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Replacement Sub Board (OP01)
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 Posted: Friday Feb 9th, 2024 12:27 pm
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Ghyllwood
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Joined: Friday Mar 27th, 2009
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I have Comfort Mother Board number A017826 (it has it's other half C097167) This board has the 8 output sub board plugged into it, with an 8 pin chip ULN2803A soldered onto it.
3 of the outputs have stopped working, so I can only assume the output IC has failed on this sub board?
Can you tell me if  this plug in sub board can be ordered as a replacement and what is the official description of the module? I would have a go at replacing the 8 pin IC, but there are several other components very close to it
Many thanks  Graham

Attachment: Comfort Sub Board.jpg (Downloaded 6 times)


 Posted: Friday Feb 9th, 2024 12:29 pm
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Ghyllwood
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This is the Sub Board, which I think buffers the 8 outputs?

Attachment: Comfort sub board 2.jpg (Downloaded 6 times)


 Posted: Friday Feb 9th, 2024 11:53 pm
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slychiu
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Yes the part number is OP01 for CM9000.



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