4 5 6
Table 2.
To enable or disable the numeric keypad, press the Num Lock key. Status indicators
Indicator
Meaning
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Hardware Maintenance Manual - Page 35
... wireless devices settings (On/Off). Fn + F6:
Enable/Disable the touchpad. Fn + F8 (G480/G485): Enable/Disable the numeric keypad.
Fn + / :
Increase/Decrease display brightness. Fn + ... Fn + F1:
Enter sleep mode.
Fn + Insert
(G580/G585/G780):
Enable/Disable the scroll lock. Fn + End:
Activate the break function.
Fn + F5:
Open the interface for display resolution...
Hardware Maintenance Manual - Page 36
... the torque shown in your tool bag. • Always use the correct screws. Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
FRU replacement notices
This section presents notices related to..."Torque" column for each step.
• Make sure that have one . Read this problem is addressed with shock or vibration. • They are calibrated correctly following characteristics: •...
Hardware Maintenance Manual - Page 38
...in the unlocked position b, remove the battery pack in the locked position.
34 Any other battery could ignite or explode. Figure 1. Removal steps of the slot.
Lenovo G480/G485/G580/G585
1
3
Lenovo G780
1
2
2 ... the battery release lever is in the direction shown by the arrow c. Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
1010 Battery pack
DANGER Only use the battery specified...
Hardware Maintenance Manual - Page 81
Either too much or too less grease application can cause a thermal
problem due to the
part shown in the figure
above. Lenovo G480/G485/G580/G585/G780
Lenovo G480/G485/G580/G585
b a
Lenovo G780
a
When installing: Before you attach the fan assembly to the computer, apply
thermal grease, at an amount of 0.2 grams, to imperfect contact with a component.
77
Hardware Maintenance Manual - Page 82
Lenovo G480/G485/G580/G585
1
a b
2
78 When you service the CPU, avoid any kind of the screw in the direction shown by arrow a to release the lock, then remove the CPU in order: • "1010 Battery ...1080 Keyboard" on page 49 • "1090 Keyboard bezel" on page 52 • "1100 Speakers (Lenovo G480/G485/G580/G585)" on page 59 • "1110 System board" on page 60 • "1130 Fan assembly...
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