Sony KV-XF21N90, KV-HF51P50, KV-XF51M65, KV-XF21M83 service manual Troubleshooting

Page 18

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

Image 18
Contents Trinitron Color TV Specifications KV-HF51P50 KV-HF51P50/XF21M80/XF21M83/XF21N90/XF51M65Specifications KV-XF21M80/XF21M83/XF51M65 3D WooferSpecifications KV-XF21N90 Disassembly Table of ContentsDiagrams SET-UP AdjustmentsSelf Diagnostic Function Diagnostic Test IndicatorsDisplay of STANDBY/TIMER Light Flash Count Stopping the STANDBY/TIMER FlashSELF-DIAGNOSTIC Screen Display Handling of SELF-DIAGNOSTIC Screen DisplaySELF-DIAGNOSTIC Circuit +BÊovercurrentÊ»OCP¼Getting Started Connect the antennaConnecting optional components Preset the channels automaticallyInsert the batteries Into the remote Presetting channels Presetting channels automaticallySecuring the TV Presetting channels manually Skipping program numbersWatching the TV Additional tasksChanging the on-screen display language Setting the Wake Up timer Customizing the picture and soundChanging the favorite channel setting Adjusting the picture and sound settingsSelecting the surround mode Viewing your favorite channelsBlocking the channels Self-diagnosis functionTroubleshooting TroubleshootingIdentifying parts and controls Front panelRemote Control Section Connecting the 3D Woofer KV-XF21M83/XF51M65 onlyConnecting a camcorder/video game equipment Using the É video input jacksPresetting channels manually KV- RM-952 RM-952 Using Your New TVRed, press u on the remote Changing the on-screen display language KV-XF21M80ME Setting the Sleep timer Press Until Desired period of time AppearsKV- RM-952 RM Selecting a stereo Or bilingualProgram Viewing Teletext Displaying TeletextUsing Fastext Additional Teletext tasksPress A/B H until a better sound is RM-952 RM-915 RM-952 Remote Control HF51 Chassis Assy RemovalRear Cover Removal Bracket Removal XF21/XF51 HF51 Service PositionReplacement of Parts XF21/XF51Terminal Bracket Removal Degauss Coil Removal Picture Tube Removal∙ Removal of ANODE-CAP ∙ Removing Procedures ∙ HOW to Handle AN ANODE-CAPSection SET-UP Adjustments Beam LandingConvergence Horizontal and Vertical Static ConvergenceYCH TLV Focus Adjustment G2 Screen and White Balance AdjustmentsAdjustments with Commander RM-952 RM-915Adjustment Method Adjustment Item Table Except KV-XF21N90 Adjustment Item Table Device Functionality Name Adjustment Item Table KV-XF21N90 Not memorized not memorized not memorized not memorized T E Item Information Bell Filter Adjustment Picture Quality Adjustments SUB Color AdjustmentSUB HUE Adjustment Board Adjustment After IC003 Memory ReplacementPicture Distortion Adjustment Item Number 00 0BMemo MSP3415 MAIN. Tuvif withKV-XF51M65 only IC203Section Exploded View 105 106 107108 109 110 Chassis for KV-HF51P50102 103 104 SemiconductorsKV-HF51P50 111112 113 114 115 116 Metal ChipREF. NO. Part no 117Metal CMT,MELF118 KV-XF21M80 119120 ConnectorKV-XF21M80 REF. NO. Part no Description121 Filter BLOCK, Comb DiodeDY1 122 TransistorTransistor DTC144EKA-T146 123 Transistor 2SC4927-01124 125 Metal OxideThermistor THP600 1-810-961-11 THERMISTOR, Positive Tuner KV-XF21M83/XF51M65 126KV-XF21M83/XF51M65 127128 Short KV-XF51M65 only 129Jack BLOCK, PIN 6P Short KV-XF21M83 only130 131 132 Thermistor KV-XF21M83/XF51M65 a KV-XF21N90133 TUNER, FSS BTF-LG433 KV-XF21M83KV-XF21N90 134KV-XF21N90 135Diode UDZS-TE17-5 PLUG, Connector 4P Composition Circuit Block136 Diode UDZS-TE17-9.1B137 138 139 140 141 H4 KV-XF21M83/XF51M65 only F C5 142H4 KV-XF21M83/XF51M65 J3/K1KV-XF21M83/XF51M65 only143 Diode RD3.3M-B2 V1KV-XF51M65 only144 Diode RD5.6M-B2Transistor 2SA1837 V1KV-XF51M65 only VM1145 Transistor 2SC4793146 Remote Commander 147Sony Corporation 148

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.