Re: How to make LVDS test under 99 cents
"55' Samsung LED TV won't can on , unplug power cable to mother board , back light come on" That is one way of finding out if the power supply/backlights are OK or not, they (Samsung) installed the pull-up resistors (for ACTIVE HIGH) for the PS-ON and the BL-ON into the power supply board so the tech in the field does not have to rig up two external resistors to test the power supply and backlights circuit, save them time in the field. Samsung has done that more than 3 years ago.
"55' Samsung LED TV won't can on , unplug power cable to mother board , back light come on" That is one way of finding out if the power supply/backlights are OK or not, they (Samsung) installed the pull-up resistors (for ACTIVE HIGH) for the PS-ON and the BL-ON into the power supply board so the tech in the field does not have to rig up two external resistors to test the power supply and backlights circuit, save them time in the field. Samsung has done that more than 3 years ago.
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