ViewSonic VA712B Service Manual - Page 4

Precautions and Safety Notices - adapter

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1. Precautions and Safety Notices 1.1 SAFETY PRECAUTIONS This monitor is manufactured and tested on a ground principle that a user's safety comes first. However, improper use or installation may cause damage to the monitor as well as the user. Carefully go over the following WARNINGS before installing and keep this guide handy. WARNINGS This monitor should be operated only at the correct power sources indicated on the label on the rear end of the monitor. If you're unsure of the power supply in your residence, consult you local dealer or power company. Use only the special power adapter that comes with this monitor for power input. Do not try to repair the monitor your self as it contains no user-serviceable parts. This monitor should only be repaired by a qualified technician. Do not remove the monitor cabinet. There is high-voltage parts inside that may cause electric shock to human bodies, even when the power cord is unplugged. Stop using the monitor if the cabinet is damaged. Have it checked by a service technician. Put your monitor only in a clean, dry environment. If it gets wet, unplug the power cable immediately and consult your service technician. Always unplug the monitor before cleaning it .Clean the cabinet with a clean, dry cloth. Apply non-ammonia based cleaner onto the cloth, not directly onto the glass screen. Keep the monitor away from magnetic objects, motors, TV sets, and transformer. Do not place heavy objects on the monitor or power cord. 1.2 PRODUCT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltages, wattage, etc. Before replacing any of these components read the parts list in this manual carefully. The use of substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock, fire ,or other hazards. 1.3 SERVICE NOTES 1. When replacing parts or circuit boards, clamp the lead wires around terminals before soldering. 2. When replacing a high wattage resistor(more than 1W of metal oxide film resistor) in circuit board, keep the resistor about 5mm away from circuit board. 3. Keep wires away from high voltage, high temperature components and sharp edges. 4. Keep wires in their original position so as to reduce interference. 5. Usage of this product please refers to also user's manual. ViewSonic Corporation Confidential - Do Not Copy VA712-2_ VA712b-2 1

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ViewSonic Corporation
Confidential - Do Not Copy
VA712-2_ VA712b-2
1
1. Precautions and Safety Notices
1.1 SAFETY PRECAUTIONS
This monitor is manufactured and tested on a ground principle that a user’s safety comes first.
However, improper use or installation may cause damage to the monitor as well as the user.
Carefully go over the following WARNINGS before installing and keep this guide handy.
WARNINGS
This monitor should be operated only at the correct power sources indicated on the label on
the rear end of the monitor. If you’re unsure of the power supply in your residence, consult
you local dealer or power company.
Use only the special power adapter that comes with this monitor for power input.
Do not try to repair the monitor your self as it contains no user-serviceable parts. This monitor
should only be repaired by a qualified technician.
Do not remove the monitor cabinet. There is high-voltage parts inside that may cause electric
shock to human bodies, even when the power cord is unplugged.
Stop using the monitor if the cabinet is damaged. Have it checked by a service technician.
Put your monitor only in a clean, dry environment. If it gets wet, unplug the power cable
immediately and consult your service technician.
Always unplug the monitor before cleaning it .Clean the cabinet with a clean, dry cloth. Apply
non-ammonia based cleaner onto the cloth, not directly onto the glass screen.
Keep the monitor away from magnetic objects, motors, TV sets, and transformer.
Do not place heavy objects on the monitor or power cord.
1.2 PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety visual inspections and
the protection afforded by them cannot necessarily be obtained by using replacement
components rated for higher voltages, wattage, etc. Before replacing any of these components
read the parts list in this manual carefully. The use of substitute replacement parts which do
not have the same safety characteristics as specified in the parts list may create shock, fire ,or
other hazards.
1.3 SERVICE NOTES
1. When replacing parts or circuit boards, clamp the lead wires around terminals before
soldering.
2. When replacing a high wattage resistor(more than 1W of metal oxide film resistor) in circuit
board, keep the resistor about 5mm away from circuit board.
3. Keep wires away from high voltage, high temperature components and sharp edges.
4. Keep wires in their original position so as to reduce interference.
5. Usage of this product please refers to also user’s manual.