HP Z27u G3 QHD Display Maintenance and Service Guide
Summary
Optimize your repair workflow with this professional service manual for the Z27u G3 monitor. Designed exclusively for trained technical personnel, this guide is an essential resource covering fundamental maintenance and service procedures. It provides detailed step-by-step instructions for component removal and replacement—including power boards and key connectors—and offers comprehensive sections on diagnostics and troubleshooting common operational issues. Includes a full illustrated parts catalog and critical safety precautions to ensure expert repair quality.
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Maintenance and Service Guide Z27u G3 model
SUMMARY This guide provides information about spare parts, removal and replacement of parts, diagnostic tests, problem troubleshooting, and more.
Page Summary Contents For HP Z27u G3 QHD Display Maintenance and Service Guide
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Maintenance and Service Guide Z27u G3 model SUMMARY This guide provides information about spare parts, removal and replacement of parts, diagnostic tests, problem troubleshooting, and more.
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Product notice Copyright 2021 HP Development Company, L.P. Only trained service personnel familiar with this product should service it. Before AMD is a trademark of Advanced Micro performing any maint...
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Table of Contents 1 Getting started ............................................................................................................................................................. 1 Impo...
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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...
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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 c...
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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 ● 68.6 cm (27 in) d...
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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 remove it with th...
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Front components To identify the components on the front of the monitor, use this illustration and table.
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Rear and side components To identify the components on the rear of the monitor, use this illustration and table. Table 2-1 Rear and side components and their descriptions Component Description (1) OSD...
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(12) USB port Connects a USB cable to a peripheral device, such as a keyboard, mouse, or USB hard drive. (13) USB port Connects a USB cable to a peripheral device, such as a keyboard, mouse, or USB ha...
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Locating the serial number and product number The serial number and product number are located on the rear of the monitor. You may need these numbers when contacting HP about the monitor model. For wo...
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3 Illustrated parts catalog To identify the monitor major components, use this illustration and table. Table 3-1: Monitor major components and their descriptions Item Description Qty 1 # ASSY Panel Z2...
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3 #Screw Cap Head M4*8 1 4 #Mylar Power Z27u G3 1 5 #Screw Tapping Water M3*8.0 White 2 6 # Screw MAC TRU M3*0.5*L3.0 Ni 4 7 #IO Cover Z27u G3 1 8 #Screw MAC Wafer M3*0.5*L4 Ni 3 9 #Bezel Bottom Z27u ...
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Power board Description HP spare part number Manufacturer part number PWR BD MH27HHC-BQDL Z27U G3 LGD D M97970-001 755.A3C05.0001 PWR BD MH27HHC-BQDE Z27U G3 BOE D M97971-001 755.A3C05.0002 Capacitors...
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2. chenge the length from 20.75mm to 23.5mm 3. Modify the rear cover I/O metal and plastic. 1.Cut off the Pin as below https://www.digikey.com USB-A Molex USB3 PN: WM10413TR-ND 1.Modify the rear cover...
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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 ...
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2) Remove Rear Cover From Display Head: Use the tool to remove the hinge cover, then Release the four screws from back bracket and remove the hinge, then Loose all the hooks by hand for pulling the re...
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4) Release OSD key BD from rear cover 5) Remove IO cover from display head(Remove three screws and loose three hooks by hand) 6) Remove Bracket Assembly From Display Head: disconnect all inside cable,...
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8) Remove Power Key Board from Bezel bottom assy.(Remove two screws) 9) Disassemble Bracket Assembly: remove black Mylar, then release the two AC screws from bracket, Release the six screws for releas...
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2) Locate the part number location on the board.
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3) Pin solder with soldering iron and absorber. NA 4) Lift the connector up and away from the PCB. Connector repair This procedure includes HDMI, Display Port, Mini Display Port, USB-C, USB-A and RJ45...
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2) Use a hot air gun to melt the solder on the pins. 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 compon...
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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. USB-C connector USBC Repair the USB-C connector: 1...
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RJ45 connector RJ45 Repair the RJ45 connector: 1) Use a soldering iron and a de-soldering pump to remove as much solder as possible from the pin. 2) Lift the RJ45 connector from the PCB. 3) Place the ...
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1) Use a soldering iron and a de-soldering pump to remove as much solder as possible from the pin. 2) Lift the USB-A connector from the PCB. 3) Place the new component on the PCB. Be sure that it matc...
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Monitor is turned off. Power the power button. NOTE: If pressing the Power button has no effect, press and hold the power button for 10 seconds to disable the Power button lockout feature. Master powe...
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Index components RC removal, 13 front, 5 rear components, 6 rear, 6 removal connector repair, 18 power board, 16 features, 3 RC, 13 firmware updates, 2 removal and replacement procedures, 13 front com...
Manual Details
| Brand | HP |
|---|---|
| Pages | 27 |
| File Size | 1.72 MB |
| Published | May 22, 2026 |
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Frequently Asked Questions
What precautions must service personnel take before maintenance?
Only trained service personnel familiar with this product should perform any maintenance or service period.
How do I troubleshoot a display signal issue?
Check that the video cable is connected between the computer and monitor, ensuring the computer power is off when connecting.
What if my video card is incompatible?
Open the OSD menu, go to Input, set Auto-Switch Input to Off, manually select the input, or replace the video card.
Where can I find the serial number and product number?
Refer to Section 2 (Locating the serial number and product number) in this manual for details.
Is there a specific procedure for hardware replacement?
The document provides procedures for removal and replacement, including guides for the Rear Cover, Power board, HDMI connector, DP connector, and USB-C connector.