Personally I would bill the client and under problem discription write
'Pilot Error'.

On 11/30/06, skipp025 <[EMAIL PROTECTED]> wrote:
> This latest Radio Tale comes from a series of Service Calls
> in the last month or two.
>
> The Saga...
>
> Two-way Radio Customers often replace their own fuses when something
> causes their unplanned departure. Often a dead car battery jump start
> can be the source of a radio/equipment fuse vacation.
>
> We also see a lot of wrong size 20 or 30 amp fuses used "just for a
> temp fix"... left in line until something worse happens.  And of
> course we know "worse does happen"...
>
> One not so cute problem we've seen in the last month are a number
> of "half-blown" slow speed (aka "slow blow") 3AG Auto fuses.
>
> The customer reports a radio doesn't work right/well.  Initial
> inspection finds the radio farts out (fails) on tx. The radio
> receives 13 volts dc as measured but acts like the vco fails
> lock in tx mode.
>
> Well...  after much head scratching one of the techs found an
> additional customer installed fuse holder in the wiring harness
> (outside the truck) with an inline 3AG slow blow fuse.
>
> The fuse was half blown..  allowing low current through the internal
> resistor (old fuse type 3AG glass slow-blow fuse with the visible
> internal resistor) although the main fuse internal current path had
> properly opened.  Radio TX mode caused the resultant voltage drop
> and related tx problems.
>
> Replaced the whacky fuse and the tech put the event off as earned
> experienced.
>
>    ****
>
> Onward...
>
> We make and install Kenwood portable vehicle chargers similar to
> "converta com' or pocket chargers, which are provided by us with
> new Pyramid Vehicle Repeater Systems (we install).
>
> One customer reported a problematic drop-in portable charger. I
> replaced the reported trouble pocket because it was brand new and
> shouldn't give us grief. Sometimes it's better to simply replace
> a new unit vs an on site repair with a busy customer standing
> around possibly getting mad.
>
> A week later the customer reported the second new charger pocket
> had the same non-completing charge problem as the first replaced
> charger unit.  Go figure... the measured voltage to the charger
> pocket voltage "appeared normal" with a multi meter.
>
> To wrap things up... the charger pocket was problematic because of
> the same half-open 3ag fuse trick installed by the customer after
> his last truck jump-start. He didn't admit to replacing the fuse
> until after the half-blown slow blow fuse was located and replaced.
>
> Older slow blow fuses are not always 100%.  The half blown fuse is
> a serious problem/issue in a high voltage power supply circuit. At
> low voltage operation they tend to only cost time and money.
>
> The question is... who's time and money should it be?
>
> cheers,
> skipp
>
> skipp
>
>
>
>
>
>
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