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Old 2nd March 2013, 04:41 PM   #1
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Default help identifying this part?

Hello everyone,

Im a complete novice but have put my hands to a couple diy projects and have repaired some old synths. I recently bought an old M&M electronics mixing desk and have some problems with power. its should be giving 15v +- but is giving +14 -5. There is a cracked component on the power regulator. well I think? I took it to RS Components and none of the staff could help me. If anyone could take the time to help[ me out i would be very grateful.

It the sweet looking thing

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Old 2nd March 2013, 04:54 PM   #2
Mooly is offline Mooly  United Kingdom
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Try attaching the image directly

"To add a photo, files or non standard files.

First click "go advanced" in the box below the "quick reply" message box. Doesn't matter if you decide half way through a message to do that, it carries it foward.

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Make sure your pics aren't too big, a couple of 100k is plenty, and many members object when they are massive and it alters the margins
It tells you in the attachments window what max sizes are allowed.


If you want to attach a file that has a non standard format for example excel, circuit simulation etc then try putting the files in a zipped folder and attaching that.
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Old 2nd March 2013, 04:56 PM   #3
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thanks you Ill do that
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Old 2nd March 2013, 04:59 PM   #4
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is it a capacitor?
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File Type: jpg Power regulator.jpg (76.7 KB, 61 views)
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Old 2nd March 2013, 05:43 PM   #5
FdW is offline FdW  Netherlands
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Location: Both feet on the ground (near Gouda)
Look for 'Tropical Fish'
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Old 2nd March 2013, 05:47 PM   #6
Mooly is offline Mooly  United Kingdom
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Those type of caps are often wax coated. It may well be OK but in any case its a 0.1uf cap so easy to swap to prove it.
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Old 2nd March 2013, 05:53 PM   #7
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thank you

0.1uf now i just match the voltage? so 250?

what type would be best to use?

im sorry if this is very basic I intend on doing a course
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Old 2nd March 2013, 06:33 PM   #8
Mooly is offline Mooly  United Kingdom
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Any film type will be OK. Always nice to get one that fits the PCB if possible.

Have you removed it and measured it for leakage. I'm not saying its not faulty but I suspect that either its OK and the fault is elsewhere or if it really is faulty then it will have caused other damage along the way. It takes a lot of energy to burn a faulty cap, more than a small transistor regulator can give.
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Old 2nd March 2013, 06:35 PM   #9
Mooly is offline Mooly  United Kingdom
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You could bend the legs on something like this,
ECQE2104JF - PANASONIC - CAPACITOR, FILM, 250V, 0.1UF | CPC

Caps have got much smaller over the years.
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Old 2nd March 2013, 07:05 PM   #10
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well it was completely cracked in half an the other had sides missing?? i just swapped them for something i had here an it works fine

this site is great. im so happy i can put this together tonight. now to look at upgrading the op amps
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