KV-BT21M90 - Sony TV Service Manual (repair manual). Page 93

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23
Additional Information
Sony KV-BT21M90 Group A30 (
GB
,CT,CS)_4-099-611-11 (1)
Good morning!
Good picture
No sound
Dotted lines or
stripes
Double images or
“ghosts”
No color
Picture slant
Possible cause
Symptom
Solutions
Page
• The volume level is too
low.
• The sound is muted.
• There is local
interference from cars,
neon signs, hair dryers,
power generators, etc.
• Broadcast signals are
reflected by nearby
mountains or
buildings.
• The antenna setup is
inappropriate.
• Use of a booster is
inappropriate.
• The color level setting
is too low.
• The color system
setting is
inappropriate.
• The antenna setup is
inappropriate.
• The magnetic
disturbance from
external speakers or
other equipment, or
the direction of the
earth’s magnetic field
may affect the TV.
• Press 2 + to increase the volume level.
• Press 
 to cancel the muting.
• Do not use a hair dryer or other
equipment near the TV.
• Check the antenna setup. Contact a Sony
dealer for advice.
• Use a highly directional antenna.
• Use the fine tuning (“Fine”) function.
• Check the antenna setup. Contact a Sony
dealer for advice.
• Turn off or disconnect the booster if it is in
use.
• Display the “Picture” menu and select
“Personal” of “Mode”, then adjust the
“Color” level in “Picture Adjustment”.
• Display the “Setup” menu and check the
“Color System” setting (usually set this to
“Auto”).
• Check the antenna setup. Contact a Sony
dealer for advice.
• Keep external speakers or other electrical
equipment away from the TV.
• Display the “Setup” menu and adjust
“Picture Rotation” so that the picture
position is optimal.
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01GB08ADV-HK.p65
28/8/03, 5:58 PM
23
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