Troubleshooting

Troubleshooting (continued)

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

If you find any problem while viewing your TV, please check the following guide. If any problem persists, contact your Sony dealer .

Symptom

Good picture

Solutions

• Press ü + to increase the volume level.

Possible cause

• The volume level is too low.

RM-952

Symptom

Solutions

Possible cause

• Press Û to cancel the muting.

• The sound is muted.

Snowy picture

Noisy sound

Distorted picture

• Check the antenna cable and connection

on the TV, VCR and on the wall. (page 4)

• Press SELECT until “MANUAL

PROGRAM” appears on the screen then

preset the channel again. (page 9)

• Check the antenna type (VHF/UHF).

Contact a Sony dealer for advice.

• Adjust the antenna direction. Contact a

Sony dealer for advice.

• Try using a booster.

• Turn off or disconnect the booster if it is

• Connection is loose or the

cable is damaged.

• Channel presetting is

inappropriate or

incomplete.

• The antenna type is

inappropriate.

• The antenna direction is

inappropriate.

• Signal transmission is low.

• Broadcast signals are too

No sound

Dotted lines or stripes

Do not use a hair dryer or other equipment near the TV.

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

There is local interference from cars, neon signs, hair dryers, power generators, etc.

RM-915 RM-952

– 18 –

Noisy sound

Good picture

in use.

If the sound of all the channels are noisy, press AUTO PROGR to preset the channels again. (page 8)

strong.

Channel presetting is inappropriate or incomplete.

Double images or “ghosts”

No color

• Use a highly directional antenna.

• Use the fine tuning (FINE) function.

(page 10)

• Adjust the antenna direction. Contact a

Sony dealer for advice.

• Turn off or disconnect the booster if it is

in use.

• Press SELECT until “COLOR” appears

on the screen, then press + or – to adjust

the color level. (page 15)

• Press SELECT until “COL SYS ” appears

on the screen, then check the color

• Broadcast signals are

reflected by nearby

mountains or buildings.

• The antenna direction is

inapproprite.

• Use of a booster is

inappropriate.

• The color level setting is

too low.

• The color system setting is

inappropriate.

Noisy sound

No picture

No sound

Check the power cord, antenna and the VCR connections.

Press u (power).

Press U (main power) on the TV to turn off the TV for about five seconds, then turn it on again.

The power cord, antenna or VCR is not connected.

The TV is not turned on.

continued

Additional Information

Abnormal color patches

system setting (usually set this to

“AUTO”). (page 10).

• Adjust the antenna direction. Contact a

Sony dealer for advice.

• Locate the TV away from external

speakers or other equipment. Do not

move the TV while the TV is turned on.

Press U (main power) on the TV to turn

off the TV for about five minutes, then

turn it on again.

• The antenna direction is

inapproriate.

• The magnetic disturbance

from external speakers or

other equipment, or the

direction of the earth’s

magnetic field may affect

the TV.

Additional Information 19

20Additional Information

Page 18
Image 18
Sony KV-XF21N90, KV-HF51P50, KV-XF51M65, KV-XF21M83 service manual Troubleshooting

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.