Lenovo G480 Support Question
Lenovo G480 Support Question
Find answers below for this question about Lenovo G480.Need a Lenovo G480 manual? We have 1 online manual for this item!
Question posted by mirmoeenihamid on August 15th, 2013
My Lenovo G480 Isnot Working Without Ac Power Adaptor And Almost Have 65% Charg
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Related Lenovo G480 Manual Pages
Hardware Maintenance Manual - Page 3
...FRUs 18
General checkout 19 What to do first 20 Power system checkout 21
Checking the AC adapter 21 Checking operational charging 22 Checking the battery pack 22
Related service information ...23 Passwords 24 Power-on password 24 Hard-disk password 24 Supervisor password 24 Power management 25 Screen blank mode 25 Sleep (standby) mode 25 Hibernation mode 26
Lenovo G480/G485/G580/G585...
Hardware Maintenance Manual - Page 6
..., fasten it. • Insert the ends of the object equally between your clothing. Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
General safety
Follow these rules below to lift it... sure that you are hammering, drilling, soldering, cutting wire, attaching springs, using solvents, or working in any heavy object:
1. Never move suddenly or twist when you are not in a hazardous...
Hardware Maintenance Manual - Page 8
... aid.
4 Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
• Always look carefully for possible hazards in a machine: - Power supply units - Switch off the power. - Motor ...power extension cables, power surges, and missing safety grounds.
• Do not touch live electrical circuits with the power on when they are removed from their normal operating places in your work...
Hardware Maintenance Manual - Page 10
... charge even when you use of the ac plug on ac-operated computers. Notes: 1. The mat is especially useful when handling ESD-sensitive devices. • Select a grounding system, such as fully effective. Lenovo G480/...or integrated circuits (ICs) should be verified by equalizing the charge so that the machine, the part, the work
surface. ESD damage can use an ESD common ground or reference...
Hardware Maintenance Manual - Page 24
...a liquid onto the keyboard • Use of an incorrect AC adapter on the diskette drive cover, foreign
material in the drive... • Diskette drive damage caused by pressure on laptop products
The following symptoms might indicate damage caused by nonwarranted...computer unusable) • Sticky keys caused by the customer. Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
What to do ...
Hardware Maintenance Manual - Page 25
... and install the charged battery pack. 7.
Make sure that the battery pack supplies power when you turn on the computer. 5. Unplug the AC adapter cable from the AC adapter does not always indicate a defect.
21 See the
following : • Replace the system board. • If the problem persists, go to "Lenovo G480/G485/G580/G585/G780...
Hardware Maintenance Manual - Page 26
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 pack that less than +9V DC, perhaps the battery has entered into overdischarge protection mode, pre-charge the battery with AC, please
replace the battery if battery capacity can charge to...
Hardware Maintenance Manual - Page 28
... made available to the servicer, there is apparent on the screen for any Lenovo computer: the power-on by you might experience periods when no activity is no action is complete, the ...the user or the master HDP, or to the Microsoft Windows screen is normal.
8. Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
7. This is displayed. The hard disk drive can be replaced for ...
Hardware Maintenance Manual - Page 30
... the boot record 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...hard disk drive, the parallel connector, or the diskette drive within that action: - Pressing the power button. Also, the computer goes into hibernation mode, perform that time. • If the timer...
Hardware Maintenance Manual - Page 32
... WLAN card (half size)
Bluetooth wireless
• option
Keyboard
• 6 Row, Lenovo Keyboard
Touch pad
• Two clicks with Dome
Integrated camera
• 640 ×...AC adapter
• 40 W or 65 W or 90 W
Pre-installed operating system
• Win 7 Starter/Home Basic/Home Premium/ Professional
• Linpus lite/DOS • Win 8 (launch at 2nd half year of 2012)
28 Lenovo G480...
Hardware Maintenance Manual - Page 33
.../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 Caps Lock mode, press the CapsLk key. ... Blinking white:
System is enabled. Status indicators
Indicator
Meaning
a Caps lock b Num lock c Power on the keyboard is in hibernate mode or shut down.
29
Hardware Maintenance Manual - Page 34
... is being charged with the remaining power between 20% and 80% of its capacity.
Blinking white:
The wireless LAN is switched on and the radio of it is also turned off , or the wireless LAN radio is on and not connected to AP. Sudden physical shock could cause drive errors.
30 Lenovo G480/G485...
Hardware Maintenance Manual - Page 37
...service any of the interconnecting cables. Any of such FRUs are of the notes that all power cords from the actual product. Metallic parts or metal flakes can be removed before the ...screw as given by removing any FRU, review "FRU replacement notices" on page 32. 3. Lenovo G480/G485/G580/G585/G780
Removing and replacing an FRU
This section presents exploded figures with one hand...
Hardware Maintenance Manual - Page 61
Lenovo G480/G485/G580/G585/G780
Figure 9.
Lenovo G480/G485/G580/G585
7 7
8
Lenovo G780
7 7
8
57 Removal steps of keyboard bezel (continued)
Remove the two screws g, and then remove the power board in the direction shown by arrow h.
Hardware Maintenance Manual - Page 62
Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
Lenovo G780
Remove the screw i, and then remove the power board in the directioshown by arrow j h.
9
10
Step
g
i
Screw (quantity) M2.0×3.0 mm, flat-head, nylok-coated (2)
G780: M2.0×3.0 mm, flat-head, nylok-coated (1)
Color Black
Black
Torque 1.5-2.0 kgfcm
1.5-2.0 kgfcm
58
Hardware Maintenance Manual - Page 66
Detach the two FPC connectors in the direction shown by arrows b. Unplug the speakers and the bluetooth connectors in the direction shown by arrow e.
5
6
Lenovo G780
Remove the three screws a. Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
Lift the system board a little d, and then detach the power connector in the direction shown by arrows c.
62
1
G770
1
1
2 3
3 2
Hardware Maintenance Manual - Page 67
Unplug the LCD connector and power jack connector in the direction shown by arrows e f.
6
4
4
5
Step
a
d
Screw (quantity)
M2.5×4.0 mm, flat-head, nylok-coated (3)
G780: M2.5×4.0 mm, flat-head, nylok-coated (2)
Color Black
Black
Torque 2.0-2.5 kgfcm
2.0-2.5 kgfcm
63 Lenovo G480/G485/G580/G585/G780
Remove two screws d.
Hardware Maintenance Manual - Page 69
Lenovo G480/G485/G580/G585/G780
Figure 11. Lenovo G480/G485/G580/G585
8 9
a
a
65 Removal steps of system board (continued)
Remove the screw h.
Then remove the card reader board in the direction shown by arrow i.
Hardware Maintenance Manual - Page 72
... shown by arrow m j.
12 13
Step
l
Screw (quantity)
G480/G485/G580/G585: M2.5×4.0 mm, flat-head, nylok-coated (1)
Color Black
Remove the power jack in the direction shown by arrow n j. Removal steps of system board (continued) Lenovo G480/G485/G580/G585
Remove the screw l j. Lenovo G480/G485/G580/G585/G780 Hardware Maintenance Manual
Figure 11...
Hardware Maintenance Manual - Page 101
Lenovo G480/G485/G580/G585/G780 Parts list
This section presents the following service parts: • "Overall" on page 98 • "LCD FRUs" on page 105 • "Keyboard" on page 108 • "Miscellaneous parts" on page 114 • "AC adapters" on page 115 • "Power cords" on page 116
Notes: • Each FRU is available...
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