Symptom

Good picture

Solutions

• Press ü + to increase the volume level.

Possible cause

• The volume level is too low.

Troubleshooting (continued)

No sound

• Press Û to cancel the muting.

• The sound is muted.

Symptom

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

Solutions

Possible cause

• The channel carries no Teletext broadcast.

––

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.

Teletext display is incomplete

(snowy picture or double images).

Picture slant

• 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 10)

• Press SELECT until “PIC ROTATION”

appears on the screen, then press + or –

• 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.

– 41

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

• Broadcast signals are

reflected by nearby

mountains or buildings.

• The antenna direction is

inappropriate.

• Use of a booster is

inappropriate.

• The color level setting is

Lines moving across the TV screen.

to align the picture to the TV screen.

(page 12)

• Use the fine tuning (FINE) function.

(page 10)

• There is interference from

external sources, e.g.,

heavy machineries, nearby

broadcast station.

Abnormal color patches

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

system setting (usually set this to

“AUTO”). (page 10).

• Adjust the antenna direction. Contact a

Sony dealer for advice.

• Keep external speakers or other

electrical equipment away from the TV.

too low.

• The color system setting is

inappropriate.

• The antenna direction is

inapproriate.

• The magnetic disturbance

from external speakers or

The uindicator on your • Contact your nearest Sony service

TV flashes red a number center. (page 19) of times between

3-second intervals.

TV cabinet creaks.

Your TV may need service.

Changes in room temperature sometimes make the TV cabinet expand or contract, making a noise. This does not indicate a malfunction.

KV

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.

other equipment, or the

direction of the earth’s

magnetic field may affect

the TV.

A “boom” sound is heard

 

• The TV’s demagnetizing

when the TV is turned on.

function is working. This

 

does not indicate a

 

 

 

 

malfunction.

-

continued

Additional Information 21

22Additional Information

PF21M70/TF21M61/TF21M90/TF21P11 RM-952

Page 41
Image 41
Sony KV-PF21M70, KV-TF21P11, KV-TF21M61 service manual PF21M70/TF21M61/TF21M90/TF21P11 RM-952

KV-PF21M70, KV-TF21P11, KV-TF21M61 specifications

The Sony KV-TF21M61, KV-TF21P11, and KV-PF21M70 are iconic television models that hold a significant place in the history of consumer electronics. These CRT (cathode-ray tube) televisions were introduced during a time when home entertainment was evolving, showcasing Sony's dedication to delivering high-quality viewing experiences.

The KV-TF21M61 is known for its compact design and impressive image quality, featuring a 21-inch screen size that was perfect for small to medium-sized rooms. Equipped with Sony's advanced Trinitron technology, it delivers vibrant colors and sharp images, making it a favorite among viewers who appreciate clarity and detail. The television features a built-in tuner, allowing users to easily access various TV channels without the need for an external set-top box. The design includes multiple connectivity options, including standard composite inputs, offering versatility for connecting gaming consoles and DVD players.

Similarly, the KV-TF21P11 model carries forward Sony's commitment to exceptional picture quality. With anti-glare screens and enhanced viewing angles, this model ensures that viewers enjoy clear images from different positions in the room. Its user-friendly interface allows easy navigation through channel selections and picture adjustments. The model also includes stereo speakers, providing a richer audio experience that complements the stunning visuals.

On the other hand, the KV-PF21M70 is seen as an evolution of these models, featuring a larger display while retaining the core technological advancements of its predecessors. This unit incorporates Sony's Picture-in-Picture (PiP) feature, allowing users to watch two channels simultaneously or view external input while keeping an eye on live TV. This functionality enhances versatility and user engagement, making it a practical choice for avid viewers who don’t want to miss out on their favorite programs.

All three models are equipped with various sound enhancement features, including bass and treble controls, ensuring users can tailor their audio experience according to their preferences. The robust build quality and reliability typical of Sony products ensure that these televisions remain cherished items even as technology progresses and newer formats emerge.

Overall, the KV-TF21M61, KV-TF21P11, and KV-PF21M70 are more than just old CRT televisions; they represent a significant era in television technology, characterized by brilliant visuals, sound quality, and functional designs that laid the groundwork for modern home entertainment systems. These models remain a testament to Sony's pioneering efforts in the realm of consumer electronics.