Philips BDP5200/12 - No Video Display

No video display
Check if L452 is on main BD
No
No Video display
Add L452
Replace the main board
Yes
Check If R616 is
on
No
Add R616
Trouble shooting chart
4-5
Check if CN7/CN8 fix well from
AV board to mainboard.(the
solder of CN7/CN8 is OK
)
No
Fix CN7,CN8 in AV board
Yes
Yes
Main BD