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1. 06:21 AM - Re: AeroElectric-List Digest: 1 Msgs - 09/15/21 (Janet Amtmann)
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| Subject: | Re: AeroElectric-List Digest: 1 Msgs - 09/15/21 |
Thanks Bob, for your analysis. Makes me much more confident about plugging
the radio back into the panel and having communication while flying off my
hours. J=C3=BCrgen Amtmann
On Thu, Sep 16, 2021 at 12:46 AM AeroElectric-List Digest Server <
aeroelectric-list@matronics.com> wrote:
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> Total Messages Posted Wed 09/15/21: 1
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> Today's Message Index:
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> 1. 01:00 PM - Re: COM radio failure (Robert L. Nuckolls, III)
>
>
> ________________________________ Message 1
> _____________________________________
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>
> Time: 01:00:38 PM PST US
> From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
> Subject: Re: AeroElectric-List: COM radio failure
>
> At 04:50 PM 9/1/2021, you wrote:
>
> >>Bob,
> >>
> >>You answered my question about my inoperative GX65 a couple
> >>of weeks ago. It came back from repair with the failed
> >>component (taped to the chassis) that looks like a small
> >>capacitor, not surface mount. It has burn marks on the side,
> >>I can't imagine how I missed it when I looked over the boards
> >>with a 3X loupe. If I sent it to you, (and where would I
> >>send it?) could you possibly identify how this could have
> >>failed? I'm assuming that the radio now works, I have
> >>not installed it yet.
>
> Got a chance to look over the fried capacitor you
> sent. Yes, the darkened condition is strong evidence
> of failure (shorted leading to overheating).
>
> This style of tantalum chip capacitor is almost
> vintage . . . very early package style that was
> replaced with a more robust configuration. Yes,
> it's a surface mounted part. That little pigtail
> is not the remnant of a lead-wire.
>
> I suspect that the replacement part was a
> more modern design but yeah, this was quite
> probably root cause of the radio failure.
>
>
> Bob . . .
>
> Un impeachable logic: George Carlin asked, "If black boxes
> survive crashes, why don't they make the whole airplane
> out of that stuff?"
>
>
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