LG 47LB5DF - Page 33

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Symptom : No booting
Check X300 (24MHz)
Normal?
Re-download
MTV416GMF (IC309 )
Normal?
YES
Replace MTV416GMF (IC309 )
and Re-download
Check SI3865(Q702) 2,3pin 5V
Normal?
Check SI3865(Q1901
,Q1902,Q1903) 2,3pin 3.3V
Normal?
YES
Check SI3865(Q702) 5pin 3.3V
Normal?
Check SI3865((Q1901,Q1902
,
Q1903 ) 5pin 3.3V
Normal?
NO
NO
Replace SI3865(Q702)
YES
Replace
SI3865(Q1901,Q1902,Q1903
)
YES
NO
YES
Check SI4800( Q315)1,2,3Pin
1.9V
Normal?
Replace SI4800( Q315) Replace SC2621(IC304)
YES
NO
NO
Check between FB1714 and
C345
1.2V
Normal?
Replace SI4800( Q300,Q301) Replace SC2621(IC304)
NO
NO NO