Reverse engineering

bertus

Joined Apr 5, 2008
21,681
Hello,

It looks like a bunch of the same pcb's.
Write out one by following the connections on the board between the components.

Bertus
 

atferrari

Joined Jan 6, 2004
4,473
All those "satellite" circuits look very similar.

Identify any IC and any other components even if you have zero idea of what they are.

First identify the common. (The golden rule that always worked for me).

Next, if you can have it powered and running, identify all points connected to Vcc.

As member nsaspook said, could be easier to replicate the functionality instead of the circuit. Had I to build one, that would be my way.
 

Papabravo

Joined Feb 24, 2006
17,296
Not worth the time or the trouble to "reverse engineer". It is way harder than you can imagine. Especially if the markings on the chips have been ground off or are covered with a blob of epoxy.
 
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