Hard-disk password ........24 Supervisor password ........24 Power management .......... 25 Screen blank state ........25 Putting the computer to sleep or shutting it down ............25 Lenovo S435 ..........28 Specifications ............. 28 Status indicators ..........30 Hotkeys ............... 32...
This manual is intended only for trained servicers who are familiar with Lenovo products. Use this manual to troubleshoot problems effectively. Before servicing a Lenovo product, make sure to read all the information under “Safety information” on page 1 and “Important service information”...
Safety information Safety information This chapter presents the following safety information that you need to get familiar with before you service a Lenovo computer: • “General safety” on page 2 • “Electrical safety” on page 3 • “Safety inspection guide” on page 5 •...
Lenovo S435 Hardware Maintenance Manual General safety Follow these rules below to ensure general safety: • Observe a good housekeeping in the area where the machines are put during and after the maintenance. • When lifting any heavy object: 1. Make sure that you can stand safely without slipping.
Safety information Electrical safety Observe the following rules when working on electrical equipments. Important: Use only approved tools and test equipments. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have rubber floor mats near their machines that contain small conductive fibers to decrease electrostatic discharges.
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Lenovo S435 Hardware Maintenance Manual • Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds. • Do not touch live electrical circuits with the reflective surface of a plastic dental mirror.
4. Check for cracked or bulging batteries. 5. Remove the cover. 6. Check for any obvious non-Lenovo alterations. Use good judgment as to the safety of any non-Lenovo alterations. 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.
Lenovo S435 Hardware Maintenance Manual Handling devices that are sensitive to electrostatic discharge Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.
Safety information Safety notices: multilingual translations The safety notices in this section are provided in English, French, German, Hebrew, Italian, Japanese, and Spanish. Safety notice 1 Before the computer is powered on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer.
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Lenovo S435 Hardware Maintenance Manual Safety notice 2 DANGER Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short-circuit it. Dispose of the battery as required by local ordinances or regulations.
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Safety information Safety notice 3 DANGER The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack.
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Lenovo S435 Hardware Maintenance Manual Safety notice 4 DANGER The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations.
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Safety information Safety notice 5 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water at least for 15 minutes. Seek medical care if any symptoms caused by the fluid are present after washing.
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Lenovo S435 Hardware Maintenance Manual Safety notice 6 DANGER To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card. Afin d’éviter tout risque de choc électrique, ne retirez pas le cache en plastique protégeant la partie inférieure de la carte d’alimentation.
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Safety information Safety notice 8 DANGER Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. Avant de retirer une unité remplaçable en clientèle, mettez le système hors tension, débranchez tous les cordons d’alimentation des socles de prise de courant, retirez la batterie et déconnectez tous les cordons d’interface.
Lenovo S435 Hardware Maintenance Manual Laser compliance statement Some models of Lenovo computer are equipped from the factory with an optical storage device such as a CD-ROM drive or a DVD-ROM drive. Such devices are also sold separately as options. If one of these drives is installed, it is certified in the U.S.
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Safety information A CD-ROM drive, a DVD-ROM drive, or any other storage device installed may contain an embedded Class 3A or Class 3B laser diode. Note the following: DANGER Emits visible and invisible laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam.
To download software fixes, drivers, and BIOS, follow the steps below: 1. Go to http://support.lenovo.com. 2. Enter the serial number or select a product or use Lenovo smart downloading. 3. Select the BIOS/Driver/Applications and download.
Important service information Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs: • If you are instructed to replace an FRU, but the replacement does not solve the problem, reinstall the original FRU before you continue. •...
Electronic Equipment Directive (2002/95/EC) is a European Union legal requirement affecting the global electronics industry. RoHS requirements must be implemented on Lenovo products placed on the market after June 2006. Products on the market before June 2006 are not required to have RoHS compliant parts.
General checkout General checkout This chapter presents the following information: • “What to do first” on page 20 • “Power system checkout” on page 21 Before you go to the checkout, make sure to read the following important notes: Important notes: •...
Lenovo S435 Hardware Maintenance Manual What to do first When you do return an FRU, you must include the following information in the parts exchange form or parts return form that you attach to it: 1. Name and phone number of servicer 2.
4. If the voltage is acceptable, do the following: • Replace the system board. • If the problem persists, go to “Lenovo S435” on page 28. Note: Noise from the AC adapter does not always indicate a defect. Checking operational charging...
Lenovo S435 Hardware Maintenance Manual Perform operational charging. If the battery status indicator or icon does not light on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack.
1. Insert the bootable Start Recovery Disc into the optical drive. 2. Start the computer. When the Lenovo logo comes up, immediately press F12; on the boot sequence menu, select the optical drive as the first boot-up device.
Windows screen is displayed. Follow the instructions on the screen to complete the Windows setup. Passwords As many as three passwords may be needed for any Lenovo computer: the power-on password (POP), the hard disk password (HDP), and the supervisor password (SVP).
Related service information Power management Note: Power management modes are not supported for APM operating system. To reduce power consumption, the computer has three power management modes: screen blank, sleep (standby), and hibernation. Screen blank state If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off.
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Lenovo S435 Hardware Maintenance Manual Shutting down the computer If you are not going to use your computer for a long time, shut it down. To shut down your computer, do one of the following: → Power → Shut • Open the charms bar and select Settings down.
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Related service information • On the Start screen, click and select Shut down. Note: This operation depends on your BIOS settings. Please refer to the actual product.
• “FRU replacement notices” on page 33 • “Removing and replacing an FRU” on page 34 • “Locations” on page 59 • “Parts list” on page 62 Specifications The following table lists the specifications of the Lenovo S435: Table 1. Specifications Feature Description Processor...
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Lenovo S435 Table 1. Specifications (continued) Feature Description I/O ports HDMI port × 1 USB 2.0 × 2, USB 3.0 × 1 2 in 1 slot × 1 (MMC, SD) Audio Combo audio jack × 1 Speaker × 2 Built-in microphone Video HDMI port ×...
Lenovo S435 Table 2. Status indicators Symbol Indicator Indicator Meaning status Power On (solid The computer is powered white) Blinking The computer is in sleep mode. The computer is powered off. Battery On (solid The battery has more white) than 20% charge.
Lenovo S435 Hardware Maintenance Manual Hotkeys The hotkeys are located in the function key row of the keyboard.By pressing the appropriate hotkey, you can change system settings instantly. The following describes the function of each hotkey. Table 4. Hotkeys Hotkeys Description Mute/Unmute.
This section presents notices related to removing and replacing parts. Read this section carefully before replacing any FRU. Screw notices Loose screws can cause a reliability problem. In the Lenovo computer, this problem is addressed with special nylon-coated screws that have the following characteristics: •...
Lenovo S435 Hardware Maintenance Manual Removing and replacing an FRU This section presents exploded figures with the instructions to indicate how to remove and replace the FRU. Make sure to observe the following general rules: 1. Do not attempt to service any computer unless you have been trained and certified.
Lenovo S435 1010 Battery pack DANGER Only use the battery specified in the parts list for your computer. Any other battery could ignite or explode. Figure 1. Removal steps of battery pack Unlock the manual battery latch . Slide the spring-loaded latch to the unlocked position to eject the battery pack .
Lenovo S435 Hardware Maintenance Manual 1020 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover For access, remove this FRU: • “1010 Battery pack” on page 35 Figure 2. Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover Open four rubber feet pads with a screw driver in the direction shown by arrows...
Lenovo S435 1030 PCI Express Mini Card for wireless LAN/WAN For access, remove these FRUs in order: • “1010 Battery pack” on page 35 • “1020 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 36 Figure 3. Removal steps of PCI Express Mini Card for wireless LAN/WAN...
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Lenovo S435 Hardware Maintenance Manual Figure 3. Removal steps of PCI Express Mini Card for wireless LAN/WAN (continued) Remove the card in the direction shown by arrow When installing: • In models with a wireless LAN card that has two antenna connectors, plug the black cable (1st) (MAIN) into the jack labeled 1, and the white cable (2nd) (AUX) into jack labeled 2 on the card.
Lenovo S435 1040 Hard disk drive For access, remove these FRUs in order: • “1010 Battery pack” on page 35 • “1020 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 36 • “1030 PCI Express Mini Card for wireless LAN/WAN” on page 37 Attention: •...
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Lenovo S435 Hardware Maintenance Manual Figure 4. Removal steps of hard disk drive (continued) Remove four screws and detach the metal frame from the hard disk drive. Step Screw (quantity) Color Torque M3.0 × 3.0 mm, flat-head, Silver 3.0+/-0.3 kgfcm nylok-coated (4) When installing: Make sure that the HDD connector is attached firmly.
Lenovo S435 1050 DIMM For access, remove these FRUs in order: • “1010 Battery pack” on page 35 • “1020 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 36 Figure 5. Removal steps of DIMM Release the two latches on both edges of the socket at the same time in the...
Lenovo S435 Hardware Maintenance Manual 1060 Fan assembly and Heat Sink assembly For access, remove these FRUs in order: • “1010 Battery pack” on page 35 • “1020 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 36 Figure 6.
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Lenovo S435 Figure 6. Removal steps of fan assembly and heat sink assembly (continued) Lift the fan assembly and heat sink assembly in the direction shown by arrow . Be careful not to damage the connector.
Lenovo S435 Hardware Maintenance Manual 1070 Keyboard For access, remove these FRUs in order:: • “1010 Battery pack” on page 35 • “1020 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 36 • “1060 Fan assembly and Heat Sink assembly” on page 42 Figure 7.
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Lenovo S435 Figure 7. Removal steps of keyboard (continued) Lift the keyboard a little . Pull the keyboard connector slot cover upward as shown by arrow , and detach the keyboard cable from the keyboard connector in the direction shown by arrow...
Lenovo S435 Hardware Maintenance Manual 1080 System board Important notices for handling the system board: When handling the system board, bear the following in mind. • Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite.
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Lenovo S435 Figure 8. Removal steps of system board (continued) Remove two screws , then remove the RJ-45 door. Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, Silver 1.85+/-0.15 kgfcm nylok-coated (2) Remove five screws Step Screw (quantity)
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Lenovo S435 Hardware Maintenance Manual Figure 8. Removal steps of system board (continued) Unplug DC-IN cable connector in the direction shown by arrow , speakers connector in the direction shown by arrow , disconnect the LCD connector in the direction shown by arrow .
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Lenovo S435 Figure 8. Removal steps of system board (continued) Remove the system board in the direction shown by arrow When installing: When attaching the system board to the base cover, adjust the placement of the USB, HDMI, RJ-45 ports as shown in , and make sure that they are attached to the holes on the base cover as shown.
Lenovo S435 Hardware Maintenance Manual 1090 LCD unit For access, remove these FRUs in order: • “1010 Battery pack” on page 35 • “1020 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 36 • “1030 PCI Express Mini Card for wireless LAN/WAN” on page 37 •...
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Lenovo S435 Figure 9. Removal steps of LCD unit (continued) Detach the LCD unit from the upper case.
Lenovo S435 Hardware Maintenance Manual 1100 Speakers, base cover, USB board, power assembly and power board For access, remove these FRUs in order: • “1010 Battery pack” on page 35 • “1020 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 36 •...
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Lenovo S435 Figure 10. Speakers, base cover, USB board, power assembly and power board (continued) Remove two screws , and then remove the USB board in the direction shown by arrow Step Screw (quantity) Color Torque M2 × 3 mm, flat-head, nylok-coated (2) Silver 1.85+/-0.15 kgfcm...
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Lenovo S435 Hardware Maintenance Manual Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. Apply those labels when you replace the base cover. For labels which are not shipped with the new base cover, peel them from the replaced base cover and adhere them to the new one.
Lenovo S435 1110 Hinge cover and LCD front bezel For access, remove these FRUs in order: • “1010 Battery pack” on page 35 • “1020 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 36 • “1030 PCI Express Mini Card for wireless LAN/WAN” on page 37 •...
Lenovo S435 Hardware Maintenance Manual 1120 LCD panel, LCD cable and hinges For access, remove these FRUs in order: • “1010 Battery pack” on page 35 • “1020 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 36 •...
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Lenovo S435 Figure 12. LCD panel, LCD cable and hinges (continued) Disconnect the connector , lift the LCD panel in the direction shown by arrow When installing: Make sure that the connector is attached firmly. Remove four screws and the hinges in the direction shown by arrows...
Lenovo S435 Hardware Maintenance Manual 1130 Integrated camera For access, remove these FRUs in order: • “1010 Battery pack” on page 35 • “1020 Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover” on page 36 • “1030 PCI Express Mini Card for wireless LAN/WAN” on page 37 •...
Lenovo S435 Locations Front view Integrated camera Wireless module antennas Computer display Power button Touch pad Built-in microphone System status indicators...
Lenovo S435 Hardware Maintenance Manual Bottom and Right-side view AC power adapter jack USB 2.0 port Combo audio jack Memory card slot Battery latch -manual Battery latch -spring loaded Battery pack Louvers Speakers...
Lenovo S435 Hardware Maintenance Manual Parts list This section presents the following service parts: • “Overall” on page 63 • “LCD FRUs” on page 67 • “Keyboard” on page 69 • “Miscellaneous parts” on page 71 • “AC adapters” on page 72 •...
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DDR3L 1600 8GB, RMT3160ME68FAF-1600 8GB DDR3L 11202450 1600 DDR3L 1600 8GB, MT16KTF1G64HZ-1G6E1 8GB DDR3L 11201304 1600 MB C S435 NOK UMA E1-6010 10W 5B20H13402 MB C S435 W8P UMA E1-6010 10W 5B20H13404 MB C S435 W8S UMA E1-6010 10W 5B20H13407...
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Lenovo S435 Table 4. Parts list—Overall (continued) FRU no. MB C S435 NOK UMA E2-6110 15W 5B20H13385 N MB C S435 W8P UMA E2-6110 15W 5B20H13388 N MB C S435 W8S UMA E2-6110 15W 5B20H13392 N MB C S435 NOK DIS E1-6010 10W1G...
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Lenovo S435 Hardware Maintenance Manual Table 4. Parts list—Overall (continued) FRU no. Hard disk drive, 500G 5400rpm(7mm), ST500LT012 6G 16200383 7mm 5.4K 500G HDD Hard disk drive, 500G 5400rpm(7mm), WD5000LPCX- 16200395 24C6HT0 6G 7mm 5.4K 500G HDD Hard disk drive, 500G 5400rpm(7mm), 16200404 HTS545050A7E660 6G 7mm 5.4K 500G HDD...
Lenovo S435 Keyboard Table 6. Parts list—Keyboard Language Indian 25213440 Czechoslovakian 25213438 Bulgarian 25213439 International English 25213437 Swiss 25213436 Slovenian 25213435 Icelandic 25213434 Belgian 25213433 Four Nordic countries 25213432 Hungarian 25213431 Hebrew 25213430 Greek 25213429 Dutch 25213428 Japanese 25213427 Brazilian...
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Lenovo S435 Hardware Maintenance Manual Table 6. Parts list—Keyboard (continued) Language Arabic 25213455 German 25213454 French 25213453 Russian 25213452 Traditional Chinese 25213451 Korean 25213450 Canadian English&French 25213449 Sunrex Latin 25213448 (continued) Portuguese 25213447 Thai 25213446 Turkish 25213445 Spanish 25213444 Italian 25213443 U.K.
Lenovo S435 Power cords A Lenovo power cord for a specific country or region is usually available only in that country or region: Table 10. Parts list—3-pin power cords Region 145000600 • LINETEK PC323+RVV300/300+LS15 1m Argentina 145000599 • LINETEK LS15+H03VV-F+LP39 1m...
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Lenovo S435 Hardware Maintenance Manual Table 10. Parts list—3-pin power cords (continued) Region Brazil 145000564 • Longwell LP-46+H03VV-F+LS-18 1m Israel 145000563 • Longwell LP-41+H03VV-F+LS-18 1m 145000562 • Longwell LP-30B+SPT-2 18AWG+LS-18 1m 145000561 • Longwell LP-61L+H03VV-F+LS-18 1m Indian 145000560 • Longwell LP-67+BIS+LS-18 1m...
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Lenovo S435 Table 10. Parts list—3-pin power cords (continued) Region Brazil 145000527 • VOLEX CH10S3+H03VV-F+VAC5S 1m Israel 145000526 • VOLEX SI16S3+H03VV-F+VAC5S 1m 145000525 • VOLEX M2511+H03VV-F+VAC5S 1m Switzerland 145000524 • VOLEX MP232+H03VV-F+VAC5S 1m 145000605 • VOLEX MP5004+H03VV-F+VAC5S 1m...
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Users of this document should verify the applicable data for their specific environment. Trademarks The following terms are trademarks or registered trademarks of Lenovo in the United States, other countries, or both. Lenovo OneKey Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or both.