Troubleshooting - Grundig 55 GHU 7914B User Manual

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HELP
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Troubleshooting

If the remedies given below do not work, please consult an authorised GRUNDIG dealer. Please
bear in mind that malfunctions can also be caused by external devices such as video recorders or
satellite receivers.
Problem
Screen is on (black screen),
but there is no channel
Poor picture contrast
Ghosting, reflection
No color
Picture but no sound
Remote control does not
work
Picture is dark in PC mode
Warnings about theconnec-
tion problems onthe display
Videos in video applica-
tions are lagging during
playback in wireless con-
nection
Possible cause
Antenna cable
No TV station programmed
Picture settings incorrectly set
Problem at station
Channel setting
Antenna
Color intensity at maximum
TV standard setting (if setting op-
tion is available)
Problem at station
Volume set to minimum
No optical connection
Remote control batteries
Operating condition undefined
Incorrect setting for picture resolu-
tion and picture frequency on
the PC
Network Cable or wireless USB
network device may be discon-
nected
Modem does not have Internet
connection or has problems
Internet connection speed is low.
Solution
Is the antenna cable connected?
Start a channel scan
Adjust the brightness, contrast or
color setting
Test with a different station
Automatic or manual channel
setting
Have the antenna cable or system
checked
Turn up the colour
Select the correct color standard
Test with another channel
Turn up the volume
Point the remote control at the
television set
Check the batteries, change if
necessary
Switch off the TV by pressing
the main power key (if any) or
unplugging the mains plug, and
leave it off for about 2 minutes.
Change the setting on the PC (for
example, picture resolution 1280
x 768, picture frequency 60Hz)
Check network cable or wireless
USB network device
Make sure that your modem has
Internet connection
Low Internet connection speed
is a problem that is related with
the speed of your subscription
or a failure in the Internet infra-
structure. Contact your service
provider (ISP).
ENGLISH
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