Sony KD-55X7 E Series - DDC: +5.0 V_DDC_OUT Check

DDC: +5.0V_DDC_OUT check
98
START
Check EN signal
R455 voltage
Is voltage >2.5V?
Check Vcc
C428 voltage
Is voltage >5.3V?
Check fuse
F6004
Is fuse OK?
1.2 No Power U-Com Failure
Change IC402
Change F6004
no
yes
no
no
yes
yes
END
yes
Check input
F6004 voltage
Is voltage >19.0V?
LD-Board model G-Board model
Check input
F6004 voltage
Is voltage >12.0V?
yes
yes
no
no
G-Board/LD-Board
KC 55”/65”=G-Board model (PSU)
KC 43”/49”=LD-Board model (ADP)
3.11 No Power DDCON/LDO