Troubleshooting - Sony KLV-B20G10 Service Manual

Troubleshooting

Check whether the 1/
When it is flashing
The self-diagnosis function is activated.
1 Measure how long the 1/
For example, the indicator flashes for two seconds, stops flashing for one second, and flashes for two seconds.
2
Press ?/1 on the TV (top side) to switch it off, disconnect the AC power cord, and inform your dealer
or Sony service center of how the indicator flashes (duration and interval).
When it is not flashing
1 Check the items in the tables, below.
2 If the problem still persists, have your TV serviced by qualified service personnel.
Picture
Problem
No picture (screen is dark) and
no sound
No picture or no menu
information from equipment
connected to the video input
jack
Distorted picture
Double images or ghosting
Snowy picture and noisy sound
Only snow and noise appear
on the screen
(standby/sleep timer) indicator is flashing in red.
(standby/sleep timer) indicator flashes and stops flashing.
Cause/Remedy
• Check the power cord, antenna, and VCR connection.
• The TV is not turned on. Press
• If the 1/ (standby/sleep timer) indicator lights up in red, press TV "/1.
• Check that the optional equipment is on and press
the correct input symbol is displayed on the screen.
• Check the connection between the optional equipment and the TV.
• Check if any connected optional equipment is installed in front of the TV or
beside the TV. When installing optional equipment, leave some space
between the optional equipment and the TV.
• When changing programs or selecting Text, turn off any equipment
connected to the video input jack on the rear of the TV.
• Broadcast signals are too strong. Turn off or disconnect the booster if it is in
use.
• Check antenna/cable connections.
• Check the antenna location and direction. Contact a Sony dealer for advice.
• Broadcast signals are reflected by nearby mountains or building. Use the
fine tuning ("Fine) function (page 27). Otherwise, use a highly direction
antenna.
• Use of a booster is inappropriate. Turn off or disconnect the booster if it is in
use.
• The antenna connection is loose or the antenna cable is damaged. Check the
cable and connection on the TV, VCR, and on the wall (page 12).
• Channel presetting is inappropriate or incomplete. Perform "Manual
Program" in the "Set Up" menu to preset the channel again (page 26).
• The antenna type is inappropriate. Check the antenna type (VHF/UHF).
Contact a Sony dealer for advice.
• The antenna direction needs adjustment. Adjust the antenna direction.
Contact a Sony dealer for advice.
• Signal transmission is low. Try using a booster.
• Check if the antenna is broken or bent.
• Check if the antenna has reached the end of its serviceable life (three to five
years in normal use, one to two years at the seaside).
? 1
/ on the TV (top side).
/ repeatedly until
Continued
31
GB