Omega Owners Forum
Chat Area => General Discussion Area => Topic started by: Andy B on 04 August 2009, 17:59:34
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Any clues as to what the black square is?
(http://i84.photobucket.com/albums/k17/Tiff4327/S73F1070.jpg)
As you can see there were some scorch marks between it and the fuse holder. :-? As suspected the corrrect 5A fuse blew straight away.
I know it's only a Halfords polisher but if I could easily fix it .......
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It might be easyer and cheaper to buy a new one mate, never seen out like that before sorry :-/
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how old is it? :-?
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Its a bridge rectifier
What markings are on it?
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how old is it? :-?
18 months old? but hardly used :(
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Its a bridge rectifier
What markings are on it?
There's something on the coil resistor wotsit thingy side that I can't read KBPC???
Give me 10 mins for my soldering iron to warm up! ;D ;D ;D
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Look's like a voltage regulator ?????
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Its a bridge rectifier
What markings are on it?
I think your right....i'm a spanner ;D ;D
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Nah, its a bridge rec, the clue is in the markings.
Just checking, pretty sure its a D72 package
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Its a bridge rectifier
What markings are on it?
There's something on the coil resistor wotsit thingy side that I can't read KBPC???
Give me 10 mins for my soldering iron to warm up! ;D ;D ;D
A KBPC is a bridge rec....get the other digits and we are sorted
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As another comment, these items often fail with a short circuit diode which takes out the fuse in a very dramatic fasion!
Changed bloody loads on TV's!
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It might be easyer and cheaper to buy a new one mate, .....
Quite probaly ;) ;)
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Its a bridge rectifier
What markings are on it?
There's something on the coil resistor wotsit thingy side that I can't read KBPC???
Give me 10 mins for my soldering iron to warm up! ;D ;D ;D
A KBPC is a bridge rec....get the other digits and we are sorted
KBPC 110 :y :y :y
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It might be easyer and cheaper to buy a new one mate, .....
Quite probaly ;) ;)
Nah.....bridge recs are sub a quid....probably cheaper than the fuse!
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Should add, pretty sure a KBPC606 will do the job
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As another comment, these items often fail with a short circuit diode which takes out the fuse in a very dramatic fasion!
......!
It did! :o
There were just the ends of the fuse left in the holder and blits of glass everywhere1 ;D ;D ;D
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Well if you do a resistance measurment on the part you will find 2 pins shorted together and the rest displaying typical forward and reverse bias diode behaviour
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Should add, pretty sure a KBPC606 will do the job
So ..... if I go into the local radio spares place armed with what I've just removed, they'll have one?
And I'll have my polisher back .... for a while! :y :y
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Well if you do a resistance measurment on the part you will find 2 pins shorted together and the rest displaying typical forward and reverse bias diode behaviour
Will I? ::) ::) ::) ::)
forward/reverse diode failure? It'll let current flow in either direction? :-/ It's a looong time since I've done electronics. :y :y
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http://www.maplin.co.uk/Module.aspx?ModuleNo=19088#specifi
95p
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Well if you do a resistance measurment on the part you will find 2 pins shorted together and the rest displaying typical forward and reverse bias diode behaviour
Will I? ::) ::) ::) ::)
forward/reverse diode failure? It'll let current flow in either direction? :-/ It's a looong time since I've done electronics. :y :y
yes
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http://www.maplin.co.uk/Module.aspx?ModuleNo=19088#specifi
95p
thanks for that Mark .... which one is it?
is there anything this forum doesn't know about? ;D ;D ;D
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5 mile drive for you to Bolton....and there open till 8
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KBPC606....
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5 mile drive for you to Bolton....and there open till 8
I drive passed it coming home from work! :y :y :y
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KBPC606....
Thanks
I have to ask ...... from what I remember of eletrickery, a bridge rectifier makes a kind of DC voltage from AC volts. So, why not just fit an AC motor inside the polisher in the first place rather than a DC motor and using the bridge rectifier? :-/
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Lol....yes, it creates a bumpy form of DC from AC ;D
Your polisher will have a series DC motor in it, as will your drill etc. A true AC motor (i.e. an induction motor) would be bloody huge and heavy!
No you can feed a series DC motor with AC.....but it operates better on a DC'ish supply.
Plus, does it have a speed control?
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Plus, does it have a speed control?
No. It's one of these ..... http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_189810_langId_-1_categoryId_165640
I know where you're coming from though re speed control. The RN hadn't progressed to inverters when I was in the Navy. I was quite intrigued when I saw an AC motor 'ramp up' :-? :y
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In which case they could have been dead clever and used a shunt DC motor which will give a constant speed (near enough) independent of load
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In which case they could have been dead clever and used a shunt DC motor which will give a constant speed (near enough) independent of load
I'm now at the edge of my electrickery knowledge! ;D ;D ;D ;D
When were all doing our 'multi-skilling' the only DC motor on site had its brushes changed every 3 months as we came back to work from college! ;D ;D :y
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As Mark said Maplins opposite the college on Manchester Road or Modern Radio on Derby Street more or less across from the "University".Tend to use modern rad myself, dearer but the staff actually know what they're selling rather than the usual craplins salesdroid.
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....or Modern Radio on Derby Street more or less across from the "University".Tend to use modern rad myself, dearer but the staff actually know what they're selling rather than the usual craplins salesdroid.
That's the place I was originally thinking of, opposite corner to the McDonalds where the Chinese place used to be ..... :y :y :y. Not sure I pass when they're open though :-/ ;)
It's already stuck to a piece of paper on my passenger seat! :y :y
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....or Modern Radio on Derby Street more or less across from the "University".Tend to use modern rad myself, dearer but the staff actually know what they're selling rather than the usual craplins salesdroid.
That's the place I was originally thinking of, opposite corner to the McDonalds where the Chinese place used to be ..... :y :y :y. Not sure I pass when they're open though :-/ ;)
It's already stuck to a piece of paper on my passenger seat! :y :y
Turn up by the side of Subway and then right up the back street and there's a handy little carpark.
They should be able to sort you out.
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Soldered the bridge rectifier in .... I did get it in the correct position. New 5A fuse.
And it ran ;) ..... for about 2 revolutions before it went pop again! :-/
It's going in the bin! :-?
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Soldered the bridge rectifier in .... I did get it in the correct position. New 5A fuse.
And it ran ;) ..... for about 2 revolutions before it went pop again! :-/
It's going in the bin! :-?
Thats a shame :-X
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Soldered the bridge rectifier in .... I did get it in the correct position. New 5A fuse.
And it ran ;) ..... for about 2 revolutions before it went pop again! :-/
It's going in the bin! :-?
Thats a shame :-X
I'll save it for you if you like. ;) ;) ;)
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Soldered the bridge rectifier in .... I did get it in the correct position. New 5A fuse.
And it ran ;) ..... for about 2 revolutions before it went pop again! :-/
It's going in the bin! :-?
Thats a shame :-X
I'll save it for you if you like. ;) ;) ;)
Thats ery thoughtful of you thanks a lot :y......I'll pick it up at the weekend, have sent you a PM :y
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I would maybe fit a bigger bridge rectifier in maybe if its getting that hot!
Is the polisher variable speed? Just seems odd that the new bridge rectifiers died so quickly. Is the motor seized?
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I would maybe fit a bigger bridge rectifier in maybe if its getting that hot!
Is the polisher variable speed? Just seems odd that the new bridge rectifiers died so quickly. Is the motor seized?
No it's just on or off,and it spins quite freely. It had been given a fair bit of use before it initially died though.
I'll look at one along the grinder type like yours ..... :y :y :y