HP E22 G4, Руководство по техническому обслуживанию и ремонту

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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 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.
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Be sure your working environment is dry and clean and meets all government safety requirements.
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Be sure that other persons are safe while you are servicing the product.
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Do not perform any action that can cause a hazard to the customer or make the product unsafe.
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Use proper safety devices to ensure your personal safety.
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Always use approved tools and test equipment for servicing.
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Never assume the product’s power is disconnected from the main power supply. Check that it is
disconnected before opening the product’s cabinet.
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Modules containing electrical components are sensitive to electrostatic discharge (ESD). Follow ESD safety
procedures while handling these parts.
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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.
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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
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Repair must be performed by professional service technicians in a repair center. End users should not
perform these procedures.
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Please note during servicing that the primary side is the high voltage area.
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This monitor meets ROHS requirements. Be sure to use lead-free solder wire when soldering.
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If you must change a capacitor, be sure to match the polarity as printed on the PCB.
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If you must replace a capacitor, make sure the specification and part number match the BOM and location.