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What's this cap please


riche100
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There looks to be a big white stripe, possibly marked with - - - - -  on the left hand side of Pic 2. It's also usually the shorter lead.

 

This would be a -ve side, so red (assuming red is +ve!) would go to the 'unmarked' side. Or, the longer lead.

 

If you want the exact same component for 'looks', you need to search for an axial cap next time. This type has one lead in one side, the other opposite.

Edited by DJ Bez
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Changed the cap thank you . I have now noticed this broken diode or something what's it's value and purpose please ?

 

post-3530-0-10315000-1506797859_thumb.jpgpost-3530-0-22502300-1506797940_thumb.jpg

 

 

Whilst messing I found this similar psu with a component kinda in the same place . Could I use this in place of the exploded diode or whatever it is please

 

post-3530-0-04154100-1506798079_thumb.jpgpost-3530-0-43664300-1506798166_thumb.jpg

post-3530-0-71640000-1506798170_thumb.jpg

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Would be hard to speculate as to what it does without seeing the circuit, but it doesn't look like a Zener (famous last words) so I bet it could be a simple old 1N4001 or other 1N400x.

 

The other component is a power resisistor (a resistor that can handle a lot of current) and not the same thing at all.

 

That fuse in the dioded circuit looks like a bodge btw, do you know what that goes onto and what it would be feeding, and what sort of current is used and/or what the fuse originally should be?

Edited by DJ Bez
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dj bezzo , i havent got a clue as there is no circuit diagram or any info with this prize machine .. i can tell you as its a red wire it goes to the red side of that cap i just changed .. 

 

post-3530-0-35819700-1506798961_thumb.jpgpost-3530-0-00555100-1506798962_thumb.jpgpost-3530-0-49019100-1506798963_thumb.jpgpost-3530-0-33952800-1506798965_thumb.jpg

 

 

whats meant to happen is coin inserted, chef opens door gets a prize and turns and drops it down the shoot

 

(with music playing) ..  but i think the audio side of the machine is missing 

 

 

the psu as you can see looks very basic  . (or i think it is) 

 

thank you so far for everyones input

Edited by riche100
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Looks like it's a standard diode with silver band at one end denoting current flow.can you push 2 halves together and read it.this will be used to allow voltage to flow in one direction and not reverse.4 of these make a bridge rectifier and turn a.c. to dc

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1N4007S 1A Silicon Rectifier 

or 1N4007G 1A Glass passivated rectifier to fit and replace the blown in pieces item ? 

 

 

and will a 2amp or 3 amp fuse in the holder it joins too be ok ? 

 

regards and thanks in advance

 

richard

 

 

 

 

 

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Both rated at 1A, so I would say OK for a quick fix, maybe get full spec another time from docs or another machine?

 

I would have to question what happened though for it to be blown apart?

 

2A would be OK only as a wild guess being double diode rating; but would prob. only blow at 4A!

 

Ultimately only the manf. can really dictate the fuse, otherwise you just have to be 'sensible' but again depends on demands of circuit etc etc.

An ammeter (or Multimeter) will confirm what the usual current is...

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ps Ignore all my comments about an 'axial' capacitor BTW - now I have looked at the photos properly!!

 

i dont know what your talking about anyway haha or anyone else :)

 

thanks for whatever youve contributed :) 

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Replace the diode with a 1N400X and the fuse should be a 1amp. X = 1 through 7, any will do for this application

If it blows up again, trace that wire and see what comes next.

 

thanks for the reply , ive brought these bits and bobs now, so i will try them now . 

 

if no luck or it blows again i will look into other options .

 

would be great if i knew the voltages of stuff as i could prob do away with this psu for something else 

 

 

 

just want it to work 

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well well well ...

 

machine is busted ..  but was maybe nearly doing or going todo something 

 

first it blew both fuses, then with the bottom fuse completely removed the top one stayed intacted and i got some lights on a board inside the machine 

 

and now with or without anything connected both fuses blow again ?

 

so i am lost ..

 

here are some pics :

 

post-3530-0-25020400-1506877303_thumb.jpgpost-3530-0-22290200-1506877309_thumb.jpgpost-3530-0-10383900-1506877312_thumb.jpgpost-3530-0-77753500-1506877316_thumb.jpgpost-3530-0-13677000-1506877324_thumb.jpgpost-3530-0-32980900-1506877326_thumb.jpgpost-3530-0-45479100-1506877332_thumb.jpgpost-3530-0-82974500-1506877335_thumb.jpgpost-3530-0-35957100-1506877339_thumb.jpgpost-3530-0-27430000-1506877343_thumb.jpg

 

any further advice would be greatly recieved . all the best

 

 

 

 

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