Sony TRINITRON KV-SW21M80 Service Manual page 67

I
Troubleshooting
If you find any problem while viewing your TV, you can either use the
"Factory Settings" function or check the Troubleshooting guide below. If the
problem persists, contact your Sony dealer.
"Factory Settings" function
Press the WEGA GATE button. Choose "Settings" and go to "Setup" (
menu. From "Setup" menu, select "Factory Settings". Then select "Yes" and
press . Your TV will go blank for a few seconds, then the "Initial Setup"
menu will appear. Your TV will be set to factory settings, but certain problems
may be solved.
Symptom
Snowy picture, • Check the antenna cable and connection on the TV, VCR and at the wall
noisy sound
• Check the antenna setup. Contact a Sony dealer for advice.
• Display the "Channel Setup" menu and select "Manual Program" to preset
• Display the "Channel Setup" menu and set the "Signal Booster" to "Auto"
• Try using an external booster.
Distorted picture,
• Turn off or disconnect the external booster if it is in use.
noisy sound
• Display the "Channel Setup" menu and set the "Signal Booster" to "Off"
Good picture,
• Display the "Channel Setup" menu and select the appropriate
noisy sound
• Check the power cord, antenna and VCR connections (see H).
No picture,
no sound
• Press
• Press ! (main power) on the TV to turn off the TV for about five seconds,
• Press 2 + to increase the volume level (see J).
Good picture,
no sound
• Press
Dotted lines or
• Do not use a hair dryer or other equipment near the TV.
stripes
• Check the antenna setup. Contact a Sony dealer for advice.
Double images
• Use a highly directional antenna.
or "ghosts"
• Use the fine tuning ("Fine") function (see O).
• Check the antenna setup. Contact a Sony dealer for advice.
• Turn off or disconnect the external booster if it is in use.
• Display the "Picture" menu and select "Custom" from "Picture Mode", then
No color
• Display the "Setup" menu and check the "Color System" setting
• Check the antenna setup. Contact a Sony dealer for advice.
(see H).
the channel again (see O).
from "Manual Program" (see O).
from "Manual Program" (see O).
"TV System" from "Manual Program" (see O).
(power) to turn on the TV (see J).
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then turn it on again (see F).
to cancel the muting (see J).
adjust the "Color" level from "Picture Adjustment" (see M).
(usually set this to "Auto") (see P).
Solutions
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