Re: Marshall Stanmore Repair

Greetings...I was looking around for a schematic for the Stanmore and came across your discussion. I should pop in more often . I usually park my brain in some other forums :-)
Anyway ,the unit I received for service did not have audio. Unit came on with LED ,etc. I found that U15, audio output IC was cooked. I replace the IC, however I still have no sound. All voltages appear to be good. I can see audio at U19 (in/outs) . I see audio going into U4, but nothing coming out, data or analog. There could be a micro/software issue not enabling this...

Re: Lg 55LM6700 steady backlight no on screen display, pic, or sound

scope the lines of the LVDS to see if there is video going to the panel. That will tell you if you have panel or main board issue..

Re: Sharp LC65LE645U --entering service menu

Follow up --found service manual and indeed it is different! either " menu, 2,4,8,9 " for factory menu or "menu 4,3,9,8" for service menu...however, either one does not give you too much ...This must be a Walmart or BJ's model....

Re: What type of "Failure" does this look like?

With the symptom going the whole way across the display, you may possibly have a T-con failure. It's 50/50, but would be worth it to substitute a T-con to check. Usually if you have that same symptom in only a portion of the display, then it is 98% a display failure.

This particular model has an AmTran board and the service menu entry is different, I believe. Well, at least the usual methods of entry on a Sharp does not work. Has anybody else had the same issue with this model and what is the service menu procedure?

Re: 47ln5400 No Picture

If you're getting sound from a program/channel, then there is traceable video. Use a scope and check for video going into the T-con, and then from T-con to panel. If you have a good video signal, then you have a bad panel.
Also check for voltage on the T-con and/or open circuit board fuse

Re: New Members - please post your introductions here

Being in the electronic repair business for over 25 years would eventually land me here. It was only a matter of time. With today's LCD/LED and plasma TV's troubleshooting has gotten a little more interesting and very challenging at times. Therefore, I have found that a collective of problem solving minds involved with locating and repairing some of these issues has been very helpful. While there are times that I am very busy and cannot contribute, there will be many times that I will help when I can. Hopefully, there will be...