Sony KV-G21L3 service manual Troubleshooting

Page 10

Additional Information

 

Troubleshooting

No picture

No sound

 

KV-G21L3RM-883

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If you have any problems, read this manual again and check the countermeasure for each of the symptoms listed below. If the problem persists, contact your nearest authorized service center or dealer.

Snowy picture

Noisy sound

/Check the antenna.

/Check the antenna connection on the TV and on the wall.

/Check the TV SYSTEM setting (KV-J21MF3 only).

Dotted lines or stripes

/This may be caused by local interference (e.g. cars, neon signs and hair dryers). Adjust the antenna for minimum interference.

Double images or “ghosts”

/This may be caused by reflections from nearby mountains or buildings. A highly

 

 

directional antenna may improve the picture.

No color

 

 

/Adjust the COLOR level in the on-screen

 

 

display.

 

 

/Check the COLOR SYSTEM setting.

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Additional Information

 

/Press POWER.

/Check the antenna connection.

/Check the VCR connections.

/Check the power cord connection.

/Check the standby mode.

Good picture

Noisy sound

/Check the TV SYSTEM setting (KV-J21MF3 only).

/Reduce the TREBLE level or select the

“SOFT” sound mode (KV-J21MF3 only).

Good picture

No sound

/Press VOLUME +.

/Press MUTING.

TV cabinet creaks

/Even if the picture or the sound is normal, changes in the room temperature sometimes make the TV cabinet expand or contract, making a noise. This does not indicate a malfunction.

Note on the remote commander

The supplied remote commander is used on several models of

 

the TV. If you do not find instructions for some controls that

 

are on the remote commander, that means your TV does not

 

employ the features of those controls, e.g. TEXT.

Note on the TV system

The TV SYSTEM button is not used on the KV-G21L3 model.

Notes

When you switch on the TV, you may hear the “boon” sound

 

that is caused by the demagnetization of the TV. This does not

indicate a malfunction.

The picture color may become abnormal if you change the

 

direction of your TV. To obtain the normal picture color, press

 

POWER on the TV to switch off the TV for five minutes and

 

then switch it on again.

WARNING

Do not install the appliance in a confined space, such as

a bookcase or built-in cabinet.

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Contents BG-1S Dchassis Specifications KV-G21L3Disassembly Table of ContentsCircuit Adjustments DiagramsSection GeneralConnecting an indoor antenna Connecting optional equipmentConnecting a VHF antenna or a combination VHF/UHF antenna Ohm coaxial cable roundDisabling program positions using Presetting channels manually usingButtons on the TV If you are not satisfied with the picture Remote commanderSound quality Switching back quickly to the previous Setting the Sleep TimerSetting the Wake Up Timer Turning off the TVSelecting the sound mode Selecting the picture modeTroubleshooting Rear Cover Removal Service Position DisassemblyBoard Removal Ill2-02-0-1ES29 HOW to Handle AN ANODE-CAP Picture Tube RemovalBeam Landing Section SET-UP AdjustmentsPreparation Convergence Horizontal and Vertical Static ConvergenceDynamic Convergence Adjustment Preparation Screen-corner ConvergenceFocus Adjustment G2 Screen and White Balance AdjustmentsDevice Section Self Diagnosis FunctionFlickering Frequency Section Circuit Adjustments Adjustments with CommanderAdjustment Method Adjustment Item Table No OP0 Input data are different according to models Item Number 00 HSF H ShiftMemo Diagrams Block DiagramsDiode Printed Wiring BoardTransistor Exploded View ChassisElectrical Parts List CapacitorsDescription IC TDA8395T REF.NO. Part no Solid Tuner Sony Corporation