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Provides crucial safety guidelines for using the monitor to prevent electric shock and injury.
Details critical service information and precautions for safe and effective monitor maintenance.
Explains the RoHS directive requirements for electrical and electronic equipment sold in the EU and other countries.
Provides general information about the monitor and outlines two levels of service.
Information on where to find firmware updates for the monitor and when an update is needed.
Details necessary checks, like AC leakage current, before returning a repaired product to the customer.
Identifies and describes the components located on the front of the monitor.
Identifies and describes the components located on the rear of the monitor.
Explains where to find the serial number and product number on the monitor label.
Provides information on how to order spare parts, including distributors and part numbers.
Details preparatory steps and materials needed for disassembling and reassembling the monitor.
Outlines the steps for removing the Rear Cover (RC) of the monitor.
Provides instructions and warnings for removing and handling the monitor's power board.
Details procedures for repairing various connectors on the main board.
Confirms that all monitor functions are working correctly after repair.
Lists common problems, their causes, and recommended solutions for the monitor.
Provides crucial safety guidelines for using the monitor to prevent electric shock and injury.
Details critical service information and precautions for safe and effective monitor maintenance.
Explains the RoHS directive requirements for electrical and electronic equipment sold in the EU and other countries.
Provides general information about the monitor and outlines two levels of service.
Information on where to find firmware updates for the monitor and when an update is needed.
Details necessary checks, like AC leakage current, before returning a repaired product to the customer.
Identifies and describes the components located on the front of the monitor.
Identifies and describes the components located on the rear of the monitor.
Explains where to find the serial number and product number on the monitor label.
Provides information on how to order spare parts, including distributors and part numbers.
Details preparatory steps and materials needed for disassembling and reassembling the monitor.
Outlines the steps for removing the Rear Cover (RC) of the monitor.
Provides instructions and warnings for removing and handling the monitor's power board.
Details procedures for repairing various connectors on the main board.
Confirms that all monitor functions are working correctly after repair.
Lists common problems, their causes, and recommended solutions for the monitor.
This document serves as a comprehensive Maintenance and Service Guide for the HP V28 4K model monitor, providing essential information for trained service personnel. It outlines procedures for disassembly, part replacement, diagnostic testing, and troubleshooting, ensuring the safe and effective servicing of the device. The guide emphasizes adherence to safety regulations and environmental compliance, particularly regarding RoHS requirements and the use of lead-free solder.
The HP V28 4K monitor is a high-resolution display designed for various applications, including entertainment and professional use. It features a liquid crystal display (LCD) with an active matrix and a WLED backlight, offering a wide viewing angle suitable for different viewing positions. The monitor supports a 3840 x 2160 resolution, with full-screen support for lower resolutions and custom scaling to maintain the original aspect ratio. It includes multiple video inputs, such as DisplayPort™ and two High-Definition Multimedia Interface™ (HDMI) ports, allowing connectivity to various source devices like computers and game consoles. An audio-out (headphone) jack is also provided for audio connectivity. The monitor incorporates Plug and Play capability, simplifying setup with compatible operating systems. For enhanced gaming and video experiences, it supports FreeSync™ technology, an Adaptive-Sync feature that reduces stuttering and tearing by synchronizing the monitor's refresh rate with the graphics card's frame rate. An energy saver feature is integrated to meet requirements for reduced power consumption.
The HP V28 4K monitor is designed with user convenience and flexibility in mind. It features tilt adjustment capability, allowing users to customize the viewing angle for optimal comfort. The monitor comes with a removable stand, which, combined with the HP Quick Release 2 device, enables quick attachment and removal of the monitor head. This design supports flexible mounting solutions, including VESA® mounting brackets for wall-mount devices or swing arms, and a dedicated bracket for attaching the monitor to a workstation.
The monitor's front panel includes four on-screen display (OSD) buttons. One button is dedicated to opening, selecting items within, and closing the OSD menu. The other three OSD buttons are assignable, allowing users to reconfigure them for quick access to commonly used operations. A power button controls the monitor's on/off state, complemented by a power light that indicates whether the monitor is on (white) or in a reduced power state due to inactivity (amber). The OSD menu provides adjustments in several languages for setup and screen optimization, enhancing the user's ability to fine-tune display settings.
This guide is specifically tailored for professional service technicians in a repair center, not end-users, to ensure proper maintenance and repair. It outlines a structured approach to servicing, starting with important safety information and precautions, including warnings about high voltage areas and the necessity of using lead-free solder for RoHS compliance.
The maintenance procedures cover two levels of service: cosmetic/appearance/alignment service and circuit board or standard parts replacement. Detailed instructions are provided for preparing the monitor for disassembly, including cleaning the room, identifying the disassembly area, and ensuring the availability of necessary equipment such as press fixtures, screwdrivers, knives, gloves, cleaning cloths, ESD protection, and a scraper bar.
The guide includes step-by-step instructions for the removal and replacement of various components. For instance, it details how to remove the rear cover by unscrewing specific fasteners, detach the stand-base assembly, and carefully remove internal components like the main board, power board, and connectors. Special attention is given to connector repair, with specific procedures for HDMI, DisplayPort, and Audio connectors. These procedures involve using soldering irons, desoldering pumps, and hot air guns to remove old solder and attach new components, emphasizing careful handling to avoid short circuits and overheating.
The document also provides an illustrated parts catalog, listing major components with their descriptions and quantities, and information on how to order spare parts from authorized distributors like Farnell, RS, and Digi-Key. It specifies part numbers for the power board, capacitors, and connectors, facilitating accurate ordering.
After repairs, the guide mandates performing a function test to confirm proper operation, including checking image display, sound volume, and power supply functionality. It also requires an AC leakage current check on exposed metallic parts to ensure the product is safe from electrical shock before returning it to the customer. Troubleshooting tables are included to assist technicians in diagnosing common problems such as a blank screen, incorrect display settings, or issues with FreeSync functionality, offering potential causes and solutions. Firmware updates, if available, are directed to support.hp.com, ensuring the monitor operates with the latest software enhancements.
General| Color | black |
|---|---|
| Screen Type | led |
| Tiltable | yes |
| Wall Mount | 100mm x 100mm |
| Touch Screen | no |
| Webcam | no |
| OS Compatibility | windows |
| Screen Size | 28 inches |
| Panel Type | tn |
| Aspect Ratio | 16:9 |
| Resolution | 3840 x 2160 |
| Native Resolution | 3840 x 2160 |
| Refresh Rate | 60hz |
| Horizontal Viewing Angle | 170 degrees |
| Vertical Viewing Angle | 160 degrees |
| Response Time | 1 milliseconds |
| Brightness | 300 candela per square meter |
| Contrast Ratio | 10, 000, 000:1 |
| Pixel Pitch | 93 pixels per inch |
| Synchronization | freesync (amd adaptive sync) |
| Horizontal Scan Rate | 136 kilohertz |
| HDR | no |
| Built-In Speakers | no |
| HDMI Ports | 2 |
| Display Port Inputs | 1 |
| Mini Display Port | 0 |
| VGA Ports | 0 |
| DVI | 0 |
| Thunderbolt Ports | 0 |
| Headphones Output | yes |
| Power Saving Mode | 0.5 watts |
| Power Consumption | 45 watts |
| Depth with Stand | 9.05 inches |
| Height with Stand | 18.37 inches |
| Width with Stand | 25.93 inches |
| Net Weight without Stand | 12.11 pounds |
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