Title: NeXT Laser Printer Hiding a nonADB Keyboard Controller?
Post by: barcher174 on November 26, 2018, 09:17:32 PM
Post by: barcher174 on November 26, 2018, 09:17:32 PM
This is one of my more interesting discoveries IMO. Inside the next laser printer is a nonADB keyboard controller chip!
As it turns out next must have dual purposed the same package for different applications.
Here is a comparison of the N4000 monitor sound board along with the interface board from a laser printer:
Here is the keyboard controller hacked into my nosoundADB board and tested to work stand alone:
Cool huh?
As it turns out next must have dual purposed the same package for different applications.
Here is a comparison of the N4000 monitor sound board along with the interface board from a laser printer:
Here is the keyboard controller hacked into my nosoundADB board and tested to work stand alone:
Cool huh?
Title: NeXT Laser Printer Hiding a nonADB Keyboard Controller?
Post by: cubist on November 27, 2018, 11:45:51 PM
Post by: cubist on November 27, 2018, 11:45:51 PM
Mask-programmable controller? Looks to be part of the Sony universe (but fabbed by Motorola).
Title: NeXT Laser Printer Hiding a nonADB Keyboard Controller?
Post by: barcher174 on November 28, 2018, 02:49:51 AM
Post by: barcher174 on November 28, 2018, 02:49:51 AM
It could be. I'm thinking it's likely custom silicon. The keyboard itself uses an IC labeled S38DC007PP01
Title: NeXT Laser Printer Hiding a nonADB Keyboard Controller?
Post by: Rob Blessin Black Hole on November 29, 2018, 12:50:50 AM
Post by: Rob Blessin Black Hole on November 29, 2018, 12:50:50 AM
Hello: It looks like it was available for sale here at some point SON875901427https://encompass.com/item/1737586/Sony/8-759-014-27/ Is it programmable like a ROM?
Can I pull info off of one with my Rom burner?
Can I pull info off of one with my Rom burner?
Title: NeXT Laser Printer Hiding a nonADB Keyboard Controller?
Post by: cubist on December 01, 2018, 01:02:02 AM
Post by: cubist on December 01, 2018, 01:02:02 AM
If mask programmed, unlikely. But it will probably have a simple function. Another reverse engineering project...
Title: NeXT Laser Printer Hiding a nonADB Keyboard Controller?
Post by: msch on March 04, 2019, 06:47:13 AM
Post by: msch on March 04, 2019, 06:47:13 AM
thumbs up!