This the model number of the board :
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! level3 !
! LR76377 !
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! MODEL :PWI1904SJ(A)(B)(C) Rev 1.0 !
! INPUT :100-240V ~50-60Hz.1.0A !
! OUTPUT

! +15.0V---0.3A !
! (PN1.PN2.PN4) = 650V~7.5mA !
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YB751904SJ(A)005251...
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