Clevo N770WU Service Manual

Preface

I

Preface

Notebook Computer

N770WU

Service Manual

Preface

II

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 ven­dor. They assume no responsibility or liability for any errors or inaccuracies that may appear in this publication nor are
they in anyway responsible for any loss or damage resulting from the use (or misuse) of this publication.

This publication and any accompanying software may not, in whole or in part, be reproduced, translated, transmitted or
reduced to any machine readable form without prior consent from the vendor, manufacturer or creators of this publica­tion, except for copies kept by the user for backup purposes.

Brand and product names mentioned in this publication may or may not be copyrights and/or registered trademarks of
their respective companies. They are mentioned for identification purposes only and are not intended as an endorsement
of that product or its manufacturer.

Version 1.0
September 2017

Trademarks

Pentium and Celeron are trademarks of Intel Corporation.
Windows® is a registered trademark of Microsoft Corporation.

Other brand and product names are trademarks and /or registered trademarks of their respective companies.

Preface

III

Preface

About this Manual

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 N770WU
series notebook PC.

The following information is included:

Chapter 1, Introduction, provides general information about the location of system elements and their specifications.
Chapter 2, Disassembly, provides step-by-step instructions for disassembling parts and subsystems and how to upgrade
elements of the system.

Appendix A, Part Lists
Appendix B, Schematic Diagrams
Appendix C, Updating the FLASH ROM BIOS

Preface

IV

Preface

IMPORTANT SAFETY INSTRUCTIONS

Follow basic safety precautions, including those listed below, to reduce the risk of fire, electric shock and injury to per­sons 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.

2. Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk of elec­trical shock from lightning.

3. Do not use the telephone to report a gas leak in the vicinity of the leak.

4. Use only the power cord and batteries indicated in this manual. Do not dispose of batteries in a fire. They may
explode. Check with local codes for possible special disposal instructions.

5. This product is intended to be supplied by a Listed Power Unit with an AC Input of 100 - 240V, 50 - 60Hz, DC Output
of 19V, 2.1A (40 Watts) minimum AC/DC Adapter.

CAUTION

This Computer’s Optical Device is a Laser Class 1 Product

FCC Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
This device may not cause harmful interference.
This device must accept any interference received, including interference that may cause undesired operation.

Preface

V

Preface

Instructions for Care and Operation

The notebook computer is quite rugged, but it can be damaged. To prevent this, follow these suggestions:

1. Don’t drop it, or expose it to shock. If the computer falls, the case and the components could be damaged.

2. Keep it dry, and don’t overheat it. Keep the computer and power supply away from any kind of heating element. This

is an electrical appliance. If water or any other liquid gets into it, the computer could be badly damaged.

3. Follow the proper working procedures for the computer. Shut the computer down properly and don’t forget to save

your work. Remember to periodically save your data as data may be lost if the battery is depleted.

Do not expose the computer
to any shock or vibration.

Do not place it on an unstable
surface.

Do not place anything heavy
on the computer.

Do not expose it to excessive
heat or direct sunlight.

Do not leave it in a place
where foreign matter or mois­ture may affect the system.

Don’t use or store the com­puter in a humid environment.

Do not place the computer on
any surface which will block
the vents.

Do not turn off the power
until you properly shut down
all programs.

Do not turn off any peripheral
devices when the computer is
on.

Do not disassemble the com­puter by yourself.

Perform routine maintenance
on your computer.

Preface

VI

Preface

4. 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.

5. Take care when using peripheral devices.

Power Safety

The computer has specific power requirements:

• Only use a power adapter approved for use with this computer.

• Your AC adapter may be designed for international travel but it still requires a steady, uninterrupted power supply. If you are
unsure of your local power specifications, consult your service representative or local power company.

• The power adapter may have either a 2-prong or a 3-prong grounded plug. The third prong is an important safety feature; do
not defeat its purpose. If you do not have access to a compatible outlet, have a qualified electrician install one.

• When you want to unplug the power cord, be sure to disconnect it by the plug head, not by its wire.

• Make sure the socket and any extension cord(s) you use can support the total current load of all the connected devices.

• Before cleaning the computer, make sure it is disconnected from any external power supplies.

Use only approved brands of
peripherals.

Unplug the power cord before
attaching peripheral devices.

Do not plug in the power
cord if you are wet.

Do not use the power cord if
it is broken.

Do not place heavy objects
on the power cord.

Power Safety

Warning

Before you undertake
any upgrade proce­dures, make sure that
you have turned off the
power, and discon­nected all peripherals
and cables (including
telephone lines and
power cord). It is advis­able to also remove
your battery in order to
prevent accidentally
turning the machine
on.

Preface

VII

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.

• Recharge the batteries using the notebook’s system. Incorrect recharging may make the battery explode.

• Do not try to repair a battery pack. Refer any battery pack repair or replacement to your service representative or qualified service
personnel.

• Keep children away from, and promptly dispose of a damaged battery. Always dispose of batteries carefully. Batteries may explode
or leak if exposed to fire, or improperly handled or discarded.

• Keep the battery away from metal appliances.

• Affix tape to the battery contacts before disposing of the battery.

• Do not touch the battery contacts with your hands or metal objects.

Battery Guidelines

The following can also apply to any backup batteries you may have.

• If you do not use the battery for an extended period, then remove the battery from the computer for storage.

• Before removing the battery for storage charge it to 60% - 70%.

• Check stored batteries at least every 3 months and charge them to 60% - 70%.

Battery Disposal

The product that you have purchased contains a rechargeable battery. The battery is recyclable. At the end of its useful life, under var­ious state and local laws, it may be illegal to dispose of this battery into the municipal waste stream. Check with your local solid waste
officials for details in your area for recycling options or proper disposal.

Caution

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the manufacturer.
Discard used battery according to the manufacturer’s instructions.

Battery Level

Click the battery icon in the taskbar to see the current battery level and charge status. A battery that drops below a level of 10%
will not allow the computer to boot up. Make sure that any battery that drops below 10% is recharged within one week.

Preface

VIII

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 pro­gram. It also describes the installation and operation of the utility programs provided with the notebook PC.

System Startup

1. Remove all packing materials.

2. Place the computer on a stable surface.

3. Insert the battery and make sure it is locked in position.

4. Securely attach any peripherals you want to use with the
computer (e.g. keyboard and mouse) to their ports.

5. When first setting up the computer use the following pro-
cedure (as to safeguard the computer during shipping, the
battery will be locked to not power the system until first con­nected to the AC/DC adapter and initially set up as below):

• Attach the AC/DC adapter cord to the DC-In jack on the left

of the computer, then plug the AC power cord into an outlet,
and connect the AC power cord to the AC/DC adapter and
leave it there for 6 seconds or longer.

• Remove the adapter cord from the computer’s DC-In jack,

and then plug it back in again; the battery will now be
unlocked.

6. Use one hand to raise the

lid/LCD to a comfortable viewing

angle

(do not exceed 120 degrees);use the other hand (as

illustrated in Figure 1) to support the base of the computer
(Note: Never lift the computer by the lid/LCD).

7. Press the power button to turn the computer “on”.

Powering the
Computer On

After every disassem­bly, make sure that the
bottom case’s screws
are all inserted and
tightened before turn­ing the computer on.

Shut Down

Note that you should always
shut your computer down by
choosing Shut Down from the
Start Menu.

This will help prevent hard disk
or system problems.

Figure 1

Opening the Lid/LCD/

Computer with AC/DC

Adapter Plugged-In

Preface

IX

Preface

Contents

Introduction ..............................................1-1

Overview ......................................................................................... 1-1

Specifications ..................................................................................1-2

External Locator - Top View with LCD Panel Open ......................1-4

External Locator - Front & Right Side Views .................................1-5

External Locator - Left Side & Rear View .....................................1-6

External Locator - Bottom View .....................................................1-7

Mainboard Overview - Top (Key Parts) .........................................1-8

Mainboard Overview - Bottom (Key Parts) ....................................1-9

Mainboard Overview - Top (Connectors) .....................................1-10

Mainboard Overview - Bottom (Connectors) ...............................1-11

Disassembly ...............................................2-1

Overview ......................................................................................... 2-1

Maintenance Tools ..........................................................................2-2

Connections .....................................................................................2-2

Maintenance Precautions .................................................................2-3

Disassembly Steps ........................................................................... 2-4

Removing the Battery ......................................................................2-5

Removing the Keyboard ..................................................................2-6

Removing the Hard Disk Drive ....................................................... 2-7

Removing the 2nd Hard Disk from Caddy Bay .............................. 2-9

Removing the Optical (CD/DVD) Device ....................................2-10

Removing the System Memory (RAM) ........................................ 2-11

Removing the Wireless LAN Module ........................................... 2-13

Wireless LAN, Combo, 3G & LTE Module Cables .....................2-14

Removing the 3G Module .............................................................2-15

Removing and Installing the M.2 SSD Module ........................... 2-16

Removing the CCD ....................................................................... 2-18

Part Lists ..................................................A-1

Part List Illustration Location ........................................................ A-2

Top ................................................................................................. A-3

Bottom ........................................................................................... A-4

LCD ............................................................................................... A-5

HDD .............................................................................................. A-6

HDD Caddy ................................................................................... A-7

DVD .............................................................................................. A-8

MB ................................................................................................ A-9

Schematic Diagrams.................................B-1

System Block Diagram ...................................................................B-2

Processor 1/6 ...................................................................................B-3

Processor 2/6 ...................................................................................B-4

Processor 3/6 ...................................................................................B-5

Processor 4/6 ...................................................................................B-6

Processor 5/6 ...................................................................................B-7

Processor 6/6 ...................................................................................B-8

DDR4 CHA SO_DIMM_0 .............................................................B-9

DDR4 CHB SO_DIMM_0 ...........................................................B-10

Panel, Inverter ...............................................................................B-11

VGA RTD2168 .............................................................................B-12

Card Reader & LAN RTL8411B ..................................................B-13

HDMI, RJ45, Fan, TPM ...............................................................B-14

PCH 1/9 ........................................................................................B-15

PCH 2/9 ........................................................................................B-16

PCH 3/9 ........................................................................................B-17

PCH 4/9 ........................................................................................B-18

PCH 5/9 ........................................................................................B-19

PCH 6/9 ........................................................................................B-20

PCH 7/9 ........................................................................................B-21

PCH 8/9 ........................................................................................B-22

Preface

X

Preface

PCH 9/9 ........................................................................................ B-23

M.2 (WLAN, 3G, SSD) ............................................................... B-24

Audio Codec ................................................................................. B-25

PS8330B ....................................................................................... B-26

AR_TBT ....................................................................................... B-27

AR_Power .................................................................................... B-28

ASM1543 ..................................................................................... B-29

TPS65982 ..................................................................................... B-30

Type C .......................................................................................... B-31

USB .............................................................................................. B-32

HDD, ODD, LED ......................................................................... B-33

CCD, MIC, LID, I/O Connector .................................................. B-34

KBC ITE IT8587 .......................................................................... B-35

5V, 5VS, 3.3V, 3.3VS, 3.3VA ..................................................... B-36

VDD3, VDD5 ............................................................................... B-37

DDR 1.2V/0.62VS, 2.5V ............................................................. B-38

VCC_CORE, VCCGT ................................................................. B-39

VCORE, VCCGT Output Stage ................................................... B-40

VCCSA ......................................................................................... B-41

VCCIO ......................................................................................... B-42

1.0DX_VCCSTG/VCCSFR_OC, 3.3VA ..................................... B-43

Charger, AC-In ............................................................................. B-44

Audio Board ................................................................................. B-45

Click Board .................................................................................. B-46

LID SW Board ............................................................................. B-47

Caddy Bay Board ......................................................................... B-48

Power Seq. .................................................................................... B-49

Updating the FLASH ROM BIOS......... C-1

Download the BIOS ....................................................................... C-1

Unzip the downloaded files to a bootable CD/DVD/ or

USB Flash drive ............................................................................. C-1

Set the computer to boot from the external drive ...........................C-1

Use the flash tools to update the BIOS ...........................................C-2

Restart the computer (booting from the HDD) ...............................C-2

Introduction

Overview 1 - 1

1.Introduction

Chapter 1: Introduction

Overview

This manual covers the information you need to service or upgrade the N770WU series notebook computer. Information
about operating the computer (e.g. getting started, and the Setup utility) is in the User’s Manual. Information about dri­vers (e.g. VGA & audio) is also found in the User’s Manual. The manual is shipped with the computer.

Operating systems (e.g. Window 10, etc.) have their own manuals as do application softwares (e.g. word processing and
database programs). If you have questions about those programs, you should consult those manuals.

The N770WU series notebook is designed to be upgradeable. See Disassembly on page 2 - 1 for a detailed description
of the upgrade procedures for each specific component. Please take note of the warning and safety information indicated
by the “ ” symbol.

The balance of this chapter reviews the computer’s technical specifications and features.

Introduction

1 - 2 Specifications

1.Introduction

Specifications

Latest Specification Information

The specifications listed here are correct at the
time of sending them to the press. Certain items
(particularly processor types/speeds) may be
changed, delayed or updated due to the manu­facturer's release schedule. Check with your
service center for more details.

CPU

The CPU is not a user serviceable part. Ac­cessing the CPU in any way may violate your
warranty.

Processor Options

Intel® Core™ i7 Processor

i7-8550U (1.80GHz)

6MB Smart Cache, 14nm, DDR4-2400MHz, TDP 15W
Intel® Core™ i5 Processor

i5-8250U (1.60GHz)

6MB Smart Cache, 14nm, DDR4-2400MHz, TDP 15W
Intel® Core™ i3 Processor
i3-7100U (2.40GHz)
3MB Smart Cache, 14nm, DDR4-2400MHz, TDP 15W

BIOS

64Mb SPI Flash ROM

AMI BIOS

Memory

Two 260 Pin SO-DIMM Sockets Supporting DDR4 2400 MHz
Memory

Memory Expandable up to 32GB

Compatible with 4GB, 8GB or 16GB Modules

(The real memory operating frequency depends on the F SB
of the processor.)

LCD Options

15.6" (39.62cm), 16:9, HD (1366x768)/FHD (1920x1080)
(Thickness: 3.2mm)

Video Adapter

Intel HD Graphics 620 (for i3-7100U only)

Dynamic Frequency
Intel Dynamic Video Memory Technology

Microsoft DirectX®12 Compatible
Intel UHD Graphics 620 (for i7-8550U, i5-8250U only)

Dynamic Frequency
Intel Dynamic Video Memory Technology

Microsoft DirectX®12 Compatible

Storage

One Changeable 2.5" 7mm (h) SATA HDD/SSD

(Factory Option) One 9.5mm/9.0mm(h) Optical Device Type
Drive (DVD Writer)

Or
(Factory Option) Dummy ODD

Or
(Factory Option) 7mm (h) 2nd HDD/SSD Caddy

(Factory Option) One M.2 SATA/PCIe Gen3 x4 Solid State
Drive (SSD)

Pointing Device

Built-in Touchpad

Keyboard

Full-size “WinKey” keyboard (with numeric keypad)

Or
(Factory Option) Full-size “WinKey” Illuminated White-LED

Keyboard (with numeric keypad)

Audio

High Definition Audio Compliant Interface

2 * Built-In Speakers

Built-In Microphone
(Factory Option) Built-In Array Microphone

Security

Security (Kensington® Type) Lock Slot

BIOS Password

Intel PTT for Systems Without TPM Hardware

(Factory Option) TPM 2.0

Introduction

Specifications 1 - 3

1.Introduction

M.2 Slots

Slot 1 for WLAN and Bluetooth Combo Module
Slot 2 for SATA/PCIe Gen3 x4 SSD
(Factory Option) Slot 3 for 3G/4G Module

Interface

Two USB 2.0

One USB 3.0 (USB 3.1 Gen 1) Type-A Port

One USB 3.0 (USB 3.1 Gen 1)

Or
(Factory Option) One USB 3.1 Gen 2

Three USB 3.0 (USB 3.1 Gen 1) Type-A Ports

One HDMI-Out Port

One External Monitor Port

One Microphone-In Jack

One Headphone-Out Jack

One RJ-45 LAN Jack

One DC-in Jack

Card Reader

Embedded Multi-In-1 Card Reader

MMC (MultiMedia Card) / RS MMC

SD (Secure Digital) / Mini SD / SDHC/ SDXC

USB 3.1 Gen 2

Note that when a single USB device is plugged
in to a USB 3.1 Gen 2 port the data transfer
speed will be 10Gbps, however when two devic­es are plugged in to both USB 3.1 Gen 2 ports,
this bandwidth will be shared between the ports.

Communication

Built-In 10/100/1000Mb Base-TX Ethernet LAN

1.0M HD PC Camera Module
(Factory Option) 3G or 4G M.2 Module

WLAN/ Bluetooth M.2 Modules:

(Factory Option) Intel® Wireless-AC 8265 Wireless LAN
(802.11ac) + Bluetooth

(Factory Option) Intel® Wireless-AC 3168 Wireless LAN
(802.11ac) + Bluetooth

Power

Full Range AC/DC Adapter

AC Input: 100 - 240V, 50 - 60Hz
DC Output: 19V, 2.1A (40W)

(Factory Option) Removable 4 Cell Smart Lithium-Ion Bat­tery Pack, 31WH

Environmental Spec

Temperature

Operating: 5°C - 35°C

Non-Operating: -20°C - 60°C

Relative Humidity

Operating: 20% - 80%

Non-Operating: 10% - 90%

Dimensions & Weight

418.5mm (w) * 287mm (d) * 26.4mm (h)

(Height Excluding Battery Area)

2.5kg (Barebone with 31WH Battery)