Troubleshooting - Sony BRAVIA KDL-40Z4100 Operating Instructions Manual

Troubleshooting
If you have questions, service needs, or require
technical assistance related to the use of your
Sony TV. please visit our website or call one of
the following numbers:
http://www.sony.com/tvsupport
1-800-222-SONY(7669) for US Support
1-877-899-SONY(7669) for Canadian Support
No picture
No picture • Check the Power Saving settings (see page 53).
Cannot receive any channels • Make sure the power cord is connected securely.
• Turn on the power of the TV.
• Check cable/antenna connections.
• Make sure the Signal Type setting is correct for your TV signal source.
TV is locked to one channel • Perform Auto
Program
to add receivable channels that are not present in the
TV's memory (see pages 16 and 47).
Cannot receive or select • Perform Auto
Program
to add receivable channels that are not present in the
channels TV's memory (see pages 16 and 47).
• To receive or select cable channels, make sure that
Signal Type
in the
Channel settings is set to Cable (see page 47). To receive or select UHF
channels over an antenna, make sure Signal Type is set to Antenna.
The TV turns off • Check if Sleep Timer is activated, or confirnl the Duration setting of Timer
automatically (see page 41).
• Check PC Power
Management
in General
Setup
settings (see page 53).
No picture from some video • Check the connection between the optional video equipment and the TV.
sources • Press INPUT on the remote control (see page 23).
• Press HOME on the remote control. Select your desired input from the
External Inputs list.
Poor picture
Picture quality not as good as • Picture quality depends on the signal content. See Quick Setup Guide
viewed at the store (supplied) to display the best possible picture for that signal.
Broadcast HD formats have • Content and signal quality are regulated by the signal provider. Many HD
poor quality channels and content are actually upscaled versions of standard-definition
broadcasts. The picture is affected by the quality of the signal received, which
varies between channel and program.
• Confirm the picture quality by selecting
Signal Diagnostics
in the Product
Support
settings (page 41). Then select Sample
Image (or
Additional
Information first). An HD image will display on the screen to confirm routine
panel operation. If your normal picture quality is worse than this sample image,
it is most likely due to the signal provided by the broadcaster.
Double images or ghosts • Check cable/antenna connections.
• Check the antenna location and direction.
• Set the
Motion Enhancer
to
Standard or Off
(see page 43).
Only snow and noise appear • Check if the antenna is broken or bent.
on the screen • Check if the antenna has reached the end of its serviceable life. (3-5 years in
normal use, 1-2 years at the seaside.)
Dotted lines or stripes • Keep the TV away from noise sources such as cars, motorcycles, or hair-dryers.
• If using 300 ohm twin lead, move the excess lead away from the TV or try using
75 ohm coaxial cable instead.
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