19
ENG
Simple troubleshooting
Symptom
Cause
Solution
Snowflake speckle and
sound noise.
1. Antenna cable connector is loose,
cable is damaged.
2. Antenna cable type does not match.
3. Direction or position of antenna is
incorrect.
4. Signal is weak.
1. Check if the antenna cable connector plug is
loose and if the cable is perfect.
2. Check antenna cable type (VHF/UHF)
3. Adjust direction or position of antenna.
4. Attempt to use signal amplifier.
TV image is better, but
has noise.
Antenna cable connector is loose,
cable is damaged.
Check if the antenna cable connector plug is
loose and check cable condition.
No image. No sound.
Power plug is loose, or power supply is
not connected.
Check if the power cord is well connected.
TV image has stripes.
Signal is exposed to interference, such
as car, neon light, electric blower etc.
Do not use electric blower around the device
and adjust antenna cable direction to reduce
interference.
TV image has shadows.
1. TV signal is reflected against a valley
or building.
2. Direction of antenna is incorrect.
1. Use high directional antenna.
2. Adjust direction of antenna.
TV has no sound.
1. Volume setting is too low.
2. Sound is muted.
1. Adjust volume to proper value.
2. Press
“MUTE”
key on remote control to
eliminate mute.
Computer does not
display anything and
it does not prompt
any signal input, red
indicator LED twinkling.
Signal cable is loose or disconnected.
Check if the signal cable is loose or
disconnected, and reconnect it.
Remote control distance
is short; it loses control.
1. Receive window of remote control is
covered by objects.
2. The battery energy of remote control
is too low.
1. Remove objects obstructing the receiver
window of remote control.
2. Change batteries.
Computer display is
faint.
1. Adjustment is incorrect.
2. Display mode is incorrect.
1. Use auto-adjustment function.
2. Use recommended mode.
Computer display image
does not fill the screen.
1. Adjustment is incorrect.
2. Display mode is incorrect.
1. Use Auto-adjustment function.
2. Enter
“PICTURE”
to adjust horizontal or
vertical position.
3. Use recommended mode.
Noise Signals while
turning off.
Electrical discharge while turning off.
It is normal.
Cannot operate this
device.
Exterior influence, for example
lightning, static electricity and so on,
which can potentially interfere with
normal operation of this device.
First disconnect the power supply and reconnect
it after about 1-2 minutes, then turn on the TV
again.
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