soundwave ctv1405t power suppy burnup

[exsolderman]

I am hoping someone can be of assistance in identifying two transistors
which have died as a result of s/c in above. They are marked on board
as Q104 and Q105
Idealy a schematic of power supply would be appreciated.
Many Thanks

 

[Simoc]

So you mean that the markings on the components have burnt to
unreadable?
In such case, sometimes it's possible to get them just readable by
_gently_ scraping it and using a powerful light to see it. But not
nearly always :-(

 

[exsolderman]

blasted apart completely un readable

 

[b]

exsolderman ha escrito:

I am hoping someone can be of assistance in identifying two transistors
which have died as a result of s/c in above. They are marked on board
as Q104 and Q105
Idealy a schematic of power supply would be appreciated.
Many Thanks

post the chassis ref.
i have never heard of this brand before. chances are the guts are made
by orion, beko or vestel....
-B.

 

[exsolderman]

The only number I can find is printed on the main-board.
PB-MAIN-1405-V5 TW.
Could this be the chassis number

 

[b]

The only number I can find is printed on the main-board.
PB-MAIN-1405-V5 TW.
Could this be the chassis number

possibly, but not familiar to me in this case.
if you have a digital camera you could try posting some pics on
imageshack.us. see if anyone here recognises the board.
-b

 

[exsolderman]

Thanks B.
Now found out Q104=S8550 Q105=2SC368
Which just leaves me one problem; where to get an S8550. Can't find a
retailer stocking this transistor or even supplying an equivalent..