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[OT] Help identifying a part

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Byron Servies

[OT] Help identifying a part

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 ;-)

--
73, Byron N6NUL
----
- Northern California Contest Club
- CU in the 2011 Cal QSO Party 1-2 Oct 2011
- www.cqp.org
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Matthew D. Fuller-2

Re: [OT] Help identifying a part

On Sun, Jun 05, 2011 at 03:52:32PM -0700 I heard the voice of
Byron Servies, and lo! it spake thus:
>
> 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.

How about this?

I have just looked through my Panasonic phone equipment manuals,
and all employ devices designated " SAxxx ". On all of them, the
parts list shows " varistor ( surge arrester ) ", so Franc is
definitely right that this is what they are. This being the case,
I would expect them to read open circuit on a normal multimeter.

http://sci.tech-archive.net/Archive/sci.electronics.repair/2006-08/msg00252.html

--
Matthew Fuller, N3TZJ
<[hidden email]>
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Don Wilhelm-4

Re: [OT] Help identifying a part

In reply to this post by Byron Servies

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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Jim Wiley-2

Re: [OT] Help identifying a part

Might be a surge arrestor (varistor). There is a similar appearing
device across the antenna jack on my old Kenwood TS-940.

- Jim, KL7CC

Don Wilhelm wrote:

> 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 ;-)
>>
>>
> ______________________________________________________________
> Elecraft mailing list
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> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>