Lenovo Flex 3 Service Manual
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17 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. • Some computers have both a processor board and a system board. If you are instructed to replace either of them, and replacing one of them does not solve the problem, reinstall that board, and then replace the other...
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18 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/ Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual Important information about replacing RoHS compliant FRUs RoHS, The Restriction of Hazardous Substances in Electrical and 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...
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19 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: • Only certified trained personnel can service the computer. • Before replacing any FRU, read the entire page on removing and replacing FRUs. • Carefully remove screws for reuse when replacing FRUs. • Be extremely careful during such...
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20 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/ Flex 3-1570 (HSW)/Flex 3-1535 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. Date of service 3. Date on which the machine failed 4. Date of purchase 5. Procedure index and page number in which the failing FRU was detected 6. Failing FRU name...
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21 General checkout Power system checkout To verify a symptom, follow the steps below: 1. Turn off the computer. 2. Remove the battery pack. 3. Connect the AC adapter. 4. Make sure that power is supplied when you turn on the computer. 5. Turn off the computer. 6. Disconnect the AC adapter and install the charged battery pack. 7. Make sure that the battery pack supplies power when you turn on the computer. If you suspect a power problem, see the appropriate one of the following power supply...
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22 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/ Flex 3-1570 (HSW)/Flex 3-1535 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 has less than 50% of the total power remaining when installed in the computer. Perform operational charging. If the battery status indicator or icon does not light on, remove the battery pack and let it...
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23 Related service information Related service information This chapter presents the following information: • “Restoring the factory contents by using OneKey Recovery ” on page 23 • “Passwords ” on page 24 • “Power management ” on page 25 Restoring the factory contents by using OneKey Recovery Restore of factory default The Lenovo Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/ Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 computers come with pre-installed OneKey Recovery System. In order to save...
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24 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/ Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual 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 administrator password. If any of these passwords has been set, a prompt for it appears on the screen whenever the computer is turned on. The computer does not start until the password is entered. Power-on...
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25 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 shut down. Screen blank state If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off. You can also turn off the LCD backlight by pressing F9 . To end screen blank state and resume normal...
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26 Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/Flex 3-1475/Flex 3-1570/ Flex 3-1570 (HSW)/Flex 3-1535 Hardware Maintenance Manual Lenovo Flex 3-1470/Flex 3-1470 (HSW)/Flex 3-1435/ Flex 3-1475/Flex 3-1570/Flex 3-1570 (HSW)/Flex 3-1535 This chapter presents the following product-specific service references and product-specific parts information: • “Specifications ” on page 26 • “Status indicators ” on page 28 • “Fn key combinations/Hotkeys ” on page 29 • “FRU replacement notices ” on page 30 •...