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KDL-32EX720, KDL-32EX721, KDL-32EX723, KDL-32EX724, KDL-32EX725, KDL-32EX726, KDL-32EX727, KDL-32EX728, KDL-32EX729, KDL-37EX720, KDL-37EX723, KDL-37EX725, KDL-40EX720, KDL-40EX721, KDL-40EX723, KDL-40EX724, KDL-40EX725, KDL-40EX726, KDL - Sony TV Service Manual (repair manual). Page 104

Read Sony KDL-32EX720 / KDL-32EX721 / KDL-32EX723 / KDL-32EX724 / KDL-32EX725 / KDL-32EX726 / KDL-32EX727 / KDL-32EX728 / KDL-32EX729 / KDL-37EX720 / KDL-37EX723 / KDL-37EX725 / KDL-40EX720 / KDL-40EX721 / KDL-40EX723 / KDL-40EX724 / KDL-40EX725 / KDL-40EX726 / KDL Service Manual online

KDL-32/37/40/46/55EX720,721,723,724,725,726,726,727,728,729(AEP/UK/RUSS)
104
TROUBLE SHOOTING
3) 4 times blinking (Balancer Error)
4-time blinking
Check
PANEL_FAIL at
pin 7 of CN6002
on the B* Board
Panel
B* Board
Between 0.84V to 2.65V
Change G* Board
G* Board
Below 0.84V
Symptom 
improvement
NG
Change LED Driver Board
LED Driver Board
Symptom 
improvement
Page of 127
Display

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