esprimo v6535 have no display on LCD( Back lights come, but no display) , have display on CRT( External video). when unplug LCD flat cable and power on CRT said "Out of frequency"!( we have CRT display when connect flat cable). I changed LCD by neraly similar LCDs, some display noisy thing and some other display nothing. LCD part number is: LP154WX5. ( change by LP154W01 and no display, change by B154PW02 and display boot screen but moving and very noisy).
What do you think? What is problem? LCD? Board?
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one of LCD Connector on the motherboard deformed. Fixed,now display is OK. Closed.