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Unknown decoder


Northpoint
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I was going through my DCC box the other day and came across this.

There is no brand/ID on it. The only thing written on it is CONTROL 9.

Presumably it is a stationary decoder of some sort and an ID would be useful.

Anybody any ideas?

 

20220517_151320.jpg

20220517_151314.jpg

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What does the PCB silkscreen say for the connections to the 6-pole screw terminal?

 

I don't think it's a DCC decoder, but could be wrong.

 

The quality of the soldering and lack of cleaning suggests it was built from a kit.

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It's probably a relay driver board

 

The ULN2003 is a 7 output 50v/500mA open collector driver IC with 5v TTL input logic, which will come from the PIC 16F684

There is a 7805 (5v Voltage Reg), which suggestes the supply might be 12v DC or more. There isn't a bridge so DC seems likely

There is a LED marked IR out which suggests Infra Red operation somewhere.

 

What's the markings on the other terminal strip?

Edited by melmerby
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