HP E24mv G4 Manual

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Maintenance and Service Guide
E24mv G4 model
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 ofUSB
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: Dec. 2021
Document Part Number: M10759-E24mv
G4-MSG-V1
Assembly part number: M10759-001
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”.

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Table of Contents
1Getting started .............................................................................................................................................. 2
Important safety information.................................................................................................................... 2
Important service information and precautions ........................................................................................ 2
RoHS (2002/95/EC) requirements........................................................................................................... 3
General descriptions ............................................................................................................................... 3
Firmware updates.................................................................................................................................... 3
Before returning the repaired product to the customer ........................................................................... 3
2Monitor features ............................................................................................................................................ 4
Features .................................................................................................................................................. 4
Front components.................................................................................................................................... 6
Rear components .................................................................................................................................... 7
Locating the serial number and product number..................................................................................... 9
3Illustrated parts catalog............................................................................................................................... 10
How to order parts................................................................................................................................. 11
4Removal and replacement procedures ....................................................................................................... 13
Preparation for disassembly.................................................................................................................. 13
Rear Cover ............................................................................................................................................ 13
Power board .......................................................................................................................................... 17
Connector repair.................................................................................................................................... 18
DP connector CN501 .................................................................................................................. 20
HDMI connector CN502.............................................................................................................. 20
D-SUB connector CN101............................................................................................................ 21
USB 3.0 B connector CN106 ...................................................................................................... 22
USB 3.0 A connector CN103 ...................................................................................................... 22
USB 3.0A connector CN1032/CN1033....................................................................................... 23
Audio connector CN610.............................................................................................................. 24
Function test .......................................................................................................................................... 25
Support and troubleshooting ................................................................................................................. 25
Index...................................................................................................................................................... 27

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1 Getting 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 location.
●If you must replace a capacitor, insert new parts carefully to avoid a short circuit caused by

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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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2 Monitor features
This chapter provides an overview of the monitor’s features.
Features
Depending on the model, your monitor might include the following features:
Display features
●
60 cm (23.8 in) diagonal viewable screen area with 1920 × 1080 @ 60 hz resolution, plus full-screen
support for lower resolutions; includes custom scaling for maximum image size while preserving original
aspect ratio
● Liquid crystal display (LCD) with active matrix and in-plane switching (IPS)
●Wide color gamut to provide coverage of NTSC color spaces
●Nonglare panel with an LED backlight
●Wide viewing angle to allow viewing from a sitting or standing position, or moving from side to side
●
Tilt, swivel, and height adjustment capabilities
●Pivot capability to rotate the monitor head from landscape to portrait orientation
●Menu button and three on-screen display (OSD) buttons, three that you can reconfigure to quickly allow
selection of the most commonly used operations
●
On-screen display (OSD) adjustments in several languages for easy setup and screen optimization
● Color space presets for NTSC
●Energy saver feature to meet requirements for reduced power consumption
●
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 (cable included)
●High-Definition Multimedia Interface™ (HDMI) video input (cable included)
●Audio-out (headphone)/Audio-in (microphone) combo jack
●USB hub with one USB Type-B port that connects to the computer (upstream) and four USB ports that
connect to USB devices (downstream)
●VGA port
●
USB Type-A ports
● USB Type-B port
●Plug and Play capability, if supported by your operating system
Monitor stand
●Removable stand for flexible monitor head mounting solutions
●HP Quick Release 2 device to quickly attach the monitor head to the stand with a simple click, and then

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remove it with the convenient sliding tab release
●VESA® mounting bracket for attaching the monitor head to a wall-mount device or swing arm
●
VESA mounting capability (100 × 100 mm) for attaching the monitor to a swing arm mount
●Support for a mounting bracket to attach the monitor to a workstation
NOTE: For safety and regulatory information, refer to the Product Notices provided in your documentation kit.
To access the latest user guides or manuals for your product, go to http://www.hp.com/support and follow the
instructions to find your product. Then select Manuals.

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Front components
To identify the components on the front of the monitor, use this illustration and table.
Table 1-1: Front components and their descriptions
Component Description
(1)
Tilt levers Allows you to tilt the camera,
(2) Camera microphones Allow you to participate in a video conference.
(3)
Camera light On: The camera is in use.
(4) Camera RGB lens Transmits your image in a video conference.
(5)
Camera IR lens Transmits your image in a video conference.
(6)
Speaker mute light The mute button has been turned on.
(7) Speaker mute button Mutes or restores speaker sound.
(8) Speaker button (decrease sound) Decreases speaker volume incrementally while you hold down the key.
(9) Speaker button (increase sound) Increases speaker volume incrementally while you hold down the key.
(10) Microphone button Turns on the microphone feature.
(11) Microphone mute light The mute button has been turned on.
(12)
Power light White: The monitor is on.
Amber: The monitor is in a reduced power state because of inactivity.
Blinking ambe: power state because of an Energy
Saver setting.

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Rear components
To identify the components on the rear of the monitor, use this illustration and table.
Table 1-2: Rear components and their descriptions
Component
Description
(1)
A
udio-out (headphone)/Audio-
i
n (microphone) combo jack
Connects optional powered stereo speakers, headphones, earbuds, a headset, or a
television audio cable. Also connects an optional headset microphone. This jack does
not support optional standalone microphones.
IMPORTANT: To reduce the risk of personal injury, adjust the volume before putting on
headphones, earbuds, or a headset. For additional safety information, see the Regulatory,
Safety, and Environmental Notices
To access this guide, type HP Documentation in the taskbar search box, and then
selectHP Documentation.
NOTE: When a device is connected to the jack, the speakers are disabled.
(2)
P
owe
r
button Turns the monitor on or off.
(3)
O
SD buttons
(
assignable)
When the OSD menu is open, press the buttons to navigate through the menu. The
function light icons indicate the default button functions. For a description of these
functions, see Using the OSD function buttons on page 19.
You can reassign the function buttons to quickly select the most commonly used
operations. See Reassigning the function buttons on page 20.
(4)
M
enu button Press to open the OSD menu.
(5)
S
ecurity cable slot Connects an optional security cable.
(6)
P
owe
r
connector Connects an AC adapter.
(7)
D
isplayPort connector Connects the DisplayPort cable to a source device such as a computer or game console.
(8)
H
DMI port Connects the HDMI cable to a source device such as a computer or game console.
(9)
V
GA port Connects the VGA cable to the source device.
(10)
U
SB Type-B port (upstream) Connects the USB Type-B cable to a source device such as a computer or game console.
NOTE: A USB Type-B cable must be conn e device to the monitor to enable
USB Type-A ports on the monitor.
(11)
U
SB ports (2) Connect a USB cable to a peripheral device, such as a keyboard, mouse, or
USB hard drive, and charge peripheral devices.

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Component Description
(12)
U
SB port with HP Sleep and
C
harge
Connects a USB device, provides high-speed data transfer, and charges small
devices such as a smartphone, even when the computer is off with OSD
Performance mode on.
(13)
U
SB port Connects a USB cable to a peripheral device, such as a keyboard, mouse, or
USB hard drive, and charges peripheral devices.

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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 Safety label. You may need these numbers when contacting HP about
the monitor model.
Barcode label
Spec label

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3 Illustrated parts catalog
To identify the monitor major components, use this illustration and table.
7
8
9
10
11
12
13
14
S6
S5
S5
S6
S6
S6
S6
S6
1
3
4
5
6
18
19
S1
S1
S1
S1
S1
S1
S1
S1
S1
S1
S1
S2
S2
S2
S2
S2
S2
S3
S4
S4
S4
S4
21
20
2
22
16
17
23
15
Item Description Qty
1 DECO_BEZEL NA 1
2 LENS_POWER 3
3 MIDDLE_FRAME 1
4 INSULATING SHEET 1
5 INSULATING SHEET 1
6 MAINFRAME 1
7 REAR_COVER 1
8 SHIELD_USB 1
9 KEY_FUNCTION 1
10 KEY_POWER 1
11 SHIELD_AUDIO 1

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How to order parts
The HP authorized repair center can purchase the power board from HP.
Power board
Description HP spare part number Manufacturer part number
PSU E24mv G4 1st Source N12314-001 PLPCKE421GQA2
PSU E24mv G4 2nd Source N12314-002 PLPCKE481AQA1
PSU E24mv G4 3rd Source N12314-003 PLPCLE481AQA3
Capacitors and connectors are available for purchase from the following EU distributors:
Farnell: Farnell UK - Electronic Components Distributor
RS Component: Capacitors | RS Components (rs-online.com)
tme Component: Transfer Multisort Elektronik
Digi-Key: Digikey Electronics
Capacitors by distributor
Component description Location Component
distributor Distributor part number
EC 470U 20% 25V 10*12mm
10000 hr -- RF1E
C904 RS 25ZLJ470M10X12.5
EC 470uF 20% 25V 10x12mm C906/C914/C916 Digi-Key 25YXG470MEFC10X12.5
12 Latch 1
13 SPRING 2
14 SHIELD_PLATE 1
15 HINGE ASS'Y 1
16 HINGE ASS'Y 1
17 HINGE ASS'Y 1
18 LOGO HP 56 1
19 stand ass'y 1
20 BASE_ASS’Y 1
21 LOGO HP 12 1
22 FILM 1
23 HINGE ASS'Y 1
S1 SCREW M3 3(MIDDLE FRAME/PANEL) 13
S2 SCREW D3 6(MAIN BOARD/POWER BOARD/MAINFRAME) 7
S3 SCREW -- 6mm(POWER BOARD/MAINFRAME) 1
S4 SCREW -- 10(REAR COVER/MAINFRAME) 4
S5 SCREW 5(Latch/REAR COVER) 2
S6 SCREW 5(KEY BOARD/REAR COVER) 6

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5000 hr 1.7A EV
Connectors by manufacturer
Component
description
Location
identifier
Component
distributor Distributer part number
DisplayPort CN501 Farnell DP1RD20JQ1R400
HDMI CN502 RS SD-47151-001(Molex)
D-SUB CN101 tme HDL15-SL-B(ADAM TECH)
USB 3.0 CN106 RS 692221030100 (Wurth
Elektronik）
USB 3.0 CN103 Farnell 48406-0001（MOLEX）
USB 3.0 CN1032/CN1033 RS SD-48394-001（MOLEX）
NOTE: Rear cover and chassis need to be modified to hold connector. Connector may need
modifications to meet functional, safety and regulatory requirements accordingly if it doesn’t match
exactly.
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.
Internal and External Power Supplies are available for purchase from the following EU distributor: EET
https://www.eetgroup.com/en-eu/
NOTE: HP continually improves and changes product parts. For complete and current information
about supported parts for your product, go to https://partsurfer.hp.com/Search.aspx, select your
country or region, and then follow the on-screen instructions.

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4 Removal 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 13.
Remove the Rear Cover:

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1) Remove four screw from the rear case.
2) Use your fingers to split the left and right sides apart between the middle frame and rear case.
3) Insert the scraper bar tool into the gap between the middle frame and rear case, and then rotate.
The hook opens. Repeat the steps.
4) Disassemble the Rear Cover.

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5) Disassemble the Speakers.
6) Remove the Webcam module, Key board, Audio Board, Connect board wire and USB board wire
from the Rear Cover.

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7) Remove 2 screws from the bracket.
8) Disassemble 8 screws from the boards.
9) Disassemble all the boards from housing.
10) Disconnect all the wires from the board.

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Power board
The power board part number is PLPCKE421GQA2 (1st Source) or
PLPCKE481AQA1 (2nd Source) and PLPCLE481AQA3 (3rd Source).
Before removing the power board, follow these steps:
▲Prepare the monitor for disassembly. See Preparation for disassembly on page 13.
Remove the power board:
1) The HP E24mv G4 power board connector position is as follows:
2) Locate the part number location on the board.
Warning: After unplugging the
power supply, the capacitance
is still charged, do not touch
and discharge the capacitor.

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Connector repair
This procedure includes DisplayPort, HDMI, D-SUB and USB 3.0 connectors.
The connectors are on the main board (board part number CBPRNA6HPQ6).
The connectors identifiers are as follows:
Connector Location
DisplayPort CN501
HDMI CN502
D-SUB CN101
USB 3.0 CN106
USB 3.0 CN103
This procedure includes USB 3.0 connectors.
The connectors are on the USB board (board part number USBPQA2).
The connectors identifiers are as follows:
Connector Location
USB 3.0 CN1032/CN1033
Main Board
CN106
CN101
CN502
CN501 CN103