Monday, July 09, 2012

PANASONIC PLASMA TVs OSD OK BUT NO PICTURE FROM ONE OR ALL INPUTS




  • Is there no picture from all inputs?
  • If No; 'A' board is defective.
  • If yes; 
  • Disconnect CN A5.  Turn the TV On.  Does a white picture appears?
  • If yes; A1 or D2 board is defective.
  • If No; 
  • Panel discharge occurs?
  • If yes; D board is defective.  
  • If No; 
  • Disconnect the 'SU' board from the 'SC' board.  Turn the TV On.  Is there is a picture at the lower half of the screen?
  • If yes; 'SU' board is defective.
  • If No;
  • Connect the 'SU' board.  Disconnect 'SD' board from the 'SC' board.  Turn the TV On.  
  • Is there is picture on the upper half of the screen?
  • If No; 'SC' or 'D' board, and possibly panel.
  • If yes; 
  • SD board is defective.

at