Component identification

[daffyduxxx]

Hi everyone,
I am trying to repair a musical, singing, dancing 3 foot tall Moose, a Christmas decoration.
The owner plugged in the wrong power supply.
I have found a blown capacitor and this SMD transistor tests as faulty too.
But I'm having great difficulty identifying it, or what it is actually doing in the circuit.
As I say, the figure sings, plays music and moves.
I have attached photos of the whole pcb and closeup of the transistor. Any help would be very much
Paul

 

[Pommie]

When you say wrong power supply, was it wrong voltage, polarity or both?

Mike.
My biggest worry would be that black blob. Google COB if needed.

 

[daffyduxxx]

Mike,
The owner didn't enlighten me on that. Just said the wrong power supply.
Do you think the chip could be "fried" as well?
Paul

 

[Nigel Goodwin]

Mike,
The owner didn't enlighten me on that. Just said the wrong power supply.
Do you think the chip could be "fried" as well?
Paul

Quite possibly, the COB is likely to be a fairly 'sensitive' device, and easily damaged. Basically it depends if other parts died before the COB could be damaged, and thus saved it.

Drawing the schematic out, and labelling what each external wire is, would give a clue as to what the burnt out device is.

 

[daffyduxxx]

Thank you for your help. It is much appreciated.

 

[DerrickOlley]

Had a similar problem! I drew a diagram and it became more and more clear to me! It's not working yet, but I'm thinking about solving the problem!

 

[daffyduxxx]

Thank you and good luck with your project