– 33 –

Symptom

Stereo broadcast sound switches on and off or is distorted.

or

The sound switches between monaural and stereo frequently. (KV-XF51M65 only)

“100” appears on the top of the screen and there is no Teletext display.

(KV-XF51M65 only)

Teletext display is incomplete

(snowy picture or double images).

(KV-XF51M65 only)

Picture slant

Lines moving across the TV screen.

The uindicator on your

TV flashes red a number of times between

3-second intervals.

TV cabinet creaks.

Solutions

Check the antenna cable and connection on the TV, VCR and on the wall. (page 4)

Adjust the antenna direction. Contact a Sony dealer for advice.

Press A/B until a better sound is heard.

––

Check the antenna cable and connection on the TV, VCR, and at the wall. (page 4)

Adjust the antenna direction. Contact a Sony dealer for advice.

Try using a booster.

Use the fine tuning (FINE) function. (page 11)

Press SELECT until “PIC ROTATION” appears on the screen, then press + or – to align the picture to the TV screen.

(page 13)

Use the fine tuning (FINE) function. (page 11)

Contact your nearest Sony service center. (page 23)

Possible cause

• Connection is loose or the

cable is damaged.

• The antenna direction is

inappropriate.

• Broadcast signal has a

transmission problem.

• The channel carries no

Teletext broadcast.

• Connection is loose or the

cable is damaged.

• The antenna direction is

inappropriate.

• Signal transmission is too

low.

• The terrestrial magnetism

affects your TV set.

• There is interference from

external sources, e.g.,

heavy machineries, nearby

broadcast station.

• Your TV may need service.

• Changes in room

temperature sometimes

make the TV cabinet

Identifying parts and controls

Refer to the pages indicated in parentheses ( ) for details.

Front panel

2

ONE-PUSH AUTOMATIC PROGRAMMING

1U(main power) button (12)

2PROGR +/– (program) buttons (12)

3ü+/– (volume) buttons (12)

4É(TV/video) button (13)

5AUTO PROGR (program) button (5)

6SELECT button (10)

72(headphone) jack

KV-HF51P50/XF21M80/XF21M83/XF21N90/XF51M65 RM-952 RM-952

A “boom” sound is heard when the TV is turned on.

26Additional Information

expand or contract,

making a noise. This does

not indicate a malfunction.

• The TV’s demagnetizing

function is working. This

does not indicate a

malfunction.

Additional Information 25

RM-952 RM-915 RM-952

Page 33
Image 33
Sony KV-XF51M65, KV-HF51P50, KV-XF21N90, KV-XF21M83 service manual RM-952 RM-915 RM-952

KV-XF21N90, KV-XF51M65, KV-XF21M83, KV-HF51P50 specifications

The Sony KV-HF51P50, KV-XF21M83, KV-XF51M65, and KV-XF21N90 are notable models within Sony's television lineup, showcasing a blend of pioneering technology and unique characteristics that cater to diverse viewer needs.

The Sony KV-HF51P50, featuring a 51-inch screen, is recognized for its exceptional display quality, leveraging Sony's Trinitron technology, which enhances color reproduction and brightness. This model supports a 4:3 aspect ratio, making it ideal for traditional television content. The KV-HF51P50 also includes a built-in comb filter that significantly improves image clarity by reducing cross-color artifacts. Additional features such as multiple input options and enhanced sound technology provide versatility and an immersive viewing experience.

The KV-XF21M83, on the other hand, introduces the Flat CRT technology, which minimizes the distortion common in conventional curved CRT displays. With a 21-inch screen, this model is a compact option ideal for smaller living spaces. One of its standout features is the advanced picture circuitry that ensures vibrant colors and sharp images. This television model also supports a variety of input connections, allowing users to easily connect gaming consoles and DVD players, and making it a versatile choice for entertainment.

In the larger category, the KV-XF51M65 offers a generous 51-inch screen size and incorporates numerous advancements, such as Sony's Dynamically Adaptive Picture Control. This technology constantly analyzes the incoming signal and adjusts the picture for optimal brightness and contrast, ensuring a consistently excellent viewing experience. The KV-XF51M65 also includes SRS Surround Sound technology, which creates an immersive audio environment to complement the stunning visuals.

Lastly, the KV-XF21N90, featuring a 21-inch display, stands out with its stylish design and reliable performance. This model focuses on user-friendly features, including an easy-to-navigate on-screen menu and customizable settings for picture and sound. Its flat-screen design not only contributes to aesthetics but also reduces glare, making it easier to watch in bright rooms. The durability and longevity of the KV-XF21N90 ensure it remains a staple in homes for years.

In summary, the Sony KV-HF51P50, KV-XF21M83, KV-XF51M65, and KV-XF21N90 collectively showcase Sony's commitment to quality and innovation in television technology. Each model offers distinct features that cater to a range of preferences, ensuring a top-notch viewing experience for all users.