Advertisement

Quick Links

Maintenance and Service Guide
P27q G4 model
SUMMARY
This guide provides information about spare parts, removal and replacement of parts, diagnostic tests,
problem troubleshooting, and more.

Advertisement

Table of Contents
loading

Summary of Contents for HP P27q G4

  • Page 1 Maintenance and Service Guide P27q G4 model SUMMARY This guide provides information about spare parts, removal and replacement of parts, diagnostic tests, problem troubleshooting, and more.
  • Page 2 AMD is a trademark of Advanced Micro sure to read “Important Safety Information”. 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.
  • Page 3: Table Of Contents

    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 ............................ 2 Before returning the repaired product to the customer ................2 2 Monitor features ............................
  • Page 4: Getting Started

    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.
  • Page 5: Rohs (2002/95/Ec) Requirements

    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.
  • Page 6: Monitor Features

    On-screen display (OSD) adjustments in several languages for easy setup and screen optimization ● HP Display Assistant software for adjusting monitor settings and enabling the theft deterrence features ● HDCP (High-bandwidth Digital Content Protection) copy protection on all digital inputs ●...
  • Page 7: Front Components

    Front components To identify the components on the front of the monitor, use this illustration and table. Table 1-2 Front components Control Function Menu button Press to open the OSD menu, select a menu item from the OSD, or close the OSD menu.
  • Page 8: Rear And Side Components

    Rear and side components To identify the components on the rear of the monitor, use this illustration and table. Table 1-1 Rear components Component Function Power connector Connects the power cord. HDMI port Connects the HDMI cable to a source device such as a computer or game console.
  • Page 9: Locating The Serial Number And Product Number

    Locating the serial number and product number The serial number and product number are located on a label on the rear of the monitor panel. You may need these numbers when contacting HP about the monitor model.
  • Page 10: Illustrated Parts Catalog

    Illustrated parts catalog To identify the monitor major components, use this illustration and table. Item Description PANEL MIDDLE_FRAME LENS L238W-Zat4-s4 LED BOARD ADAPTER BOARD NA MAIN BOARD MAINFRAME KEY BOARD REAR_COVER L27W-Zat10-p12 BASE_ASS’Y L27W-Zat10-p12 NA stand ass'y L27W-Zat10-p12 NA BKT_VESA INSULATING SHEET INSULATING SHEET SCREW 3 4...
  • Page 11: How To Order Parts

    How to order parts The HP authorized repair center can purchase the power board from HP. Power board Manufacturer part Description HP spare part number number N12316-001 ADPCJ1903AA2 PSU P27q G4 Capacitors and connectors are available for purchase from the following EU distributors: ●...
  • Page 12: Removal And Replacement Procedures

    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”...
  • Page 13: Rear Cover

    Rear Cover Before removing the Rear Cover, follow these steps: ▲ Prepare the monitor for disassembly. See Preparation for disassembly on page 9. Remove the Rear Cover: 1) Remove the screws to remove the stand-base assy. 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 middle frame and rear case, and then rotate.
  • Page 14 4) Disassemble Rear Cover. 5) Tear off the tapes. Remove 3 screws to remove the LED board. 6) Remove 11 screws to disassemble the middle frame and Panel. Disconnect the pins.
  • Page 15 7) Remove the mylar. 8) Remove 5 screws to remove the Main Board and Power Board. 9) Remove 4 screws to remove the Key Board. 10) Disassemble all the boards from housing. 11) Disconnect all the wires from the board.
  • Page 16: Power Board

    Before removing the power board, follow these steps: ▲ Prepare the monitor for disassembly. See Preparation for disassembly on page 9. Remove the power board: 1) The HP P27q G4 power board connector position is as follows: CN902 Warning: After unplugging the...
  • Page 17: Connector Repair

    Connector repair This procedure includes HDMI, D-SUB connectors. The connectors are on the main board (board part number CBPRNE7HPQ7). The connectors identifiers are as follows: Connector Location HDMI CN503 D-SUB CN101 Main Board CN503 CN101 IMPORTANT: • Repair Condition: Connector repair is only for out of warranty. •...
  • Page 18: Hdmi Connector Cn503

    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.
  • Page 19: D-Sub Connector Cn101

    D-SUB connector CN101 Repair the D-SUB connector: 1) Use a soldering iron and a de-soldering pump to remove as much solder as possible from the pin. 2) Lift the CN101 connector from the circuit board. 3) Place the new component on the circuit board. Be sure that it matches the circuit board footprint.
  • Page 20: Support And Troubleshooting

    Support and troubleshooting The following table lists possible issues, the possible cause of each issue, and the recommended solutions. Table 3-1 Common issues and solutions Issues Possible cause Solution Screen is blank or Power cord is disconnected. Connect the power cord. video is flashing.
  • Page 21 Index components RC removal, 10 front, 4 rear components, 5 rear, 5 removal connector repair, 14 power board, 13 features, 3 RC, 10 firmware updates, 2 removal and replacement procedures, 9 front components, 4 returning to customer, 2 function test, 16 RoHS (2002/95/EC) requirements, 2 how to order parts, 8 safety information, 1...

Table of Contents