I have a sharp LC 65LE643u that i am trying to repair.
I got the tv. with no video ,no audio and the screen slowly get bright white from center to edge.Voltage for m.b. (19v) is 19.46v and m.b provide the 12v for t-con also.
Based on no video/sound i order a (used) replacement board .
Replaced the main board, tv. start and i can see on screen no signal .I turn around to plug a hdmi cord and when i turn back to screen i see the screen getting white . With this board i have sound . Just to be sure i order a t-con board that make no difference.I am not sure if the main board fail . or is something else there. Any suggestion how to pinpoint the problem?
I got the tv. with no video ,no audio and the screen slowly get bright white from center to edge.Voltage for m.b. (19v) is 19.46v and m.b provide the 12v for t-con also.
Based on no video/sound i order a (used) replacement board .
Replaced the main board, tv. start and i can see on screen no signal .I turn around to plug a hdmi cord and when i turn back to screen i see the screen getting white . With this board i have sound . Just to be sure i order a t-con board that make no difference.I am not sure if the main board fail . or is something else there. Any suggestion how to pinpoint the problem?
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