can you id this component

[moss99]

Hi all i have a pair of mission 731 speakers which the tweeter in one does not work i have continuity through the driver which led me to the xover i have put a photo up ,,
I think the component with 475K 100V written on it is at fault i have removed it and am getting an open circuit reading is this a resistor of some type and any idea where to get one ?

 

[poynton]

It is a capacitor and will read open circuit.

Please post a photo or 2

Andy

 

[Frank Berry]

Probably 4.7 uf @ 100 volts.

 

[pilli]

I think the component with 475K 100V written on it is at fault i have removed it and am getting an open circuit reading is this a resistor of some type and any idea where to get one ?

As it's been said, the marking "sounds" like a capacitor ("K" is the tolerance code)
and a capacitor is supposed to give an open circuit reading (on an ohm-meter) when it is good, there's a dielectric (isolation) in there...

i have put a photo up

I don't think we can see it.
_

 

[quasi]

You can test the capacitor by connecting to an ohmeter and taking a reading. Then reverse the leads. If the capacitor is good you will see continuity until the cap charges up. After this happens you will see open cct again. Reverse the leads again and you will see the cap discharge and then charge again to an "open cct state". If you get this then the cap is ok. If you don't then it really is open. Use a high range scale like 200k on your meter.

Cheers
Quasi

 

[moss99]

Hmmm i can see the photo i did have a bit of trouble posting the photo i will try again ,,
Mission have e-mailed me back today they only sell the whole crossover not the components,,

 

[mjf]

hello.
i think it is a (film/foil)cap with 4,7uf/100v.
greetings.........

 

[pilli]

Now the photo is visible.
Could you post the picture or schematic (it shouldn't be too difficult to trace it)
of the whole crossover?

-

 

[Trevorferns]

The value is 4700000 pF, 10%, 100 volts. In other words its 4.7uF