Lenovo K49 Hardware Maintenance Manual
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- Lenovo K49 | Hardware Maintenance Manual - Page 1
Hardware Maintenance Manual ZhaoYang K49 - Lenovo K49 | Hardware Maintenance Manual - Page 2
and the product it supports, be sure to read the general information under Appendix A "Notices" on page 91. Fourth Edition (May 2013) © Copyright Lenovo 2012, 2013. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General Services Administration "GSA" contract, use - Lenovo K49 | Hardware Maintenance Manual - Page 3
Electrical safety 2 Safety inspection guide 3 Handling devices that are sensitive to electrostatic discharge 3 Grounding requirements 4 Safety notices (multilingual translations 4 Laser compliance statement (multilingual translations 19 Chapter 2. Important service information 27 Strategy for - Lenovo K49 | Hardware Maintenance Manual - Page 4
ii Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 5
, reference, and product-specific parts information. Important: • This manual is intended only for trained service technicians who are familiar with Lenovo products. Use this manual to troubleshoot problems effectively. • Before servicing a Lenovo product, be sure to read all the information under - Lenovo K49 | Hardware Maintenance Manual - Page 6
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presents following safety information that you need to be familiar with before you service a Lenovo Notebook. • "General safety" on page 1 • "Electrical safety" on page 2 • "Safety inspection guide" on page 3 • "Handling devices that are sensitive to electrostatic discharge" on page 3 • "Grounding - Lenovo K49 | Hardware Maintenance Manual - Page 8
safety precautions when you work with very high voltages; Instructions for these precautions are in the safety sections of such touching can cause personal injury and machine damage. • Do not service the following parts with the power on when they are removed from : 2 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 9
required safety items were installed to protect users and service technicians from injury. This guide addresses only those items. You should use good hazard could be and whether you can continue without first correcting the problem. Consider these conditions and the safety hazards they present: • - Lenovo K49 | Hardware Maintenance Manual - Page 10
grounding system, such as those listed below, to provide protection that meets the specific service requirement. Note: The use of a grounding system to guard against ESD damage is German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese DANGER DANGER 4 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 11
DANGER DANGER DANGER DANGER DANGER Chapter 1. Safety information 5 - Lenovo K49 | Hardware Maintenance Manual - Page 12
DANGER 6 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 13
Chapter 1. Safety information 7 - Lenovo K49 | Hardware Maintenance Manual - Page 14
PERIGO PERIGO PERIGO PERIGO PERIGO PERIGO 8 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 15
PERIGO PERIGO DANGER DANGER DANGER Chapter 1. Safety information 9 - Lenovo K49 | Hardware Maintenance Manual - Page 16
DANGER DANGER DANGER DANGER DANGER VORSICHT 10 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 17
VORSICHT VORSICHT VORSICHT VORSICHT Chapter 1. Safety information 11 - Lenovo K49 | Hardware Maintenance Manual - Page 18
VORSICHT VORSICHT VORSICHT 12 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 19
Chapter 1. Safety information 13 - Lenovo K49 | Hardware Maintenance Manual - Page 20
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Chapter 1. Safety information 15 - Lenovo K49 | Hardware Maintenance Manual - Page 22
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Chapter 1. Safety information 17 - Lenovo K49 | Hardware Maintenance Manual - Page 24
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Laser compliance statement (multilingual translations) The laser compliance statements in this section are provided in the following languages: • English • Arabic • Brazilian Portuguese • French • German • Hebrew • Japanese • Korean • Spanish • Traditional Chinese Chapter 1. Safety information 19 - Lenovo K49 | Hardware Maintenance Manual - Page 26
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Chapter 1. Safety information 21 - Lenovo K49 | Hardware Maintenance Manual - Page 28
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Chapter 1. Safety information 25 - Lenovo K49 | Hardware Maintenance Manual - Page 32
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This chapter presents the following important service information that applies to all machine types supported by this manual: • "Strategy for replacing FRUs" for replacing and servicing FRUs: • If you are instructed to replace a FRU but the replacement does not correct the problem, reinstall the - Lenovo K49 | Hardware Maintenance Manual - Page 34
this task. Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying Hardware Maintenance Manual or direct substitutions can be used. • Compliant FRUs identified in Hardware Maintenance Manual • Direct - Lenovo K49 | Hardware Maintenance Manual - Page 35
to the checkout guide, be sure to read the following important notes. Important notes: • Only certified trained personnel should service the computer. electrostatic discharge, or software errors. Consider replacing a FRU only when a problem recurs. If you suspect that a FRU is defective, clear the - Lenovo K49 | Hardware Maintenance Manual - Page 36
might be a symptom of unauthorized service or modification. • If the spindle turn on the computer. If you suspect a power problem, see the appropriate one of the following power of the ac power adapter may differ from the one you are servicing. 3. If the voltage is not correct, replace the ac power - Lenovo K49 | Hardware Maintenance Manual - Page 37
• If the problem persists, go to Chapter 5 "ZhaoYang K49" on page 37. Note: Noise from the ac power adapter does not always indicate a defect. Checking operational charging To - Lenovo K49 | Hardware Maintenance Manual - Page 38
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Chapter 4. Related service information This chapter presents the following information: • "Recovering the computer settings" on page 33 • "Passwords" on page 33 • "Power management" on page 34 Recovering the - Lenovo K49 | Hardware Maintenance Manual - Page 40
technician, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee. Power management Note: Power management modes are not supported for APM operating system. Fn key. • Open the LCD cover. • Turn on the power button. 34 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 41
hibernation file in the boot record on the hard disk drive is read, and system status is restored from the hard disk drive. Chapter 4. Related service information 35 - Lenovo K49 | Hardware Maintenance Manual - Page 42
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Chapter 5. ZhaoYang K49 This chapter presents the following product-specific service references and parts information: • "Specifications" on page 37 • "Status indicators" on page 38 • "Fn key combinations" on page 39 Specifications This topic lists the physical - Lenovo K49 | Hardware Maintenance Manual - Page 44
feature • Fingerprint reader (on some models) Status indicators This chapter presents the system status indicators that show the status of the computer. 1 2 3 4 38 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 45
Table 1. Status indicators Indicator 1 Battery status indicator 2 Device access status indicator 3 Wireless status indicator Meaning • Green: The battery charge level is between 80% and 100%, or the battery discharge level is between 20% and 100%. • Slow blinking green: The battery charge level is - Lenovo K49 | Hardware Maintenance Manual - Page 46
function. Fn + up/down arrow Increases or decreases the display brightness level. Fn + left/right arrow Decreases or increases the sound volume. 40 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 47
. You can find a list of CRUs for your product in this Hardware Maintenance Manual. An electronic version of this manual can be found at http://www.lenovo.com/UserManuals. Follow the on-screen instructions to find the manual for your product. You might be required to return the defective CRU. When - Lenovo K49 | Hardware Maintenance Manual - Page 48
to the torque specified in the screw information table for each step. • Ensure torque screw drivers are calibrated correctly following country specifications. 42 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 49
This chapter provides instructions on how to remove or replace a FRU. CRU statement for customers: You can resolve some problems with your product with a replacement part you can install yourself, called a "Customer Replaceable Unit" or "CRU." Some CRUs are designated as self-service CRUs and others - Lenovo K49 | Hardware Maintenance Manual - Page 50
authorized battery specified for your computer. Any other battery could ignite or explode. Unlock the battery latch 1 . Holding the other battery latch (manual) in the unlocked position 2 , remove the battery pack. 1 2 2 When installing: Install the battery pack in the slot. Make sure that the - Lenovo K49 | Hardware Maintenance Manual - Page 51
Removal steps of bottom slot cover Loosen the screws 1 and do not remove them. Then remove the cover 2 . 2 1 1030 Optical drive or blank bezel For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 Removal steps of optical drive or blank bezel - Lenovo K49 | Hardware Maintenance Manual - Page 52
FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 1 2 1 Color Black Torque 1.85 kgf-cm 46 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 53
firmly installed in the slot and does not move easily. Note: If only one memory module is to be installed on the computer you are servicing, the memory module must be installed in SLOT-0 ( a lower slot), but not in SLOT-1 ( b upper slot). b a 1050 Hard disk drive assembly For access, remove these - Lenovo K49 | Hardware Maintenance Manual - Page 54
from the slot 3 . 3 Color Black Torque 1.85 kgf-cm When installing: Make sure that the hard disk drive connector is attached firmly. 48 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 55
Removal steps of hard disk drive bracket Remove the screws 1 . 1 1 1 1 Step 1 Screw (quantity) M3 × 2.8 mm, flat-head, nylon-coated (4) Color Black Remove the hard disk drive bracket in the direction shown by the arrow 2 . 2 Torque 4.0 kgf-cm 1060 PCI Express Mini Card for wireless LAN For - Lenovo K49 | Hardware Maintenance Manual - Page 56
installing: Plug the black cable (MAIN) into the jack labeled M, and the white cable (AUX) into the jack labeled A on the card. 50 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 57
1070 mSATA solid-state drive (on some models) For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 Attention: • Do not drop the drive or apply any physical shock to it. The drive is sensitive to physical shock. Improper handling can cause - Lenovo K49 | Hardware Maintenance Manual - Page 58
" on page 44 Removal steps of thermal module Detach the fan connector 1 . 1 When installing: Make sure that the connector is attached firmly. 52 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 59
Loosen the screws 2 to 8 , and do not remove them. 7 8 2 6 5 4 3 Chapter 7. Removing and replacing a FRU 53 - Lenovo K49 | Hardware Maintenance Manual - Page 60
in the following illustration. Either too much or too less application of grease can cause a thermal problem due to imperfect contact with a component. a b 1090 CPU For access, remove these FRUs extremely sensitive. When you service the CPU, avoid any kind of rough handling. 54 Hardware Maintenance - Lenovo K49 | Hardware Maintenance Manual - Page 61
Removal steps of CPU Rotate the head of the screw in the direction shown by the arrow 1 to release the lock; then remove the CPU 2 . 1 a b 2 When installing: Place the CPU above the CPU socket a , and then rotate the head of the screw in the direction shown by the arrow b to secure the CPU. 1100 - Lenovo K49 | Hardware Maintenance Manual - Page 62
Black Torque 1.85 kgf-cm Push hard in the direction shown by the arrows 2 to unlatch the front side of the keyboard. 2 2 56 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 63
Detach the keyboard lightly 3 . Then remove the keyboard in the direction shown by the arrows 4 . 4 4 4 3 Chapter 7. Removing and replacing a FRU 57 - Lenovo K49 | Hardware Maintenance Manual - Page 64
44 • "1020 Bottom slot cover" on page 44 • "1030 Optical drive or blank bezel" on page 45 • "1100 Keyboard" on page 55 58 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 65
Removal steps of keyboard bezel Remove the screws 1 , 2 , and 3 that secure the keyboard bezel. 2 2 2 1 1 1 1 3 3 3 1 1 1 1 1 1 Step 1 2 3 Screw (quantity) M2 × 6 mm, flat-head, nylon-coated (10) M2 × 3 mm, flat-head, nylon-coated (3) M2 × 3 mm, flat-head, nylon-coated (3) Remove the - Lenovo K49 | Hardware Maintenance Manual - Page 66
Fingerprint board For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 60 Hardware Maintenance Manual 14 14 14 - Lenovo K49 | Hardware Maintenance Manual - Page 67
• "1030 Optical drive or blank bezel" on page 45 • "1100 Keyboard" on page 55 • "1110 Keyboard bezel" on page 58 Removal steps of fingerprint board Remove the screw 1 . Then remove the fingerprint board bracket 2 and fingerprint board 3 . 1 2 3 3 3 Step 1 Screw (quantity) M2 × 3 mm, flat-head, - Lenovo K49 | Hardware Maintenance Manual - Page 68
(quantity) M2 × 3 mm, flat-head, nylon-coated (1) Removal steps of microphone Peel off the mylar tapes 1 . Color Black Torque 1.85 kgf-cm 1 1 1 1 1 1 62 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 69
Remove the microphone in the direction shown by the arrow 2 . 2 2 1140 Power board For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 • "1030 Optical drive or blank bezel" on page 45 • "1100 Keyboard" on page 55 • "1110 Keyboard bezel" on - Lenovo K49 | Hardware Maintenance Manual - Page 70
page 44 • "1030 Optical drive or blank bezel" on page 45 • "1100 Keyboard" on page 55 • "1110 Keyboard bezel" on page 58 64 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 71
Removal steps of speaker assembly Detach LCD cable 2 . Then disconnect the speaker assembly connectors 3 and 4 . 2 1 3 4 Remove the screws 5 . Then remove the speaker assembly in the direction shown by the arrows 6 . 5 5 6 5 5 6 Step 5 Screw (quantity) M2.5 × 5.7 mm, flat-head, nylon-coated - Lenovo K49 | Hardware Maintenance Manual - Page 72
LCD cable 3 and speaker assembly connectors 4 and 5 . 3 2 4 5 1 1 1 Step 1 Screw (quantity) M2 × 3 mm, flat-head, nylon-coated (3) Color Black Torque 1.85 kgf-cm 66 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 73
Remove the system board in the direction shown by the arrow 6 . Then detach the and DC-in cable and USB cable connectors 7 and 8 . 6 7 8 1180 LCD unit For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 • "1030 Optical drive or blank - Lenovo K49 | Hardware Maintenance Manual - Page 74
Black Torque 1.6 kgf-cm When installing: • Route the antenna cables along the cable guides. As you route the cables, make sure that they are not subject to any tension . Tension could cause the cables to be damaged by the cable guides, or a wire to be broken. • Make sure that the LCD - Lenovo K49 | Hardware Maintenance Manual - Page 75
Remove the LCD unit in the direction shown by the arrows 2 . 2 2 1190 DC-in bracket, DC-in cable, USB bracket, USB cable, and base cover For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1020 Bottom slot cover" on page 44 • "1030 Optical drive or blank bezel" on page 45 • " - Lenovo K49 | Hardware Maintenance Manual - Page 76
1.85 kgf-cm When installing: Make sure that the screws are fastened to the base cover and the USB bracket is secured. 70 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 77
Applying labels to the base cover The new base cover is shipped with a kit containing labels of several kinds. Apply those labels listed when you replace the base cover. For the labels which are not shipped with the new base cover, peel them off from the old base cover, and adhere them to the new - Lenovo K49 | Hardware Maintenance Manual - Page 78
2 . Torque 1.85 kgf-cm 2 2 2 2 When installing: Make sure that all the latches are attached firmly. Then secure the bezel with the screws. 72 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 79
2020 Integrated camera For access, remove these FRUs in order: • "1010 Battery pack" on page 44 • "1180 LCD unit" on page 67 • "2010 LCD front bezel" on page 71 Removal steps of integrated camera Remove the integrated camera from the LCD cover as shown in the following illustration. Note: The - Lenovo K49 | Hardware Maintenance Manual - Page 80
as shown in the following illustration. Color Silver Torque 1.85 kgf-cm 4 3 When installing: Make sure that the connector is attached firmly. 74 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 81
Removal steps of hinges Remove the screws 1 and release the antenna cables from cable guides 2 . Then remove the hinges in the direction shown by the arrows 3 . 1 3 1 1 1 3 1 1 2 2 Step 1 Screw (quantity) M2 × 3 mm, flat-head, nylon-coated (6) 2040 Hinges For access, remove - Lenovo K49 | Hardware Maintenance Manual - Page 82
Removal steps of hinges Remove the screws 1 and release the antenna cables from cable guides 2 . Then remove the hinges in the direction shown by the arrows 3 . 1 3 1 1 1 3 1 1 2 2 Step 1 Screw (quantity) M2 LCD cable" on page 73 Color Black Torque 1.85 kgf-cm 76 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 83
on the LCD cover assembly and from the hinges in the direction shown by the arrows 1 . 1 1 Cable routing: Route the antenna cables along the cable guides and secure the antenna boards with adhesive tapes. As you route the cables, make sure that they are not subject to any tension. Tension could - Lenovo K49 | Hardware Maintenance Manual - Page 84
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Chapter 8. Locations This chapter introduces the location of the hardware components on ZhaoYang K49 models. Front view 2 1 2 13 12 11 3 10 4 9 8 7 5 6 1 Integrated camera (on some models) 2 Wireless module antennas 3 Mute button 4 APS button 5 Speakers (right) 6 Fingerprint reader (on some - Lenovo K49 | Hardware Maintenance Manual - Page 86
Right-side view 1 USB connector 2 Optical drive or blank bezel Figure 2. ZhaoYang K49 right-side view 1 2 3 4 3 USB/eSATA combo connector 4 Combo audio jack 80 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 87
Bottom and left-side view 1 2 3 4 5 10 6 7 98 1 Battery latch (manual) 2 Battery pack 3 Battery latch (spring-loaded) 4 Security keyhole 5 Fan louvers 6 Monitor connector 7 RJ45 Ethernet connector 8 HDMI port 9 USB 3.0 connectors 10 Bottom slot cover1 1 The memory - Lenovo K49 | Hardware Maintenance Manual - Page 88
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responsibility; you may request that Lenovo installs an Optional-service CRU according to the warranty service for your product. Where you are installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo - Lenovo K49 | Hardware Maintenance Manual - Page 90
88. 1 LCD unit (see "LCD FRUs" on page 86) 2 LLP Power Board 3 LLP Function Board 4 LLP Upper Case W/TP 5 LLP FingerPrint Board 84 Hardware Maintenance Manual 1 2 a b 3 4 c 5 d 6 7 8 e f 9 g 10 h i j 11 FRU No. CRU ID 90000350 N 90000351 N 90201078 N 90000349 N - Lenovo K49 | Hardware Maintenance Manual - Page 91
Table 3. Parts list-Overall (continued) No. FRU (Overall) 6 Battery pack, 6 cell, 2.2 Ah 6 Battery pack, 6 cell, 2.8 Ah 7 LLP Speaker L 8 LLP Speaker R 9 LLP Lower Case 10 Optical drive, 12.7 mm, Rambo 10 Blank bezel 11 LLP RAM Door 12 SATA hard disk drive, 320 G, 5400 rpm 12 SATA hard disk drive, - Lenovo K49 | Hardware Maintenance Manual - Page 92
models use a 14-inch, high-definition (HD), light-emitting diode (LED), liquid-crystal display (LCD). (Table 4 "Parts list - LCD" on page 87). 86 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 93
8 7 6 Table 4. Parts list - LCD No. FRU 1 LLP LCD Bezel W/Camera hole 2 LLP Hinge L+R 3 LLP Antenna R 4 LSS Camera 1M 5 LLP LCD Cover W/Sponge 6 LLP LCD Cable 7 LLP Antenna L 8 LCD module, 14.0-inch, HD, anti-glair 1 2 3 4 5 FRU No. 90201072 90201077 90201080 90000319 90201071 90201063 90201079 - Lenovo K49 | Hardware Maintenance Manual - Page 94
36001942 CRU ID N Power cords A Lenovo power cord for a specific country or region is usually available only in that country or region. 88 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 95
Table 9. Parts list - 3-pin power cords Country or region China FRU No. CRU ID 145000600 N 145000568 145000538 Chapter 9. Parts list 89 - Lenovo K49 | Hardware Maintenance Manual - Page 96
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evaluate and verify the operation of any other product, program, or service. Lenovo may have patents or pending patent applications covering subject matter document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons - Lenovo K49 | Hardware Maintenance Manual - Page 98
Class B digital devices, refer to the corresponding information in the User Guide. EU contact: Lenovo, Einsteinova 21, 851 01 Bratislava, Slovakia Trademarks countries, or both. Other company, product, or service names may be the trademarks or service marks of others. 92 Hardware Maintenance Manual - Lenovo K49 | Hardware Maintenance Manual - Page 99
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Hardware Maintenance Manual
ZhaoYang K49