HP Z27q G3 QHD Display Maintenance and Service Guide
Summary
This comprehensive service guide provides trained technicians with all necessary information for maintaining and repairing the Z27q G3 monitor. It covers detailed component identification via an illustrated parts catalog, step-by-step procedures for removing and replacing key parts like power boards and connectors, and critical safety guidelines. Users can find extensive troubleshooting tips for common display issues—such as input signal errors or OSD lockouts—ensuring efficient repairs and proper product restoration following service.
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Maintenance and Service Guide Z27q 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 Z27q G3 QHD Display Maintenance and Service Guide
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Maintenance and Service Guide Z27q 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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then 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 attachi...
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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 2-2 Rear and side components and their descriptions Component Description (1) OSD...
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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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2 #ASSY Main Chassis Z27q G3 1 3 #Power Board Z27q G3 1 4 #Interface Board Z27q G3 1 5 #Screw M3*7.5 Tapping metal 5 6 #Screw Cap Head M4*8 1 7 #Mylar Power Z27q G3 1 8 #Screw Double Thread Flat M3*10...
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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 POWER BD MG27HHC-BNUL(C)Z27q G3 LGD DIP M...
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1. Modify the rear cover I/O metal and plastic. 2. Cut off the Pin as below https://www.digikey.com Amphenol USB-B USB1 PN:AE11189-ND NOTE: The connector may need to be modified to meet functionality,...
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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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CN801 Wistron P/N: 020.60171.0112 2) Locate the part number location on the board. 3) Pin solder with soldering iron and absorber.
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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 Phone Jack connectors. The connectors are on the main b...
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HDMI connector HDMI1 Repair the HDMI 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. ...
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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 componen...
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3) Place the new component on the PCB. Be sure that it matches the PCB footprint. Solder the new component USB-A connector USB2/USB3 Repair the USB-A connector: 1) Use a soldering iron and a de-solder...
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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 D...
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connect the video cable to one of the computer’s on- board video sources. Image appears Brightness is too low. Open the OSD menu and blurred, select Brightness to adjust indistinct, or too the brightn...
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Index components RC removal, 12 front, 5 rear components, 6 rear, 6 removal connector repair, 17 power board, 15 features, 3 RC, 12 firmware updates, 2 removal and replacement procedures, 12 front com...
Manual Details
| Brand | HP |
|---|---|
| Pages | 26 |
| File Size | 1.68 MB |
| Published | June 18, 2026 |
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Frequently Asked Questions
What is the primary safety warning before I begin service?
Only trained service personnel familiar with this product should perform any maintenance or service.
How do I connect a computer if I get a blurred video signal?
Check that the appropriate video cable is connected between the computer and monitor, ensuring the computer power is off while connecting.
My monitor auto-switches inputs unexpectedly; how do I stop it?
Open the OSD menu, navigate to the Input menu, and set 'Auto-Switch Input' to Off. Then manually select the desired input source.
What should I adjust if the display brightness is incorrect?
Open the OSD menu and locate the Brightness scale to adjust the picture to the needed level.