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Old 18th May 2008, 04:00 PM   #1
marko is offline marko  United Kingdom
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Default what is this component? (surface mount)

hi all, got this diamond audio d7065 i'm trying to fix up, but i can't find any info on this transistor(?) it's a surface mount part and has f007 056 on it! any help would be much appreciated

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Old 18th May 2008, 04:24 PM   #2
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Try this Marko.... PMBTA56
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Old 18th May 2008, 04:33 PM   #3
marko is offline marko  United Kingdom
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thanks cecil, just had a quick look on ebay but can only find someone selling a reel of them!!

the amp works but has distorted output after a few moments... this part has a small hole in it and ohming out very low so a good place to start swapping parts out!

does anyone know what the deal is with diamond audio and esoteric audio? the board has esotric audio on it (was taped over at factory!). this one has #2 on the referance plate so a little special
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Old 18th May 2008, 04:36 PM   #4
marko is offline marko  United Kingdom
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...also, looking at the data sheet PMBTA56 only has 2 legs on one side where as mine has 3 legs
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Old 18th May 2008, 04:51 PM   #5
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I think he meant PZTA56.
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Old 18th May 2008, 04:59 PM   #6
Mooly is offline Mooly  United Kingdom
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If you can identify it spec wise fit a legged part-- it's been done many times before. You have loads of space in there. You can confirm PNP or NPN by comparing with the other side. See what voltages the other has across it and work from there.
If it's got a hole in it there are almost sure to be other failed parts, check and compare carefully before powering up. That transistor on the heatsink in front of it looks discoloured- the PCB at any rate.
Regards Karl
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Old 18th May 2008, 05:12 PM   #7
marko is offline marko  United Kingdom
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that discolouration is flux from 2 new 2sa1303's i fitted (that i didn't need to in the end )
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Old 18th May 2008, 06:31 PM   #8
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The part number came off of my Diamond print for a D7401. But Perry could be right about the part number as he posted it, and the print I have could have a typo. Have you checked WWW.FindChips.com for a search.
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Old 19th May 2008, 05:22 AM   #9
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Just use a leaded equivalent.

Gajanan phadte
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Old 19th May 2008, 05:38 AM   #10
marko is offline marko  United Kingdom
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Quote:
Originally posted by gmphadte
Just use a leaded equivalent.

Gajanan phadte
i'm struggling to find anything to be honest!


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