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Lenovo IdeaPad S100 Lenovo IdeaPad S100 Hardware Maintainence Manual - Page 40

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Lenovo IdeaPad S100 Hardware Maintenance Manual DIMM For access, remove this FRU: • "Base screws" on page 30 • "Battery pack" on page 32 • "Keyboard" on page 33 • "Base cover" on page 34 Figure 5: Removal steps of DIMM 2 1 1 Release the two latches on both edges of the socket at the same time in the direction shown by arrows , and then unplug the DIMM in the direction shown by arrow . Note: If only one DIMM is used on the computer you are servicing, the card must be installed in SLOT-0 ( : lower slot), but not in SLOT-1 ( : upper slot). b a When installing: Insert the notched end of the DIMM into the socket. Push the DIMM firmly, and pivot it until it snaps into the place. Make sure that it is firmly fixed in the slot and difficult to be moved. 36

Section	Page
Contents	3
About this manual	4
Safety information	5
General safety	5
1. Make sure that you can stand safely without slipping.	5
2. Distribute the weight of the object equally between your feet.	5
3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift it.	5
4. Lift it by standing or pushing up with your leg muscles; this action could avoid the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you.	5
Electrical safety	6
Safety inspection guide	7
1. Check exterior covers for damage (loose, broken, or sharp edges).	7
2. Turn off the computer. Disconnect the power cord.	7
3. Check the power cord for:	7
a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground continuity for 0.1 ohm or less between the external ground pin and the frame ground.	7
b. The power cord should be the type specified in the parts list.	7
c. Insulation must not be frayed or worn.	7
4. Check for cracked or bulging batteries.	7
5. Remove the cover.	7
6. Check for any obvious non-Lenovo IdeaPad alterations. Use good judgment as to the safety of any non-Lenovo IdeaPad alterations.	7
7. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or other liquids, or signs of fire or smoke damage.	8
8. Check for worn, frayed, or pinched cables.	8
Handling devices that are sensitive to electrostatic discharge	8
Grounding requirements	8
Safety notices: multilingual translations	9
Laser compliance statement	15
Important service information	18
Strategy for replacing FRUs	18
1. Go to http://consumersupport.lenovo.com/.	18
2. Enter a serial number or select a product or use Lenovo smart downloading.	18
3. Select the BIOS/Driver/Applications and download.	18
4. Follow the directions on the screen and install the necessary software.	18
Strategy for replacing a hard disk drive	19
Important notice for replacing a system board	19
Important information about replacing RoHS compliant FRUs	19
General checkout	21
What to do first	21
1. Name and phone number of servicer	21
2. Date of service	21
3. Date on which the machine failed	21
4. Date of purchase	21
5. Procedure index and page number in which the failing FRU was detected	21
6. Failing FRU name and part number	21
7. Machine type, model number, and serial number	21
8. Customer’s name and address	21
Power system checkout	22
1. Turn off the computer.	22
2. Remove the battery pack.	22
3. Connect the AC adapter.	22
4. Make sure that power is supplied when you turn on the computer.	22
5. Turn off the computer.	22
6. Disconnect the AC adapter and install the charged battery pack.	22
7. Make sure that the battery pack supplies power when you turn on the computer.	22
Checking the AC adapter	23
1. Unplug the AC adapter cable from the computer.	23
2. Measure the output voltage at the plug of the AC adapter cable. See the following figure:	23
3. If the voltage is not correct, replace the AC adapter.	23
4. If the voltage is acceptable, do the following:	23
Checking operational charging	23
Checking the battery pack	23
1. Turn off the computer.	24
2. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 7 (-). See the following figure:	24
3. If the voltage is less than +11.0 V DC, the battery pack has been discharged.	24
4. If the voltage is more than +11.0 V DC, measure the resistance between battery terminals 5 and 7. The resistance must be 4 to 30 KΩ.	24
Related service information	25
Restoring the factory contents by using OneKey Recovery	25
Restore of factory default	25
Using recovery discs	25
Passwords	26
Power-on password	26
Supervisor password	26
Power management	26
Screen blank mode	26
Sleep (standby) mode	26
Hibernation mode	27
Lenovo IdeaPad S100	28
Specifications	28
Status indicators	30
Fn key combinations	32
FRU replacement notices	33
Screw notices	33
Removing and replacing an FRU	34
1. Do not attempt to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts.	34
2. Before replacing any FRU, review “FRU replacement notices” on page 29.	34
3. Begin by removing any FRUs that have to be removed before the failing FRU. Any of such FRUs are listed at the top of the page. Remove them in the order in which they are listed.	34
4. Follow the correct sequence in the steps to remove the FRU, as given in the figures by the numbers in square callouts.	34
5. When turning a screw to replace an FRU, turn it in the direction as given by the arrow in the figure.	34
6. When removing the FRU, move it in the direction as given by the arrow in the figure.	34
7. To put the new FRU in place, reverse the removal procedures and follow any of the notes that pertain to replacement. For information about connecting and arranging internal cables, see “Locations” on page 48.	34
8. When replacing an FRU, use the correct screw as shown in the procedures.	34
Base screws	34
Battery pack	36
Keyboard	37
Base cover	38
DIMM	40
Hard disk drive	41
USB port	43
Fan assembly and Heat Sink assembly	44
TVturner	45
System board	46
Speakers	47
LCD unit	48
Integrated camera	51
Locations	52
Top view	52
Left-side view	53
Right-side view	54
Front view	54
Bottom view	55
Parts list	56
Overall	57
LCD FRUs	60
Keyboard	61
Miscellaneous parts	62
AC adapters	63
Power cords	63
Notices	65