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Old 05-09-12, 12:35 AM   #24
Acuario
Apprentice EcoRenovator
 
Join Date: May 2011
Location: Tortosa, Spain
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Quote:
Originally Posted by AC_Hacker View Post
Do you have a schematic for your interface board?

I'd like to see if I can make some sense out of my Sanyo.

Thanks,

-AC
Here it is. The device that interfaces from the TTL logic to the power leads is the HF6 3EB - probably a custom device as I can't find any reference to it anywhere. The rest is just basic RS232 to TTL level conversion stuff.

The CUT is where I break the comms from the internal unit to be able to send my own commands.

The CLK signal from the HF6 doesn't appear to be doing much as the data isn't synchronised to it in any way. It runs at 100Hz. I may be wrong but for the moment I'm not worrying about it.

Nigel
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