Sony KD-55X8 G Series Service Manual page 20

1.1 LD2 Troubleshooting Flow
19.5V supply voltage check
Board: LD2
START
no
Check fuse
F1001 Change F1001
Is fuse not opened?
yes
no
Check Vin
F1001
Change adaptor
Is voltage > 18V?
yes
F1001
END
20