55
9
Technical Information and Help
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 SOUND 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, 2 ,3 or 4.
Audio noise
• Keep the RF coaxial cable away from other connected cables.
Password
Lost password
• Select the Set Password setting in the LOCK menu, then enter the following master
password “4725”. The master password clears your previous password and allows
you to enter a new password.
There is a problem in PC mode.
The signal is out of range (Invalid
format)
• Adjust the resolution, horizontal frequency, or vertical frequency.
Vertical bar or stripe on background
& horizontal noise & incorrect
position
• Use Auto configure or adjust clock, phase, or H/V position.
Screen colour is unstable or shows a
single colour
• Check the signal cable.
• Reinstall the PC video card.
Smart or Freeview Play TV isn't working
Can't access Smart TV or Freeview
Play
• Check you are connected to your router and that the router is switch on and
working.
• Your router may be to far away from your TV, move your router closer to your TV.
• Try connecting your TV to your router using an ethernet cable.
Smart TV is very slow to activate
• Your internet speed may be very slow, check your speed with your internet provider.
Some of the Apps have disappeared
or changed from Smart TV
• The Apps on your TV may have been updated or even removed this can happen at
any time. Its normal and not a fault of your TV.
FAQs (Frequently Asked Questions)
Why have I lost some / all of my
channels?
• It happens sometimes if you have a weak signal. Usually it just means you’ll need to
re-tune your TV. Don’t worry, it is easy to do. And once you’ve done it, you should
get all the Freeview channels available to you. If problems persist you may need to
get your aerial checked. Talk to your retailer or contact your local aerial installer.
Why do I get ‘blocking’ on my digital
picture?
• In most cases, blocking is caused by a reception problem – either the signal is too
weak or there is some kind of interference. Talk to your retailer or contact your local
aerial installer.
• Blocking can also be caused by a digital signal that is too strong. If you are still
experiencing blocking and the signal is strong, consult your local aerial installer
for advice.
Can I watch Freeview using a
portable set-top aerial?
• Some, but only a few, homes may be able to use a set top aerial. However, for a
much better reception, we strongly recommend that you use a rooftop aerial.
• If you do not have access to a rooftop aerial – for example, if you rent a flat and
the aerial is the responsibility of your landlord, or if you’re using a second TV in
the bedroom and don’t want the hassle and expense of using extension cables,
a set top aerial may be your only option.
What type of aerial do I need?
• If you are installing a new aerial, we recommend a wideband rooftop aerial rather
than a loft aerial. Loft aerials generally receive a weaker digital signal and are more
likely to get interference from other electrical devices at home. We suggest you
have an aerial survey done before getting an aerial upgrade.
• Talk to your retailer or contact your local aerial installer.
JVC 55' LED Smart 4K HDR TV LT-55C888 Manual.indd 55
22/02/2018 09:43
