Someone want to take a stab at the fuse rating in this

[angellonewolf]

My guess 140w devide by 240 is .6amp so 1 amp fuse ?

 

[Other Daniel]

That's what I would say also.
Probably wrong I expect...

 

[Guineafowl]

Standard 3 amp to protect the AC flex. Fuse on board will protect the rest.

 

[Popcorn]

Made in China, so needs a Chinese fuse:

 

[angellonewolf]

looking at the burn marks in the inside of the case it might have had that

 

[Red'n'Black]

Fuse ratings are normally stamped on the end caps. Can you unsolder the old one and get some closeup pics?

 

[Guineafowl]

Fuse ratings are normally stamped on the end caps. Can you unsolder the old one and get some closeup pics?

I think he means the plug fuse.

 

[angellonewolf]

update on this the fuse said t3,25al250v

so assumed that was 3.25 amp any how the closest i had was a t5250v so soldered a couple cables on it and put in the board and it poped with a large flash i looked over the board again but nothing looks blown so its for the bin only a cheapy thing and not worth the time and effert

 

[Beanwood]

update on this the fuse said t3,25al250v

so assumed that was 3.25 amp any how the closest i had was a t5250v so soldered a couple cables on it and put in the board and it poped with a large flash i looked over the board again but nothing looks blown so its for the bin only a cheapy thing and not worth the time and effert

Perhaps I can drop your megger back tomorrow evening, and you can track down the cause

 

[angellonewolf]

Perhaps I can drop your megger back tomorrow evening, and you can track down the cause

no rush its a 20 quid new unit that id expect got a problem with one of the wire transformers or a triac thats gone dead short the parts are cheap but if they cost a 10er and then i spend time to sort it then id rather buy a new one

it was a bood sale buy that does not work and i paid 4 quid and bought that day a few bits for a fair price so it dont owe me much

 

[Red'n'Black]

Usually it's the switching transistor that's blown, the question then is whether it's taken the controller chip and a bunch of other parts with it. As you say probably not worth it for a cheapy.