User Manual TCL 49C6US Series C 49 inch C6 QUHD Android TV

Make sure that they are connected to an external/Outdoor
antenna. If they are using rabbit ears antenna, it may not be
good enough for reception
Make sure that the TV antenna socket is connected to the wall
antenna outlet
Once step 1 and step 2 have been checked, ask the customer to
do a scan of off the channels. If they receive channels, problem
solved. If not, continue to step 4
Try another antenna cable, it may be broken.
Go outside and check the position of the TV antenna. Compare
it to the neighbour's antenna; it should be pointing in the same
direction. It must point to the transmission tower. If it is pointing
in the wrong direction, they may need to call an antenna installer
to correct. If it is correct, continue to step 6
If the home has multiple antenna points, try the TV at another
point. If the TV works at another point, then the problem may be
only at the original point, and the customer will need to call an
antenna installer to correct.
Finally, check if there are any power supplies or adaptors near
the TV. Turn them off, and see if one may cause the TV not to
tune.
If all of the above have been checked, and the customer still
can't tune channels, they will need to arrange a service call on
the TV

Make sure that mains power is connected, and ask if they see at
stand-by light
If they do see a standby light, tell them to check the batteries in
the remote, or try the power button or ch +/ch- button on the
side/bottom of the TV
Depending on the model, the TV may have a mains power
switch. Make sure the mains power switch is turned on
If the TV standby light goes of when they press power, can they
hear sound? If they can, ask the customer to press the MENU
button on the remote. If they see the menu, there may be a
broadcast problem. If they cannot see a menu, they may need to
arrange a service call on the TV
Ask is the customer can see a glow in the screen, even if there
is no menu. They can confirm this by getting them to give the
screen a very very gentle tap. If they see no glow, then they will
need to arrange a service call
Finally, ask if the customer has Foxtel (pay TV in Australia). If
they have accidently pressed the AV button on the Foxtel
remote, the screen will be black. Ask that the "FOXTEL" button
on the Foxtel remote

Check the HDMI input number on the back of the TV (where the
cable is connected), and make sure that it corresponds the
selected input on the TV
If the customer has another HDMI cable, ask that they try
another cable
Make sure that the device (Blu Ray/Media Player/etc) is
powered on, and correct settings are used
If all of the above fail, a service call may be required