Sometimes a failed broadcast satellite Tricolor or after upgrading the software on the receiver dre 4000/DRE 5000 problems with sound and / or video package Tricolor tv channels: all channels or in part. The most common problems can be solved as follows: Turn on the receiver. Click on the remote control button Menu. The Main Menu receiver. Click ok to enter the submenu “Configuration”. Enter the desired pin (factory setting pin – 0000). Use the arrow keys “Up” or “Down” on the remote control go to the menu item “Organising and click” ok “. Click “OK” again to edit all the available channels. Click “OK” again to edit channels. Use the arrows Up or Down select channel on which there is a problem, and press the button on the remote control “OK” button to select a channel. When all problematic channels are selected, press the red button i to delete the selected channels. Removal is necessary to confirm the appropriate dialog box (by pressing the cursor left and click “OK”). After all problematic channels are removed, press the Exit three times to go to the Setup menu. Use the arrow keys “Up” or “Down” on the remote control go to the menu item “Manual Search” and click “OK”.