Read Sony KDL-32EX421 / KDL-32EX425 / KDL-32EX520 / KDL-32EX521 / KDL-32EX523 / KDL-32EX524 / KDL-32EX525 / KDL-37EX521 / KDL-37EX524 / KDL-37EX525 / KDL-40EX520 / KDL-40EX521 / KDL-40EX523 / KDL-40EX524 / KDL-40EX525 / KDL-46EX520 / KDL-46EX521 / KDL-46EX524 / KDL Service Manual online
KDL-32EX421,425/37EX521,524,525/32/40/46EX520,521,523,524,525(AEP/UK)
44
TROUBLE SHOOTING
3-5. NO PICTURE
No Picture
Press HOME Key
XMB (Menu) displayed?
B* Board
Replace
the LVDS Harness
LCD Panel
(T-con)
Harness
(LVDS)
Check BL_ON
at pin 6 of CN6002
on the B* Board
BL_ON:H
B* Board
Replace Harness
(Between G* Board
to B* Board)
Harness
(G* to B*)
BL_ON: L
Change B* Board
G* Board
NO
YES
NG
OK
NG
OK
NG
OK
Check PANEL_VCC
at pin 1 of CN6001
on the B* Board
G* Board
YES
NO
about 5V : 22”/26” Model
about 12V : ex. 22”/26” Model
about 12V : ex. 22”/26” Model
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