820-00239

[iremont]

Hey another 820-00239 external image ok but panel no image. where to start, tested 4 different displays. 2 cracked working and 2 unknown

 

[2informaticos]

History fault, liquid sign at video connector?

 

[iremont]

no liquid, customer changed display and something happen

 

[2informaticos]

He probably forgot to disconnect the battery.
Check diode mode to ground at EDP_INT_ lines of J8500.
Compare with good board, if possible.

 

[iremont]

diode mode to ground shows 0.239

 

[2informaticos]

ALL the lines equal???

 

[iremont]

yes and all same like working board

 

[iremont]

external all display ok, but no internal pic

 

[2informaticos]

Do you get same 0.239 reading on ALL 10 (ten) EDP_INT_ lines for sure???