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HP E27m G4 QHD USB-C Meeting Monitor Maintenance and Service Guide

Summary

Comprehensive service documentation designed exclusively for trained technicians maintaining the E27m G4 display model. This manual provides essential information covering safety precautions, detailed troubleshooting flows, and effective methods for diagnosing common display issues. It guides service personnel through identifying faulty components, accessing an illustrated parts catalog, and executing precise replacement procedures for internal components like power boards and various connectors.

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Maintenance and Service Guide

E27m G4 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 E27m G4 QHD USB-C Meeting Monitor Maintenance and Service Guide

Page 1 Maintenance and Service Guide E27m G4 model SUMMARY This guide provides information about spare parts, removal and replacement of parts, diagnostic tests, problem troubleshooting, and more.
Page 2 © Copyright 2021 HP Development Product notice Company, L.P. Only trained service personnel familiar with this product should service it. Before AMD is a trademark of Advanced Micro performing any mai...
Page 3 Table of Contents 1 Getting started….……………………………………………………………………………………………………………...2 Important safety information ...........................................................................................
Page 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...
Page 5 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...
Page 6 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: ● 68.6cm (27inch) diagonal viewable ...
Page 7 ● 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 NOTE: For safety an...
Page 8 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 Function 1 Camera Allows you to v...
Page 9 Table 1-2: Rear components and their descriptions Component Function 1 Audi-out (headphone)/Audio in Connects optional powered stereo speakers, (microphone) combo jack headphones, earbuds, a headset, ...
Page 10 NOTE: When a device is connected to the jack, the speakers are disabled. 2 Power button Turns the monitor on or off. 3 OSD buttons (assignable) When the OSD menu is open, press the buttons to navigate...
Page 11 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 m...
Page 12 For India: Bar code label Spec label
Page 13 3 Illustrated parts catalog To identify the monitor major components, use this illustration and table. Item Description Qty 1 LOGO HP 12 1 2 DECO_BEZEL 1 3 Deco mylar 1 4 Speaker Cover 1 5 Lens 3 6 SP...
Page 14 10 Power Board 1 11 RUBBER Boss 2 12 MAINFRAME 1 13 HEAT SINK 1 14 Skype key board 1 15 Skype key 1 16 Spring 1 17 Release button 1 18 K-lock plate 1 19 Audio board 1 20 Audio Finger 1 21 OSD key boar...
Page 15 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 E27m G4 1st source N02580-001 PLPCLH3...
Page 16 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 ...
Page 17 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 mid...
Page 18 6) Remove the Audio board wire, Connector board wire and Webcam module wire from the Interface- board. 7) Disassemble the USB board from the Rear Cover (if required). 8) Remove 2 screws from the brack...
Page 19 Power board The power board part number is PLPCLH351IQA3 (1st source) or PLPCLH511AQA1 (2nd source). Before removing the power board, follow these steps: ▲ Prepare the monitor for disassembly. See Pre...
Page 20 The connectors are on the main board (board part number CBPCPD9H1Q1) The connectors identifiers are as follows: Connector Location HDMI CN501 Display Port 1 CN502 Display Port 2 CN503 USB Type-C CN101...
Page 21 AUDIO BOARD CN610 This procedure includes USB3.0 connectors The connectors is on USB board (board part number USBPQAE). The connector identifiers are as follows: Connector Location USB 3.0 CN1032 USB ...
Page 22 • 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 ...
Page 23 2) Use a hot air gun to melt the solder on the pins. 3) Lift the CN501 connector from the circuit board. 4) Place the new component on the circuit board. Be sure that it matches the footprint. 5) Sold...
Page 24 2) Use a hot air gun to melt the solder on the pins. 3) Lift the CN503 connector from the circuit board.. 4) Place the new component on the circuit board. Be sure that it matches the footprint. 5) Sol...
Page 25 4) Place the new component on the circuit board. Be sure that it matches the footprint. 5) Solder the new component. RJ45 connector CN105 Repair the RJ45 connector: 1) Use a soldering iron and a de-so...
Page 26 2) Lift the CN1032&CN1033 connector from the circuit board. 3) Place the new component on the circuit board. Be sure that it matches the circuit board footprint. 4) Solder the new component.
Page 27 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 and sound Com...
Page 28 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 brightness scale as dark. needed. Check Video ...
Page 29 Index components preparation for disassembly, 14 front, 6 RC removal, 14 rear, 6 rear components, 6 connector repair, 17 removal features, 4 power board, 17 firmware updates, 3 RC, 14 front components...

Manual Details

Brand HP
Pages 29
File Size 2.21 MB
Published June 18, 2026
7 views

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Frequently Asked Questions

Who is authorized to perform maintenance or service?

Only trained service personnel familiar with this product should perform any maintenance or service.

The image appears too dark; what setting needs adjustment?

Open the OSD menu and manually select Brightness to adjust the illumination level as needed.

What should I do if my monitor's signal is not detected?

Check that the appropriate video cable is connected between the computer and screen, ensuring the computer power is off while connecting.

How can I disable the OSD Lockout function?

Press and hold the Menu button for 10 seconds until 'OSD Lockout' is displayed to disable it.