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 2021
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.
II
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 NL50MU / NL51MU / NL52MU 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.
Preface
Appendix A, Part Lists
Appendix B, Schematic Diagrams
Preface
III
Preface
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, 2.37A (45 Watts) minimum AC/DC Adapter.
FCC Statement
IV
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.
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.
Preface
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.
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.
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.
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 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
V
Preface
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.
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.
Preface
VI
Use only approved brands of
peripherals.
Unplug the power cord before
attaching 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.
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.
Battery Precautions
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.
•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%.
Preface
Preface
VII
Preface
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 command
in Windows.
This will help prevent hard disk
or system problems.
Figure 1
Opening the Lid/LCD/
Computer with AC/DC
Adapter Plugged-In
180°
Preface
VIII
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
right of the computer, then plug the AC power cord into an
outlet, and connect the AC power cord to the AC/DC
adapter. The battery will now be unlocked.
6. Use one hand to raise the
angle
(do not exceed 180 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 on the left side of the computer to
turn the computer “on” (note that the lid/LCD must be open
for the power button to function).
Power Sequence ...........................................................................B-48
X
Chapter 1: Introduction
Overview
This manual covers the information you need to service or upgrade the NL50MU / NL51MU / NL52MU 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 com-
puter.
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 NL50MU / NL51MU / NL52MU 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.Introduction
Overview 1 - 1
Introduction
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.
Note that this computer model series may support a range of CPUs and/or video adapters.
To find out which CPU is installed on your system go to the Start menu and select Settings,
and then select System and click About. This
will also provide information on the amount of
Installed RAM etc.
To get information on your system’s video
adapter go to the Start menu and select Set-
tings, and then select System and click Dis-
play > Advanced display settings > Display
adapter properties.
CPU
The CPU is not a user serviceable part. Accessing the CPU in any way may violate your
warranty.
Specifications
1.Introduction
1 - 2 Specifications
Processor Options
Intel® Core™ i7 Processor
i7-1195G7 (1.30GHz)
i7-1165G7 (1.20GHz)
Intel® Core™ i5 Processor
i5-1155G7 (1.00GHz)
i5-1135G7 (0.90GHz)
Intel® Core™ i3 Processor
i3-1115G4 (1.70GHz)
BIOS
128Mb SPI Flash ROM
Insyde BIOS
Memory
Dual Channel DDR4
Two 260 Pin SO-DIMM Sockets Supporting DDR4 3200MHz
Memory
Memory Expandable up to 32GB
Compatible with 4GB, 8GB or 16GB Modules
(The real memory operating frequency depends on the FSB
of the processor.)
LCD Options
LCD, 15.6" (39.62cm), 16:9, HD (1366x768)/FHD
(1920x1080)
Card Reader
MicroSD Card Reader
Storage
One Changeable 2.5" 7mm (h) SATA HDD/SSD
(Factory Option) One M.2 PCIe Gen4 x4 Solid State Drive
(SSD)
Video Adapter
Intel Iris X Graphics (i7-1195G7/i5-1155G7/i5-1135G7)
HDR Support
Rec. 2020 (Wide Color Gamut)
Microsoft DirectX® 12 Compatible
Intel Iris Graphics
HDR Support
Rec. 2020 (Wide Color Gamut)
Microsoft DirectX® 12 Compatible
Intel UHD Graphics
HDR Support
Rec. 2020 (Wide Color Gamut)
Microsoft DirectX® 12 Compatible
(i7-1165G7)
(i3-1115G4)
Pointing Device
Built-in Touchpad (with Microsoft PTP Multi Gesture & Scrolling Functionality)
Keyboard
Full-size Keyboard (with Embedded Numeric Keypad)
Or
(Factory Option) Full-size Multi-Color LED Keyboard (with
Numeric Keypad)
Audio
High Definition Audio Compliant Interface
2 * Built-In Speakers
Built-In Array Microphone
Or
Nahimic Audio
Security
Security (Kensington® Type) Lock Slot
BIOS Password
Intel PTT for Systems Without TPM Hardware
(
Factory Option) TPM 2.0
Introduction
M.2 Slots
Slot 1 for WLAN and Bluetooth Combo Module
Slot 2 for PCIe Gen4 x4SSD
(Factory Option) Slot 3 for 4G Module
Communication
Built-In 10/100/1000Mb Base-TX Ethernet LAN
1.0M HD Webcam
(Factory Option for Model B) 4G M.2 Module
WLAN/ Bluetooth M.2 Modules:
(Factory Option) Intel® Dual Band Wi-Fi 6 AX200, 2x2 AX
Wireless LAN + Bluetooth
(Factory Option) Intel® Dual Band Wi-Fi 6 AX201, 2x2 AX
Wireless LAN + Bluetooth
(Factory Option) Intel® Dual Band Wi-Fi 5 Wireless-AC
9462, 1x1 AC Wireless LAN + Bluetooth
(Factory Option) Intel® Dual Band Wi-Fi 5 Wireless-AC
9560, 2x2 AC Wireless LAN + Bluetooth
Interface
One USB 3.2 Gen 2 Type-C Port*
Or
(Factory Option) One USB 3.2 Gen 2 Type-C Port with DisplayPort and Power Delivery (DC-In)
*The maximum amount of current supplied by USB Type-C
ports is 500mA (USB 2.0)/900mA (USB3.2).
One USB 3.2 Gen 2 Type-A Port
Or
(Factory Option) One Powered USB 3.2 Gen 2 Type-A Port
*When the PC
camera is in use,
the LED will be
illuminated in
white.
3. Built-In Array
Microphone
4. Display
5. Vent
6. Power Button
7. LED Indicators
8. Keyboard
9. Touchpad &
Buttons
24133
5
7
6
8
9
1.Introduction
External Locator - Top View with LCD Panel Open
1 - 4 External Locator - Top View with LCD Panel Open
External Locator - Front & Right Side Views
Figure 2
Front View
Figure 3
Right Side View
1. Speaker
2. USB 3.2 Gen 2
Type-C Port
Or
(Factory Option) USB 3.2
Gen 2 Type-C
Port with
DisplayPort and
Power Delivery
(DC-In)
3. USB 3.2 Gen 2
Type-A Port
Or
(Factory Option)
Powered USB
3.2 Gen 2 Type-A
Port
4. HDMI-Out Port
5. Battery Power
LED Indicator
6. DC-In Jack
FRONT VIEW
RIGHT SIDE VIEW
1
3
4
5
2
6
Introduction
1.Introduction
External Locator - Front & Right Side Views 1 - 5
1.Introduction
Figure 4
Left Side View
1. Security Lock Slot
2. RJ-45 LAN Jack
3. MicroSD Card
Reader
4. USB 2.0 Port
5. (Factory Option)
SIM Card Socket
6. 2-In-1 Audio Jack
(Headphone and
Microphone)
7. Speaker
LEFT SIDE VIEW
1
2
3
45
6
7
Figure 5
Rear View
REAR VIEW
Introduction
External Locator - Left Side & Rear View
/
1 - 6 External Locator - Left Side & Rear View
External Locator - Bottom View
Figure 6
Bottom View
1. Vent
2. RJ-45 LAN Jack
3. Speakers
Overheating
To prevent your computer from overheating, make sure nothing blocks any vent
while the computer is
in use.
1
33
2
Introduction
1.Introduction
External Locator - Bottom View 1 - 7
Introduction
Figure 7
Mainboard Top
Key Parts
1. KBC-ITE IT5570
2
3
1
1
1.Introduction
Mainboard Overview - Top (Key Parts)
1 - 8 Mainboard Overview - Top (Key Parts)
1
2
Figure 8
Mainboard Bottom
Key Parts
1. CPU
2. Memory Slots
DDR4 SO-DIMM
Mainboard Overview - Bottom (Key Parts)
Introduction
1.Introduction
Mainboard Overview - Bottom (Key Parts) 1 - 9
Introduction
Figure 9
Mainboard Top
Connectors
1. DC-In Jack
2. HDMI-Out Port
3. USB 3.2 Gen 2
Type-A Port
4. USB 3.2 Gen 2
Type-C Port
5. LED Keyboard
Connector
6. Keyboard Cable
Connector
7. Power BTN
Connector
6
7
1
2
3
5
4
1.Introduction
Mainboard Overview - Top (Connectors)
1 - 10 Mainboard Overview - Top (Connectors)
Mainboard Overview - Bottom (Connectors)
Figure 10
Mainboard Bottom
Connectors
1. CCD Cable
Connector
2. Fan Connector
3. M.2 Card
Connector
4. Speaker Connecto
5. HDD Connector
6. Battery Connector
7. Touchpad
Connector
8. SIM Connector
9. USB Board
Connector
10.CMOS Battery
Connector
11. LTE Connector
12.LAN Board
Connector
13.WLAN/BT
Connector
14.LCD Cable
Connector
10
1
2
4
6
7
3
5
8
9
14
4
11
12
13
Introduction
1.Introduction
Mainboard Overview - Bottom (Connectors) 1 - 11
1.Introduction
Introduction
1 - 12
Chapter 2: Disassembly
Information
Warning
Overview
This chapter provides step-by-step instructions for disassembling the NL50MU / NL51MU / NL52MU 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
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.
2.Disassembly
Overview 2 - 1
Disassembly
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 connectorsTo 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.
2 - 2 Overview
Pressure sockets for multi-wire connectorsTo 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 connectorsTo 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 socketsTo 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.
Maintenance Precautions
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.
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 magnetic fields.
These can hinder proper performance and damage components and/or data. 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 han-
dling 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 parts, such as screws,
loose inside the computer.
Cleaning
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.
(For Computer Models Supplied with Light Blue Cleaning Cloth) Some computer models in this series come supplied with a
light blue cleaning cloth. To clean the computer case with this cloth follow the instructions below.
•Power off the computer and peripherals.
•Disconnect the AC/DC adapter from the computer.
•Use a little water to dampen the cloth slightly.
•Clean the computer case with the cloth.
•Dry the computer with a dry cloth, or allow it time to dry before turning on.
•Reconnect the AC/DC adapter and turn the computer on.
Disassembly
2.Disassembly
Overview 2 - 3
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.
2.Disassembly
To remove the Battery:
1.Remove the battery page 2 - 5
To remove the HDD:
1.Remove the batterypage 2 - 5
2.Remove the HDDpage 2 - 9
To remove the System Memory:
1.Remove the batterypage 2 - 5
2.Remove the system memorypage 2 - 11
To remove the Keyboard:
1.Remove the batterypage 2 - 5
2.Remove the keyboardpage 2 - 13
To remove the Wireless LAN Module:
1.Remove the batterypage 2 - 5
2.Remove the WLAN page 2 - 14
To remove the 4G Module:
1.Remove the batterypage 2 - 5
2.Remove the 4G page 2 - 16
To remove the CCD Module:
1.Remove the batterypage 2 - 5
2.Remove the CCD modulepage 2 - 18
To remove the M.2 SSD Module:
1.Remove the batterypage 2 - 5
2.Remove the SSD modulepage 2 - 17
2 - 4 Disassembly Steps
Removing the Battery
1126
91314
13. Bottom Case
•12 Screws
Figure 1
Battery Removal -
36WH
a. Remove the screws.
b. Remove the bottom case.
c. Locate the battery.
a.
b.
1
2
4
c.
8
5
6
7
3
9
10
11
14
13
12
8
6
7
9
13
Note that battery removal procedure will differ depending on the battery type installed:
•See 36WH Battery Upgrade Process on page 2 - 5
•See 48WH Battery Upgrade Process on page 2 - 7
36WH Battery Upgrade Process
1.Turn off the computer, turn it over.
2.Remove screws - on the bottom case (Figure 1a).
3.Note to remove screws
as shown (Figure 1b
4.Carefully lift the bottom case up and remove it.
5.The battery will be visible at point on the computer (Figure 1c).
Disassembly
- , do so with the screwdriver angled at about 90 degrees to the computer surface
).
2.Disassembly
Removing the Battery 2 - 5
Disassembly
1516192021
20. Battery
•4 Screws
Figure 2
Battery Removal -
36WH (cont’d.)
c. Disconnect the cable and
remove the screws.
d. Lift the battery off the
computer.
f. Close the bottom cover
as shown.
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.
d.
20
17
16
18
e.
15
19
f.
21
21
6.Carefully disconnect the cable , then remove screws - (Figure 2d).
7.Lift the battery off the computer (Figure 2e
).
8.Reverse the process to install a new battery (do not forget to replace all the screws and bottom cover).
9.Make sure you close the bottom cover by applying pressure at point as shown (Figure 2f
).
2.Disassembly
2 - 6 Removing the Battery
48WH Battery Upgrade Process
1126
91314
13. Bottom Case
•12 Screws
Figure 3
Battery Removal -
48WH
a. Remove the screws.
b. Remove the bottom case.
c. Locate the battery.
a.
b.
1
2
4
c.
8
5
6
7
3
9
10
11
14
13
12
8
6
7
9
13
Hard Disk
Note that Models using a 48WH battery
will not have a hard disk installed.
1.Turn off the computer, turn it over.
2.Remove screws - on the bottom case (Figure 1a).
3.Note to remove screws
as shown (Figure 1b
).
4.Carefully lift the bottom case up and remove it.
5.The battery will be visible at point on the computer (Figure 1c).
- , do so with the screwdriver angled at about 90 degrees to the computer surface
Disassembly
2.Disassembly
Removing the Battery 2 - 7
Disassembly
1516192021
20. Battery
•4 Screws
Figure 4
Battery Removal -
48WH (cont’d.)
c. Disconnect the cable and
remove the screws.
d. Lift the battery off the
computer.
f. Close the bottom cover
as shown.
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.
d.
20
17
16
18
e.
15
19
f.
21
21
6.Carefully disconnect the cable , then remove screws - (Figure 2d).
7.Lift the battery off the computer (Figure 2e
).
8.Reverse the process to install a new battery (do not forget to replace all the screws and bottom cover).
9.Make sure you close the bottom cover by applying pressure at point as shown (Figure 2f
).
2.Disassembly
2 - 8 Removing the Battery
Removing the Hard Disk Drive
12345
2
2
a.
c.
5
4
b.
1
3
Figure 5
HDD Assembly
Removal
a. Locate the HDD.
b. Remove the screws and
disconnect the HDD
from the connector.
c. Lift the HDD assembly
out of the bay.
4. HDD Assembly
•1 Screw
Powering the
Computer On
After every disassembly, make sure that the
bottom case’s screws
are all inserted and
tightened before opening the Lid/LCD and
turning the computer
on.
Note that Models using a 48WH battery will not have a hard disk installed.
The hard disk drive can be taken out to accommodate other 2.5" serial (SATA) hard disk drives with a height of 7.0mm
(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.
Hard Disk Upgrade Process
1.Turn off the computer, and remove the battery (page 2 - 5).
2.The HDD will be visible at point on the mainboard (Figure 5a
3.Remove screws
tor
4.Lift the hard disk assembly out of the bay (Figure 5c).
(Figure 5b).
Disassembly
).
from the HDD assembly. Slightly lift and disconnect the hard disk assembly from the connec-
2.Disassembly
Removing the Hard Disk Drive 2 - 9
6
7
8
9
d.
7
9
8
6
HDD System Warning
New HDD’s are blank. Before you begin make
sure:
You have backed up any data you want to
keep from your old HDD.
You have all the CD-ROMs and FDDs required to install your operating system and
programs.
If you have access to the internet, download
the latest application and hardware driver updates for the operating system you plan to install. Copy these to a removable medium.
6. Bracket
7. HDD
•2 Screws
Figure 6
HDD Assembly
Removal (cont’d.)
d. Remove the screws and
bracket from the HDD.
Disassembly
5.Remove screws - and bracket from the hard disk (Figure 6d).
6.Reverse the process to install a new hard disk (do not forget to replace the screws).
2.Disassembly
2 - 10 Removing the Hard Disk Drive
Removing the System Memory (RAM)
Figure 7
RAM Module
Removal
a. The RAM modules will
be visible at point
on the mainboard.
b. Pull the release lat-
ches.
c. Remove the module.
Contact Warning
Be careful not to touch
the metal pins on the
module’s connecting
edge. Even the cleanest
hands have oils which
can attract particles, and
degrade the module’s
performance.
1
4. RAM Module
123
4
a.
1
b.
c.
3
3
Single Memory Module Installation
If your computer has a single memory module, then insert the module into the Channel
0 (JDIMM1 / RAM1) socket.
2
2
4
The computer has two memory sockets for 260 pin Small Outline Dual In-line Memory Modules (SO-DIMM) supporting
DDR4 2400MHz. The main memory can be expanded up to 32GB. The total memory size is automatically detected by
the POST routine once you turn on your computer.
Memory Upgrade Process
1.Turn off the computer, turn it over to remove the battery (page 2 - 5).
2.The RAM modules will be visible at point on the mainboard (Figure 7b
3.Gently pull the two release latches ( & ) on the sides of the memory socket in the direction indicated by the
arrows (Figure 7b).
4.The RAM module will pop-up (Figure 7c), and you can then remove it.
Disassembly
).
2.Disassembly
Removing the System Memory (RAM) 2 - 11
Disassembly
2.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. DO NOT FORCE IT; it should fit without much pressure.
8.Press the module in and down towards the mainboard until the slot levers click into place to secure the module.
9.Replace the bottom case and the screws
10. Restart the computer to allow the BIOS to register the new memory configuration as it starts up.
(see page 2 - 5).
2 - 12 Removing the System Memory (RAM)
Removing the Keyboard
12345
6
7
8
6
b.
c.
a.
1
6
7
8
4
2
3
c.
5
6
3
4. Eject Stick
6. Keyboard
Figure 8
Keyboard Removal
a.
b. Release the keyboard by
pressing at point .
c. Disconnect the keyboard
ribbon cable from the
locking collar socket.
d. Remove the keyboard.
3
1.Turn off the computer, turn it over to remove the battery (page 2 - 5).
2.Locate the release points - from the open bottom case (Figure 8a).
3.Open it up with the LCD on a flat surface before pressing at point
cific eject stick to do this) while releasing the keyboard in the direction of the arrow
4.Carefully lift the keyboard up, being careful not to bend the keyboard ribbon cable . Disconnect the keyboard ribbon cable from the locking collar socket (Figure 8c).
5.Carefully lift up the keyboard off the computer (Figure 8d).
6.Reverse the process to install the keyboard (be careful not to bend the keyboard ribbon cable).
to release the keyboard module (use the spe-
as shown (Figure 8b).
Disassembly
2.Disassembly
Removing the Keyboard 2 - 13
Disassembly
123
4
5
b.
c.
a.
2
3
5
1
5
4
5.Wireless LAN Module
•1 Screw
Figure 9
Wireless LAN
Module Removal
a. Locate the WLAN.
b. Disconnect the cable
and remove the screw.
c. The WLAN module will
pop up and lift it out of
the computer.
Note: Make sure you
reconnect the antenna
cable to the “1 + 2”
socket (Figure 9b).
Removing the Wireless LAN Module
1.Turn off the computer, turn it over to remove the battery (page 2 - 5).
2.The Wireless LAN module will be visible at point on the mainboard (Figure 9a).
3.Carefully disconnect the cables & , and then remove the screw (Figure 9b)
4.The Wireless LAN module (Figure 9c) will pop-up, and you can remove it from the computer.
5.Reverse the process to install a new module (do not forget to replace all the screws and bottom cover).
2.Disassembly
2 - 14 Removing the Wireless LAN Module
Wireless LAN, and Combo Module Cables
Note that the cables for connecting to the antennae on WLAN, 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
Module Type
WLAN/WLAN & Bluetooth
Combo
LTE Broadband
Antenna
Type
WL 1BlackTransparent
WL 2BlackWhite
LTE 1BlackBlack
LTE 2BlackBlue
Cable Color
Cable Cover
Type
Cable 1 is usually connected to antenna 1 (Main) on the module, and cable 2 to antenna 2 (Aux).
2.Disassembly
Wireless LAN, and Combo Module Cables 2 - 15
Disassembly
123
4
5
b.
c.
a.
2
3
5
1
5
4
5.4G Module
•1 Screw
Figure 10
4G Module Removal
a. Locate the WLAN.
b. Disconnect the cable
and remove the screw.
c. The WLAN module will
pop up and lift it out of
the computer.
Removing the 4G Module
1.Turn off the computer, turn it over to remove the battery (page 2 - 5).
2.The module will be visible at point on the mainboard (Figure 9a).
3.Carefully disconnect the cables & , and then remove the screw (Figure 9b)
4.The module (Figure 9c) will pop-up, and you can remove it from the computer.
5.Reverse the process to install a new module (do not forget to replace all the screws and bottom cover).
2.Disassembly
2 - 16 Removing the 4G Module
Removing the M.2 SSD Module
1
2
3
b.
c.
a.
2
3
1
3
3.M2 SATA Module
•1 Screw
Figure 11
M.2 SSD Module
Removal
a. Locate the M.2 SSD.
b. Remove the screw.
c. The M.2 SSD module
will pop up.
1.Turn off the computer, turn it over to remove the battery (page 2 - 5).
2.The M.2 SSD module will be visible at point on the mainboard (Figure 11a).
3.Remove the screw
4.The M.2 SSD module (Figure 11c) will pop-up, and you can remove it from the computer.
5.Reverse the process to install a new module (do not forget to replace all the screws and bottom cover).
(Figure 11b)
Disassembly
2.Disassembly
Removing the M.2 SSD Module 2 - 17
1
3
5
4
b.
a.
3
2
4
1
2
4
4. LCD Front Cover
•
Figure 12
CCD Removal
a. Run your fingers around
the inner frame of the
LCD panel at the points
indicated by the arrows.
b. Lay the computer down
on a flat surface with the
top case up forming a 90
degree angle. Lift the
LCD front panel upwards.
2.Disassembly
Disassembly
Removing the CCD
1.Turn off the computer, turn it over to remove the battery (page 2 - 5).
2.Run your fingers around the inner frame of the LCD panel at the points as indicated by the arrows - (Figure
12a).
3.Lay the computer down on a flat surface with the top case up forming a 90 degree angle. Carefully lift and remove
the LCD front cover upwards (Figure 12b).
2 - 18
Disassembly
5
6
d.
c.
6
5
6.
u
r
e
t
c.
d.
e
ule.
4.Disconnect the cable (Figure 13f).
5.Remove the CCD module (Figure 13g).
6.Reverse the process to install a new CCD module.
Figu
CCD R
(con
Disconnect
Remove th
2.Disassembly
CCD Mod
Removing the CCD 2 - 19
Disassembly
2.Disassembly
2 - 20 Removing the CCD
Disassembly
2.Disassembly
Removing the CCD 2 - 21
Disassembly
2.Disassembly
2 - 22 Removing the CCD
Appendix A: Part Lists
This appendix breaks down the NL50MU / NL51MU / NL52MU 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.
Note: Some assemblies may have parts in common (especially screws). However, the part lists DO NOT indicate the
total number of duplicated parts used.
Note: Be sure to check any update notices. The parts shown in these illustrations are appropriate for the system at the
time of publication. Over the product life, some parts may be improved or re-configured, resulting in new part numbers.
A.Part Lists
A - 1
Table A - 1
Part List Illustration
Location
Part List Illustration Location
The following table indicates where to find the appropriate part list illustration.
Part
Top
page A - 3
A.Part Lists
Bottom
LCD
HDD
MB
page A - 4
page A - 5
page A - 6
page A - 7
A - 2
Top
Figure A - 1
Top
A.Part Lists
Top A - 3
A.Part Lists
Figure A - 2
Bottom
Bottom
A - 4 Bottom
LCD
Figure A - 3
LCD
A.Part Lists
LCD A - 5
A.Part Lists
Figure A - 4
HDD
HDD
A - 6 HDD
MB
Figure A - 5
MB
A.Part Lists
MB A - 7
A.Part Lists
A - 8
Appendix B: Schematic Diagrams
Table B - 1
SCHEMATIC
DIAGRAMS
Version Note
The schematic diagrams in this chapter
are based upon version 6-7P-NL4M5-002.
If your mainboard (or
other boards) are a later version, please
check with the Service
Center for updated diagrams (if required).
This appendix has circuit diagrams of the NL50MU / NL51MU / NL52MU notebook’s PCB’s. The following table indicates where to find the appropriate schematic diagram.
System Block Diagram - Page B - 2Panel - Page B - 182.5V, VCCST, VCCSTG - Page B - 34
Processor 1/12 - Page B - 3USB Type-C ANX7443 - Page B - 19Power PD Function - Page B - 35
Processor 2/12 - Page B - 4ANX7411, Type-C - Page B - 20NCP81269 - Page B - 36
Processor 3/12 - Page B - 5ASM1543 - Page B - 213.3V, 5V, 3VS, 5VS, CTL - Page B - 37
Processor 4/12 - Page B - 6LED KB, LED - Page B - 22Charger, AC IN - Page B - 38
Processor 5/12 - Page B - 7SATA HDD, TPM - Page B - 23VCCIN - Page B - 39
Processor 6/12 - Page B - 8Audio Codec - Page B - 24RTL8411B - Page B - 40
Processor 7/12 - Page B - 9KBC ITE IT5570 - Page B - 25Multi Board RTS5227S / OZ711 - Page B - 41
Processor 8/12 - Page B - 10WLAN - Page B - 26LAN Transformer - Page B - 42
Processor 9/12 - Page B - 11M Key PCIE SSD - Page B - 27LAN Board Connector - Page B - 43
Processor 10/12 - Page B - 123G/LTE - Page B - 2814” I/O Board - Page B - 44
Processor 11/12 - Page B - 13USB Type-A - Page B - 2915” I/O Board 1 - Page B - 45
Processor 12/12 - Page B - 14Conn, CCD, Fan, TP - Page B - 3015” I/O Board 2 - Page B - 46
DDR4 SO-DIMM_A - Page B - 15VDD3, VDD5 - Page B - 31PWR Button Board - Page B - 47
DDR4 SO-DIMM_B - Page B - 16VDDQ, VDDQ_VTT, 1.8VA - Page B - 32Power Sequence - Page B - 48
HDMI - Page B - 173.3VA, 1.8V - Page B - 33
Schematic Diagrams
Diagram - PageDiagram - PageDiagram - Page
B.Schematic Diagrams
B - 1
Schematic Diagrams
Sheet 1 of 47
System Block
Diagram
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
SHEET 33
NLx0MU Tiger LAKE UP3 System Block Diagram
SHEET 32
TOUCH PAD
ESPI
USB3.1
SMART
BATTERY
SHEET 37
PCIE
BIOS
SHEET 5
SENTELIC
USB2.0 480Mbps
USB2.0 port2
USB3.1 port2
SHEET 19
SHEET 18
SHEET 24
128pins LQFP
CHARGER,AC IN
SHEET 37
32.768KHz
SHEET 17
eDP
SHEET 19
EC SMBUS
SYSTEM SMBUS
3200MHz
DDR4
HDD
SHEET 22
ITE5570
Tiger Lake
INT. K/B
EC
SHEET 29
SHEET 30
VDDQ,VDDQ_VTT
1.8VA
2.5V/VCCST/VCCSTG
3.3VA,1.8V
SHEET 2~13
SHEET 2
3200MHz
DDR4
SHEET 16
HDMI 1.4
14*14*1.6mm
100 MHz
THERMAL
SENSOR
24MHz
SHEET 24
SMART
FAN
SHEET 29
SHEET 31
VDD3,VDD5
SPI
DDR4
SHEET 14
SO-DIMM A
6-71-NL4M0-D02
6-71-NL4M1-D01
6-7P-NL4M5-002
MAIN BOARD
SHEET 2~38
SHEET 43
14" I/O BOARD
5 IN 1
SYSTEM SMBUS
DDR4
SHEET 15
SO-DIMM B
SATA
PCIE 4
SHEET 26
M.2 SSD
RPGA1528 46x24mm
PROCESSOR
24 MHz
USB2.0 port1
M.2
SHEET 25
CNVI
SHEET 28
USB3.1 port1
AC-IN
3.3V,5V,3VS,5VS,CTL
SHEET 36
VCCIN_AUX
SHEET 35
PWR_PD FUNCTION
SHEET 34
VCCIN
SHEET 38
Type-C
CCD+INT MIC
SHEET 29
RGBIR CMR
SHEET 19
DDIB
DDIA
ANX7443
SHEET 18
ANX7411
SHEET 19
ANX7443
ANX7411
SHEET 20
ASM1543
Colay
Colay
PCIE10
M.2
SHEET 27
3G/LTE
USB2.0 port4
USB3.1 port4
USB2.0 port7
SIM Socket
SHEET 44
15" I/O BOARD
SHEET 21
KB LED
6-71-NL5M1-D01
15" I/O BOARD
SHEET 44~45
6-71-NL5MC-D01
15" PWR BTN BOARD
SHEET 46
6-71-NL4MZ-D02
LAN BOARD
SHEET 39~42
SHEET 22
TPM
I2C
USB 3.1 Gen2 TYPE A
USB 3.1 Gen2 TYPE C
W/ DP
W/O DP
SHEET 23
Azalia Codec
I/O BOARD
CM6542
USB2.0 port3
SHEET 23
INT SPKER-R
INT SPKER-L
HP
MIC
SHEET 44,45
SHEET 43,44
HP
MIC
HP AMP
SA8908
USB2.0 480Mbps
SPK AMP
TPA2008D2
USB2.0 port6
USB 2.0 TYPE A
SHEET 43
USB2.0 port5
USB 2.0 TYPE A
LAN Board
connector
SHEET 41
SHEET 42
LAN Transformer
PCIe7
non-VPRO:i219-V
VPRO:Intel i219-LM
INTEL LAN
SHEET 39
OZ711 /SD
SHEET 40
WLAN
CPU
TCP0
14"
15"
USB2.0 port5
D02 modify
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System Block Diagram
B.Schematic Diagrams
B - 2 System Block Diagram
Processor 1/12
Sheet 2 of 47
Processor 1/12
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
EVT ⼴䴻 The r mal ⼙⁷䅙䚠 ₨ 䡢 ⭂ PCB
㚨檀㹓 ⹎ , NTC ㅱ 娚㓦伖PC B 㚨 檀 㹓 ⹎ 嗽 .
Normal turn on
and fall to LP#
target value after
PG + 1 ms
EN
LOW
Asserted when
output reaches
nominal voltage
and remains high
during LP# = 0
OUTPUTLP#PG
0 V, Off
HIGH
00
010 V, Off
LOW
11Remains asserted
after SS
01
VCCSTG
20mA
Modern Standby
DEFAULT
SHORT
60mA+150mA(VCCPLL) = 210mA
VCCST
1A
Ra
Rb
1A
Vout = 0.8V ( 1 + Ra / Rb )
For CV test
2.5V_LDO
DEFAULT
SHORT
1.05V_VCCSTG_ENVCCSTG_EN
VCCSTG
1.05V_VCCSTG_EN
SLP_S0#
VCCST
1.05V_VCCST_EN
VCCST_EN1.05V_VCCST_EN
VFB
2.5V_PG
2.5V_EN
V1P05_OUT_FET
VDD3
3.3VA
VDD3
VCCSTG
VDD3
VDD3
V1P05_OUT_FET
VCCST
VDD3
VDD3
VCCST
VCCSTG
3.3V
5V
2.5V
VDD3
3.3VA
3.3_VCCST_OVERRIDE[10,33]
CPU_C10_GATE#[10,24]
3.3_VCCST_OVERRIDE[10,33]
SUSB#[10,17,23,28,36]
SLP_S0#[10,24]
SUSC#[10]
2.5V_PG[31]
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PJ6*CV-40mil
12
PU8
G9661MF11U
GND
8
VCNTL
4
NC
5
VIN
3
VOUT
6
VFB
7
POK
1
EN
2
GND
9
R460
*100K_04
R462 120_04
PU6
FA7609A6
NC
3
GND
1
VIN
2
VOUT
4
VBIAS
5
ON
6
C408
*10u_6.3V_X5R_06
S
D
G
Q29B
*MTDK3S6R
5
34
C386
0.1u_6.3V_X5R_02
R4930_04
PC156
1u_6.3V_X5R_04
C392
*0.1u_10V_X5R_04
U24
74LVC1G32
4
53
1
2
PJ15 OPEN-1mm
12
R505*0_04
U26
74LVC1G32
4
53
1
2
PC149
10u_6.3V_X5R_06
PR132
10K_1%_04
PC144
82p_50V_NPO_04
R494*0_04
PR133
21.5K_1%_04
R4670_04
R456*0_04
R457
*100K_04
S
D
G
Q30B
*MTDK3S6R
5
34
R4550_04
C407
*10u_6.3V_X5R_06
R466*0_04
PC145
0.1u_10V_X5R_04
PC154
0.1u_10V_X5R_04
PU5
FA7609A6
NC
3
GND
1
VIN
2
VOUT
4
VBIAS
5
ON
6
C387
1u_6.3V_X6S_04
C405
1u_6.3V_X5R_02
C406
1u_6.3V_X5R_02
R452
*33_04
C391
0.1u_6.3V_X5R_02
PC152
0.1u_10V_X5R_04
R5060_04
PJ71mm
12
PR38
100K_04
S
D
G
Q30A
*MTDK3S6R
2
61
C396
0.1u_6.3V_X5R_02
R458
*33_04
C399
0.1u_6.3V_X5R_02
S
D
G
Q29A
*MTDK3S6R
2
61
C393
1u_6.3V_X6S_04
PC153
22u_6.3V_X5R_06
PR130
*47K_04
C388
0.1u_6.3V_X5R_02
Sheet 33 of 47
2.5V, VCCST,
VCCSTG
Schematic Diagrams
2.5V, VCCST, VCCSTG
B.Schematic Diagrams
B - 34 2.5V, VCCST, VCCSTG
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
For Dead Battery
TYPEC-IN
W/_TYPE_C+DP
W/O_TYPE_C+DP
3.5A
3.5A
D02A Change footprint
D02 modify
W PD FUNCTION
300K_1%_04
W/O PD FUNCTION
100K_04
resolve DC mode
㛒攳㨇㗪
,PD
䃉 㱽暣
issue
resolve DC mode
㛒攳㨇㗪
,PD
䃉 㱽暣
issue
20210816
20210816
VBUS_LDO3.3V
TYPE-C_VBUS
JDC_AC
TYPE-C_VBUS
VA1
SINK_CTRL[19]
SINK_CTRL_EC [24]
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U13
AP2204K-ADJTRG1
W/_TYPE_C+DP
VIN
1
GND
2
EN3ADJ
4
VOUT
5
PR148
100K_04
W/_TYPE_C+DP
PC90
*10u_25V_X5R_08
PC97
0.1u_25V_X7R_06
PD10SK54B
W/_TYPE_C+DP
PCB Footprint = do-214aa
AC
R351
3.48K_1%_04
W/_TYPE_C+DP
PR134
*100K_04
W/_TYPE_C+DP
PR124
100K_1%_06
W/_TYPE_C+DP
PR13610K_04
W/_TYPE_C+DP
PC94
10u_25V_X5R_08
PQ13
2SK3018S3
W/_TYPE_C+DP
G
DS
PR143
100K_1%_06
W/_TYPE_C+DP
J_DC_JACK1
2DC3206-001111F
P/N = 6-20-B3210-003
PCB Footprint = 2dc3206-000111f
GND2
GND1
2
1
PD11
SK54B
W/_TYPE_C+DP
PCB Footprint = do-214aa
AC
PR137
200K_04
W/_TYPE_C+DP
PC147
*0.1u_25V_X7R_06
W/_TYPE_C+DP
EMC7
0.1u_25V_X7R_06
W/_TYPE_C+DP
PD13
MM3Z15V
W/_TYPE_C+DP
AC
R341 0_04
W/_TYPE_C+DP
PRS2
0.01_1%_32
W/O_TYPE_C+DP
PR13510K_04
W/_TYPE_C+DP
PR141
100K_04
W/_TYPE_C+DP
PQ10
MTD13P03H8
W/_TYPE_C+DP
4
62
5731
8
PR14020K_04
W/_TYPE_C+DP
R342
2K_04
W/_TYPE_C+DP
PR147
300K_1%_04
W/_TYPE_C+DP=6-13-30031-28C, W/O=6-14-1043B-11B
PQ11
2SK3018S3
W/_TYPE_C+DP
G
DS
C480
10u_6.3V_X5R_06
W/_TYPE_C+DP
Sheet 34 of 47
Power PD Function
Power PD Function
Schematic Diagrams
B.Schematic Diagrams
Power PD Function B - 35
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
Co-lay
14A
AOZ2264VQI_BST
AOZ2264VQI_BST_1
AOZ2264VQI_SW
AOZ2264VQI_RGND
AOZ2264VQI_VFB
AOZ2264VQI_VFB
VCCIN_AUX_VI D0
VCCIN_AUX_VI D1
AOZ2264VQI_VCC
AOZ2264VQI_VFB
VIN
VCCIN_AUX
VCCIN_AUX
VDD5
VDD5
VDD5
AUX_VSS_SENSE [11]
AUX_VCC_SENSE [11]
VCCIN_AUX_VI D0[11]
VCCIN_AUX_VI D1[11]
1.8VA_PWRGD[31]
Title
Size
Document NumberRev
Date:Sheet
of
6-71-NLx0MU-D02
D02
[35] NCP81269
A2
3547Wednesday,August 18, 2021
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
NLx0MU
Title
Size
Document NumberRev
Date:Sheet
of
6-71-NLx0MU-D02
D02
[35] NCP81269
A2
3547Wednesday,August 18, 2021
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
NLx0MU
Title
Size
Document NumberRev
Date:Sheet
of
6-71-NLx0MU-D02
D02
[35] NCP81269
A2
3547Wednesday,August 18, 2021
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
NLx0MU
PL6
CMME063T-R24MS1R197
12
PR121
*100K_1%_04
PU4
AOZ2264VQI-30
BST
20
PGND#1
12
PGND#2
13
IN#1
7
VOUT
4
MODE_SET
5
PGND#4
15
LX#1
10
LX#3
17
LX#2
16
PGOOD
6
RGND
3
EN
19
PGND#3
14
LX#4
18
VCC
21
IN#2
22
VID0
1
AGND
2
VID1
23
LX#5
11
LX#6
25
IN#3
9
IN#4
24
IN#5
8
PR119 *10K_04
PR120 0_04
PR114
0_04
PR113
*100K_04
PC120
22u_6.3V_X6S_08
+
PC119
2R0AVEC331M0545E09
PR123 0_04
PR116
*100K_04
PR111
2.2_06
PC124
10u_25V_X6S_08
PC123
22u_6.3V_X6S_08
+
PC118
*PSLB30E227M
PC132
1u_25V_X7R_06
PC121
0.1u_25V_X7R_06
PC128
22u_6.3V_X6S_08
PR112 2_06
PC130
22u_6.3V_X6S_08
PC133
0.01u_50V_X7R_04
PC122
22u_6.3V_X6S_08
+
PC125
*25TQC15MYFB
PC127
4.7u_6.3V_X6S_06
PC13
0.1u_25V_X7R_06
PC129
22u_6.3V_X6S_08
PC131
*1000p_50V_X7R_04
PR115
100_04
PC126
10u_25V_X6S_08
PC117
*2200p_50V_X7R_04
PR122
100_04
PR118 10K_04
PR110
*2.2_06
PR117
*10K_1%_04
PC11
0.1u_25V_X7R_06
PJ14*CV-4 0mil
12
Sheet 35 of 47
NCP81269
Schematic Diagrams
NCP81269
B.Schematic Diagrams
B - 36 NCP81269
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
ONON
ONON
DD_ON#SUSB
ON
6A
5VS
6A
5V
EM5290
PCBfootprint:
TDFN14-2X3MM-A
2nd source G5016
6A
3.3VS
EM5290
PCBfootprint:
TDFN14-2X3MM-A
2nd source G5016
SHORTSHORT
DEL J9
0901 5V, 5VS
⮵婧
0905 change footprint
0905 change footprint
Qpxfs! p o
WEE40WEE6! QXN
3.3V
6A
D02 CHANGE COMON
SUSB
VDD3_R
SUSB#
5VS_EN1SUSB#_ENDD_ON
VDD3_R
5V_EN2
5VS_CT15V_CT2
SUSB#_EN
3.3VS_CT1
SUSB#_EN1
SUSB
DD_ON#
SUSB
PWR_SW#
M_BTN
DD_ON_EN
DD_ON#
DD_ON#
3.3V_CT2
EN2
DD_ON_EN
VDD3
VDD3
VIN
VIN
VDD5
5VS
VDD3
VDD5
5V
VDD5
VDD3
3.3VS
VREG3
VREG3
VREG3
VDD3
VDD3
3.3V
SUSB [22,31]
SUSB#[10,17,23,28,33]
DD_ON[24,28,30]
PWR_SW# [24]
M_BTN#[29]
DD_ON_EN [32]
DD_ON# [32]
Title
SizeDocument NumberRev
Date:Sheet
of
D02
[36] 3.3V,5V,3VS,5VS,CTL
A3
3647Wednesday, August 18, 2021
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
NLx0MU
6-71-NLx0MU-D02
Title
SizeDocument NumberRev
Date:Sheet
of
D02
[36] 3.3V,5V,3VS,5VS,CTL
A3
3647Wednesday, August 18, 2021
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
NLx0MU
6-71-NLx0MU-D02
Title
SizeDocument NumberRev
Date:Sheet
of
D02
[36] 3.3V,5V,3VS,5VS,CTL
A3
3647Wednesday, August 18, 2021
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
NLx0MU
6-71-NLx0MU-D02
R244
100_04
C245
*30p_25V_NPO_02
R62
47K_04
C469
1u_6.3V_X5R_02
R55810K_04
C252
1u_6.3V_X5R_02
C215
0.1u_6.3V_X5R_02
R266
10K_04
C472
220p_50V_NPO_04
R297 10K_04
R332
100_06
C470
*0.1u_6.3V_X5R_02
Q31
*2SK3018S3
G
DS
R291
100K_04
C481
0.1u_6.3V_X5R_02
S
D
G
Q4A
MTDK3S6R
2
6
1
J3*CV-40mil
JUMP-1MM
12
R298
10K_04
C233
0.1u_6.3V_X5R_02
J4
OPEN-1mm
12
C253
*0.1u_6.3V_X5R_02
S
D
G
Q4B
MTDK3S6R
5
3
4
C482
0.1u_6.3V_X5R_02
C479 *1000p_50V_X7R_04
C217
220p_50V_NPO_04
C465
0.1u_6.3V_X5R_02
C466
0.1u_6.3V_X5R_02
Q11
2SK3018S3
G
DS
R250
*100_04
G2898KD1UU10
CT2
10
OUT2
8
EN2
5
VBIAS
4
IN2
6
GND11EN1
3
CT1
12
OUT1
13
IN1
1
IN1
2
OUT1
14
IN2
7
OUT2
9
GND
15
R72
300K_1%_04
R651K_04
C218
*0.1u_6.3V_X5R_02
C258 1000p_50V_X7R_04
R314 10K_04
ED1
*V15AVLC0402
12
G2898KD1U
U32
CT2
10
OUT2
8
EN25VBIAS
4
IN2
6
GND11EN1
3
CT1
12
OUT1
13
IN1
1
IN1
2
OUT1
14
IN2
7
OUT2
9
GND
15
C468
220p_50V_NPO_04
J5*CV-40mil
JUMP-1MM
12
Q35
*2SK3018S3
G
DS
Q12
2SK3018S3
G
DS
C228
0.1u_6.3V_X5R_02
R304
100K_04
R245 *100_04
R561
10K_04
R64
47K_04
R69
1M_04
J1
*CV-40mil
JUMP-1MM
12
C216
470p_50V_X7R_04
C251
*0.1u_6.3V_X5R_02
Q33
2SK3018S3
G
DS
R265
100K_04
C232
0.1u_6.3V_X5R_02
C473
*0.1u_6.3V_X5R_02
Q14
2SK3018S3
G
DS
J2
OPEN-1mm
12
Sheet 36 of 47
3.3V, 5V, 3VS, 5VS,
CTL
3.3V, 5V, 3VS, 5VS, CTL
Schematic Diagrams
B.Schematic Diagrams
3.3V, 5V, 3VS, 5VS, CTL B - 37
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
㍉岤
7/29
㍉岤
7/29
CLOSE TO EC
connect to IMVP PSYS function
Detect Battery present
AC Detect 17.2V
close to IC
close to Rsense
5A
SMART CHARGER OZ26786
3.5A
Power 8/4
26786_Prochot#
26786_LX
26786_IAD
26786_LDR
26786_HDR
26786_BST
26786_VDDP
BAT_DET
26786_CNI
26786_COMP
26786_CNFB
26786_ICHP
26786_ICHM
SMD_BAT
26786_SCL
26786_SDA
SMC_BAT
26786_PB
26786_BATTON#
26786_IACP
26786_IACM
26786_CEN
26786_PSYS
26786_PA
26786_ACAV
26786_IBATT
26786_IAD
26786_ADDIV
26786_VAC
26786_VAC_R
26786_PB
26786_VAC_R
V_BAT
SMD_BAT
SMC_BAT
BATVLT
BATGS
V_BAT
26786_ACAV
26786_PSYS
V_BAT
VDD3
VREG3
VA
VA1
VIN
JDC_AC
TYPE-C_VBUS
VIN
VDD3
VDD3
VDD3
VA
SMC_BAT [24]
SMD_BAT [24]
BAT_DET[24]
BAT_VOLT [24]
AC_IN# [13,24]
TOTAL_CUR[24]
PSYS[38]
Title
Size
Document NumberRev
Date:Sheet
of
D02
[37] CHARGER,AC IN
Custom
3747Wednesday, August 18,2021
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
NLx0MU
6-71-NLx0MU-D02
Title
Size
Document NumberRev
Date:Sheet
of
D02
[37] CHARGER,AC IN
Custom
3747Wednesday, August 18,2021
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
NLx0MU
6-71-NLx0MU-D02
Title
Size
Document NumberRev
Date:Sheet
of
D02
[37] CHARGER,AC IN
Custom
3747Wednesday, August 18,2021
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
NLx0MU
6-71-NLx0MU-D02
PQ18
PDC3906Z
<FUNCTION>
4
5255315
PR44
0_04
PD3
SS14WS
AC
PC46 33p_25V_NPO_02
PC48 47p_50V_NPO_04
PR126
4.7_06
PC20
10u_25V_X5R_08
PC163
0.01u_25V_X7R_04
PC43
*0.1u_25V_X7R_06
PC179
1000p_50V_X7R_04
26786LN
PU1
HDR
17
PB
15
BST
18
VAD13VAC
22
VDDP
21
SDA
6
ICHP
26
ICHM
27
IBATT
3
LX
16
SCL
5
ACAV
23
IACM
1
LDR
20
PA
14
IAD
4
IACP
2
PSYS
25
Prochot#
10
VSYS
12
ADDIV
24
GNDP19GNDA
29
BATTON#
11
CNFB8COMP7CNI
9
CEN
28
PC39 47p_25V_NPO_0 2
PR43 3.3_06
PC161 10u_25V_X5R_08
PR32 4.02K_1%_04
PC50 1200p_50V_X7R_04
PC157
1500p_50V_04
PR490_04
PR48*0_04
PR63
60.4K_1%_04
PC18
0.1u_25V_X7R_06
PC28
0.1u_25V_X7R_06
PC35
*2200p_50V_X7R_04
PQ12
MMBT3904H
B
E C
PRS3
WMCSL0612R020FETA
PC52 *0.1u_25V_X7R_06
PC17
0.1u_25V_X7R_06
PR5610K_1%_04
PC34 47p_25V_NPO_0 2
PC175
4.7u_25V_X7R_08
PR54 60.4K_1%_04
EMC6
0.1u_25V_X7R_06
PR62
100K_04
PC167
0.1u_25V_X5R_04
PR61
300K_1%_04
PC19
0.1u_25V_X7R_06
PR47 *100K_1%_04
PC41
100p_50V_NPO_04
PC158
0.1u_25V_X5R_04
PC27
1000p_50V_X7R_04
PC45 82p_50V_NPO_04
L4
HCB2012KF-800T80
PD151N914BWS
AC
PC159
4.7u_25V_X7R_08
PR52 499_1%_04
PC164 *10u_25V_X5R_08
PC53
0.1u_10V_X5R_04
PC36 0.47uF_25V_X5R_04
PR152 *10mil_short
PC165 *10u_25V_X5R_08
PR57 100_1%_04
PC33
4.7u_25V_X5R_06
PC26 1000p_50V_X7R_04
PR151 *10mil_short
EMC1
0.1u_25V_X7R_06
PC14
2200p_50V_X7R_04
PC15
*0.1u_25V_X7R_06
PR59 15K_1%_04
PR125
4.7_06
PC142
2.2u_25V_X5R_08
PC37 47p_25V_NPO_0 2
PR42 3.3_06
PR58 100_1%_04
PR55100K_1%_04
PR5110k_04
PL7
BCIHP0730SC-4R7M-X
12
PQ2
MDU1517
ULTRASO-8
G
D S
PR138
10K_04
PD4
1N914BWS
AC
PR131 10K_04
PC40 0.22u_25V_X7R _06
PQ3
MTE1K0P15KN3
G
DS
PR46 165K_1%_04
PD5
1N914BWS
AC
PC162 10u_25V_X5R_08
EMC5
0.1u_25V_X7R_06
PR500_04
PC51
*0.1u_25V_X7R_06
PD9
MM3Z15V
AC
PR45 750K_1%_04
PD6
1N914BWS
W/_TYPE_C+DP
AC
PR150
0_04
EMC4
0.1u_25V_X7R_06
PD12
SMAJ20A
AC
PC47 47p_50V_NPO_04
PR31 *10mil_short
PC49 *0.1u_25V_X7R_06
PC21
0.1u_25V_X7R_06
PC42
*0.1u_25V_X7R_06
PC22 *2200p_50V_X7R_04
PR60300_1%_04
PL2
HCB1005KF-121T20
PR41
*2.2_06
PR144
47K_04
PC174
4.7u_25V_X7R_08
PL1
HCB1005KF-121T20
PC143
10u_25V_X5R_08
PRS1
WMCSL0612R020FETA
PC32 0.47uF_25V_X5R_04
J_BAT1
P/N = 6-21-63900-108
PCB Footprint = 50458-008L
50458-00801-002
2
3
4
6
5
7
8
1
PQ1
PDC3906Z
4
52
5531
5
PR30 *10mil_short
PR129*0_04
PQ4
2SK3018S3
G
DS
PC44
*0.1u_25V_X7R_06
PD2
SS14WS
AC
PC160
*0.01u_50V_X7R_04
PQ14
PDC3906Z
4
5 2
5
5 3
1
5
PQ15
PDC3908Z
<FUNCTION>
4
5255315
PC38 1000p_25V_X7R_02
PC173
4.7u_25V_X7R_08
PR530_06
W/_TYPE_C+DP
Sheet 37 of 47
Charger, AC IN
Schematic Diagrams
Charger, AC IN
B.Schematic Diagrams
B - 38 Charger, AC IN
VCCIN
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
DEFAULT SHORT
Fsw~ 500KHZ
Place close to
CPU pins
Place close to
phase 1 Inductor
Place close to U8514
Co-lay
Co-lay
E-CAP
100u_25V
DEFAULT SHORT
CV TEST 1.8V
PSYS MAX 45W
Place close to
phase 1 MOSFET
Closed to NMOS
Closed to NMOS
ICCMAX 55A// DCLL 2m ohm /OCP:72A
22uF_0603_X5R_4V
36A
36A
2020/6/19 OSCAR
2020/6/19 OSCAR
D02 modify
20210624 PWR
D02 modify
20210624 PWR
Adjust PsysPmax to 49.5W problem
20210818
CSN1
SWN1
VR_EN_LVR_EN
NILIM
VSN
CSN3
SWN3
CSREF
PU4_SW1
PU4_SW3
PU4_BST3
PU4_HG3
PU4_SW3
PU4_LG1
PU4_SW1
PU4_HG1
303_CSP3
303_CSP2
303_CSP1
PU4_ICCMAX
PU4_ADD
PU4_VBOOT
PWM2
SWN1
SWN3
303_VSP
303_VSN
DIFFOUT
FB
COMP
PU4_ILIM
CSCOMP
CSSUM
PU4_VRMP
DRON
SWN1
CSREF
TSENSE
CSN3
CSN1
SWN3
CSREF
PU4_LG3
VCCST
3.3V
VIN
VIN
VIN
5V
3.3V
5V
5V
VCC_IN
VCC_IN
VCC_IN
5V
VIN
VINVIN
VCC_IN
VCC_IN
PSYS [37]
H_CPU_SVIDALRT# [11]
H_PROCHOT# [13]
H_CPU_SVIDCLK [11]
H_CPU_SVIDDAT [11]
VCC_SENSE[11]
VSS_SENSE[11]
ALL_SYS_PWRGD[10,17,24]
H_VR_READY[10]
Title
SizeDocument NumberRev
Date:Sheet
of
6-71-NLx0MU-D02
D02
[38] VCCIN
A3
3847Wednesday, August 18, 2021
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
NLx0MU
Title
SizeDocument NumberRev
Date:Sheet
of
6-71-NLx0MU-D02
D02
[38] VCCIN
A3
3847Wednesday, August 18, 2021
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
NLx0MU
Title
SizeDocument NumberRev
Date:Sheet
of
6-71-NLx0MU-D02
D02
[38] VCCIN
A3
3847Wednesday, August 18, 2021
ᙔ!Ϻ!ႝ!တ!!DMFWP!DP/
NLx0MU
T55D107M025C0060
PC74
PR90
*100_04
PJ21mm
12
PL5
CMME063T-R24MS1R197
12
PC6
0.1u_10V_X5R_04
PR70 2.2_06
PR810_04
PR1020_04
PR22 10K_04
PR100
4.3K_1%_04
PC116
22u_6.3V_X5R_06
EMC2
0.01u_50V_X7R_04
PR110_04
PR20 75K_1%_04
T25
PC67
1u_16V_X7R_06
PR107*100_04
PR1010_04
PR85 10K_1%_04
PR84
*100K_1%_04
PC76
0.022u_25V_X7R_04
PC88 47p_50V_NPO_04
PC63
0.01u_50V_X7R_04
PC92 470p_50V_X7R_04
PR691_06
+
PC108
*25TQC15MYFB
PR96 1K_1%_04
PC54
1000p_50V_X7R_04
PR731K_04
PC87 470p_50V_X7R_04
PC98
0.1u_25V_X7R_06
PC103
22u_6.3V_X5R_06
PR66 26.1K_1%_04
PR12_06
EMC3
0.01u_50V_X7R_04
PC86 2200p_50V_X7R_04
PC80
0.022u_25V_X7R_04
PR93
1K_1%_04
PR19
160K_1%_04
PR65 118K_1%_04
PR82
*20mil short-p
PR68 2.2_06
+
PC83
2R0AVEC331M0545E09
G2
SW
G1
S2
D1
S1
PQ9
AOE6932
1
4
2
8
9
6
5
7
3
10
PC110
0.1u_25V_X7R_06
PC114
22u_6.3V_X6S_08
PR24 120K_1%_06
PR1717.8K_1%_04
PR1050_04
PC4
1u_25V_X7R_06
PJ12
1mm
12
PC58
10u_25V_X6S_08
PR9
*100_04
PC55
0.22u_16V_X7R_06
PNTC1
*EWTF02-103F3I-N
12
PC105
1u_25V_X7R_06
PC84*0.1u_16V_X7R_04
PC93
22u_6.3V_X6S_08
PR16
40.2K_1%_04
PR23 10_04
*T55D107M025C0060
PC113
PC3
*0.1u_16V_X7R_04
PC95
1000p_50V_X7R_04
PR21*1K_1%_04
PR64 10K_1%_04
PC72
0.1u_16V_X7R_04
PC57 0.22u_16V_X7R_06
PR77
0_04
PC82
0.01u_50V_X7R_04
T24
PC8 220p_50V_NPO_04
PR1040_04
PR12
2K_1%_04
PR97 910_04
PR106*100_04
PR94
*100K_1%_04
PL4
CMME063T-R24MS1R197
12
PJ3
*CV-40mil
12
PR99
49.9_1%_04
PC9
0.1u_25V_X7R_06
PC107
10u_25V_X6S_08
+
PC96
*PSLB30E227M
*T55D107M025C0060
PC66
PC91
2200p_50V_X7R_04
PR67
2.2_04
PC56
4.7u_6.3V_X6S_06
PC10
0.1u_25V_X7R_06
PC65
10u_25V_X6S_08
PU3
NCP81303MNTXG
VSN
3
VSP
2
IOUT
4
DIFFOUT
5
FB
6
COMP
7
ILIM
8
CSCOMP
9
CSSUM
10
CSREF11CSP312CSP213ADD18ICCMAX19GND
20
BST1
21
HG1
22
SW1
23
VBOOT/SR
17
LG3
27
SW3
28
HG3
29
BST3
30
PWM2
31
VRMP
32
VCC
33
SDIO
35
ALERT#
36
SCLK
37
VR_HOT#
38
VR_RDY
39
EN
40
DRON16CSP114TSENSE
15
LG1
24
PVCC
25
PGND
26
PSYS
1
PAD
41
ROSC
34
PR78
53.6K_1%_04
PC102
*22u_6.3V_X5R_06
PC111
22u_6.3V_X5R_06
PC112
22u_6.3V_X5R_06
PR75
*20mil short-p
PR870_04
PC2
0.01u_50V_X7R_04
+
PC89
PSLB30E227M
+
PC106
2R0AVEC331M0545E09
PC100
22u_6.3V_X5R_06
PJ11
*CV-40mil
12
PR6
100_04
PR14
*75_04
PR18 10K_1%_04
PR351K_1%_04
G2
SW
G1
S2
D1
S1
PQ7
AOE6932
1
4
2
8
9
6
5
7
3
10
PC99
22u_6.3V_X6S_08
+
PC61
*25TQC15MYFB
PC7 820p_50V_X7R_04
PR25 220K_1%_04
PR109
*20mil short-p
PR103 30K_1%_04
PR13
118K_1%_04
PC104
0.01u_50V_X7R_04
PC115
*22u_6.3V_X5R_06
PC85
1000p_50V_X7R_04
PC101
*0.1u_16V_X7R_04
PR15
45.3_1%_04
PR790_04
PR8 120K_1%_06
PR860_04
PC109
10u_25V_X6S_08
PR98
2.2_04
PR92 10_04
PR108
*20mil short-p
Sheet 38 of 47
VCCIN
Schematic Diagrams
B.Schematic Diagrams
VCCIN B - 39
Schematic Diagrams
5
5
4
4
3
3
2
2
1
1
DD
CC
BB
AA
N350TW
non-VPRO
U53
6-03-00219-030
6-03-00219-031
Q370 MP
H370 MP
U40
I219LM MP
I219V MP
N350TV
VPRO
U55
U54
GIGA LAN (INTEL LAN I219)
6-03-00370-0F2
6-03-00370-0F0
SB
LAN
ME+Bios
W25Q128JVSIQ
6-04-25128-A74
MX25L25673GM2I-08G
6-04-XXXXX-XXX
N/A
LAN i219
The 10Kohm pull-up resistor of CLK_REQ_N is required
to either 3.3V Suspend (5, 6, 7) or Core (2) rail,
depending on the power well of PCH's input PCIECLKRQx#
buffer. See Platform Design Guide for more details
SMBUS PULL-UP OPTIONS
100KHz/400KHz2.2Kohm
SMBUS SPEED
1MHz(Defaul setting) 499ohm
NOTE: Default SMBus
Address is 0xC8
NOTE: LANWAKE_N must be
connected to PCH's GPIO27.
NOTE: LAN_DISABLE_N must be connected
to PCH's GPIO12/LAN_PHY_PWR_CTRL.
This GPIO12 pin must be set as
"LAN_PHY_PC" function through FITC
tool.
DESIGN NOTE: PCH's LANPHYPC output
does not require pull-up. Resistors are no-stuff (for testing
purpose only).
暣⭡ῤBY⮎㷔
DESIGN NOTE: C7 & C8 value may vary depending on the
actual Cstray of the board. Cstray is varied because
specific board stack-up, layout, etc. For examples:
Using Cload=18pF Crystal part, if Cstray=7pF then
C7=C8=22pF and if Cstray=6pF then C7=C8=24pF.
Cload=[(C7*C8)/(C7+C8)] + Cstray.
Each design should measure the crystal’ s ppm to make
sure it is within the I217 Specification.