Lenovo Yoga 3 Service Manual
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27 Lenovo YOGA 3 Pro-1370 Table 1. Specifications (continued) FeatureDescription Audio • 1/8" Stereo Headphone Output & Microphone input combo jack • Integrated Speakers Stereo × 2 • Built-in microphone × 2 PCI Express Mini Card slot Intel 802.11 A/C 2×2 Bluetooth wireless Combined in combo card Keyboard 5 Rows, ISO Full Size Keyboard, Back-light Touch pad Multi-touch type Integrated camera 1.0 Mega or 720P HD Battery Li-Polymer, 44 Wh AC adapter 20 V, 40 W Pre-installed operating system Win8.1 (Windows Blue) (×64)
28 Lenovo YOGA 3 Pro-1370 Hardware Maintenance Manual Status indicators The system status indicators below show the computer status: a b Power button and power status indicator Press this button to turn on the computer. Indicator Indicator status Meaning Power status indicator On (solid white) The computer is powered on. Blinking The computer is in sleep mode. Off The computer is powered off or in hibernation mode. Battery status indicator Indicator Indicator status Meaning Battery status indicator On (solid white) The battery has more than 20% charge. Solid amber The battery has between 5% and 20% charge. Fast blinking amber The battery has less than 5% charge. Slow blinking amber The battery is being charged. When battery charge reaches 20%, the blinking color changes to white. Slow blinking white The battery has between 20% and 80% charge and is still charging. When the battery reaches 80% charge the light will stop blinking, but charging will continue until the battery is fully charged.a b
29 Lenovo YOGA 3 Pro-1370 Fn key combinations The following describes the features of each function key. Fn + Esc: Switches to paper display mode. Fn + 1: F1 Fn + 2: F2 Fn + 3: F3 Fn + 4: F4 Fn + 5: F5 Fn + 6: F6 Fn + 7: F7 Fn + 8: F8 Fn + 9: F9 Fn + 0: F10 Fn + -: F11 Fn + =: F12 Fn + Backspace: Closes the currently active window. Fn + Delete: Enables/disables the touch pad. Fn + `: Turns on/off the backlight of the LCD screen. Fn + PgUp: Activates the pause function. Fn + PgDn: Activates the break function. Fn + PrtSc: Mutes/unmutes the sound. Fn + ↑ / ↓: Increases/decreases display brightness. Fn + → / ←: Increases/decreases sound volume. Fn + Space: Enable/Disable the keyboard backlight. Note: If you changed the HotKey Mode from Disabled to Enabled in the BIOS setup utility , there is no need to press the Fn key. Only press the appropriate hotkey.
30 Lenovo YOGA 3 Pro-1370 Hardware Maintenance Manual FRU replacement notices 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: • They maintain tight connections. • They do not easily come loose, even with shock or vibration. • They are harder to tighten. Do the following when you service this machine: • Keep the screw kit in your tool bag. • Carefully remove screws for reuse when replacing FRUs. • Use a torque screwdriver if you have one. Tighten screws as follows: • Plastic to plastic Turn an additional 90° after the screw head touches the surface of the plastic part: more than 90° (Cross-section) • Logic card to plastic Turn an additional 180° after the screw head touches the surface of the logic card: more than 180° (Cross-section) • Torque driver If you have a torque screwdriver , refer to the “Torque” column for each step. • Make sure that you use the correct screws. If you have a torque screwdriver, tighten all screws firmly to the torque shown in the table. Carefully remove screws for reuse when replacing FRUs. Make sure that all screws are tightened firmly. • Ensure torque screwdrivers are calibrated correctly following country specifications.
31 Lenovo YOGA 3 Pro-1370 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. An untrained person runs the risk of damaging parts. 2. Before replacing any FRU, review “FRU replacement notices” on page 31. 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. 4. Follow the correct sequence in the steps to remove the FRU, as given in the figures by the numbers in square callouts. 5. When turning a screw to replace an FRU, turn it in the direction as given by the arrow in the figure. 6. When removing the FRU, move it in the direction as given by the arrow in the figure. 7. To put the new FRU in place, reverse the removal procedures and follow a n y o f t h e n o t e s t h a t p e r t a i n t o r e p l a c e m e n t . F o r i n f o r m a t i o n a b o u t connecting and arranging internal cables, see “Locations” on page 58. 8. When replacing an FRU, use the correct screw as shown in the procedures. DANGER Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any of the interconnecting cables. Attention: After replacing an FRU, do not turn on the computer until you have made sure that all screws, springs, and other small parts are in place and none are loose inside the computer. Verify this by shaking the computer gently and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits. A t t e n t i o n : T h e s y s t e m b o a r d i s s e n s i t i v e t o , a n d c a n b e d a m a g e d b y, electrostatic discharge. Before touching it, establish personal grounding by touching a ground point with one hand or using an electrostatic discharge (ESD) strap (P/N 6405959) to remove potential shock reasons.
32 Lenovo YOGA 3 Pro-1370 Hardware Maintenance Manual 1010 Base cover Figure 1. Removal steps of base cover Remove the screws 1. Then remove the base cover 2. 11 1 1 1 1 1 1 1 1 2 StepScrew (quantity) ColorTorque P/N 1M2 × 3.3 mm, Torx, nylok-coated (10) Silver 2.0~2.5 kgf*cm MA00000T6G0
33 Lenovo YOGA 3 Pro-1370 Note: Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. When you replace the base cover, you need to apply the following labels: The following labels need to be peeled off from the old base cover and put on the new base cover. a Rating label (WW or China) b Rating label print c BT label for US/CA/TW/Brazil/Indonesia/Israel/Malaysia d WLAN label for US/CA/TW/Brazil/Indonesia/Israel/Malaysia e KCC label f Indonesia D side label For some models, you also need to apply one or two FCC labels. Check the old base cover; if it has one or two FCC labels, find duplicates of them in the label kit and apply them to the new base cover. For the location of each label, refer to the following figure: ad efbc
34 Lenovo YOGA 3 Pro-1370 Hardware Maintenance Manual 1020 Battery pack For access, remove this FRU: • “1010 Base cover” on page 33 DANGER Only use the battery specified in the parts list for your computer. Any other battery could ignite or explode. Figure 2. Removal steps of battery pack Unplug the battery connector 1 and remove the screws 2. Then remove the battery pack in the direction shown by arrow 3. 2 22 21 3 2 2 Step Screw (quantity) ColorTorque 2M2 × 3.5 mm, cross-head, nylok-coated (6) Black 1.5~2.0 kgf*cm When installing: Make sure that the battery connector is attached firmly.
35 Lenovo YOGA 3 Pro-1370 1030 PCI Express Mini Card for wireless LAN For access, remove these FRUs in order: • “1010 Base cover” on page 33 • “1020 Battery pack” on page 35 Figure 3. Removal steps of PCI Express Mini Card for wireless LAN Disconnect the two wireless LAN cables (black, white) 1, and then remove the screw 2. 1 3 2 Step Screw (quantity) ColorTorque 2M2 × 2.5 mm, cross-head, nylok-coated (1) Black1.5~2.0 kgf*cm Remove the card in the direction shown by arrow 3. 1 3 2
36 Lenovo YOGA 3 Pro-1370 Hardware Maintenance Manual In step 1, unplug the jacks by using the removal tool antenna RF connector (P/N: 08K7159), or pick up the connectors with your fingers and gently unplug them in the direction shown by the arrows. Notes: The wireless LAN card has 2 cables in step 1. The wireless LAN card in some models might have 3 cables in step 1. 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. • In models with a wireless LAN card that has three antenna connectors, plug the black cable (1st) (MAIN) into the jack labeled 1, the grey cable (3rd) into jack labeled 3, and the white cable (2nd) (AUX) into jack labeled 2 on the card.