Clevo N240PU, N241PU Service Manual
N240PU / N241PU
Preface
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Notebook Computer
N240PU / N241PU
Service Manual
Preface
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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 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
December 2016
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.
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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 N240PU /
N241PU 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
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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.
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.
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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.
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4. Avoid interference. Keep the computer away from high capacity transformers, electric motors, and other strong magnetic 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.
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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.
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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. Attach the AC/DC adapter to the DC-In jack at the rear of the
computer, then plug the AC power cord into an outlet, and
connect the AC power cord to the AC/DC adapter.
6. Use one hand to raise the
lid/LCD to a comfortable viewing angle
(do not exceed 130 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”.
Figure 1
Opening the Lid/LCD/
Computer with AC/DC
Adapter Plugged-In
130°
Shut Down
Note that you should always shut your computer down by choosing the Shut down command in Windows (see below). This will help prevent hard disk or system problems.
Click Settings in the Charms Bar (use the Windows Logo Key + C key combination to access
the Charms Bar) and choose Shut down from the Power menu.
Or
Choose Shut down or sign out > Shut down from the context menu (use the Windows Logo Key
+ X key combination to access the context menu).
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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 Hard Disk Drive .......................................................2-6
Removing the System Memory (RAM) ..........................................2-8
Removing the Keyboard ................................................................2-10
Removing the Wireless LAN Module ...........................................2-11
Wireless LAN, and Combo Module Cables ..................................2-12
Removing the 3G Module .............................................................2-13
Removing and Installing the M.2 SSD Module ............................2-14
Removing the CCD .......................................................................2-16
Part Lists ..................................................A-1
Part List Illustration Location ........................................................A-2
Top .................................................................................................A-3
Bottom ........................................................................................... A-4
LCD ............................................................................................... A-5
HDD ............................................................................................... A-6
Schematic Diagrams.................................B-1
System Block Diagram ...................................................................B-2
Processor 1/8 ...................................................................................B-3
Processor 2/8 ...................................................................................B-4
Processor 3/8 ...................................................................................B-5
Processor 4/8 ...................................................................................B-6
Processor 5/8 ...................................................................................B-7
Processor 6/8 ...................................................................................B-8
Processor 7/8 ...................................................................................B-9
Processor 8/8 .................................................................................B-10
eMMC ...........................................................................................B-11
DDR3L SO-DIMM_0 ...................................................................B-12
DDR3L SO-DIMM_1 ...................................................................B-13
HDMI ............................................................................................B-14
PS8625 ..........................................................................................B-15
Panel .............................................................................................B-16
Audio Codec .................................................................................B-17
SATA, LED, HUB ........................................................................B-18
USB, TPM ....................................................................................B-19
Conn, CCD, Fan, Click, TV .........................................................B-20
WLAN/BT, 3G/mSATA ...............................................................B-21
KBC ITE IT8987E ........................................................................B-22
System Power ...............................................................................B-23
VDD3, VDD5 ...............................................................................B-24
USB ...............................................................................................B-25
Power 1.35V/0.675V ....................................................................B-26
PWR VCGI ...................................................................................B-27
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PWR VNN_SVID ........................................................................B-28
PWR 1.05VS/1.24VA/1.8VA ...................................................... B-29
PWR Charger ............................................................................... B-30
USB Board ................................................................................... B-31
CRT .............................................................................................. B-32
LAN ..............................................................................................B-33
Power SW Board ..........................................................................B-34
Click Board .................................................................................. B-35
LED Board ................................................................................... B-36
HDD Board .................................................................................. B-37
Level Shifter 1 ..............................................................................B-38
Level Shifter 2 ..............................................................................B-39
Power Sequence ........................................................................... B-40
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 N240PU / N241PU 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. 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 N240PU / N241PU 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® Pentium® Processor
N4200 (1.10GHz)
2MB Smart Cache, 14nm, DDR3L-1866MHz, TDP 6W
Intel® Celeron® Processor
N3450 (1.10GHz), N3350 (1.10GHz)
2MB Smart Cache, 14nm, DDR3L-1866MHz, TDP 6W
BIOS
64Mb SPI Flash ROM
AMI BIOS
Memory
Two 204 Pin SO-DIMM Sockets Supporting DDR3L 1600/
1866MHz Memory
Memory Expandable up to 8GB
Compatible with 4GB or 8GB Modules
(The real memory operating frequency depends on the FSB
of the processor.)
LCD Options
14" (35.56cm), 16:9, HD (1366x768)/FHD (1920x1080)
(Thickness: 3.6mm)
Video Adapter
Intel GPU (CPU integrated)
Intel HD Graphics 505 (Pentium CPU integrated)
Dynamic Frequency
Intel Dynamic Video Memory Technology
Microsoft DirectX®12 Compatible
Intel HD Graphics 500 (Celeron CPU integrated)
Dynamic Frequency
Intel Dynamic Video Memory Technology
Microsoft DirectX®12 Compatible
Storage
One Changeable 2.5" 7mm (h) SATA HDD/SSD
(Factory Option) One M.2 SATA Solid State Drive (SSD)
(Factory Option) 32GB eMMC*
*Note: Systems with 32GB eMMC modules only support
Windows 10 Hybrid Boot.
Pointing Device
Built-in Touchpad
Keyboard
“WinKey” keyboard (with embedded numeric keypad)
Audio
High Definition Audio Compliant Interface
2 * Built-In Speakers
Built-In Microphone
Or
(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
M.2 Slots
Slot 1 for WLAN and Bluetooth Combo Module
(Factory Option) Slot 2 for SATA SSD or 3G/4G Module
Introduction
Specifications 1 - 3
1.Introduction
Interface
One USB 2.0 Port
One USB 3.0 (USB 3.1 Gen 1) Port
One USB 3.0 (USB 3.1 Gen 1) Type C Port
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
Communication
Built-In Gigabit 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-N 7265 Wireless LAN
(802.11b/g/n) + Bluetooth 4.0
(Factory Option) Intel® Wireless-AC 3165 Wireless LAN
(802.11ac) + Bluetooth 4.0
(Factory Option) Intel® Wireless-AC 3168 Wireless LAN
(802.11ac) + Bluetooth 4.0
(Factory Option) Third-Party Wireless LAN (802.11b/g/n) +
Bluetooth 4.0
Card Reader
Embedded Multi-In-1 Card Reader
MMC (MultiMedia Card) / RS MMC
SD (Secure Digital) / Mini SD / SDHC/ SDXC
Power
Full Range AC/DC Adapter
AC Input: 100 - 240V, 50 - 60Hz
DC Output: 19V, 2.1A (40W)
Removable 4 Cell Smart Lithium-Ion Battery Pack, 32WH
(Factory Option) Removable 4 Cell Smart Lithium-Ion Bat-
tery Pack, 44WH
(Factory Option) Removable 3 Cell Smart Lithium-Ion Bat-
tery Pack, 24WH
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
340mm (w) * 243.5mm (d) * 22.2mm (h)
(Height Excluding Battery Area)
1.8kg (Barebone with 32WH Battery)
Introduction
1 - 4 External Locator - Top View with LCD Panel Open
1.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. Power Button
6. Keyboard
7. Touchpad &
Buttons
5
7
6
2
1
3
4
Introduction
External Locator - Front & Right Side Views 1 - 5
1.Introduction
External Locator - Front & Right Side Views
Figure 2
Front View
1. LED Indicators
Figure 3
Right Side View
1. USB 2.0 Port
2. Multi-in-1 Card
Reader
3. External Monitor
Port
4. RJ-45 LAN Jack
FRONT VIEW
1
RIGHT SIDE VIEW
1
2
3
4
Introduction
1 - 6 External Locator - Left Side & Rear View
1.Introduction
External Locator - Left Side & Rear View
/
Figure 4
Left Side View
1. Security Lock Slot
2. DC-In Jack
3. HDMI-Out Port
4. Vent
5. USB 3.0/3.1 Port
6. USB 3.0/3.1 Type
C Port
7. Microphone-In
Jack
8. Headphone-Out
Jack
LEFT SIDE VIEW
1
2
3
4
5
6
7 8
Figure 5
Rear View
1. Battery
REAR VIEW
1
Introduction
External Locator - Bottom View 1 - 7
1.Introduction
External Locator - Bottom View
Figure 6
Bottom View
1. Battery
2. Vent
3. Speakers
Overheating
To prevent your computer from overheating, make sure nothing blocks any vent
while the computer is
in use.
1
33
2
2
Introduction
1 - 8 Mainboard Overview - Top (Key Parts)
1.Introduction
Mainboard Overview - Top (Key Parts)
Figure 7
Mainboard Top
Key Parts
1
2
3
4
3
Figure 8
Mainboard Bottom
Key Parts
1. KBC-ITE IT8587
2. CPU
3. Memory Slots
DDR4 SO-DIMM
4. CMOS Battery
Introduction
Mainboard Overview - Bottom (Key Parts) 1 - 9
1.Introduction
Mainboard Overview - Bottom (Key Parts)
Introduction
1 - 10 Mainboard Overview - Top (Connectors)
1.Introduction
Mainboard Overview - Top (Connectors)
Figure 9
Mainboard Top
Connectors
1. DC-In Jack
2. HDMI-Out Port
3. USB Port 3.0/3.1
Port
4. USB Port 3.0/3.1
Type C Port
5. Microphone-In
Jack
6. Headphone-Out
Jack
7. SIM Card Reader
8. Keyboard Cable
Connector
11
1
2
5
3
8
6
4
7
Introduction
Mainboard Overview - Bottom (Connectors) 1 - 11
1.Introduction
Mainboard Overview - Bottom (Connectors)
Figure 10
Mainboard Bottom
Connectors
1. 3G/4G Card
Connector
2. WLAN Connector
3. HDD Connector
4. Touchpad
Connector
5. Speaker Connector
6. Fan Connector
7. LCD Cable
Connector
8. CCD Connector
9. Battery Connector
10
1
2
4
6
7
3
5
8
9
6
Introduction
1 - 12
1.Introduction
Disassembly
Overview 2 - 1
2.Disassembly
Chapter 2: Disassembly
Overview
This chapter provides step-by-step instructions for disassembling the N240PU / N241PU 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.
Procedures such as upgrading/replacing the RAM, optical device and hard disk are included in the User’s Manual but are
repeated here for your convenience.
To make the disassembly process easier each section may have a box in the page margin. Information contained under
the figure # will give a synopsis of the sequence of procedures involved in the disassembly procedure. A box with a
lists the relevant parts you will have after the disassembly process is complete. Note: The parts listed will be for the disassembly procedure listed ONLY, and not any previous disassembly step(s) required. Refer to the part list for the previous disassembly procedure. The amount of screws you should be left with will be listed here also.
A box with a will also provide any possible helpful information. A box with a contains warnings.
An example of these types of boxes are shown in the sidebar.
Information
Warning
Disassembly
2 - 2 Overview
2.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
• M2.5 Philips-head screwdriver (magnetized)
• M2 Philips-head screwdriver
• Small flat-head screwdriver
• Pair of needle-nose pliers
• Anti-static wrist-strap
Connections
Connections within the computer are one of four types:
Locking collar sockets for ribbon connectors To release these connectors, use a small flat-head screwdriver to
gently pry the locking collar away from its base. When replacing the connection, make sure the connector is oriented in the
same way. The pin1 side is usually not indicated.
Pressure sockets for multi-wire connectors To release this connector type, grasp it at its head and gently
rock it from side to side as you pull it out. Do not pull on the
wires themselves. When replacing the connection, do not try to
force it. The socket only fits one way.
Pressure sockets for ribbon connectors To release these connectors, use a small pair of needle-nose pli-
ers to gently lift the connector away from its socket. When replacing the connection, make sure the connector is oriented in
the same way. The pin1 side is usually not indicated.
Board-to-board or multi-pin sockets To separate the boards, gently rock them from side to side as
you pull them apart. If the connection is very tight, use a small
flat-head screwdriver - use just enough force to start.
Disassembly
Overview 2 - 3
2.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:
1. Don't drop it. Perform your repairs and/or upgrades on a stable surface. If the computer falls, the case and other
components could be damaged.
2. Don't overheat it. Note the proximity of any heating elements. Keep the computer out of direct sunlight.
3. Avoid interference. Note the proximity of any high capacity transformers, electric motors, and other strong mag-
netic fields. These can hinder proper performance and damage components and/or dat a. You should also monitor
the position of magnetized tools (i.e. screwdrivers).
4. Keep it dry. This is an electrical appliance. If water or any other liquid gets into it, the computer could be badly
damaged.
5. Be careful with power. Avoid accidental shocks, discharges or explosions.
•Before removing or servicing any part from the computer, turn the computer off and detach any power supplies.
•When you want to unplug the power cord or any cable/wire, be sure to disconnect it by the plug head. Do not pull on the wire.
6. Peripherals – Turn off and detach any peripherals.
7. Beware of static discharge. ICs, such as the CPU and main support chips, are vulnerable to static electricity.
Before handling any part in the computer, discharge any static electricity inside the computer. When handling a
printed circuit board, do not use gloves or other materials which allow static electricity buildup. We suggest that
you use an anti-static wrist strap instead.
8. Beware of corrosion. As you perform your job, avoid touching any connector leads. Even the cleanest hands produce oils which can attract corrosive elements.
9. Keep your work environment clean. Tobacco smoke, dust or other air-born particulate matter is often attracted
to charged surfaces, reducing performance.
10. Keep track of the components. When removing or replacing any part, be careful not to leave small p arts, such as
screws, loose inside the computer.
Cleaning
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.
Do not apply cleaner directly to the computer, use a soft clean cloth.
Do not use volatile (petroleum distillates) or abrasive cleaners on any part of the computer.
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