HP OMEN 27c Manual

Maintenance and Service Guide
OMEN 27c 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: August 2021
Document Part Number:
M47894- OMEN 27c-MSG-V1
Assembly part number: M47894-001
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”.

3
Table of Contents
1. Getting started........................................................................................................................................................................... 4
Important safety information.............................................................................................................................................. 4
Important service information and precautions................................................................................................................ 5
RoHS (2002/95/EC) requirements.................................................................................................................................... 5
General descriptions........................................................................................................................................................... 6
Firmware updates ............................................................................................................................................................... 6
Before returning the repaired product to the customer.................................................................................................. 6
2. Monitor features......................................................................................................................................................................... 7
Features................................................................................................................................................................................ 7
Front View............................................................................................................................................................................. 8
Rear components................................................................................................................................................................ 9
Locating the serial number and product number.......................................................................................................... 10
3. Illustrated parts catalog.......................................................................................................................................................... 11
How to order parts............................................................................................................................................................. 12
4. Removal and replacement procedures................................................................................................................................ 13
Preparation for disassembly............................................................................................................................................ 13
Rear Cover......................................................................................................................................................................... 14
Connector repair................................................................................................................................................................ 16
HDMI Connector repair- J4 .................................................................................................................................. 18
DP Connector repair- J3....................................................................................................................................... 19
USB type C Connector repair-J13....................................................................................................................... 20
USB Type A Connector repair- J9, J10.............................................................................................................. 21
Function Test..................................................................................................................................................................... 22
Support and Troubleshooting.......................................................................................................................................... 23
Index ................................................................................................................................................................................... 24

4
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.

5
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 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.

6
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.

7
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
●Three-sided borderless 68.5 cm (27 in) curved monitor with 2560 × 1440 @
240 Hz (DP) or 144 Hz (HDMI) 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 vertical alignment (VA)
●Wide color gamut to provide coverage of DCI-P3 color spaces
●Antiglare panel with an LED backlight
●HP Eye Ease with Eye safe certification (default mode) to reduce blue light to
keep your eyes comfortable
●Wide viewing angle to allow viewing from a sitting or standing position, or
moving from side to side
●Height and tilt adjustment capability
●On-screen display (OSD) adjustments in several languages for easy setup and
screen optimization
●Color space presets for DCI-P3 (Gaming mode) and sRGB (Standard mode)
●Security cable slot on the rear of the monitor for an optional security cable
Connectors
●DisplayPort™ video input (cable included)
●High-Definition Multimedia Interface™ (HDMI) video input
●Audio-out (headphone) jack
●USB Type-C® port (data only)
●USB Type-A–to–USB Type-C cable and DisplayPort cable provided
●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, refer to the Product Notices provided
in your documentation kit. To access the latest user guide, go to
http://www.hp.com/support, and follow the instructions to find your product. Then
select Manuals.

8
Front View

9
Rear components
To identify the components on the rear of the monitor, use these illustration and table.
Table: Rear components and their descriptions
Component
Description
(1)
OSD controller
Opens the OSD menu and makes adjustment to
monitor settings.
(2)
Power button
Turns the monitor on or off.
(3)
Audio-out (headphone)
jack
Connects headphones or earbuds.
CAUTION: To reduce the risk of personal injury, adjust
the volume before using headphones or earbuds. For
additional safety information, see the Product Notices
provided in your documentation kit.
(4)
HDMI port
Connects the HDMI cable to a source device such as a
computer or game console.
(5)
DisplayPort connector
Connects the 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.
(8)
USB Type-C port
Connects a USB Type-C cable to a source device such
as a computer or game console.
This port only enables the USB Type-A ports to perform
their functions.
(9)
USB Type-A ports
Connects a USB cable to a peripheral device, such as a
keyboard, mouse, or USB flash drive.

10
Locating the serial number and product number
The SPEC label and Barcode label 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.
For worldwide models (except India):
Barcode label
Spec label
For India:
Bar code label
Spec label
SPEC LBL
BARCODE LBL

11
3.Illustrated parts catalog
To identify the monitor major components, use this illustration and table.
Table: Monitor major components and their descriptions
Item Description Qty
1
DECO
1
2 PANEL 1
3 MID FRAME 1
4 BTM SHD 1
5 CTRL BD 1
6 LED BD 1
7 RC OMEN 27C 1
8 Main BD 1
9 TOP SHD 1
10 RC BUCKET 1
11 HINGE 1
12
VESA COVER
1
13 STAND 1
2
3
10
9
8
7
4
5
1
11
6
12
13

12
How to order parts
Capacitors and connectors available for purchase from EU distributor
•Farnell: Farnell UK - Electronic Components Distributor
•RS Component: Capacitors | RS Components (rs-online.com)
Connectors by Distributor:
Component Description
Location
Identifier
Component
Distributor
Part number of
Manufacturer/ Distributor
HDMI J4
Farnell; RS
Molex 2086581001
DisplayPort (DP) J3
Farnell
Molex
47272-0001
USB Type C J13 Farnell
HIROSE(HRS) - CX90B1-
24P
USB Type A J9; J10
RS
Molex 48393
-0003
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.

13
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.
Use this information to properly prepare to disassemble and reassemble the monitor.
1) Clean the room for disassembly.
2) Identify the disassembly area.
3) 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.
4) Be sure to have the following equipment and materials:
•Press fixture
•Working table
•Screwdriver
•Knife
•Gloves
•Cleaning cloth
•ESD protection
•Curve sponge Jig- CS.5J5A5.001
During assembly and disassembly, please place curve sponge jig to avoid
damaging the panel.
Item Qisda P/N Description Photo
1 CS.4G5A5.001 SPONGE JIG OMEN
27c CURVE

14
Disassembly procedure
Rear Cover
S1
1) Disassemble Hinge Cover from the Hinge as the picture 1.
2) Unlock 6 screws and disassemble Hinge from the RC Cover as the picture 2.
3) Unlock 4 screws and disassemble RC Cover from the Top SHD as the picture 3.
PICTURE 1 PICTURE 2 PICTURE 3
S2
1) Tear off the wide and narrow conduct tapes from the Top SHD as the picture 1.
2) Unlock 4 screws and disassemble Top SHD from the Main BD as the picture 2.
3) Tear off LVDS, lamp wire and Ctrl BD cable from the Main BD as the picture 3.
4) Disassemble Main BD from the RC and disassemble RC from the monitor.
PICTURE 1 PICTURE 2 PICTURE 3
S3
1) Unlock 2 screws and disassemble Ctrl BD from the RC as the picture 1.
2) Disassemble LED BD from the RC as the picture 1.
3) Pull out the LED BD cable and Ctrl BD cable from the RC.
4) Pull out the LED BD from the Ctrl BD.
PICTURE 1
IF BD

15
S4
1) Unlock 11 screws from the MF as the picture 1.
2) Disassemble DECO from the monitor and disassemble MF from the Panel.
3) Tear off the acetate tapes and pull out the Lamp wire from the Panel as the picture 2.
4) Unlock 6 screws and disassemble Bottom SHD from the Panel as the picture 3.
5) Tear off the long acetate tape and pull out the LVDS from the Panel as the picture 4.
PICTURE 1
PICTURE 2 PICTURE 3 PICTURE 4

16
Connector repair
Repair Condition: Connector repair is only for the monitor that has been out
of warranty period.
•The repair procedure is for HDMI, DisplayPort, USB Type C and USB Type A
connectors.
•The connectors are on the main board (Main board part number
5E.5A501.001).
•Please refer to the location to repair the correct parts:
Connector
Location
HDMI
J4
DisplayPort (DP)
J3
USB Type C
J13
USB Type A
J9; J10
J4
J3
J13
J9
J10
Main Board

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IMPORTANT:
•Repair Condition: Connector repair is only for out of warranty.
•Repairing must operate by professional repairers (Note) in repair center,
not applicable for end user.
•Electrostatic protection is required when component replacement is
required.
•The monitor meets ROHS, please use Lead-free solder wire for soldering.
•If Connector need to replace, must check specification and part number
whether match the BOM and location.
•If connector need to replace, please insert new parts carefully because the
near pin may cause short circuit by inappropriate operate.
•DO NOT allow any liquid on the board. Water and moisture may cause
short-circuit to the electronic components and lead to malfunctions.
•The fusion point of Lead-Free solder is requested. Repairing with
conventional lead wire may cause damage.
•Work quickly to avoid overheating the circuit board as soon as you
confirm the steady soldering condition.
•Keep the soldering iron tip clean and well tinned and when replacing parts.
•A close inspection of the circuit board revealed look in good condition.
•After repaired, must connect source to each port to check Main board
function is ordinary.
Note: (The requirement of professional repairers’ regulation by ERP lot5)
(1) The professional repairer has the technical competence to repair electronic
displays and complies with the applicable regulations for repairers of electrical
equipment in the Member States where it operates. Reference to an official
registration system as professional repairer, where such system exists in the
Member States concerned, shall be accepted as proof of compliance with this
point.
(2) The professional repairer is covered by insurance covering liabilities resulting from
its activity, regardless of whether this is required by the Member State.

18
HDMI Connector repair- J4
1) Use a soldering iron and a de-soldering pump to remove as much solder as possible from
one of the pin.
2) Use a hot air gun to melt the solder on the pins
3). Lift J4 from the PCB
4). Place new component on the location, and must check it can match PCB footprint
5). Soldering the new component by solder iron

19
DP Connector repair- J3
1) Use a soldering iron and a de-soldering pump to remove as much solder as possible
from one of the pin.
2) Use a hot air gun to melt the solder on the pins
3) Lift J3 from the PCB
4) Place new component on the location, and must check it can match PCB footprint
5) Soldering the new component by solder iron

20
USB type C Connector repair-J13
1) Use a soldering iron and a de-soldering pump to remove as much solder as
possible from one of the pin.
2) Use a hot air gun to melt the solder on the pins
3) Lift connector from the PCB
4) Place new component on the location, and must check it can match PCB footprint
5) Soldering the new component by solder iron