Facing TV Problems? Ask a TV Technician.
To get into the Insignia LCD service menu, do the following:1. Power on the TV.2. Adjust the volume to zero3. With the remote - Input 9876 - then OK within 5 seconds.If successful, you should come to FACTORY SET MENUFrom here, you can find your adjustments under the SERVICE MENU option.
Ok, I will check if the other experts have any further ideas on this...