HP E24 G5 Manual

Maintenance and Service Guide
E24 G5 model
Applicable to SN: CN4XXXXXXX
SUMMARY
This guide provides information about spare parts, removal and replacement of parts, diagnostic tests, problem
troubleshooting, and more.

© Copyright 2021 HP Development
Company, L.P.
AMD is a trademark of Advanced Micro
Devices, Inc. Bluetooth is a trademark owned
by its proprietor and used by HP Inc. under
license. NVIDIA is a trademark and/or
registered trademark of NVIDIA Corporation
in the U.S. and other countries. USB Type-C
and USB-C are registered trademarks of USB
Implementers Forum. DisplayPort and the
DisplayPort logo are trademarks owned by
the Video Electronics Standards Association
(VESA) in the United States and other
countries.
The information contained herein is subject
to change without notice. The only
warranties for HP products and services are
set forth in the express warranty statements
accompanying such products and services.
Nothing herein should be construed as
constituting an additional warranty. HP shall
not be liable for technical or editorial errors
or omissions contained herein.
First Edition: November 2022
Document Part Number: N22864-101-E24
G5-MSG-V1
Assembly part number: N22864-101
Product notice
Only trained service personnel familiar with
this product should service it. Before
performing any maintenance or service, be
sure to read “Important Safety Information”.

iii
Table of Contents
1Getting started ............................................................................................................................................................. 1
Important safety information................................................................................................................................ 1
Important service information and precautions .................................................................................................... 1
RoHS (2002/95/EC) requirements.......................................................................................................................... 2
General descriptions .............................................................................................................................................. 2
Firmware updates .................................................................................................................................................. 2
Before returning the repaired product to the customer ....................................................................................... 2
2Monitor features........................................................................................................................................................... 3
Features ................................................................................................................................................................. 3
Front components.................................................................................................................................................. 4
Rear and side components..................................................................................................................................... 5
Locating the serial number and product number .................................................................................................. 6
3Illustrated parts catalog .............................................................................................................................................. 7
How to order parts ................................................................................................................................................. 7
4Removal and replacement procedures...................................................................................................................... 10
Preparation for disassembly................................................................................................................................ 10
Rear Cover ............................................................................................................................................................ 10
Power board......................................................................................................................................................... 13
Connector repair .................................................................................................................................................. 14
DP connector DP1..................................................................................................................................... 15
HDMI connector HDMI1............................................................................................................................. 15
USB-B connector USB1 ............................................................................................................................. 16
USB-A connector USB2/USB3 ................................................................................................................... 16
USB-A connector USB4/USB5 ................................................................................................................... 17
Function test ........................................................................................................................................................ 17
Support and troubleshooting .............................................................................................................................. 17
Index..................................................................................................................................................................... 19

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1Getting started
Read this chapter to learn about safety information and where to find additional HP resources.
Important safety information
Carefully read the cautions and notes within this document to minimize the risk of personal injury to service
personnel. The cautions and notes are not exhaustive. Proper service methods are important to the safe, reliable
operation of equipment. Improper service methods can damage equipment.
The service procedures recommended and described in this service manual provide effective methods of
performing service operations. Service engineers should have prior repair knowledge and experience as well as
appropriate training for the product before performing service procedures.
●Be sure your working environment is dry and clean and meets all government safety requirements.
●Be sure that other persons are safe while you are servicing the product.
●Do not perform any action that can cause a hazard to the customer or make the product unsafe.
●Use proper safety devices to ensure your personal safety.
●Always use approved tools and test equipment for servicing.
●Never assume the product’s power is disconnected from the main power supply. Check that it is
disconnected before opening the product’s cabinet.
●Modules containing electrical components are sensitive to electrostatic discharge (ESD). Follow ESD
safety procedures while handling these parts.
●Some products contain more than one battery. Do not disassemble or expose a battery to high
temperatures, such as throwing into fire, or the battery may explode.
●Refer to government requirements for battery recycling or disposal.
This information provides general service information for the monitor. Adherence to the procedures and
precautions is essential for proper service.
IMPORTANT: Only trained service personnel who are familiar with this HP product should perform service or
maintenance for it. Before performing any service or maintenance, personnel must read the important safety
information.
IMPORTANT: You must disconnect the power cord from the power source before opening the monitor to
prevent component damage.
Important service information and precautions
●Repair must be performed by professional service technicians in a repair center. End users should not
perform these procedures.
●Please note during servicing that the primary side is the high voltage area.
●This monitor meets ROHS requirements. Be sure to use lead-free solder wire when soldering.
●If you must change a capacitor, be sure to match the polarity as printed on the PCB.
●If you must replace a capacitor, make sure the specification and part number match the BOM and

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location.
●If you must replace a capacitor, insert new parts carefully to avoid a short circuit caused by the near
pin.
●Do not get the board wet. Water and moisture can cause a short circuit that causes malfunctions.
●To avoid damage, be sure to use lead-free solder.
●When soldering, work quickly to avoid overheating the circuit board.
●Keep the soldering iron tip clean and well tinned when replacing parts.
●After repair, perform a close inspection of the circuit board to confirm it is in good condition.
●After repair, perform a function test to confirm the power supply is working properly.
ERP Lot5 requirement
1. A professional repairer must have the technical competence to repair electronic displays and comply with
the applicable regulations for repairers of electrical equipment in the Member States where the repairer
operates. Reference to an official registration system as professional repairer, where such a system exists
in the Member States, shall be accepted as proof of compliance.
2. A professional repairer must have insurance that covers liabilities resulting from repairs, regardless of
whether required by the Member State.
RoHS (2002/95/EC) requirements
Applied to all countries that require RoHS.
The RoHS (Restriction of Hazardous Substance in Electrical and Electronic Equipment Directive) is a legal
requirement by the EU (European Union) for the global electronics industry sold in the EU and other countries.
Any electrical and electronics products launched in the market after June 2006 should meet this RoHS
requirement. Products launched in the market before June 2006 are not required to be compliant with RoHS
parts. If the original parts are not RoHS complaint, the replacement parts can be non-ROHS complaint. If the
original parts are RoHS compliant, the replacement parts MUST be RoHS complaint.
If product service or maintenance requires replacing parts, confirm the RoHS requirement before replacement.
General descriptions
This manual contains general information. There are two levels of service:
Level 1: Cosmetic/appearance/alignment service
Level 2: Circuit board or standard parts replacement
Firmware updates
Firmware updates for the monitor are available at support.hp.com. If no firmware is posted, the monitor does
not need a firmware update.
Before returning the repaired product to the customer
Perform an AC leakage current check on exposed metallic parts to be sure the product is safe to operate
without the potential of electrical shock. Do not use a line isolation transformer during this check.
Measurements that are not within specified limits present a possible shock hazard. You must check and repair
the product before returning it to the customer.

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2Monitor features
This chapter provides an overview of the monitor’s features.
Features
Display features
●54.60 cm (21.5 in), 60.50 cm (23.8 in), plus full-screen support for lower resolutions; includes
custom scaling for maximum image size while preserving original aspect ratio
●True 8 bit (QHD only)
●sRGB 99%
●Anti-glare panel with an LED backligh
●Touch screen capability (select product only)
●Ergonomic monitor setup guide (via the HP Display Center software) during first time use
●Tilt, swivel, height-adjustable, and pivot capabilities
●On-screen display (OSD) adjustments in several languages for easy setup and screen optimization
●Joypad OSD navigation
●Energy saver feature to meet requirements for reduced power consumption
●HP Eye Ease (TUV Low Blue Light Hardware Solution certified and 75 Hz Max Refresh rate)
●Compatible with displays software including:
-HP Display Center
-HP Display Manager
●Secure firmware updates with HP Display Center
●Security cable slot on the rear of the monitor for an optional security cable
●Cable management feature for placement of cables and cords
Connectors
●DisplayPort™ video input
●High-Definition Multimedia Interface® (HDMI®) video input
●USB Type-B port
●USB Type-A port
●Plug and Play capability, if supported by your operating system
Monitor stand
●Removable stand for flexible monitor head mounting solutions
●VESA® mounting capability (100 × 100 mm) for attaching the monitor to a swing arm mount
NOTE: For safety and regulatory information, see Legislation and regulations on page 39. To access the
latest user guide, go to http://www.hp.com/support, and follow the instructions to find your product. Then
select Manuals..

4
Front components
To identify the components on the front of the monitor, use this illustration and table
Table 2-1 Front components and their descriptions
Component
Description
(1)
Power button
Turns the monitor on or off.
(2)
Power LED
Indicates that the monitor is powered on.

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Rear and side components
To identify the components on the rear of the monitor, use this illustration and table.
Table 2-2 Rear and side components and their descriptions
Component
Description
(1)
Joypad
Press to open the OSD settings.
(2)
Security cable slot
Connects an optional security cable.
(3)
Power connector
Connects a power cord.
(4)
DisplayPort connector
Connects a DisplayPort cable to a source device such as a
computer or game console.
(5)
HDMI port
Connects the HDMI cable to a source device such as a computer or game
console.
(6)
USB Type-B port
Connects a USB Type-B to A cable.
NOTE: The USB hub is enabled only if the monitor is connected to the
computer via a USB Type-B to A cable.
NOTE: The touch screen function (select products only) is enabled only if
the monitor is connected to the computer via a USB Type-B to A cable.
(7)
USB Type-A ports (2)
Connects a USB device, provides data transfer, and (for select
products) charges small devices (such as a smartphone) when the
computer is on or in Sleep mode.
NOTE: Use a standard USB Type-A charging cable or cable adapter
(purchased separately) when charging a small external device.
(8)
USB Type-A port (1), USB
Type-A port with battery
fast charging 1.2 (1)
USB port: Connects a USB device, provides data transfer, and (for
select products) charges small devices (such as a smartphone) when
the computer is on or in Sleep mode.
USB port with battery fast charging: Connects a USB device, provides
high-speed data transfer, and charges small devices (such as a
smartphone), even when the monitor is DC off with OSD performance
mode on.
NOTE: Use a standard USB Type-A charging cable or cable adapter
(purchased separately) when charging a small external device.

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Locating the serial number and product number
The Spec label (1) and Barcode label (2) are located on the rear of the monitor. The serial number and product
number are located on a Barcode label. You may need these numbers when contacting HP about the monitor
model.
Spec label (ww & India):
Barcode label (ww & India):

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3Illustrated parts catalog
To identify the monitor major components, use this illustration and table.
Table 3-1: Monitor major components and their descriptions
Item
Description
Part number
Qty
1
#ASSY Panel E24 G5
1
2
#Lens E24 G5
1
3
#Power key E24 G5
1
4
#Bezel Logo E24 G5
1
5
#Mid frame Assy E24 G5
1
6
#ASSY Power BD E24 G5
1
7
#ASSY IF BD E24 G5
1
8
#Main Chassis E24 G5
1
9
#Assy Speaker E24 G5
1
10
#Rear cover Assy E24 G5
1
11
#Wall mount screw E24 G5
4
12
#VESA cover E24 G5
1
13
#ASSY Stand E24 G5
1
How to order parts
The HP authorized repair center can purchase the power board from HP.

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Power board
Description
HP spare part
number
Manufacturer part
number
POWER BD RE238HC-WUL-HU01(C) E24 G5 LGD/AUO
N40921-001
755.09Q02.0001
POWER BD RE238HC-WUL-HU01(C) E24 G5 HKC/BOE
N40922-001
755.09Q02.0002
POWER BD RE238HC-WUL-HU01(C) E24 G5 INX
N40923-001
755.09Q02.0003
Capacitors and connectors are available for purchase from the following EU distributors:
SUSCON : www.su-scon.com
CAPXON: www.capxongroup.com
Capacitors by distributor
Component description
Location
Component distributor
Distributor part number
CAP EL 100U 450V M P7.5
16*45 R CAPXON
PT501
CAPXON
009.1071M.0191
CAP EL 100U 450V M P7.5
16*45 R HE
SUSCON
009.1071M.009
CAP EL 100U M 450V SE RT7.5
16*40
SUSCON
009.1071M.0021
CAP EL 100U 450V M RT7.5
16*40 KL
CAPXON
009.1071M.0321
Connectors by manufacturer
Component
description
Location
identifier
Component
distributor
Distributer part number
Remark
DP
DP1
XIANHE
https://www.digikey.com
PN:
35420FKSLN1D4HF
Cut off the through hole
HDMI
HDMI1
TCONN
https://www.digikey.com
PN:
T13-0002-2A30
USB-B
USB1
XIANHE
https://www.digikey.com
PN:
601ASPCEHF
Cut off the Pin as below

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USB-A
USB2
USB3
XIANHE
https://www.digikey.com
PN:
601ASPBKHF
Cut off the Pin as below
USB-A
USB4
USB5
XIANHE
https://www.digikey.com
PN:
601ASPL3HF
Cut off the Pin as below
NOTE: The connector may need to be modified to meet functionality, regulatory and safety requirements if
it is not an exact match.
You can purchase cables from the HP part store at https://partsurfer.hp.com/Search.aspx.
NOTE: HP continually improves and changes product parts. For complete and current information about
supported parts for your computer, go to http://partsurfer.com, select your country or region, and then
follow the on-screen instructions.
Internal and External Power Supplies are available for purchase from the following EU distributor: EET
https://www.eetgroup.com/en-eu/

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4Removal and replacement procedures
Adherence to these procedures and precautions is essential for proper service.
Preparation for disassembly
Use this information to properly prepare to disassemble and reassemble the monitor.
1) Read the “Important safety information” and “Important service information and precautions” sections in
the “Getting started” chapter of this guide.
2) Clean the room for disassembly.
3) Identify the disassembly area.
4) Check the position that the monitors are to be placed along with the number of monitors. Prepare the area
for material flow according to the disassembly layout.
5) Be sure to have the following equipment and materials:
Press fixture
Working table
Screwdriver
Knife
Gloves
Cleaning cloth
ESD protection
Scraper bar in the following dimensions:
Rear Cover
Before removing the Rear Cover, follow these steps:
▲Prepare the monitor for disassembly. See Preparation for disassembly on page 10.
1) Pull the release button to remove Stand Base From Display Head

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2) Use tool to remove 4pcs screws, then remove VESA cover and Hinge Assy from Display Head.
3) Disconnect the cables and remove the rear cover from the display head.
4) Remove 2pcs screws to release the USB BD. Remove 2pcs screw to release OSD BD
5) Remove all tape and disconnect all cables, then remove the main chassis from the panel..

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6) Remove all the screws to release the middle frame away from the panel module.
7) Remove the safety Mylar, then release the 5pcs screws from the interface BD and power BD
8) Remove 2pcs screws to release AC outlet, then remove the power board and interface board from chassis.

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Power board
The power board part number is 755.09Q02.0001.
Before removing the power board, follow these steps:
▲Prepare the monitor for disassembly. See Preparation for disassembly on page 10.
Remove the power board:
1) The HP E24 G5 power board connector position is as follows:
CN801 Wistron P/N: 021.61323.0106
2) Locate the part number location on the board.
3) Pin solder with soldering iron and absorber.
CN801

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4) Lift the connector up and away from the PCB.
CN801
Connector repair
This procedure includes Display Port, HDMI, USB-B and USB-A connectors.
The connectors are on the main board (board part number 7ZB.09Q01.0018).
The connector identifiers are as follows:
Connector
Location
DP
DP1
HDMI
HDMI1
USB-B
USB1
USB-A
USB2, USB3
USB-A
USB4, USB5
Before repairing connectors, follow these steps:
▲Prepare the monitor for disassembly. See Preparation for disassembly on page 10.

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DP connector DP1
Repair the DP connector:
1) Use a soldering iron and a de-soldering pump to remove as much solder as possible from the pin.
2) Use a hot air gun to melt the solder on the pins
3) Lift the DP connector from the PCB.
4) Place the new component on the PCB. Be sure that it matches the PCB footprint.
5) Solder the new component.
HDMI connector HDMI1
Repair the HDMI connector:
1) Use a soldering iron to remove as much solder as possible from the pin.
2) Use a hot air gun to melt the solder on the pins.

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3) Lift the HDMI connector from the PCB.
4) Place the new component on the PCB. Be sure that it matches the PCB footprint.
5) Solder the new component.
USB-B connector USB1
Repair the USB-B connector:
1) Use a soldering iron to remove as much solder as possible from the pin.
2) Lift the USB-B connector from the PCB.
3) Place the new component on the PCB. Be sure that it matches the PCB footprint.
4) Solder the new component
USB-A connector USB2/USB3
Repair the USB-A connector:
1) Use a hot air gun to melt the solder on the pins. Pin solder with soldering iron and absorber. You can gently
push down with the soldering iron once everything is molten to move USB-A connector out of the through
holes

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2) Lift the USB-A connector from the PCB.
3) Place the new component on the PCB. Be sure that it matches the PCB footprint.
4) Solder the new component.
USB-A connector USB4/USB5
Repair the USB-A connector:
1) Use a hot air gun to melt the solder on the pins. Pin solder with soldering iron and absorber. You can gently
push down with the soldering iron once everything is molten to move USB-A connector out of the through
holes.
2) Lift the USB-A connector from the PCB.
3) Place the new component on the PCB. Be sure that it matches the PCB footprint.
4) Solder the new component.
Function test
After repair, be sure to confirm that all functions are working.
Table 4-1: Function test
Test item
Operating description
Tool used
HDMI test
Confirm whether image displays
Computer or DVD player
DP test
Confirm whether image displays
Computer or DVD player
USB Hub Test
Confirm USB function of 4-USB Type-A working
normally.
Computer or Notebook
Support and troubleshooting
The following table lists possible problems, the possible cause or each problem, and the recommended
solutions.