Troubleshooting – Sony KDL-70X4500 User Manual

Page 53

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Troubleshooting

Check whether the 1 (standby) indicator is flashing in red.

When the 1 (standby) indicator is flashing

The self-diagnosis function is activated.

1

Count how many times the 1 (standby) indicator flashes between each two second break.

For example, the indicator may flash three times, go off for two seconds, then flash again three
times.

2

Press 1 on the TV to turn it off, disconnect the AC power cord, and inform your dealer or Sony
service centre of how the indicator flashes (number of flashes).

When the 1 (standby) indicator is not flashing

1

Check the items in the tables below.

2

If the problem persists, have your TV serviced by qualified service personnel.

Condition

Explanation/Solution

Picture

There is no picture (screen is
dark) and no sound.

• Check the antenna/cable connection.
• Connect the TV to the AC power, and press 1 on the TV.
• If the 1 (standby) indicator lights up in red, press TV "/1.

No picture or menu
information from equipment
connected to the video input
jack appears on the screen.

• Press

to display the list of inputs, then select the desired input.

• Check the connection between the optional equipment and the TV.

Ghosting occurs, or double
images appear.

• Check the antenna/cable connection.
• Check the antenna location and direction.

Only snow and noise appear
on the screen.

• Check if the antenna is broken or bent.
• Check if the antenna has reached the end of its serviceable life (three to

five years for normal use, one to two years when used at the seaside).

The picture is distorted (dotted
lines or stripes appear).

• Keep the TV away from electrical noise sources such as cars,

motorcycles, hair-dryers, or optical equipment.

• When installing optional equipment, leave some space between the

optional equipment and the TV.

• Check the antenna/cable connection.
• Keep the antenna/cable TV cable away from other connecting cables.

There is picture or sound noise
when viewing a TV channel.

• Adjust “AFT” (Automatic Fine Tuning) to obtain better picture

reception (page 44).

Tiny black points and/or
bright points appear on the
screen.

• The screen is composed of pixels. Tiny black points and/or bright points

(pixels) on the screen do not indicate a malfunction.

The picture contours are
distorted.

• Select “Standard” or “Off” in “Motionflow” (page 39). If the symptom

still persists, change the current setting of “Cinema Drive” to other
settings (page 40).

The picture is not displayed in
colour.

• Select “Reset” (page 36).

The picture from equipment
connected to the

1 or 2

jacks is not displayed in
colour, or is displayed in
irregular colours.

• Check the connection of the

1 or 2 jacks and check if the jacks are

firmly seated in their respective jacks.

(Continued)

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