RCA RNSMU5036-B, Instruction Manual, Page: 31 / 64

If your TV does not operate normally or cannot be turned on, please check the following
troubleshooting questions. Remember also to check any other connected electronic device,
such as a DVD or Blu-ray player to pinpoint the problem. If the TV still fails to operate
normally, please contact technical support.
The TV does not operate properly
The TV does not respond
when pressing any buttons
• The TV may freeze up during use. Disconnect the power cord from
the power socket for a few minutes. Reconnect the power cord and
try to operate it again as usual.
TV cannot be switched on
• Check that the TV is connected to the power supply.
• Make sure all connected AV devices are switched off before switching
on your TV.
The remote control does not
work
• Check to see if there are any objects between the TV and the remote
control causing an obstruction. Ensure that you are pointing the
remote control directly at the TV.
• Ensure that the batteries are installed with the correct polarity (+ to +,
- to -).
• Install new batteries.
Power is suddenly turned off
• Check the power of the TV. The power supply maybe interrupted.
• Check if the sleep timer is set.
• Check whether the Auto Standby is activated.
The video function does not work
No picture & no sound
• Check whether the TV is switched on.
• Try another channel. The problem may be caused by the broadcaster.
Picture appears slowly after
switching on
• This is normal; the image is muted during the TV startup process.
Please contact your service centre if the picture has not appeared
after 5 minutes.
No or poor color or poor
picture
• Adjust the settings in the Picture menu.
• Try another channel. The problem may be caused by the broadcaster.
• Check if video cables are connected properly.
Horizontal/Vertical bar or
picture shaking
• Check for local interference such as an electrical appliance or power
tool.
Poor reception on some
channels
• The station or cable channel may be experiencing problems; tune to
another station.
• Station signal may be weak, reposition the antenna for better
reception.
• Check for sources of possible interference.
Lines or streaks in pictures • Check antenna (change the position of the antenna.)
No pictures when connecting
HDMI
• Check if the input source is HDMI1/HDMI2/HDMI3.
Pictures appear in wrong
ratio
• Adjust the Aspect Ratio settings in the SETUP menu or press the
ASPECT
button on the remote control.
The audio function does not work
Picture OK but no sound
• Press the VOL +/- buttons.
• Sound muted? Press the
MUTE
button.
• Try another channel. The problem may be caused by the broadcaster.
No output from one of the
speakers
• Adjust the Balance settings in the AUDIO menu.
Unusual sound from inside
the TV
• A change in ambient humidity or temperature may result in an unusual
noise when the TV is switched on or off and does not indicate a fault
with the TV.
No sound when connecting
HDMI
• Check if the input source is HDMI1/HDMI2/HDMI3.
Audio noise • Keep the RF coaxial cable away from the other connected cables.
TROUBLESHOOTING
29