Sony KDL-46HX900 Service Manual page 31

3-5. NO PICTURE
No Picture
NO
Press HOME Key
XMB (Menu) displayed?
YES
BAL Board
KDL-46/52HX900(HK/AUS)
about 5V ： 22" Model
about 12V : ex. 22" Model
YES
PANEL_VCC
At JL3806 on the
BAL Board
NO
BL_ON: not H
G6A Board
BL_ON:H
Check
BL_ON at JL2566
on the BAL Board
NG
Check Harness
(Between G6A Board
(G6A to BAL)
to BAL Board)
OK
NG
Change BAL Board G6A Board
OK
BAL Board
TROUBLE SHOOTING
Replace
the LVDS Harness
OK
Harness Harness
(LVDS)
NG
LCD Panel
(T-con)
31