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KDL-22EX553, KDL-26EX553, KDL-32EX653, KDL-40EX650, KDL-40EX653, KDL-40EX655, KDL-46EX650, KDL-46EX653, KDL-46EX655 - Sony TV Service Manual (repair manual). Page 120

Read Sony KDL-22EX553 / KDL-26EX553 / KDL-32EX653 / KDL-40EX650 / KDL-40EX653 / KDL-40EX655 / KDL-46EX650 / KDL-46EX653 / KDL-46EX655 Service Manual online

KDL-22/26EX553,32/40/46EX650,653,655(AEP/UK/IT/RUSS)
120
TROUBLE SHOOTING
4) 6 times blinking (Backlight Error)
6 time blinking
Check
BACKLIGHT_MON
at JL6017
on the B* board
B* board
Under 2.65V
G* board
NG
Over 2.65V
Symptom 
improvement
Change G* board
Light source
(Inside Panel module)
Check the connection
between G* board and
the light source 
(inside the panel module).
NG
LS connection
Check the harness
between G* board
and B* board.
G-B harness
NG
OK
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