Troubleshooting - Grundig VISION 7 47-7850 User Manual

Problem
Screen lit (snow), but no station
Insufficient contrast in picture
Picture and/or sound distorted
Ghosting, reflection
No colour
Picture but no sound
Teletext impaired or absent
Remote control does not work
Picture is dark in PC mode
34
INFORMATION

Troubleshooting

If the remedies given below do not work, please consult an autho-
rised GRUNDIG dealer. Please bear in mind that malfunctions can
also be caused by external devices such as video recorders or satel-
lite receivers.
Possible cause
Antenna cable
No TV station programmed
Picture settings shifted
Problem at station
Interference from other devices
Channel setting
Antenna
Colour intensity too low
TV system setting (if setting
option is available)
Problem at station
Volume set to minimum
Problem at station
TV station (no teletext available)
Station signal too weak
No optical connection
Remote control batteries
Operating mode undefined
Incorrect setting for picture
resolution and picture frequency
on the PC
Note:
This is a Class A product. During operation the device can cause
radio interference. In this case the user may have to remedy this.
Please contact your specialist dealer.
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Remedy
Antenna cable connected?
Start a station search
Adjust the brightness,
contrast or colour setting
Test with a different station
Adjust the position of the device
Automatic or manual
tuning/fine tuning
Have antenna cable or system
checked
Turn up the colour
Select the correct colour
standard
Test with a different station
Turn up or switch on the volume
Test with a different station
Check with other TV stations
Fine-tune or check the antenna
Point remote control at television
Check the batteries, change if
necessary
Switch off the television with the
power button for 2 minutes
Adjust the setting on the PC
(for example, screen resolution
WUXGA 1920 x 1080, picture
frequency 60 Hz)
Technical changes and errors reserved.