LG 47LB5DF - Page 32

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Symptom : TV set out of order on powers
Check X300 (24MHz)
Normal?
Re-download
MTV416GMF (IC309 )
Normal?
YES
NO
Replace MTV416GMF (IC309 )
and Re-download
Check SI3865(Q702) 2,3pin 5V
Normal?
Replace Power board
Normal
Check P702 all input voltage
Normal ?
YES
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 NO
Check P702 wafers & connectors.
Normal ?
YES
Check P701 #3,8Pin 5V
Normal ?
YES
Replace power board
NO
NO
Replace SI3865(Q702)
YES
Replace
SI3865(Q1901,Q1902,Q1903
)
YES
NO
YES