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Preface Notebook Computer N350TW Service Manual...
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Preface Notice The company reserves the right to revise this publication or to change its contents without notice. Information contained herein is for reference only and does not constitute a commitment on the part of the manufacturer or any subsequent ven- dor.
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This manual is intended for service personnel who have completed sufficient training to undertake the maintenance and inspection of personal computers. It is organized to allow you to look up basic information for servicing and/or upgrading components of the N350TW se- ries notebook PC.
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Preface IMPORTANT SAFETY INSTRUCTIONS Follow basic safety precautions, including those listed below, to reduce the risk of fire, electric shock and injury to per- sons when using any electrical equipment: 1. Do not use this product near water, for example near a bath tub, wash bowl, kitchen sink or laundry tub, in a wet basement or near a swimming pool.
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Preface Instructions for Care and Operation The notebook computer is quite rugged, but it can be damaged. To prevent this, follow these suggestions: Don’t drop it, or expose it to shock. If the computer falls, the case and the components could be damaged. Do not expose the computer Do not place it on an unstable Do not place anything heavy...
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Preface Avoid interference. Keep the computer away from high capacity transformers, electric motors, and other strong mag- netic fields. These can hinder proper performance and damage your data. Take care when using peripheral devices. Use only approved brands of Unplug the power cord before peripherals.
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Preface Battery Precautions • Only use batteries designed for this computer. The wrong battery type may explode, leak or damage the computer. • Do not continue to use a battery that has been dropped, or that appears damaged (e.g. bent or twisted) in any way. Even if the computer continues to work with a damaged battery in place, it may cause circuit damage, which may possibly result in fire.
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Preface Related Documents You may also need to consult the following manual for additional information: User’s Manual on CD/DVD This describes the notebook PC’s features and the procedures for operating the computer and its ROM-based setup pro- gram. It also describes the installation and operation of the utility programs provided with the notebook PC. System Startup ...
Preface Contents Introduction ..........1-1 Top ....................A-3 Bottom ................... A-4 Overview ..................1-1 DVD ....................A-5 Specifications ..................1-2 LCD ....................A-6 External Locator - Top View with LCD Panel Open ......1-4 MB ....................A-7 External Locator - Front & Right Side Views .........1-5 Schematic Diagrams.........
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Preface USB Port ..................B-26 Updating the FLASH ROM BIOS..C-1 3G/LTE ..................B-27 Download the BIOS ................C-1 TPM, CCD, HDD, ODD .............. B-28 Unzip the downloaded files to a bootable CD/DVD/ or WLAN ..................B-29 USB Flash drive ................C-1 KBC-ITE IT8587 .................
Chapter 1: Introduction Overview This manual covers the information you need to service or upgrade the N350TW series notebook computer. Information about operating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. Information about dri- vers (e.g.
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Introduction Interface Temperature ° ° Operating: 5 C - 35 One USB 2.0 Port Non-Operating: -20°C - 60°C Two USB 3.0 (USB 3.1 Gen 1) Type-A Ports (Including one Relative Humidity AC/DC Powered USB Port) Operating: 20% - 80% One USB 3.1 Gen 2 Type-C Port* Non-Operating: 10% - 90% *The maximum amount of current supplied by USB Type-C ports is 500mA (USB 2.0)/900mA (USB 3.1).
Introduction External Locator - Top View with LCD Panel Open Figure 1 Top View 1. PC Camera (Optional) 2. *PC Camera LED *When the PC camera is in use, the LED will be illuminated in red. 3. Built-In Array Microphone 4.
Introduction External Locator - Front & Right Side Views Figure 2 Front View 1. LED Indicator FRONT VIEW Figure 3 Right Side View 1. USB 2.0 Port 2. Microphone-In Jack RIGHT SIDE VIEW 3. Headphone and S/PDIF Out Combo Jack 4.
Introduction External Locator - Left Side & Rear View Figure 4 Left Side View 1. DC-In Jack 2. External Monitor Port LEFT SIDE VIEW 3. RJ-45 LAN Jack 4. Powered USB 3.0 Port 5. USB 3.0 Port 6. Vent 7. HDMI-Out Port 8.
Introduction External Locator - Bottom View Figure 6 Bottom View 1. Battery 2. Docking Port 3. Vent 4. Component Bay Cover 5. Speakers Overheating To prevent your com- puter from overhea- ting, make sure no- thing blocks any vent while the computer is in use.
Chapter 2: Disassembly Overview This chapter provides step-by-step instructions for disassembling the N350TW series notebook’s parts and subsystems. When it comes to reassembly, reverse the procedures (unless otherwise indicated). We suggest you completely review any procedure before you take the computer apart.
Disassembly NOTE: All disassembly procedures assume that the system is turned OFF, and disconnected from any power supply (the battery is removed too). Maintenance Tools The following tools are recommended when working on the notebook PC: • M3 Philips-head screwdriver •...
Disassembly Maintenance Precautions The following precautions are a reminder. To avoid personal injury or damage to the computer while performing a removal and/or replacement job, take the following precautions: Power Safety Don't drop it. Perform your repairs and/or upgrades on a stable surface. If the computer falls, the case and other components Warning could be damaged.
Disassembly Disassembly Steps The following table lists the disassembly steps, and on which page to find the related information. PLEASE PERFORM THE DISASSEMBLY STEPS IN THE ORDER INDICATED. To remove the Battery: To remove and install the M.2 SSD Module: 1.
Disassembly Removing the Battery Figure 1 Battery Removal 1. Turn the computer off, and turn it over. 2. Slide the latch in the direction of the arrow (Figure 1a a. Slide the latch and hold it 3. Slide the latch in the direction of the arrow, and hold it in place (Figure 1a in place.
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Disassembly Removing and Installing the Hard Disk Drive Figure 2 HDD Assembly Hdd Removal Procedure Removal The hard disk drive can be taken out to accommodate other 2.5" serial (SATA) hard disk drives with a height of 9.5mm a. Remove the screws. (h).
Disassembly 4. Remove the screw from the hard disk assembly (Figure 3d Figure 3 5. Slightly lift and pull the hard disk assembly in the direction of arrow (Figure 3b HDD Assembly 6. Lift the hard disk assembly out of the bay (Figure 3c Removal (cont’d.) 7.
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Disassembly Hard Disk Size Note (Foam Rubber Insert) Note that the hard disks pictured on the following pages are all 9.5mm(H) hard disk drives. In some cases 7mm(H) hard disk drives will be installed. Figure 4 Foam Rubber Insert for 7mm(H) HDDs •...
Disassembly Removing the System Memory (RAM) Figure 5 RAM Module The computer has two memory sockets for 204 pin Small Outline Dual In-line Memory Modules (SO-DIMM) supporting Removal DDR3L Up to 1600 MHz. The main memory can be expanded up to 16GB. The total memory size is automatically de- tected by the POST routine once you turn on your computer.
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Disassembly 4. The RAM modules will be visible at point on the mainboard. 5. Gently pull the two release latches ( & ) on the sides of the memory socket in the direction indicated by the Figure 6 arrows (Figure 6d).
Disassembly Removing and Installing a Processor Processor Removal Procedure Figure 7 1. Turn off the computer, turn it over, and remove the battery (page 2 - 5), component bay cover (page 2 - 6) and Processor Removal (page 2 - 2.
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Disassembly 5. Press down and hold the latch (with the latch held down you will be able to release it). Figure 8 6. Move the latch and bracket fully in the direction indicated to unlock the CPU(Figure 8c). Processor Removal 7.
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Disassembly Processor Installation Procedure Figure 9 Processor 1. Insert the CPU (Figure 9a), pay careful attention to the pin alignment, it will fit only one way (DO NOT FORCE Installation IT!) (Figure 9a). 2. Move the bracket and latch fully in the direction indicated to lock the CPU. 3.
Disassembly Removing the 3G Module Figure 10 3G Module Removal 1. Turn off the computer, turn it over, and remove the battery (page 2 - 5) and the component bay cover (page 2 - 2. Carefully disconnect the cables & , and then remove the screw (Figure 10a)
Disassembly Removing the Wireless LAN Module Figure 11 Wireless LAN 1. Turn off the computer, turn it over, and remove the battery (page 2 - 5) and the component bay cover (page 2 - Module Removal 2. Carefully disconnect the cables , and then remove the screw (Figure 11a)
Disassembly Wireless LAN, Combo, 3G & LTE Module Cables Note that the cables for connecting to the antennae on WLAN, WLAN & Bluetooth Combo, 3G and LTE modules are not labelled. The cables/covers (each cable will have either a black or transparent cable cover) are color coded for iden- tification as outlined in the table below.
Disassembly Removing and Installing the M.2 SSD Module Figure 12 M.2 SSD Module M.2 SSD Removal Procedure Removal 1. Turn off the computer, turn it over, and remove the battery (page 2 - 5) and the component bay cover (page 2 - 2.
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Disassembly M.2 SSD Installation Procedure Figure 13 M.2 SSD Module 1. Place the thermal pad on the mainboard as shown (Figure 13a). Installation 2. Insert the module in the computer Figure 13b 3. Tighten the screw to secure the module in place (Figure 13c) a.
Disassembly Removing the Optical Device Figure 14 ODD Removal 1. Turn off the computer, turn it over, and remove the battery (page 2 - 5) and the component bay cover (page 2 - 2. Remove the screw at point , and use a screwdriver to carefully push out the optical device at point a.
Disassembly Removing the Keyboard Figure 15 Keyboard Removal 1. Turn off the computer, remove the battery (page 2 - 5), and the component bay cover (page 2 - 2. Remove screws from the bottom of the computer. a. Remove screws from the bottom of the computer.
Appendix A:Part Lists This appendix breaks down the N350TW series notebook’s construction into a series of illustrations. The component part numbers are indicated in the tables opposite the drawings. Note: This section indicates the manufacturer’s part numbers. Your organization may use a different system, so be sure to cross-check any relevant documentation.
Part List Illustration Location The following table indicates where to find the appropriate part list illustration. Table A - 1 Part List Illustration Part Location page A - 3 Bottom page A - 4 page A - 5 page A - 6 page A - 7 A - 2...
Schematic Diagrams Appendix B: Schematic Diagrams This appendix has circuit diagrams of the N350TW notebook’s PCB’s. The following table indicates where to find the appropriate schematic diagram. Diagram - Page Diagram - Page Diagram - Page Table B - 1...
Schematic Diagrams CRT PORT 3.3VS CRT Conn. 1.2V_LDO_EN Del,0507 max RTD2168 4.7K_04 Ra R1496 pull up VCCK_V12 from LDO enable Docking Rb R1497 pull down VCCK_V12 from external C348 0.1u_6.3V_X5R_02 POWER C347 2.2u_6.3V_X5R_04 3.3VS 4.7K_04 add,0507 max 3.3VS AVCC33 C350 0.1u_6.3V_X5R_02 2.2K_04 Z1301...
BB44 INTRUDER# GPP_D21/SPI1_IO2 INTRUDER# VCC_RTC R657 1M_04 CNP_H_IP_CFL/BGA 1 OF 13 TV:(Q370,w/ VPRO) N350TV :32MB*1 TW:(H370,w/o VPRO) N350TW :16MB*1 PJ47 modify,0717 max VDD3 SPI_3.3V modify,0717 max SHORT BIOS ROM to EC TW ROM TV ROM SPI_3.3V SPI_3.3V SPI_* = 1.5"~6.5"...
! ! ! !!DMFWP!DP/ 6-03-00370-0F2 ME+Bios Title Title Title H370 MP W25Q128JVSIQ [22] INTEL LAN i219-LM [22] INTEL LAN i219-LM [22] INTEL LAN i219-LM N350TW I219V MP 6-04-25128-A74 non-VPRO Size Size Size Document Number Document Number Document Number 6-03-00370-0F0 6-03-00219-031...
Schematic Diagrams USB Port USB CHARGER PORT :49 pcs SLG55593VTR USB Charging PORT modify,0525 max Smart CDP Function pin8 pin4 W/ USB CHARGER 22u_6.3V_X5R_06 DCP autodetect with VDD5 22u_6.3V_X5R_06 mouse/keyboard wake up USBVCC_CH 100mils 100mils S0 Charging with SDP *EEFCX0J221YR For W/ or W/O Intel Vpro modify,0512 max USBVCC_CH...
Schematic Diagrams PI3WVR13612ZLE 3.3VS At least 1pc 4.7uF and 2pc 0.1uF decoupling capacitors are recommended. C1141 Each decoupling capacitor should C408 C410 be connected to PCB power plane 4.7u_6.3V_X5R_04 0.1u_10V_X7R_04 0.1u_10V_X7R_04 via shortest path. DA_TX0_N 11 DA_TX0_P 11 DA_TX1_N 11 DA_TX1_P 11 C1140 0.01u_16V_X7R_04...
Schematic Diagrams Smart Card Board Layout note USB SMART CARD SCard0Rst / SCard0Data / SCard0Clk don't going through too much Via, and needs to surround with GND max data trace is round 1~1.2" CXTAL0 CXTAL1 *1M_04 CGND PCBA CHECK CGND *HSX321G_12Mhz 1CR1 *0_04...
Download the BIOS computer model. 1. Go to www.clevo.com.tw and point to E-Services and click E-Channel. Note that BIOS versions 2. Use your user ID and password to access the appropriate download area (BIOS), and download the latest BIOS files...
BIOS Update Use the flash tools to update the BIOS 1. Make sure you are not loading any memory management programs such as HIMEM by holding the F8 key as you see the message “Starting MS-DOS”. You will then be prompted to give “Y” or “N” responses to the programs being loaded by DOS.