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Manual Acer AT4221 LCD Television

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Manual

English

Important safety instructions

Read these instructions carefully. Please put them somewhere safe for

future reference.

1 Follow all warnings and instructions marked on the product.

2 Unplug this product from the wall outlet before cleaning. Do

not use liquid cleaners or aerosol cleaners. Use a damp cloth for

cleaning.

3 Do not use this product near water.

4 Do not place this product on an unstable cart, stand or table. The

product may fall, sustaining serious damage.

5 Slots and openings are provided for ventilation; to ensure reliable

operation of the product and to protect it from overheating,

these openings must not be blocked or covered. The openings

should never be blocked by placing the product on a bed, sofa,

rug or other similar surface. This product should never be placed

near or over a radiator or heat register or in a built-in installation

unless proper ventilation is provided.

6 This product should be operated from the type of power

indicated on the marking label. If you are not sure of the type of

power available, consult your dealer or local power company.

7 Do not allow anything to rest on the power cord. Do not locate

this product where the cord will be stepped on.

8 If an extension cord is used with this product, make sure that the

total ampere rating of the equipment plugged into the extension

cord does not exceed the extension cord ampere rating. Also,

make sure that the total rating of all products plugged into the

wall outlet does not exceed the fuse rating.

9 Never push objects of any kind into this product through cabinet

slots as they may touch dangerous voltage points or short-out

parts, which could result in a ﬁre or electric shock. Never spill

liquid of any kind on the product.

10 Do not attempt to service this product yourself, as opening or

removing covers may expose you to dangerous voltage points or

other risks. Refer all servicing to qualiﬁed service personnel.

11 Unplug this product from the wall outlet and refer servicing to

qualiﬁed service personnel under the following conditions:

a. When the power cord or plug is damaged or frayed.

b. If liquid has been spilled into the product.

c. If the product has been exposed to rain or water.

d. If the product does not operate normally when the operating

instructions are followed. Adjust only those controls that are

covered by the operating instructions.Improper adjustment

of other controls could result in damage; extensive work by

a qualiﬁed technician might then be required to restore the

product to normal condition.

e. If the product has been dropped or the case has been

damaged.

f. If the product exhibits a distinct change in performance,

indicating a need for service.

12 Use only the proper type of power supply cord set (provided in

your accessories box) for this unit. Always disconnect the power

cord from the wall outlet before servicing or disassembling this

equipment.

13. Do not overload an electrical AC outlet, power strip, or

convenience receptical. The overall system load must not exceed

80% of the branch circuit rating. If power strips are used, the load

should not exceed 80% of the power strip input rating.

14 Some products are equipped with a three-wire electrical

grounding-type plug that has a third pin for grounding. This plug

only ﬁts into a grounded electrical outlet. This is a safety feature.

Make sure the AC outlet is properly grounded. Do not defeat the

safety purpose of the grounding-type plug by trying to insert it

into a non-grounded outlet. If you cannot insert the plug into the

outlet, contact your electrician to replace the obsolete outlet.

Disposal instructions

Do not throw this electronic device into the rubbish bin / container

when discarding. To minimize pollution and ensure utmost protection

of the global environment, please recycle.

For more information regarding WEEE, please refer to

http://global.acer.com/about/environmental.htm

Declaration of Conformity

Name of Manufacturer: Acer Computer (Shanghai) Limited

Address of Manufacturer: 3F, No. 168 xizang medium road, Huangpu

District, Shanghai, China

Declares that product: LCD TV Monitor

Model:

AT4221 ; AT4222 ; AT3221 ; AT3222

AT2621 ; AT2622

Conforms to the EMC Directive 89/336/EEC as attested by conformity

with the following harmonized standards:

EN 55013: 2001+A1: 2003: Sound and television broadcast receivers

and associated equipment - Radio disturbance characteristics - Limits

and methods of measurement

EN 55020: 2002+A1: 2003: Sound and television broadcast receivers

and associated equipment - Immunity characteristics - Limits and

methods of measurement

EN55022:1998/A1:2000; AS/NZS CISPR 22: 2002: Limits and methods

of measurement of Radio Interference characteristics of Information

Technology Equipment.

EN55024: 1998/A1: 2001; AS/NZS CISPR 24: 1997: Information

technology equipment-Immunity characteristics-Limits and methods

of measurement.

Conforms to the Low Voltage Directive 73/23/EEC as attested by

conformity with the following harmonized standard:

EN60065: 1998: Audio, video and similar electronic apparatus-safety

requirements.

We, Acer Computer (Shanghai) Limited, hereby declare that the

equipment bearing the trade name and model number speciﬁed

above was tested conforming to the applicable Rules under the most

accurate measurement standards possible, and that all the necessary

steps have been taken and are in force to assure that production

units of the same equipment will continue to comply with the

requirements.

June 15, 2007

Easy Lai / Director

Acer Computer (Shanghai) Limited

The grounding pin is an important safety feature. It is possible

to receive an electric shock from a system that is not properly

grounded

The grounding pin is also providing good immunity ability against

unexpected noise that interferes performance of this product and is

produced by other nearby electrical devices.

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Specifications

Brand	Acer
Model	AT4221
Category	LCD Televisions
File type	PDF
File size	3.28 MB

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Frequently Asked Questions about Acer AT4221 LCD Television

Our support team searches for useful product information and answers to frequently asked questions. If you find an inaccuracy in our frequently asked questions, please let us know by using our contact form.

How do I connect a universal remote control to my television? Verified

To connect your universal remote control, you need the model number and brand name of both the remote control and the television. There is a list of codes for brands and model numbers in the manual of the remote control .

This was helpful (2079) Read more

I want to connect a speaker to my LCD television with HDMI, which port should I use? Verified

You need to use the HDMI-ARC port, which is specifically made for connecting audio equipment.

This was helpful (1400) Read more

Does it matter to which HDMI port I connect my device? Verified

In general you can connect a device like a blu-ray player or game console to any HDMI port. The device can then be used by selecting the corresponding HDMI channel on your television.

This was helpful (740) Read more

How do I measure the inches of my LCD television? Verified

Measuring the inches on your LCD television is done by measuring the diagonal distance between for example the upper left corner and the lower right corner of the screen (not the edge). One inch equals 2,54 centimeter, so when you measure 99 centimeter, this means your LCD television is 39 inches.

This was helpful (528) Read more

Will my remote control also work on other television models of the same brand? Verified

Often a remote control of a television will also work on similar models of the same brand. However, it is unusual that it will work on all models of that brand. Universal remote controls are more suited to do this.

This was helpful (305) Read more

What is the difference between LCD and LED? Verified

Both techniques use an LCD screen that emits no light by itself. The difference is in the lighting behind the screen. With LCD screens this is done by CCFL (cold-cathode fluorescent lamp) and LED makes use of LED lights.

This was helpful (278) Read more

Can I repair a dead pixel myself? Verified

There is a difference between a dead pixel and a stuck pixel. A stuck pixel is still coloured and might be fixed by applying light pressure exactly onto the pixel until it restores itself. A dead pixel is always black or white and can't be repaired by yourself.

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What does HDMI stand for? Verified

HDMI stands for High-Definition Multimedia Interface. HDMI is a connection to send high quality video and audio from one device to another.

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Why are there letters next to the numbers on the remote control? Verified

Certain television settings may require you to enter letters. There are usually three letters or other characters on a button. When letter input is required, you can press that button once for the first letter, press twice for the second letter and press 3 times for the third letter. This way, text can be written with a minimum number of buttons.

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What is the contrast ratio? Verified

The contrast ratio tells how far the whitest white is from the blackest black. A contrast ratio of for example 400:1 means that the blackest black on screen is 400 times darker than the whitest white. A high contrast ratio contributes to the sharpness of the image.

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What is the optimal viewing distance for my television? Verified

This partially depends on personal preference, but as a rule of thumb the optimal viewing distance is about 3x the diagonal screen size of the television. For a television of 60 inch (152cm) the optimal viewing distance would be 180 inch or about 4.5 meter.

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How can I properly clean my LCD television? Verified

Turn off the television and wipe dust and dirt off the screen with a microfiber cloth. Do not use paper, this can cause scratches. Do not apply too much pressure or you might cause damage to pixels. Use a specialized detergent or make one by mixing 1 part vinegar with 1 part water. Moisten the cloth with the detergent and clean the screen. Make sure the cloth is not too wet. Remove stains by making rotating movements. Dry the screen with a second microfiber cloth to prevent stripes.

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