Sony GN1G - NO POWER AND LED BLINKING ISSUES

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TROUBLE SHOOTING
3-2. NO POWER
3-2-1. No Power (LD Board)
KDL-50W800C, 805C, 807C, 809C/KDL-55W800C, 805C
No Power
Check Fuse F1000
B* Board
OK
NG: DC Voltage is 0V
DC/DC converter check
NO POWER: MUFFIN
Check 19.5V_SS
JL1000
MOSFET Q1003
broken
NG: DC Voltage is 0V
Check connection
harness
CN4001
OK
OK
Symptoms
Symptoms
Check DIODE
D1001
DIODE D1001
broken
NG: Diode are shorted
FUSE F1000
broken
OK
Check Fuse
12V DDCON
F9104
OK
FUSE F9104
broken
NG: DC Voltage is 0V
Size B* Board G* Board H* Board
50” BMX Not applicable
HSC3
55” BMX Not applicable
HSC3