Sony GN1G - Page 37

3-2-4. NO Power (DC/DC converter check)
37
TROUBLE SHOOTING
KDL-50W800C, 805C, 807C, 809C/KDL-55W800C, 805C
START
Check EN signal
R9321 voltage
Is voltage >2.5V?
Check Vcc
C9213 voltage
Is voltage >5.0V?
Check fuse
F9015
Is fuse OK?
Change IC9023
Change F9015
No
Yes
No
No
Yes
Yes
END
G* Board/LD-Board
Check input
F9015 voltage
Is voltage >19.0V?
LD-Board model G* Board model
Check input
F9015 voltage
Is voltage >12.0V?
Yes
Yes
Yes
No
No
a) 3.3V DDCON check
Size B* Board G* Board H* Board
50” BMX Not applicable
HSC3
55” BMX Not applicable
HSC3