Pansat 2700a Receiver

If you loaded a new program, make sure you check your DiSeqc switch settings if you are using one. Also make sure your dish is align properly. Try to do a blind scan to see if you pick up anything that is available from the satellite.
If nothing works, I would suggest to check C13 and C14 for bulging conditions, if they are defective; you will need to change them.
Good Luck.