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Smoke Signal Broadcasting SS50 VDO card 6809

I googled "smoke signal broadcasting" "vdb" and found quite a bit of information.

The Smoke Signal Broadcasting VDB-1 Video Display Board provides the user with a convenient means of displaying information on a standard B/W video monitor The VDB-1 is fully assembled, Endurance-Certified, then tested. It contains all the necessary logic (hardware and software ) for controlling the display. The board comes standard with a character set of 96 ASCII and 32 graphic characters. The user can install his own set of up to 256 character s in EPROM. Additional standard features include:

• 1k EPROM for software drivers
• Reduced intensity or inverted video
• 80 x 24 (1920 characters ) display
• Programmable display rate equivalent to 100 to 50k baud
• Protected fields
• Addressable cursor
• 128 bytes of scratch pad RAM
• 2k video display RAM accessible by the CPU as standard RAM memory

SPECIFICATIONS:
Output Signal: Video ( 1 V p-p into 50 ohms )
Input Volts: 7.5 min, 10 max
Input Current: 0.9A
Size: 22.9 x 14.0 cm (9 x 5.5-in)
Approximate Shipping Weight 9 kg (2 lbs)
 
m_thompson said:
I googled "smoke signal broadcasting" "vdb" and found quite a bit of information.

The Smoke Signal Broadcasting VDB-1 Video Display Board provides the user with a convenient means of displaying information on a standard B/W video monitor The VDB-1 is fully assembled, Endurance-Certified, then tested. It contains all the necessary logic (hardware and software ) for controlling the display. The board comes standard with a character set of 96 ASCII and 32 graphic characters. The user can install his own set of up to 256 character s in EPROM. Additional standard features include:

• 1k EPROM for software drivers
• Reduced intensity or inverted video
• 80 x 24 (1920 characters ) display
• Programmable display rate equivalent to 100 to 50k baud
• Protected fields
• Addressable cursor
• 128 bytes of scratch pad RAM
• 2k video display RAM accessible by the CPU as standard RAM memory
Click to expand...

Thanks, Thats interesting as I have found SSB adverts but not found one with as much info as that.
It would be nice to know what the io addresses are and how the eprom works...
I guess the next step might be to dump it and try dis-assembly...

Dave
 
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