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Old Dec 09, 2006, 02:55 PM
Registered User
Athens, Greece
Joined Feb 2005
35 Posts
Help!
Something Broke in my 4-in-1 (c28)

Hi,
there is a rectangular component in my 4-in-1 that says "C28" (just above the Crystal.
Does anyone know what this is cause it's broken after a fall
and i can't find it anywhere?

TIA,
Antonis

P.S. My 4-in-1 is of E-sky's Lama 2 V3
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Last edited by sharkovios; Dec 10, 2006 at 07:14 AM.
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Old Dec 09, 2006, 03:31 PM
Deletedfor proving Nauga wrong
Joined Mar 2005
15,855 Posts
If they used typical circuit board labeling... that would be a capacitor.

You can't just guess about the "value" of the capacitor to replace it... A wide range of capacitors can be the same size. hopefully there is enough left of the old one to read the value off of it. It should have some number followed by uf or pf.

If you can take a pic of the board, pointing out the broken part, someone with the same 4-in-1 could read it off of thiers.
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Old Dec 10, 2006, 06:00 AM
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Joined Jan 2006
196 Posts
I fixed a whole bunch of e-sky 4 in 1 for a local shop.
I don't remember the marking but it's probably the resonator or the discriminator.
If it has 2 leads it's the discriminator.

Hell-e
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Old Dec 10, 2006, 06:56 AM
Registered User
Athens, Greece
Joined Feb 2005
35 Posts
Hi,
Thanks For the replies. Below I have some photos which will be a bit more explaining.



On the PCB it says "CF2", maybe a ceramic filter? i don't know..

Any info will be appreciated.

Thanks,
Antonis
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Old Dec 10, 2006, 11:14 AM
Don L.
Old Lyme, Connecticut
Joined Feb 2006
940 Posts
Quote:
Originally Posted by sharkovios
Hi,
Thanks For the replies. Below I have some photos which will be a bit more explaining.

On the PCB it says "CF2", maybe a ceramic filter? i don't know..

Any info will be appreciated.

Thanks,
Antonis
It looks like a lead sticking down on the left side in the picture - is it a through hole device? If so, is there enough of the other lead left to solder a wire on? If so, you could just solder on a wire, put a glob of epoxy over the connection, and re-use it.

- Don
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Old Dec 10, 2006, 12:23 PM
Registered User
Athens, Greece
Joined Feb 2005
35 Posts
Don Hi,
I tried That too but it's completely torn out..
Thanks Anyway

Antonis
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Old Dec 10, 2006, 05:10 PM
Don L.
Old Lyme, Connecticut
Joined Feb 2006
940 Posts
Quote:
Originally Posted by sharkovios
Don Hi,
I tried That too but it's completely torn out..
Thanks Anyway

Antonis
Antonis,

OK, well for what it's worth, I think its a 455KHZ ceramic discriminator. They are used in many rc devices and rc toys. Here's a link:

http://www.xenon-tech.com/index_epro...products_id=38

I have one that you're welcome to. If you want it, PM your address and I'll get it in the mail.

- Don
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Last edited by dleroi; Dec 11, 2006 at 08:01 AM.
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Old Dec 11, 2006, 09:06 AM
Registered User
Athens, Greece
Joined Feb 2005
35 Posts
Dleroi,

Thanks you've been a great help..
I'll check first in my local shop and if i can't find it i'll pm you.
Thanks Again.
Antonis
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