In data aprile 2018 alle ore 18:38:13, ha scritto:

On Thu, 05 Apr 2018 09:55:00 +0200, blisca wrote:

Hello

please,i need to repair a circular PCB board inside the rotating camera
head of a robot,a small tractor for sewage inspection.The brand is
Pearpoint,model 494/04,part of S.C.S Ex94C1001 & 1002
http://s000.tinyupload.com/?file_id=...85001783462747
An internal short circuit,probably due to iron dust,generated
heat,enough
to burn away the golden plated track and carbonize the PCB

Repairing it requires to redraw and rebuild the PCB,it would be good if
someone has the spare part,or the service manual,because i could do
errors
in redraw the burned tracks and vias

Many thanks

Diego

The solution

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I see eleven traces in that picture. Is there room for a slip ring?
See this link: https://www.adafruit.com/product/1196
This slip ring assembly has twelve conductors rated at 240 volts and 2
amps. Twenty dollars US.
Eric

Thanks for the help good people,
All your very interesting hints deserve to be read again with attention,
and annotated.
ALL the proposed solutions are very interesting
I admit to ignore the existence of the slip ring that by its price and
availability is worth the attempt,in parallel of possible development the
PCB,maybe not from CAD-Gerbers but directly from 1:1 images.
In this case if impossible to have the appropriate golden plating
finishing,i could
take advantage about the small difference in having 1 or 8
boards;replacing the board periodically is not so difficult and it is not
a production machine that have to rotate thousand of times daily

Thanks again
Diego