Way OT - any electronics gurus can help with this circuit board?

[Max...]

Sorry chaps - this is way OT but there is a lot of knowledge on here so worth asking!

One of these: https://www.johnlewis.com/kitchenaid-hand-mixer/p1199088

Hate throwing things so I'm trying to fix it - it has worked fine for years then one day the obligatory puff of smoke and it stopped. I cannot see anything obvious on the board. Anyone got any ideas where or how to check exactly?

 

[Ronnie Dent]

Check the fuse top left 2nd picture

 

[Ace`]

If there was smoke there should be damage, look at TR1 for physical damage. The fuse at F2 on the bottom might be open but you need to find the issue before replacing it. It sounds funny but if it did smoke you should still be able to smell which commonent went, my money would be on TR1 or what looks like a relay since everything looks fine.

 

[Max...]

Cheers guys - for sure re' checking after smoke but no smell or visual indicators that I could/can see.

No continuity across the fuse F2.

 

[TheDaddy]

Check for short circuit - If its blown the fuse then its normally that (Not always ! ) If so a component may be fuffed, They can pop from underneath so untill you start removing and testing you cant always see it.

Dave.

 

[Spanky]

Send it to Big Clive.

 

[Max...]

Hmmmm, so I decided to replace the fuse and give it another test...

Errrrrr, I think it's pretty terminal now. Sorry chaps.

At least I know what to get her for Christmas...



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[TheDaddy]

So you didnt test for shorts ............. lol , Picture of the result would be great !!



Dave.

 

[Max...]

Err, no. I don't have a pic sadly during but a big bang, flash and lots of smoke this time...

 

[TheDaddy]

Get the board out come on !!! Wall of shame

Dave.

 

[TheDaddy]

There is a thread here for you to post in :-

Be Honest ????

Ok so after an absolute shocking day that has resulted in me pretty much butchering a vendetta PCB leaving it 3 times as bad as when I started , I wondered how many people have ruined something (Unintentionally) either PCB / Cab ect. And how many will admit it ?? Dave. P.S I am hoping this...

www.ukvac.com

Dave.

 

[Max...]

Well, the board is fine - I (as you do ) thought I'd just solder a piece of 10 amp (!) fuse wire over the old fuse and plug it all in - it's the motor that went bang in dramatic fashion but nothing to see. Except when I looked closely I found a small screw has been attracted by the magnet and I think had shorted the whole thing... doh. And the fuse wire is still intact.

 

[TheDaddy]

Haha oh well lesson learned , I have done worse to be fair.

Dave.