hp E190i IPS Monitor LED User Guide

hp E190i IPS Monitor LED

Product Information

The Maintenance and Service Guide provides users with information about spare parts, removal and replacement of parts, diagnostic tests, problem troubleshooting, and more for the E190i model monitor. The guide also includes trademark information for AMD, Bluetooth, NVIDIA, USB Type-C and USB-C, DisplayPort, and the DisplayPort logo. The information contained in the guide is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services.

Product Usage Instructions

Before performing any maintenance or service on the E190i model monitor, users must read the Important Safety Information provided in the guide. Only trained service personnel who are familiar with this HP product should perform service or maintenance for it. It is important to disconnect the power cord from the power source before opening the monitor to prevent component damage. When working with the monitor, users should ensure their working environment is dry and clean and meets all government safety requirements. They should also ensure that other persons are safe while they are servicing the product and not perform any action that can cause a hazard to the customer or make the product unsafe. Proper safety devices should be used to ensure personal safety, and approved tools and test equipment should always be used for servicing. Users should never assume the product’s power is disconnected from the main power supply and should check that it is  disconnected before opening the product’s cabinet. Modules containing electrical components are sensitive to electrostatic discharge (ESD), so users should follow ESD safety procedures while handling these parts. Some products contain more than one battery, so users should not disassemble or expose a battery to high temperatures such as throwing into fire, or the battery may explode. Users should refer to government requirements for battery recycling or disposal. Adherence to the procedures and precautions outlined in the guide is essential for proper service of the monitor.

SUMMARY
This guide provides information about spare parts, removal and replacement of parts, diagnostic tests, problem troubleshooting, and more.

© Copyright 2021 HP Development Company, L.P.
AMD is a trademark of Advanced Micro 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. USB Type-C and USB-C are registered trademarks of USB Implementers Forum. DisplayPort and the DisplayPort logo are trademarks owned by the Video Electronics Standards Association (VESA) in the United States and other countries. The information contained herein is subject= to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
First Edition: January 2022
Document Part Number: 734057-E190iMSG-V1
Assembly part number: 734057-001

Product notice
Only trained service personnel familiar with this product should service it. Before performing any maintenance or service, be sure to read “Important Safety Information”

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. Improper service methods can damage equipment. The service procedures recommended and described in this service manual provide effective methods of performing service operations. Service engineers should have prior repair knowledge and experience as well as appropriate training for the product before performing service procedures.

• Be sure your working environment is dry and clean and meets all government safety requirements.
• Be sure that other persons are safe while you are servicing the product.
• Do not perform any action that can cause a hazard to the customer or make the product unsafe.
• Use proper safety devices to ensure your personal safety.
•  Always use approved tools and test equipment for servicing.
• Never assume the product’s power is disconnected from the main power supply. Check that it is disconnected before opening the product’s cabinet.
• Modules containing electrical components are sensitive to electrostatic discharge (ESD). Follow ESD safety procedures while handling these parts.
• Some products contain more than one battery. Do not disassemble or expose a battery to high temperatures, such as throwing into fire, or the battery may explode.
• Refer to government requirements for battery recycling or disposal.

This information provides general service information for the monitor. Adherence to the procedures and precautions is essential for proper service.
IMPORTANT : Only trained service personnel who are familiar with this HP product should perform service or maintenance for it. Before performing any service or maintenance, personnel must read the important safety information.
IMPORTANT : You must disconnect the power cord from the power source before opening the monitor to prevent component damage.

Important service information and precautions

• Repair must be performed by professional service technicians in a repair center. End users should not perform these procedures.
• Please note during servicing that the primary side is the high voltage area.
• This monitor meets ROHS requirements. Be sure to use lead-free solder wire when soldering.
• If you must change a capacitor, be sure to match the polarity as printed on the PCB.
• If you must replace a capacitor, make sure the specification and part number match the BOM and 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 causes malfunctions.
• To avoid damage, be sure to use lead-free solder.
• When soldering, work quickly to avoid overheating the circuit board.
• Keep the soldering iron tip clean and well tinned when replacing parts.
• After repair, perform a close inspection of the circuit board to confirm it is in good condition.
• After repair, perform a function test to confirm the power supply is working properly.

ERP Lot5 requirement

1. A professional repairer must have the technical competence to repair electronic displays and comply with the applicable regulations for repairers of electrical equipment in the Member States where the repairer operates. Reference to an official registration system as professional repairer, where such a system exists in the Member States, shall be accepted as proof of compliance.
2. A professional repairer must have insurance that covers liabilities resulting from repairs, regardless of whether required by the Member State.

RoHS (2002/95/EC) requirements

Applied to all countries that require RoHS.
The RoHS (Restriction of Hazardous Substance in Electrical and Electronic Equipment Directive) is a legal requirement by the EU (European Union) for the global electronics industry sold in the EU and other countries. Any electrical and electronics products launched in the market after June 2006 should meet this RoHS requirement. Products launched in the market before June 2006 are not required to be compliant with RoHS parts. If the original parts are not RoHS complaint, the replacement parts can be non-ROHS complaint. If the original parts are RoHS compliant, the replacement parts MUST be RoHS complaint. If product service or maintenance requires replacing parts, confirm the RoHS requirement before replacement.

General descriptions

This manual contains general information. There are two levels of service:

• Level 1: Cosmetic/appearance/alignment service
• 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. Do not use a line isolation transformer during this check.
Measurements that are not within specified limits present a possible shock hazard. You must check and repair the product before returning it to the customer.

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

• EliteDisplay E190i model, 47.99 cm (18.89–inch) diagonal viewable area display with 1280 x 1024 resolution, plus full-screen support for lower resolutions: includes custom scaling for maximum image size
• Non-glare panel with an LED backlight
• Wide viewing angle to allow viewing from a sitting or standing position, or moving from side to side
• Tilt capabilities
• Pivot capability to rotate display to portrait mode
• Swivel and height adjustment capabilities
• Removable stand for flexible monitor head mounting solutions
• Video signal input to support VGA analog (cable provided)
• Video signal input to support DVI digital (cable provided)
• Video signal input to support DisplayPort digital (cable optional in some countries)
• USB 2.0 hub with one upstream port (connects to the computer) and two downstream ports (connects to USB devices)
• USB cable provided to connect the monitor’s USB hub to the USB connector on the computer
• Supports an optional HP speaker bar
• Plug and play capability if supported by the system
• Privacy filter slots to insert filters (purchased separately) to block side screen viewing
• Security slot provision on rear of monitor for optional cable lock
• Cable management feature for placement of cables and cords
• On-Screen Display (OSD) adjustments in several languages for easy setup and screen optimization
• HP Display Assistant for adjusting monitor settings and enabling theft deterrence features
• HDCP copy protection on DVI and DisplayPort inputs
• Software and documentation disc that includes monitor drivers and product documentation
• Energy saver feature to meet requirements for reduced power consumption
• Intelligent Management AssetControl
• Compliant with the following regulated specifications (for additional certifications and agency notices, refer to the HP LCD Monitors Reference Guide on the disc included with this monitor
  • European Union CE Directives
  • Swedish TCO Requirements
    NOTE : For safety and regulatory information, refer to the Product Notices provided in your documentation kit. To access the latest user guides or manuals for your product, go to http://www.hp.com/support and follow the instructions to find your product. Then select Manuals.

Front components
To identify the components on the front of the monitor, use this illustration and table

Rear and side components
To identify the components on the rear of the monitor, use this illustration and table

Locating the serial number and product number
The Spec and Barcode label are located on the rear of the monitor. The serial number and product number are located on a Barcode label. You may need these numbers when contacting HP about the monitor model

Illustrated parts catalog

To identify the monitor major components, use this illustration and table

How to order parts
The HP authorized repair center can purchase the power board from HP. The HP authorized repair center can purchase the power board from HP.

Capacitors and connectors are available for purchase from the following EU distributors:
Suscon: www.su-scon.com

NOTE: The connector may need to be modified to meet functionality, regulatory and safety requirements if it is not an exact match.
You can purchase cables from the HP part store at https://partsurfer.hp.com/Search.aspx.
NOTE: HP continually improves and changes product parts. For complete and current information about supported parts for your computer, go to http://partsurfer.com, select your country or region, and then follow the on-screen instructions.
Internal and External Power Supplies are available for purchase from the following EU distributor: EET https://www.eetgroup.com/en-eu/

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” chapter of this guide.
2. Clean the room for disassembly.
3. Identify the disassembly area.
4. Check the position that the monitors are to be placed along with the number of monitors. Prepare the area for material flow according to the disassembly layout.
5. Be sure to have the following equipment and materials:
   • Press fixture
   • Working table
   • Screwdriver
   • Knife
   • Gloves
   • Cleaning cloth
   • ESD protection
   • Scraper bar in the following dimensions:

Rear Cover
Before removing the Rear Cover, follow these steps:
▲ Prepare the monitor for disassembly. See Preparation for disassembly.

1. Release the 4pcs screws for Stand to RC and remove Stand from Display Head.
2. Remove Rear Cover from Display Head
3. Remove Front Cover with function key board from Display Head.
4. Remove 4pcs screw for unlocking the bracket with panel. Tear off AL tape and disconnect LVDS cable..
5. ) Remove 7pcs screws for unlocking the AC outlet and all connectors.
6. ) Remove 1pcs screws for unlocking the USB unit, then remove the cable from the connector.
7. ) Lift up the bracket chassis module away from the panel module.
8. ) Remove 5pcs crews for unlocking all circuit board, then remove all the boards from the bracket.

Power board
The power board part number is 55.7W704.001G.
Before removing the power board, follow these steps:
▲ Prepare the monitor for disassembly. See Preparation for disassembly on page 11.

Remove the power board:

1. The HP E190i power board connector position is as follows:
2. Locate the part number location on the board.
3. Pin solder with soldering iron and absorber. NA
4. Lift the connector up and away from the PCB. No

Connector repair
This procedure includes D-SUB, DVI, Display Port, USB-B and USB-A connectors.
The connectors are on the main board (board part number 48.7S703.01M and side BD 48.7J705.011).

The connector identifiers are as follows: Main BD – 48.7S703.01M Before repairing connectors, follow these steps:
▲ Prepare the monitor for disassembly. See Preparation for disassembly

D-Sub connector P302
Repair the D-Sub connector:

1. Use a soldering iron to remove as much solder as possible from the pin.
2. Use a hot air gun to melt the solder on the pins
3. Lift the D-Sub 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.

DVI connector P303
Repair the DVI connector:

1. Use a soldering iron to remove as much solder as possible from the pin.
2. Use a hot air gun to melt the solder on the pins
3. Lift the DVI 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.

DP connector P302
Repair the DP connector:

1. Use a soldering iron to remove as much solder as possible from the pin.
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 component.

USB-B connector P202
Repair the USB-B connector:

1. Use a soldering iron to remove as much solder as possible from the pin.
2. Use a hot air gun to melt the solder on the pins
3. Lift the USB-B 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-A connector P2A2, P2A3
Repair the USB-A connector:

1. Use a hot air gun to melt the solder on the pins. Pin solder with soldering iron and absorber. You can gently push down with the soldering iron once everything is molten to move USB-A connector out of the through holes.
2. Lift the USB-A connector from the PCB.
3. Place the new component on the PCB. Be sure that it matches the PCB footprint.
4. Solder the new component.

Function test
After repair, be sure to confirm that all functions are working.

Support and troubleshooting

The following table lists possible problems, the possible cause or each problem, and the recommended solutions.

References

• partsurfer.com
• partsurfer.com/
• support.hp.com
• hp.com/support
• Su'scon – 冠坤電子
• HP PartSurfer
• DigiKey - Electronic Components Distributor
• DigiKey - Electronic Components Distributor
• EET International

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