Hardware Maintenance Manual - Lenovo K2450 Notebook
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... 24 Power management 25 Power management 25 Checking the battery status 25 Using the ac power adapter 25 Charging the battery 26 Maximizing the battery life 26 Power-saving modes 26 Sleep mode 26 Hibernation mode 27 Shutting down the computer 27 Lenovo Zhao Yang K2450 28 Specifications 28 Features 28 Specifications 29 Status indicators...
... 24 Power management 25 Power management 25 Checking the battery status 25 Using the ac power adapter 25 Charging the battery 26 Maximizing the battery life 26 Power-saving modes 26 Sleep mode 26 Hibernation mode 27 Shutting down the computer 27 Lenovo Zhao Yang K2450 28 Specifications 28 Features 28 Specifications 29 Status indicators...
Hardware Maintenance Manual - Lenovo K2450 Notebook
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... broken, or sharp edges). 2. A third-wire ground connector in the parts list. Check inside the unit for any unsafe conditions are any non-Lenovo alterations. 7. This guide addresses only those items. You should be frayed or worn. 4. Checklist: 1. Check exterior covers for : a. Check that... in good condition. Check for worn, frayed, or pinched cables. 9. Check for cracked or bulging batteries. 5. Safety information Safety inspection guide The purpose of non-Lenovo features or options not covered by this inspection guide is to the safety of any potential unsafe conditions,...
... broken, or sharp edges). 2. A third-wire ground connector in the parts list. Check inside the unit for any unsafe conditions are any non-Lenovo alterations. 7. This guide addresses only those items. You should be frayed or worn. 4. Checklist: 1. Check exterior covers for : a. Check that... in good condition. Check for worn, frayed, or pinched cables. 9. Check for cracked or bulging batteries. 5. Safety information Safety inspection guide The purpose of non-Lenovo features or options not covered by this inspection guide is to the safety of any potential unsafe conditions,...
Hardware Maintenance Manual - Lenovo K2450 Notebook
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...fully effective. Attach the ESD ground clip to guard against ESD damage by a certified electrician. 6 When working on a double-insulated or battery-operated system, use coax or connectoroutside shells on ac-operated computers. Notes: 1. Grounding requirements Electrical grounding of a grounded work mat to... circuits (ICs) should be verified by equalizing the charge so that the machine, the part, the work surface. Lenovo ZhaoYang K2450 Hardware Maintenance Manual Handling devices that meets the specific service requirement. Make sure that the ESD protective devices you are...
...fully effective. Attach the ESD ground clip to guard against ESD damage by a certified electrician. 6 When working on a double-insulated or battery-operated system, use coax or connectoroutside shells on ac-operated computers. Notes: 1. Grounding requirements Electrical grounding of a grounded work mat to... circuits (ICs) should be verified by equalizing the charge so that the machine, the part, the work surface. Lenovo ZhaoYang K2450 Hardware Maintenance Manual Handling devices that meets the specific service requirement. Make sure that the ESD protective devices you are...
Hardware Maintenance Manual - Lenovo K2450 Notebook
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... AC adapter for correct continuity and installation. • If the computer does not charge during operation, use a discharged battery pack or a battery pack that the battery pack supplies power when you turn on, check the power cord of the following power supply checkouts: • "Checking...adapter" on page 21 • "Checking operational charging" on page 21 • "Checking the battery pack" on page 28. See the following : • Replace the system board. • If the problem persists, go to "Lenovo ZhaoYang K2450" on page 22 Checking the AC adapter You are servicing. 3.
... AC adapter for correct continuity and installation. • If the computer does not charge during operation, use a discharged battery pack or a battery pack that the battery pack supplies power when you turn on, check the power cord of the following power supply checkouts: • "Checking...adapter" on page 21 • "Checking operational charging" on page 21 • "Checking the battery pack" on page 28. See the following : • Replace the system board. • If the problem persists, go to "Lenovo ZhaoYang K2450" on page 22 Checking the AC adapter You are servicing. 3.
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If it ), and the percentage of its capacity. under this condition the battery pack can charge to 100% of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon. Lenovo ZhaoYang K2450 Hardware Maintenance Manual Perform operational charging. If the charge indicator still does not light on , remove...
If it ), and the percentage of its capacity. under this condition the battery pack can charge to 100% of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon. Lenovo ZhaoYang K2450 Hardware Maintenance Manual Perform operational charging. If the charge indicator still does not light on , remove...
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...There are two main factors: • How much energy is connected to the ac power connector of the following : 1. How bright you charge the battery, make the computer display? Attention: Using an improper power cord could cause severe damage to the transformer pack. 3. Connect the ac power adapter to the... transformer. • Before you make sure that plugs into the ac outlet and into an electrical outlet. 2. If the battery has not been used for use , disconnect it from the electrical outlet. • Do not bind the power cord tightly around the ac power...
...There are two main factors: • How much energy is connected to the ac power connector of the following : 1. How bright you charge the battery, make the computer display? Attention: Using an improper power cord could cause severe damage to the transformer pack. 3. Connect the ac power adapter to the... transformer. • Before you make sure that plugs into the ac outlet and into an electrical outlet. 2. If the battery has not been used for use , disconnect it from the electrical outlet. • Do not bind the power cord tightly around the ac power...
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... following: • Windows 7: 1. To wake up to the top-right or bottom-right corner of data. Lenovo ZhaoYang K2450 Hardware Maintenance Manual Charging the battery It is recommended that you charge the battery or replace it with a charged battery on any of the following conditions: • The percentage of the following: • Press the power...
... following: • Windows 7: 1. To wake up to the top-right or bottom-right corner of data. Lenovo ZhaoYang K2450 Hardware Maintenance Manual Charging the battery It is recommended that you charge the battery or replace it with a charged battery on any of the following conditions: • The percentage of the following: • Press the power...
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External monitor: Maximum 2048-by -768 - Lenovo ZhaoYang K2450 Display • Size: 317.5 mm (12.5 inches) • Resolution: - LCD: 1366-by -1536 • Camera • Built-in microphones Keyboard • 6-row Lenovo keyboard Interface • Combo audio jack • External monitor connector • HDMI connector • RJ45 Ethernet connector • USB 2.0 connector • USB... adapter) • Sine-wave input at 50 to 60 Hz • Input rating of ac power adapter: 100 to 240 V ac, 50 to 60 Hz Battery pack • Lithium-ion (Li-ion...
External monitor: Maximum 2048-by -768 - Lenovo ZhaoYang K2450 Display • Size: 317.5 mm (12.5 inches) • Resolution: - LCD: 1366-by -1536 • Camera • Built-in microphones Keyboard • 6-row Lenovo keyboard Interface • Combo audio jack • External monitor connector • HDMI connector • RJ45 Ethernet connector • USB 2.0 connector • USB... adapter) • Sine-wave input at 50 to 60 Hz • Input rating of ac power adapter: 100 to 240 V ac, 50 to 60 Hz Battery pack • Lithium-ion (Li-ion...
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... off the computer. • When the indicator is continuing. Sudden physical shock might continue until the battery is 100% charged. • Slow-blinking amber: The battery charge level is between 20% and 80%, and charging is on , the hard disk drive is ...operating normally. When the battery charge level reaches 80%, the battery status indicator stops blinking, but the charging might cause drive errors. Attention: • When the indicator is continuing. Lenovo ZhaoYang K2450 a Active Protection System™ (APS) status indicator •...
... off the computer. • When the indicator is continuing. Sudden physical shock might continue until the battery is 100% charged. • Slow-blinking amber: The battery charge level is between 20% and 80%, and charging is on , the hard disk drive is ...operating normally. When the battery charge level reaches 80%, the battery status indicator stops blinking, but the charging might cause drive errors. Attention: • When the indicator is continuing. Lenovo ZhaoYang K2450 a Active Protection System™ (APS) status indicator •...
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...they are listed at the top of the page. Attention: The system board is sensitive to, and can cause electrical short circuits. Lenovo ZhaoYang K2450 Removing and replacing an FRU This section presents exploded figures with one hand or using an electrostatic discharge (ESD) strap (P/N 6405959)...procedures and follow any of the interconnecting cables. Before replacing any of the notes that all power cords from electrical outlets, remove the battery pack, and then disconnect any FRU, review "FRU replacement notices" on page 63. 8. Metallic parts or metal flakes can be removed...
...they are listed at the top of the page. Attention: The system board is sensitive to, and can cause electrical short circuits. Lenovo ZhaoYang K2450 Removing and replacing an FRU This section presents exploded figures with one hand or using an electrostatic discharge (ESD) strap (P/N 6405959)...procedures and follow any of the interconnecting cables. Before replacing any of the notes that all power cords from electrical outlets, remove the battery pack, and then disconnect any FRU, review "FRU replacement notices" on page 63. 8. Metallic parts or metal flakes can be removed...
Hardware Maintenance Manual - Lenovo K2450 Notebook
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... 38 Holding the spring-loaded battery latch in the unlocked position b, remove the battery pack in the parts list for your computer. Figure 2. Removal steps of battery pack Unlock the manual battery latch a . Lenovo ZhaoYang K2450 Hardware Maintenance Manual 1020 Battery pack For access, remove this... FRU: • "1010 Keyboard" on page 36 DANGER • Only use the battery specified in the direction shown by...
... 38 Holding the spring-loaded battery latch in the unlocked position b, remove the battery pack in the parts list for your computer. Figure 2. Removal steps of battery pack Unlock the manual battery latch a . Lenovo ZhaoYang K2450 Hardware Maintenance Manual 1020 Battery pack For access, remove this... FRU: • "1010 Keyboard" on page 36 DANGER • Only use the battery specified in the direction shown by...
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e e e Step a Screw (quantity) Color M2.0 × 5 mm, flat-head, nylok-coated Black (3) Torque 1.85+/-0.15 kgfcm Insert the thin flat blade between the frame join near the ventilation slots, then carefully move the blade along the join to remove the back cover. 39 Lenovo ZhaoYang K2450 Figure 2. Removal steps of battery pack (continued) Remove three screws e .
e e e Step a Screw (quantity) Color M2.0 × 5 mm, flat-head, nylok-coated Black (3) Torque 1.85+/-0.15 kgfcm Insert the thin flat blade between the frame join near the ventilation slots, then carefully move the blade along the join to remove the back cover. 39 Lenovo ZhaoYang K2450 Figure 2. Removal steps of battery pack (continued) Remove three screws e .
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Torque 1.85+/-0.15 kgfcm c 40 Removal steps of battery pack (continued) Unplug the battery connector in the direction shown by arrow a first, then remove three screws b . b b a b Step Screw (quantity) Color c M2 × 5 mm, flat-head, nylok-coated (3) Black Remove the battery in the direction shown by arrow c . Lenovo ZhaoYang K2450 Hardware Maintenance Manual Figure 2.
Torque 1.85+/-0.15 kgfcm c 40 Removal steps of battery pack (continued) Unplug the battery connector in the direction shown by arrow a first, then remove three screws b . b b a b Step Screw (quantity) Color c M2 × 5 mm, flat-head, nylok-coated (3) Black Remove the battery in the direction shown by arrow c . Lenovo ZhaoYang K2450 Hardware Maintenance Manual Figure 2.
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... to backup all the information on page 38 Attention: • Do not drop the hard disk drive or apply any physical shock to physical shock. Lenovo ZhaoYang K2450 Hardware Maintenance Manual 1040 Hard disk drive For access, remove these FRUs in order: • "1010 Keyboard" on page 36 • "1020... Battery pack" on it if possible. • Never remove the drive while the system is operating or is sensitive to it. a Take out the hard disk ...
... to backup all the information on page 38 Attention: • Do not drop the hard disk drive or apply any physical shock to physical shock. Lenovo ZhaoYang K2450 Hardware Maintenance Manual 1040 Hard disk drive For access, remove these FRUs in order: • "1010 Keyboard" on page 36 • "1020... Battery pack" on it if possible. • Never remove the drive while the system is operating or is sensitive to it. a Take out the hard disk ...
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..., and pivot it until it is firmly fixed in the direction shown by arrow b. Lenovo ZhaoYang K2450 Hardware Maintenance Manual 1050 DIMM For access, remove these FRUs in order: • "1010 Keyboard" on page 36 • "1020 Battery pack" on both edges of the socket at the same time in the direction shown...
..., and pivot it until it is firmly fixed in the direction shown by arrow b. Lenovo ZhaoYang K2450 Hardware Maintenance Manual 1050 DIMM For access, remove these FRUs in order: • "1010 Keyboard" on page 36 • "1020 Battery pack" on both edges of the socket at the same time in the direction shown...
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...and gently unplug them in step a. wireless LAN card in some models may have 3 cables in order: • "1010 Keyboard" on page 36 • "1020 Battery pack" on page 38 Figure 6. Step Screw (quantity) a M2.0 × 3.0 mm, flat-head, nylok-coated (1) Color Torque P/N Black 1.85+/-0.15 kgfcm 101500325... 45 Removal steps of PCI Express Mini Card for wireless LAN/WAN and SSD card For access, remove these FRUs in step a. Lenovo ZhaoYang K2450 1060 PCI Express Mini Card for wireless LAN/WAN and SSD card Disconnect the two wireless LAN cables (black,white) a, and then remove...
...and gently unplug them in step a. wireless LAN card in some models may have 3 cables in order: • "1010 Keyboard" on page 36 • "1020 Battery pack" on page 38 Figure 6. Step Screw (quantity) a M2.0 × 3.0 mm, flat-head, nylok-coated (1) Color Torque P/N Black 1.85+/-0.15 kgfcm 101500325... 45 Removal steps of PCI Express Mini Card for wireless LAN/WAN and SSD card For access, remove these FRUs in step a. Lenovo ZhaoYang K2450 1060 PCI Express Mini Card for wireless LAN/WAN and SSD card Disconnect the two wireless LAN cables (black,white) a, and then remove...
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Lenovo ZhaoYang K2450 1070 System board Important notices for handling the system board: When handling the system board, bear the following in order: • "1010 Keyboard" on page 36 • "1020 Battery pack" on page 38 • "1030 Dummy card" on page 41 • "1040 Hard disk drive" on page 42 • "1050 DIMM...
Lenovo ZhaoYang K2450 1070 System board Important notices for handling the system board: When handling the system board, bear the following in order: • "1010 Keyboard" on page 36 • "1020 Battery pack" on page 38 • "1030 Dummy card" on page 41 • "1040 Hard disk drive" on page 42 • "1050 DIMM...
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b a e c d f g h k i j When installing: Make sure that all the connectors are attached firmly. 49 Removal steps of system board (continued) Unplug DC-IN cable connector in the direction a , back-up battery connector in the direction b , speaker connector in the direction e , microphone connector in the direction f , detach LED board connector in the directions c d ,touch pad connector in the directions g h , finger printer connector in the direction k . disconnect the LCD connector in the directions i j . Lenovo ZhaoYang K2450 Figure 7.
b a e c d f g h k i j When installing: Make sure that all the connectors are attached firmly. 49 Removal steps of system board (continued) Unplug DC-IN cable connector in the direction a , back-up battery connector in the direction b , speaker connector in the direction e , microphone connector in the direction f , detach LED board connector in the directions c d ,touch pad connector in the directions g h , finger printer connector in the direction k . disconnect the LCD connector in the directions i j . Lenovo ZhaoYang K2450 Figure 7.
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a When installing: Make sure that the fan connector is attached firmly to the system board. Loosen four screws b . b b b b 51 Removal steps of fan assembly and heat sink assembly Unplug the fan connector in order: • "1010 Keyboard" on page 36 • "1020 Battery pack" on page 38 • "1070 System board" on page 47 Figure 8. Lenovo ZhaoYang K2450 1080 Fan assembly and Heat Sink assembly For access, remove these FRUs in the direction shown by arrow a.
a When installing: Make sure that the fan connector is attached firmly to the system board. Loosen four screws b . b b b b 51 Removal steps of fan assembly and heat sink assembly Unplug the fan connector in order: • "1010 Keyboard" on page 36 • "1020 Battery pack" on page 38 • "1070 System board" on page 47 Figure 8. Lenovo ZhaoYang K2450 1080 Fan assembly and Heat Sink assembly For access, remove these FRUs in the direction shown by arrow a.
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... Torque 1.85+/-0.15 kgfcm When installing: • Route the antenna cables along the cable guides. 53 Lenovo ZhaoYang K2450 1090 LCD unit For access, remove these FRUs in order: • "1010 Keyboard" on page 36 • "1020 Battery pack" on page 38 • "1040 Hard disk drive" on page 42 • "1050 DIMM...
... Torque 1.85+/-0.15 kgfcm When installing: • Route the antenna cables along the cable guides. 53 Lenovo ZhaoYang K2450 1090 LCD unit For access, remove these FRUs in order: • "1010 Keyboard" on page 36 • "1020 Battery pack" on page 38 • "1040 Hard disk drive" on page 42 • "1050 DIMM...