Troubleshooting (continued)

SymptomSolutions

Stereo broadcast sound • Check the antenna cable and connection

switches on and off or is on the TV, VCR and on the wall. (page 4) distorted.

Possible cause

• Connection is loose or the

cable is damaged.

Identifying parts and controls

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

Front panel

KV-PF21M70/TF21M61/TF21M90/TF21P11

– 30 –

or

The sound switches between monaural and stereo frequently.

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

(KV-TF21M61 only)

Teletext display is incomplete

(snowy picture or double images).

(KV-TF21M61 only)

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.

• 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.

RM-952

Picture slant

Lines moving across the TV screen.

The uindicator on your

TV flashes red a number of times between

3-second intervals.

Try using a booster.

Use the fine tuning (FINE) function. (page 10)

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

(page 12)

Use the fine tuning (FINE) function. (page 10)

Contact your nearest Sony service center. (page 21)

• 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.

2

1U(main power) button (5)

2PROGR +/– (program) buttons (11)

3ü+/– (volume) buttons (11)

4É(TV/video) button (12)

5AUTO PROGR (program) button (5)

TV cabinet creaks.

A “boom” sound is heard

when the TV is turned on.

• Changes in room

temperature sometimes

make the TV cabinet

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.

6SELECT button (9)

72(headphone) jack

continued

26Additional Information

Additional Information 27

Page 30
Image 30
Sony KV-TF21P11, KV-TF21M61 service manual Front panel KV-PF21M70/TF21M61/TF21M90/TF21P11, Select button 2headphone jack

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.