Ventilation

The slots and openings in the cabinet and in the back or bottom are provided for necessary ventilation. To ensure reliable operation of the set, and to protect it from overheating, these slots and openings must never be blocked or covered.

❑Never cover the slots and openings with a cloth or other materials.

❑Never block the slots and openings by placing the set on a bed, sofa, rug or other similar surface.

❑Never place the set in a confined space, such as a bookcase, or built-in cabinet, unless proper ventilation is provided.

❑Do not place the set near or over a radiator or heat register, or where it is exposed to direct sunlight.

Power Cord Protection

Do not allow anything to rest on or roll over the power cord, and do not place the set where the power cord is subject to wear or abuse.

Antennas

Outdoor Antenna Grounding

If an outdoor antenna is installed, follow the precautions below. An outdoor antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or where it can come in contact with such power lines or circuits.

WHEN INSTALLING AN OUTDOOR ANTENNA SYSTEM, EXTREME CARE SHOULD BE TAKEN TO KEEP FROM CONTACTING SUCH POWER LINES OR CIRCUITS AS CONTACT WITH THEM IS ALMOST INVARIABLY FATAL.

Be sure the antenna system is grounded so as to provide some protection against voltage surges and built-up static charges. Section 810 of the National Electrical Code (NEC) in USA and Section 54 of the Canadian Electrical Code in Canada provide information with respect to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrodes, and requirements for the grounding electrode.

Antenna Grounding According to the National Electrical Code, ANSI/NFPA 70

Lightning

For added protection for this television receiver during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna.

This will prevent damage to the receiver due to lightning and power line surges.

Service

Damage Requiring Service

Unplug the set from the wall outlet and refer servicing to qualified service personnel under the following conditions:

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

❑If liquid has been spilled into

the set or objects have fallen into the product.

❑If the set has been exposed to rain or water.

❑If the set has been subject to excessive shock by being dropped, or the cabinet has been damaged.

❑If the set does not operate normally when following the operating instructions. Adjust only those controls that are specified in the operating instructions. Improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the set to normal operation.

❑When the set exhibits a distinct change in performance, it indicates a need for service.

Servicing

Do not attempt to service the set yourself since opening the cabinet may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.

Replacement Parts

When replacement parts are required, be sure the service technician certifies in writing that he has used replacement parts specified by the manufacturer that have the same characteristics as

Ground clamp

Electric service equipment

NEC: National Electrical Code

Antenna lead-in wire

Antenna discharge unit (NEC Section 810-20)

Grounding conductors (NEC Section 810-21)

Ground clamps

Power service grounding electrode system (NEC Art 250 Part H)

the original parts.

Unauthorized substitutions may result in fire, electric shock or other hazards.

Safety Check

Upon completion of any service or repairs to the set, ask the service technician to perform routine safety checks (as specified by the manufacturer) to determine that the set is in safe operating condition, and to so certify. When the set reaches the end of its useful life, improper disposal could result in a picture tube implosion. Ask a qualified service technician to dispose of the set.

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Sony KV-27HS420 manual Ventilation
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KV-27HS420 specifications

The Sony KV-27HS420 is a notable entry in the world of television technology, emblematic of the brand’s commitment to quality and innovation. Introduced in the early 2000s, this 27-inch CRT television set combines classic design with a range of features and technological advancements that marked its time.

One of the standout features of the KV-27HS420 is its high-resolution display, capable of delivering vibrant colors and sharp images. The television employs Sony’s Digital Crystal Clear technology to enhance picture quality, providing viewers with an immersive visual experience. This technology works by optimizing contrast and brightness, ensuring that images remain lifelike and clear, regardless of the scene's lighting conditions.

The KV-27HS420 comes equipped with a built-in 3-line digital comb filter, a significant innovation that enhances picture clarity by reducing visual artifacts and improving color fidelity. This filter ensures that the television can handle various video sources, from standard broadcasts to high-quality DVDs, with exceptional performance across the board.

Connectivity is another strong point for the KV-27HS420. It includes multiple inputs, allowing users to connect a variety of devices, such as DVD players, video game consoles, and cable boxes. The set features both RCA and S-Video inputs, providing flexibility for different user needs. Additionally, the inclusion of an RF input further broadens the television's compatibility with a range of antenna and cable services.

When it comes to sound, the KV-27HS420 does not fall short. The television features a robust audio system with stereo sound output, ensuring that viewers enjoy a comprehensive aural experience that complements the stunning visuals. Advanced audio technologies help to create depth and clarity in sound, making it suitable for everything from watching movies to enjoying music.

Design-wise, the KV-27HS420 boasts a sleek and compact appearance that easily fits into various living room arrangements. Its stylish black cabinet and anti-glare screen were particularly well-received, as they contribute to a more enjoyable viewing experience by minimizing reflections and distractions.

Overall, the Sony KV-27HS420 remains a testament to the legacy of CRT televisions, combining established technology with user-friendly features. Its image quality, connectivity options, and audio performance make it a worthy consideration for anyone seeking a classic television experience in the digital age. While modern flat-screen TVs have overtaken CRT models in popularity, the craftsmanship and engineering behind the KV-27HS420 continue to be admired by vintage tech enthusiasts and collectors alike.
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