Tecmo Knight

PCB

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PLD

PLD Information					Credits		Download	View
Dump Method	Target Device	Location	ID	Status	Creator(s)	Tester(s)	Files	Pictures
Bruteforced	GAL16V8	3V (CPU board)	T-3	Tested	Porchy	Porchy	ZIP

Equations

T-3 Equations

/** Inputs **/
Pin	1 = i1;
Pin	2 = i2;
Pin	3 = i3;
Pin	4 = i4;
Pin	5 = i5;
Pin	6 = i6;
Pin	7 = i7;
Pin	8 = i8;
Pin	9 = i9;
Pin	11 = i11;

/** Outputs **/
Pin	12 = o12; /**(Combinatorial, Output feedback output, Active low) **/
Pin	13 = o13; /**(Combinatorial, Output feedback output, Active low) **/
Pin	14 = o14; /**(Combinatorial, Output feedback output, Active low) **/
Pin	15 = o15; /**(Combinatorial, No output feedback, Active low) **/
Pin	16 = o16; /**(Combinatorial, No output feedback, Active low) **/
Pin	17 = o17; /**(Combinatorial, Output feedback output, Active low) **/
Pin	18 = o18; /**(Combinatorial, Output feedback output, Active low) **/
Pin	19 = o19; /**(Combinatorial, Output feedback output, Active low) **/

/** Equations **/

!o12 = !i2 & i3 & i4 & i5 & i6 & i7 & !i8 & i9 & !i11;

!o13 = !i2 & i3 & i4 & i5 & i6 & i7 & !i8 & !i9;

!o14 = !i2 & i3 & i4 & i5 & i6 & !i7 & i8 & i9 & !i11;

!o15 = !i2 & i3 & i4 & i5 & i6 & !i7 & i8 & !i9;

!o16 = !i2 & i3 & i4 & i5 & i6 & !i7 & !i8 & i9;

!o17 = !i2 & i3 & i4 & i5 & i6 & !i7 & !i8 & !i9 & !i11;

!o18 = !i2 & i3 & i4 & i5 & !i6 & !i7 & !i8;

!o19 = i1 & !i2 & i3 & !i4 & i5
     # i1 & !i2 & i3 & !i5;

Reference

• 
  Service manual (no schematics)

Credits

• PCB pictures from eBay