Toshiba 19HLV87 Service Manual page 29

No VGA picture
Check if signal of CON7
pin 1,2,3,12,13,15 is normal
Yes
Check if volatge of
U8 pin 8 is normal
Yes
Check if signal of U22 pin
7,8,33,34,55,56 is normal
Yes
Check if signal of
LVDS is normal
Yes
Replace Main PCB
TROUBLESHOOTING GUIDE
No
Replace connection
No
Replace U8
No
Replace Main PCB
No
Replace U22
E-6