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Welches SMD Bauteil? Graupner MC15 ; Überspannungschaden
Suche nach: smd (5472) bauteil (9957) |
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BID = 366660
olilam
Gerade angekommen
Beiträge: 7
Wohnort: Belgium
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There are no markings anymore on the componenents...
And the picture above does not include the same part of the board. Perhaps someone that has a mc-15 can take a look and give me the markings? Or a schematics...
Many thanks,
Olivier |
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BID = 366695
:andi:
Inventar
Beiträge: 3205
Wohnort: Bayern
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hey olilam,
you could contact the poster of the original picture via PM to get more photos.
Also check the diode left above the burnt 3-leg part. It's 2-tone colouring looks suspicious to me.
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"Gestern gings noch, da kann net viel sein" |
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BID = 366697
olilam
Gerade angekommen
Beiträge: 7
Wohnort: Belgium
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OK, it's done. I would like to check that component too but I need a reference for the comparison...
Thanks anyway,
Olivier
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BID = 367052
olilam
Gerade angekommen
Beiträge: 7
Wohnort: Belgium
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According to a guy who owns a working mc15, the component on the bottom part of the photo is a diode with C1 marking (with white dash corrseponding to the cahtod on the bottom)while the one on the top is a transistor with EY marking. Any idea of which classical component I can use to replace them ?
Thanks.
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BID = 367064
olilam
Gerade angekommen
Beiträge: 7
Wohnort: Belgium
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EY seems to be:
BCW65HR by siemens
with the following characteristics
npn 45V 800mA hfe 240 min
Any well known transistor matching that?
Could not find C1 as a diode but found an article on this forum https://forum.electronicwerkstatt.d.....fsSMD that seems to be related to my problem. There they are talking about 1N4148: is that a correct replacement for C1?
Thanks
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BID = 367072
perl
Ehrenmitglied
Beiträge: 11110,1
Wohnort: Rheinbach
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When comparing device codes you must always also carefully check the package.
If your C1-"Diode" comes in the SOT-23 Package, then in real life it ist propably a BCW29LT1 npn-Transistorfrom Motorola.
Can you read the Marking on the bigger device near to it, so we might guess what the purpose of the C1 thing was ?
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Haftungsausschluß:
Bei obigem Beitrag handelt es sich um meine private Meinung.
Rechtsansprüche dürfen aus deren Anwendung nicht abgeleitet werden.
Besonders VDE0100; VDE0550/0551; VDE0700; VDE0711; VDE0860 beachten !
[ Diese Nachricht wurde geändert von: perl am 6 Sep 2006 16:07 ]
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BID = 367095
olilam
Gerade angekommen
Beiträge: 7
Wohnort: Belgium
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I will check the markings of other components this evening (when I am at home) but the component with C1 marking seems to be a two pins component, so probably not a transistor.
Thanks
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BID = 367248
olilam
Gerade angekommen
Beiträge: 7
Wohnort: Belgium
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OK... I removed the burnt components and tried to take a picture with more details. I have also removed the varnish on smd to be able to see the markings.
The component near the 2-pins burnt component is marked 406. The one at its left is marked D0KW.
I searched a lot on internet for SMD with codes C1 and EY... C1 never leads me to something acceptable (2 pins). I cannot find something able to replace the EY.
Here is the new pic http://users.skynet.be/bk267032/repair.JPG
Thanks
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