Troubleshooting - Polaroid 43T7U User Manual

Troubleshooting

If the device performance fails, check whether the detected problem is in the following table.
If your device still fails, contact customer service.
SYMPTOM
TV – No signal input
connected, loose or
disconnected.
Remote Control
Distance is short,
no control.
TV
Display is faint.
TV
Display image does
not fill the screen.
TV
Unable to operate
the TV
Static and sound
noise.
TV image is better,
but has noise .
No image. No sound.
TV image has
stripes.
TV image has
shadows.
TV has no sound.
CAUTION: Do not allow your TV screen to display the same image for an extended period of time.
Please set up a screen protection procedure. If a high-contrast picture remains on the TV screen for
a long time, this picture could burn the image onto the screen. Usually the burnt image will disappear
gradually when you turn off the TV's power. However, this damage cannot be repaired.
POSSIBLE CAUSE
Signal cable is loose or not
connected.
Receiver of remote control
is covered.
The battery energy of the
remote control is too low.
Adjustment is incorrect.
Display mode is incorrect.
Adjustment is incorrect.
Display mode is incorrect.
Exterior influence, for
example lighting, static
electricity and so on, which
might disturb the normal
operation of the TV.
Antenna cable connector is
loose, cable is damaged.
Antenna cable type is not
correct.
Direction or position of
antenna is incorrect.
Signal is weak.
Antenna cable connector
is loose, cable is damaged.
Power plug is loose,
power cord does not
connect well.
Signal is exposed to
interference, such as a car,
neon light, electric blower,
etc.
TV signal is reflected by
valley or building.
Direction of antenna is incorrect.
Volume setting is too low.
Sound is muted.
27
REMEDY
Ensure signal cable is not loose or
disconnected. Reattach and try again.
Ensure the remote receiver is not
obstructed.
Change the batteries.
Use auto-adjustment function.
Use recommended mode.
Use auto-adjustment function.
Enter PICTURE to adjust the
horizontal and vertical position.
Use recommended mode.
Press the button to tum off
electrical source, then press the
button to turn on the TV again
after 1-2 minutes.
Check the antenna cable
connector plug for secure
connection and any damage.
Check antenna cable type (VHF/
UHF).
Adjust the direction or position of
antenna.
Attempt to use signal amplifier.
Check the antenna cable
connector plug for secure
connection and any damage.
Check to ensure power cord is
connected.
Press POWER on panel or
remote control.
Check if the button is on.
Do not use an electric blower
around unit.
Adjust antenna cable direction
to reduce interference.
Use a high-directional antenna.
Adjust direction of the antenna.
Adjust volume to proper level.
Press MUTE to deactivate mute.