Today's Message Index:
----------------------
1. 08:20 AM - Re: aeroflash strobe repair (Robert L. Nuckolls, III)
2. 08:57 AM - Re: aeroflash strobe repair (C&K)
3. 09:18 AM - Re: aeroflash strobe repair (FLYaDIVE)
4. 10:02 AM - Re: aeroflash strobe repair (C&K)
5. 10:23 AM - Re: aeroflash strobe repair (FLYaDIVE)
Message 1
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| Subject: | Re: aeroflash strobe repair |
At 01:39 PM 7/22/2018, you wrote:
>
>It looked like a modern metal film resistor to me. Mounted parallel
>with the circuit board with a light conformal coating. No evidence
>of it getting hot, discolored, or mechanically stressed. In fact
>there was no evidence of anything on the circuit board running hot.
>This unit was 12 years old and bolted to the main spar in the
>outboard wing bay. The other failed unit was about 8 years old at
>the time and has continued working OK since the repair. Both units
>were almost certainly from the same production run.
Interesting! By the way, do you happend to
have a schematic and/or maintenance manual
on the device?
Bob . . .
Message 2
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| Subject: | Re: aeroflash strobe repair |
No I could not find any documentation.
Ken
On 23/07/2018 11:19 AM, Robert L. Nuckolls, III wrote:
> At 01:39 PM 7/22/2018, you wrote:
>>
>> It looked like a modern metal film resistor to me. Mounted parallel
>> with the circuit board with a light conformal coating. No evidence of
>> it getting hot, discolored, or mechanically stressed. In fact there
>> was no evidence of anything on the circuit board running hot. This
>> unit was 12 years old and bolted to the main spar in the outboard
>> wing bay. The other failed unit was about 8 years old at the time and
>> has continued working OK since the repair. Both units were almost
>> certainly from the same production run.
>
> Interesting! By the way, do you happend to
> have a schematic and/or maintenance manual
> on the device?
>
>
> Bob . . .
>
Message 3
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| Subject: | Re: aeroflash strobe repair |
And to make things even more difficult; The circuit board is conformally
coated - NOT IN CLEAR! A rusty brown. Getting below the coating to read
the component and values becomes a surgeon's job.
Barry
On Mon, Jul 23, 2018 at 11:19 AM, Robert L. Nuckolls, III <
nuckolls.bob@aeroelectric.com> wrote:
> At 01:39 PM 7/22/2018, you wrote:
>
>
> It looked like a modern metal film resistor to me. Mounted parallel with
> the circuit board with a light conformal coating. No evidence of it getting
> hot, discolored, or mechanically stressed. In fact there was no evidence of
> anything on the circuit board running hot. This unit was 12 years old and
> bolted to the main spar in the outboard wing bay. The other failed unit was
> about 8 years old at the time and has continued working OK since the
> repair. Both units were almost certainly from the same production run.
>
>
> Interesting! By the way, do you happend to
> have a schematic and/or maintenance manual
> on the device?
>
>
> Bob . . .
>
Message 4
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| Subject: | Re: aeroflash strobe repair |
Mine just had an amber colored coating that I could see through.
If it helps anyone there are 3 resistors mounted in a row perpendicular
to the edge of the board near where the 3 wires connect that go to the
flash tube.
The middle resistor was the problem one.
Ken
On 23/07/2018 12:17 PM, FLYaDIVE wrote:
> And to make things even more difficult; The circuit board is
> conformally coated - NOT IN CLEAR! A rusty brown. Getting below the
> coating to read the component and values becomes a surgeon's job.
>
> Barry
>
> On Mon, Jul 23, 2018 at 11:19 AM, Robert L. Nuckolls, III
> <nuckolls.bob@aeroelectric.com <mailto:nuckolls.bob@aeroelectric.com>>
> wrote:
>
> At 01:39 PM 7/22/2018, you wrote:
>> <yellowduckduo@gmail.com <mailto:yellowduckduo@gmail.com>>
>>
>> It looked like a modern metal film resistor to me. Mounted
>> parallel with the circuit board with a light conformal coating.
>> No evidence of it getting hot, discolored, or mechanically
>> stressed. In fact there was no evidence of anything on the
>> circuit board running hot. This unit was 12 years old and bolted
>> to the main spar in the outboard wing bay. The other failed unit
>> was about 8 years old at the time and has continued working OK
>> since the repair. Both units were almost certainly from the same
>> production run.
>
> Interesting! By the way, do you happend to
> have a schematic and/or maintenance manual
> on the device?
>
>
> Bob . . .
>
>
Message 5
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| Subject: | Re: aeroflash strobe repair |
THANK YOU KEN!!!
I have two or three AeroFlash PS's.
I will LQQK for them.
Barry
On Mon, Jul 23, 2018 at 1:02 PM, C&K <yellowduckduo@gmail.com> wrote:
>
> Mine just had an amber colored coating that I could see through.
> If it helps anyone there are 3 resistors mounted in a row perpendicular to
> the edge of the board near where the 3 wires connect that go to the flash
> tube.
> The middle resistor was the problem one.
> Ken
>
> On 23/07/2018 12:17 PM, FLYaDIVE wrote:
>
>> And to make things even more difficult; The circuit board is conformally
>> coated - NOT IN CLEAR! A rusty brown. Getting below the coating to read
>> the component and values becomes a surgeon's job.
>>
>> Barry
>>
>> On Mon, Jul 23, 2018 at 11:19 AM, Robert L. Nuckolls, III <
>> nuckolls.bob@aeroelectric.com <mailto:nuckolls.bob@aeroelectric.com>>
>> wrote:
>>
>> At 01:39 PM 7/22/2018, you wrote:
>>
>>> <yellowduckduo@gmail.com <mailto:yellowduckduo@gmail.com>>
>>>
>>> It looked like a modern metal film resistor to me. Mounted
>>> parallel with the circuit board with a light conformal coating.
>>> No evidence of it getting hot, discolored, or mechanically
>>> stressed. In fact there was no evidence of anything on the
>>> circuit board running hot. This unit was 12 years old and bolted
>>> to the main spar in the outboard wing bay. The other failed unit
>>> was about 8 years old at the time and has continued working OK
>>> since the repair. Both units were almost certainly from the same
>>> production run.
>>>
>>
>> Interesting! By the way, do you happend to
>> have a schematic and/or maintenance manual
>> on the device?
>>
>>
>> Bob . . .
>>
>>
>>
>
>
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