HP OMEN 27i Manual

Maintenance and Service Guide
OMEN 27i 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 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: June. 2021
Document Part Number: L76944-OMEN
27I-MSG-V1
Assembly part number: L76944-001
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”.

iii
Table of Contents
1. Getting started .............................................................................................................................................. 1
Important safety information.................................................................................................................... 1
Important service information and precautions........................................................................................ 1
RoHS (2002/95/EC) requirements........................................................................................................... 2
General descriptions ............................................................................................................................... 2
Firmware updates.................................................................................................................................... 3
Before returning the repaired product to the customer ........................................................................... 3
2. Monitor features ............................................................................................................................................ 4
Features .................................................................................................................................................. 4
Front components.................................................................................................................................... 5
Rear components .................................................................................................................................... 6
Locating the serial number and product number..................................................................................... 8
3. Illustrated parts catalog.................................................................................................................................. 9
How to order parts ................................................................................................................................. 10
4. Removal and replacement procedures ....................................................................................................... 12
Preparation for disassembly.................................................................................................................. 12
RC ......................................................................................................................................................... 13
Connector repair.................................................................................................................................... 16
PHONE JACK M1.................................................................................................................................. 18
DC JACK M2 ......................................................................................................................................... 18
HDMI connector J2 ..................................................................................................................... 19
DP connector J3 ......................................................................................................................... 20
TYPE A J4,J5.............................................................................................................................. 21
TYPE B J6 .................................................................................................................................. 21
Function test .......................................................................................................................................... 22
Function test .......................................................................................................................................... 22
Support and troubleshooting ................................................................................................................. 22

1
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.

2
●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 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

3
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.

4
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:
68.47 cm (27 inch) diagonal viewable area with 2560 × 1440 QHD resolution
●Tilt and height-adjustment capabilities
●One DisplayPort 1.2 video input
●One High-Definition Multimedia Interface (HDMI) 2.0 video input
●Two USB 3.0 downstream ports
●One USB Type-B upstream port
●High-bandwidth Digital Content Protection (HDCP) used on all inputs
●Audio-out (headphone) jack
●HDMI, DisplayPort, and USB Type-A–to–USB Type-B cables included
●Plug and Play capability if supported by your operating system
●On-screen display (OSD) adjustments in 10 languages for easy setup and screen optimization
●Frames-per-second indicator displayed on the monitor screen, adjustable using the OSD menu
●Message timer displayed on the monitor screen, adjustable using the OSD menu
●Gaming crosshair displayed on the monitor screen, adjustable using the OSD menu
●Security cable slot on the rear of the monitor for an optional security cable
●User-configurable external lighting with full-range LEDs
●Convenient headphone storage hook on monitor stand
●VESA® mounting capability (100 ˟100 ms) for attaching the display to a swing arm mount
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.

5
Front components
To identify the components on the front of the monitor, use this illustration and table.
Press the power button on the rear of the monitor to turn it on.

6
Rear components
To identify the components on the rear of the monitor, use this illustration and table.
Table 1-1: Rear components and their descriptions
Component
Function
1
OSD joystick
Opens the OSD menu, selects an item from
the menu. or closes the OSD menu.
2
Power button
Turns the monitor on or off.
3
Audio-out (headphones) jack
Connects optional headphones.
4
HDMI port
Connects an HDMI cable to a source device
such as a computer or game console.
5.
DisplayPort connector
Connects a DisplayPort cable to a source
device such as a computer or game console
6
Power connector
Connects an AC adapter.
7
Security cable slot
connects an optional security cable to the
monitor.
8
USB SuperSpeed ports (downstream) (2)
Connect USB cables to a peripheral device,
such as a keyboard, mouse, or USB hard
drive.
9
USB Type-B port (upstream)
Connects the USB hub cable to a source

7
device such as a computer or game console.

8
Locating the serial number and product number
Depending on the product, the serial number and product number are located on a label on the rear of
the monitor or on a label under the front bezel of the monitor head. You might need these numbers when
contacting HP about the monitor.
For worldwide models (except India):
Barcode label and spec label
For India:

9
3. Illustrated parts catalog
To identify the monitor major components, use this illustration and table.
item
part name
q'ty
1
DECO plate
1
2
DECO PLASTIC
1
3
POWER LED LENS
1
4
PANEL
1
5
MIDDLE FRAME
1
6
POWER LED BOARD
1
7
HINGE BKT
1
8
IO ESD FINGER
1
9
USB ESD FINGER
1
10
AMB BTM LED BOARD
1
11
FUNCTION KEY BOARD
1
12
FUNCTION KEY
1
13
POWER KEY
1
14
REAR COVER
1
15
HP LOGO
1
16
AMB BTM LED LENS
1
17
BTM REFELCTOR
4

10
How to order parts
The HP authorized repair center can purchase the adaptor from HP.
Power board
Description
HP spare part number
Manufacturer part number
OMEN 27i
L39754-003
F80GLA19567DE1
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)
DK : https://www.digikey.com/
Capacitors by distributor
Component
description
Location
Component
distributor
Distributor part
number
NA
NA
NA
NA
Connectors by manufacturer
Component
description
Location identifier
Component distributor
Distributer part
number
HDMI
J2
DK
SAM14939TR-ND
SAM14939CT-ND
SAM14939DKR-ND
(HDMR-19-02-S-SM-
TR)
18
AMB REAR LED LENS
1
19
AMB REAR LED BOARD
4
20
TOP REFLECTOR
4
21
SCALER BOARD
1
22
MAINFRAME
1
23
BUCKET
1
24
POWERLENS
1
25
VESA COVER
1
26
HINGE
1
27
STAND
1
S1
SCREW M3 L4
13
S2
SCREW M3 L5
10
S3
SCREW Q3 L6
2
S4
SCREW M4 L10
14
S5
SCREW M4 L8
6

11
Display Port
J3
DK
WM19271TR-ND
WM19271CT-ND
WM19271DKR-ND
(0472720001)
PHONE JACK
M1
DK
839-54-00175TR-ND
839-54-00175CT-ND
839-54-00175DKR-ND
（54-00175）
DC JACK
M2
DK
102-5565-2-ND
102-5565-1-ND
（PJ-098H）
TYPE A
J4
DK
2092-KUSBX-AS1N9-1-
BL30-ND
（KUSBX-AS1N9-1-
BL30）
TYPE A
J5
DK
2092-KUSBX-AS1N9-1-
BL30-ND
（KUSBX-AS1N9-1-
BL30）
TYPE B
J6
DK
732-3158-ND
（692221030100）
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.
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.

12
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:

13
RC
Before removing the RC, follow these steps:
▲Prepare the monitor for disassembly. See Preparation for disassembly on page 12.
Remove the RC:
Step
Figure
Description
Unplug the
cable by
hand.
Remove the
HINGE ASS'Y
Remove the
screws by the
hex
Screwdriver
first and then
remove the
hinge assy
Remove the stand
cover
remove the
stand cover
by the
Scraper.

14
Remove the
BACK_COVER
Remove the
screws by the
Screwdriver
first,
Remove the
mainframe
and then
remove the
BACK COVER
by the
Scraper
disconnect
the
connectors by
hand and use
screw driver
to
remove the
other boards.