.
Step 1 - Check TV's 110/120V outlet using a Volt Meter. Volt range should be within 104 to 126 Volts. If too low of volts (if CG is within a power dip / brown out condition), the TT's 110/120 outlet can be below 100 Volts. And, the TV won't work properly. re:
- Click Here - Step 2 - Check the TV's "input" selection. For some TV's connected to cable box, they are connected via HDMI cable. For some DVD and Media players, they must connect via RCA (White, Red, Yellow) cables. To activate the correct cable connection, the TV msut be selected on the correct INPUT port selection.
Step 3 - Move TV back to its previous port. If Blue Screen on previous setup, then its NOT the cable or TT's electrical outlets. Its the TV (or something inside it). re: Perhaps it needs "resetting" by a TV Repair Tech???
Hope this helps.