Troubleshooting; Maintenance And Cleaning - Conrad 75 20 16 Bedienungsanleitung

11. Troubleshooting

No picture, no sound
No signal
The display shows
the words
"No Input Signal"
No sound
Dark picture
Double picture
No colour
Unusual
image display
(Video input
source = VGA)

12. Maintenance and Cleaning

This product does not have any serviceable system components, except for repla-
cing the remote control batteries. Never open the system components.
Always disconnect the mains adapter before cleaning the screen.
A clean, dry and soft cloth is sufficient to clean the screen and remote control.
Clean the screen and remote control very carefully in order not to scratch them. Do
not use any aggressive cleaning agents.
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The mains adapter is not connected correctly.
The screen is in standby (press the "ON/OFF" button
(5) at the screen or the "POWER"
remote control).
was the correct video source
selected?
Check the cables and
connections.
The speaker is switched off because earphones are
plugged in at the "earphone connection (17).
The screen was muted by the
Adjust brightness and contrast.
The ambience temperature is very low.
Distorting influences are present in the proximity.
The colour-setting was reduced, re-adjust if required.
This screen supports no more than 60-70 Hz
Check that the correct settings on your computer.
For best display via VGA, the recommended
resolution is 1024x768 px.
button on the
button.