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Preface Notebook Computer N750BU 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 N750BU 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.
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...
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.
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.
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 Part List Illustration Location ............A-2 Top ....................A-3 Overview ..................1-1 Bottom ................... A-4 Specifications ..................1-2 LCD ....................A-5 External Locator - Top View with LCD Panel Open ......1-4 HDD ....................A-6 External Locator - Front & Right Side Views .........1-5 HDD Caddy ...................
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Preface ASM 1142 Power ................. B-23 USB ....................B-24 CCD, MIC, LID, I/O Connector ..........B-25 HDD, ODD, LED ................. B-26 KBC ITE IT8587 ................B-27 3V, 5V, 3VS, 5VS, CTL Signal ........... B-28 VDD3, VDD5 ................B-29 VDDQ_VTT, 1.8VA ..............B-30 1.0V Series ...................
Chapter 1: Introduction Overview This manual covers the information you need to service or upgrade the N750BU 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.
Introduction External Locator - Top View with LCD Panel Open Figure 1 Top View 1. PC Camera 2. *PC Camera LED *When the PC camera is in use, the LED will be illuminated in red. 3. Built-In Microphone 4. LCD 5.
Introduction External Locator - Front & Right Side Views Figure 2 Front View 1. LED Indicators 2. Multi-in-1 Card Reader FRONT VIEW Figure 3 Right Side View 1. Headphone-Out RIGHT SIDE VIEW Jack 2. Microphone-In Jack 3. USB 2.0 Ports 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. Vent 5. HDMI-Out Port 6. USB 3.0/3.1 Port 7. USB 3.0/3.1 Type C Port Figure 5 REAR VIEW...
Introduction Mainboard Overview - Top (Connectors) Figure 9 Mainboard Top Connectors 1. DC-In Jack 2. External Monitor Port 3. RJ-45 LAN Jack 4. HDMI-Out Port 5. USB Port 3.0/3.1 Port 6. USB Port 3.0/3.1 Type C Port 7. Keyboard Cable Connector 1 - 10 Mainboard Overview - Top (Connectors)
Chapter 2: Disassembly Overview This chapter provides step-by-step instructions for disassembling the N750BU 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 re- moval and/or replacement job, take the following precautions: Power Safety Warning 1. Don't drop it. Perform your repairs and/or upgrades on a stable surface. If the computer falls, the case and other Before you undertake components 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 the Wireless LAN Module: 1. Remove the battery page 2 - 5 1.
Disassembly Removing the Battery Figure 1 Battery Removal 1. Turn off the computer, 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 1b in place.
Disassembly Removing the Keyboard Figure 2 1. Turn off the computer, turn it over to remove the battery (page 2 - Keyboard Removal 2. Remove screws from the bottom case (Figure 2a). 3. Open it up with the LCD on a flat surface before pressing at point to release the keyboard module while releas- a.
Disassembly Removing the Hard Disk Drive Figure 3 HDD Assembly The hard disk drive can be taken out to accommodate other 2.5" serial (SATA) hard disk drives with a height of 7.0mm Removal (h). Follow your operating system’s installation instructions, and install all necessary drivers and utilities (as outlined in Chapter 4 of the User’s Manual) when setting up a new hard disk.
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Disassembly 6. Remove the screw from the hard disk assembly (Figure 4d Figure 4 7. Slightly lift and pull the hard disk assembly in the direction of arrow (Figure 4e HDD Assembly 8. Lift the hard disk assembly out of the bay (Figure 4f Removal (cont’d.) 9.
Disassembly Removing the 2nd Hard Disk from Caddy Bay Figure 5 2nd HDD Removal 1. Turn off the computer, remove the battery (page 2 - 5), and bottom case (page 2 - 2. Carefully push out the caddy bay out in the direction of the arrow (Figure 5a a.
Disassembly Removing the Optical (CD/DVD) Device Figure 6 Optical Device 1. Turn off the computer, remove the battery (page 2 - 5), and bottom case (page 2 - Removal 2. Carefully push out the optical device out of the bay in the direction of the arrow (Figure 6a 3.
Disassembly Removing the System Memory (RAM) Figure 7 RAM Module The computer has two memory sockets for 260 pin Small Outline Dual In-line Memory Modules (SO-DIMM) supporting Removal DDR4 Up to 2133 MHz. The main memory can be expanded up to 32GB. The total memory size is automatically detect- ed by the POST routine once you turn on your computer.
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Disassembly 5. Pull the latches to release the second module if necessary. 6. Insert a new module holding it at about a 30° angle and fit the connectors firmly into the memory slot. 7. The module will only fit one way as defined by its pin alignment. Make sure the module is seated as far into the slot as it will go.
Disassembly Removing the Wireless LAN Module Figure 8 WLAN Module 1. Turn off the computer, turn it over to remove the battery (page 2 - 5) and bottom cover (page 2 - Removal 2. The Wireless LAN module will be visible at point on the mainboard (Figure 8a).
Disassembly Wireless LAN and Combo Module Cables Note that the cables for connecting to the antennae on WLAN and WLAN & Bluetooth Combo modules are not labelled. The cables/covers (each cable will have either a black or transparent cable cover) are color coded for identification as outlined in the table below.
Disassembly Removing the 3G Module Figure 9 3G Module Removal 3G Module Removal Procedure 1. Turn off the computer, turn it over to remove the battery (page 2 - 5) and bottom cover (page 2 - a. Locate the module. 2.
Disassembly Removing and Installing the M.2 SSD Module Figure 10 M.2 SSD Module m.2 SSD Removal Procedure Removal 1. Turn off the computer, turn it over to remove the battery (page 2 - 5) and bottom cover (page 2 - 2.
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Disassembly M.2 SSD Installation Procedure Figure 11 1. Place the thermal pad on the bottom case as shown (Figure 11a). M.2 SSD Module 2. Insert the module in the computer Figure 11b Installation 3. Tighten the screw to secure it in place (Figure 11c).
Disassembly Removing the CCD Figure 12 CCD Removal 1. Turn off the computer, turn it over to remove the battery (page 2 - 2. Run your fingers around the inner frame of the LCD panel at the points as indicated by the arrows (Figure a.
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Disassembly 5. Disconnect the cable Figure 13 6. Remove the CCD module (Figure 13f). CCD Removal 7. Reverse the process to install a new CCD module. (cont’d) d. Disconnect the cable. e. Remove the CCD mod- ule. 7. CCD Module Removing the CCD 2 - 19...
Appendix A:Part Lists This appendix breaks down the N750BU 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 HDD Caddy page A - 8...
Schematic Diagrams Appendix B: Schematic Diagrams This appendix has circuit diagrams of the N750BU notebook’s PCB’s. The following table indicates where to find the appropriate schematic diagram. Diagram - Page Diagram - Page Diagram - Page Table B - 1...
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SATA III 6.0Gb/s 4IN1 480 Mbps <7" RJ-45 USB3.1 SOCKET USB3.0 SHEET 18 SHEET 17 USB3.1 CCD + Mic N740BU USB2.0 N750BU USB2.0 USB3.0 (USB2_6) (USB2_7) (USB2_8) SATA HDD SATA ODD M.2 3G/LTE Mux+ CC SHEET 24 SHEET 23 SHEET 24 (USB2_2) USB3.0...
AH9249NTR-G1 2ND 6-02-08251-LC0 L_GND L_GND L_GND L_GND L_GND 8/26/2016 DMFWP!DP/!! Title Title Title [34] N750BU LID SW BOARD [34] N750BU LID SW BOARD [34] N750BU LID SW BOARD Size Size Size Document Number Document Number Document Number 6-71-N7501-D02 6-71-N7501-D02 6-71-N7501-D02...
O197x209D102x114 H9_0D5_8 H9_0D5_8 DGND DGND 1DR1 4DR1 *0_04 *0_04 Title Title Title [37] N750BU Caddy Bay BOARD [37] N750BU Caddy Bay BOARD [37] N750BU Caddy Bay BOARD 2DR1 *0_04 5DR1 *0_04 Size Size Size Document Number Document Number Document Number...
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 “EFI Shell”. You will then be prompted to give “Y” or “N” responses to the programs being loaded by EFI Shell.