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Re: [OT] Help identifying a part

Posted by Don Wilhelm-4 on Jun 05, 2011; 11:07pm
URL: http://elecraft.85.s1.nabble.com/OT-Help-identifying-a-part-tp6443377p6443418.html

  Byron,

I would guess from the "SA" marking on the board that this is a spark
arrestor of some type.
The rest of the puzzle is not entirely obvious to me.

73,
Don W3FPR

On 6/5/2011 6:52 PM, Byron Servies wrote:

> Hi,
>
> Having build a number of Elecraft kits, I thought I would try to
> tackle repairing my answering machine.  Why not? It's this or buy a
> new one and it might be fun to try and repair it first, despite now
> having to expose my ignorance here.  When a call comes in, the
> answering machine subsystem resets itself on every ring, so something
> in the power isolation between the ring signal and the rest of the
> hardware would seem to be the problem.
>
> The Panasonic KX-TS602B phone actually has a number of through-hole
> components on it's boards and is well labelled.  Right next to the
> ring input is the component in the image linked below.  At first, I
> thought it was a diode, but this feeds in to a set of 4 smaller diodes
> which is probably the AC/DC rectifier for the ring signal.  So, this
> is either a capacitor or an inductor, right?
>
> http://www.flickr.com/photos/motivatedturnip/5802121100
>
> Next to the holes for this component is a label "SA102" and there is a
> directionality arrow pointing from the orange band to the grey band.
> There is a part with identical markings near the DC power input, and
> it has the label "SA101".  My multimeter measures this part as an open
> circuit, regardless of settings (resistor, capacitor, diode in both
> directions), so it might actually be the culprit.
>
> Can anyone help me identify what this part is, so I can look for a
> replacement?  Once you stop laughing, that is ;-)
>
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