Read Sony KDL-40NX700 / KDL-46NX700 (serv.man5) Service Manual online
KDL-40/46NX700(K)
30
TROUBLE SHOOTING
3-5. NO PICTURE
No Picture
Press HOME Key
XMB (Menu) displayed?
BUHS Board
Replace
the LVDS Harness
LCD Panel
(T-con)
Harness
(LVDS)
Check
BL_ON at JL2566
on the BUHS Board
BL_ON:H
BUHS Board
Check Harness
(Between G* Board
to BUHS Board)
Harness
(G* to BUHS)
BL_ON: not H
Change BUHS Board
G* Board
NO
NG
NG
NG
YES
OK
OK
OK
PANEL_VCC
At JL3806 on the
BUHS Board
G* Board
YES
NO
about 5V ： 22” Model
about 12V : ex. 22” Model
about 12V : ex. 22” Model
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