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KDL-32/40/46/55HX750,751,753,755,756,757,758,759,75G(AEP/UK/IT/NOR)
109
TROUBLE SHOOTING
4) 6 times blinking (Backlight Error)
6 time blinking
Check
BACKLIGHT_MON
at JL6017
on B* board
B* board
Under 2.65V
NG
Over 2.65V
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
between G* board
and B* board.
G-B harness
NG
OK
3a’s G* will go into the backlight error when
BL_ON = 3.3 V and PWM_DIMMER = 0 V.
BL_ON = 3.3 V and PWM_DIMMER = 0 V.
BL_ON: G* CN6401#5
PWM_DIMMER: G* CN6401#2
PWM_DIMMER: G* CN6401#2
Tcon board
Symptom
improvement
improvement
Change Tcon board
Replace
the LVDS FFC
LVDS FFC
Symptom
improvement
improvement
NG
G* board
Symptom
improvement
improvement
Change G* board
NG
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