this tv has working psu b/light and sound with dark blue screen ,
no on screen graphics the t con is part of the tab bonding boards .
the ics used to produce the various dc supplies are :
RT 6939 and RT 6935.
.i have 12v going to board ,but need to know what pin is the enable pin on these ics
because these ics are not switched on i get no 3.3v vone voff 1.8v ect
ive spent hours looking for data on these ics
ive checked all the mlcc caps for short or low res to deck ,diodes ect
ive tried to search for details of the panel in case it included details of the tab bonding boards, no luck
does anyone have circuit or data sheet for these ics please?
i also removed the bevel to see if there was evidence of spillage or corrosion
and all seems clean none of the test points for the various voltage supplies have low resistance to earth
so im convinced it could be a feed o/c or no enable volts to start up the ics missing
all supplies on the main board seem ok 3v3 ,5v
this design without separate tcon makes life very difficult you cant unplug one side then the other to help with diagnosis any ideas please
no on screen graphics the t con is part of the tab bonding boards .
the ics used to produce the various dc supplies are :
RT 6939 and RT 6935.
.i have 12v going to board ,but need to know what pin is the enable pin on these ics
because these ics are not switched on i get no 3.3v vone voff 1.8v ect
ive spent hours looking for data on these ics
ive checked all the mlcc caps for short or low res to deck ,diodes ect
ive tried to search for details of the panel in case it included details of the tab bonding boards, no luck
does anyone have circuit or data sheet for these ics please?
i also removed the bevel to see if there was evidence of spillage or corrosion
and all seems clean none of the test points for the various voltage supplies have low resistance to earth
so im convinced it could be a feed o/c or no enable volts to start up the ics missing
all supplies on the main board seem ok 3v3 ,5v
this design without separate tcon makes life very difficult you cant unplug one side then the other to help with diagnosis any ideas please
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