Sanyo dp42746 plazma tv help

[needles-2]

Hello  I have a problem could you help me?
I have a sanyo model dp42746 when I press the power button I hear a click in the back but no screen
I am limited to changing boards out and some basic repairs I have replaced the power board no help, a green light on the power board flashes 12 times is this some kind of code? Please any help would be appreciated Thank you Bill

[jordan]

Check Y-SUS board

[needles-2]

Hello thank you for the reply, is that the board to the left or right of the power board? I apologize for my lack of knowledge  , I really appreciate the help  Thank you Bill also do you know ware I can download a service manual for this unit? I tried to insert images but I could not figure out how to do it 

[jordan]

 

[needles-2]

  thanx for the link, if I get this right there is an X sustain  board to the left of the power board and Y sustain board to the right I tried to purchase a used y sust board on ebay but the only one I could find was the X board I purchased one for $17.00 If it dosn't work I can always resell in for more than i paid From your experience is there a common part on the Y board that goes bad maybe I could replace?  Bill 

[needles-2]

One 2 many question's I Guess,Thank You very much for all the help I learned something and that's all that really matter's , Your a good guy Thanks again Bill