[Skimmertalk] RU9CZD skimmer QS1R died in the recent thunderstorm. Help needed.

[Bob Wilson, N6TV]

Probably.  But before you replace the USB chip, measure the output of the
voltage regulators.  The voltage regulators have failed in many QS1Rs that
use SkimSrv, especially if there was no heat sink or cooling fans added
after it was received.

Don't be misled by a "USB error" displayed by SkimSrv.  That message can be
displayed for almost any failure.  It does not usually mean that the USB
chip is bad.  It may be OK.

73,
Bob, N6TV

On Thu, Aug 12, 2021, 10:20 PM Igor Sokolov <ua9cdc at gmail.com> wrote:

> Bob
>
> Here is what datasheet says: (link to datasheet -
> https://static.chipdip.ru/lib/260/DOC000260334.pdf)
>
> Software: 8051 code runs from:
> ❐Internal RAM, which is downloaded through USB
> ❐Internal RAM, which is loaded from EEPROM
> ❐External memory device (128 pin package)
>
> So you recon the internal 8051 is loaded through USB or from external
> memory when connected to  a computer?
>
> 73, Igor UA9CDC
>
>
> 12.08.2021 23:50, Bob Wilson, N6TV пишет:
> > That is the USB transceiver chip, so I imagine it does not need any
> > firmware installed.
> >
> > But if there was lightning nearby while the antenna was connected,
> > many more chips could be damaged.
> >
> > 73,
> > Bob, N6TV
> >
> >
> > On Thu, Aug 12, 2021 at 11:20 AM Igor Sokolov <ua9cdc at gmail.com
> > <mailto:ua9cdc at gmail.com>> wrote:
> >
> >     RU9CZD skimmer is off line as our trusted QS1R that have been
> >     serving us
> >     for many years went out of order during recent thunderstorm. We would
> >     like to try and fix it. The suspect is CY7C6813A. This chip is
> >     available
> >     locally but the question is, does it need some sort of firmware
> >     installed prior to soldering it in. Is this firmware available from
> >     somewhere? Help would be highly appreciated.
> >
> >
> >     73, Igor UA9CDC
> >
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