Thank you for posting your question on Just Answer! I will be happy to help you with this problem. Can you please give us some more information so I can better answer your questions.
-When you have no picture, if you press the menu button on the tv itself, does the menu show up?
-How old is the unit?
- Do you have this problem while watching all different devices hooked to this television? (DVD player, cable, satellite, game counsel, ect.)
Please give me this information and I will be happy to assist you further.
No menu will appear. Unit is 2 yrs old. I have a cable HD box hooked up whose remote controls TV. Also took shields off of both power supply and main digital board to check for bulging electrolytics. Power supply appears to maybe have a couple of bulging caps but hard to tell. Also Took some voltage readings coming out of pwr supply:
ACD= 4.06 On/Off=2.8 ST 5v= 4.16 Inv Ctl= 3.03 A Dim= .47 3.4v On= 2.3
ERR= .8 Burst dim= 3.58 6.5v= 6.3
Don't have any idea what is bad voltage though.
Any chance you can get me a picture of the power supply? (if you can post a picture, please click the icon above where you are typing with the green tree on it. This will allow you to upload a picture)
I do want to see the buldging caps so I can determine if its your problem or not, if you can send the picture to firstname.lastname@example.org she will forward it to me.