Connections Multi-T

Explanation is with mask text upsite down

1 Eprom Board connection :
 	placed on the right site of the main board.
 	pin numbers   from down to up 1 to 21
 
	1	A14 74LS30 pen 4
	2	A15 74LS30 pen 5	
	3	A13 74LS30 pen 3
	4	A12 74LS30 pen 2
	5	A11 74LS30 pen 1
	6	A10 2516 pen 19	
	7	+ 5V V+ VCC 74LS30 pen 14,11,12 74LS373 pen 20, 2516 pen 24,21
	8	A9  2516 pen 22 
	9	A8  2516 pen 23
	10	AD0 2516 pen  9  74LS373 pen  3 >  2 2516 pen 8
	11	AD1 2516 pen 10  74LS373 pen 18 > 19 2516 pen 7
	12	AD2 2516 pen 11  74LS373 pen 17 > 16 2516 pen 6
	13	AD3 2516 pen 13  74LS373 pen  4 >  5 2516 pen 5
	14	AD4 2516 pen 14  74LS373 pen  7 >  6 2516 pen 4	
	15	AD5 2516 pen 15  74LS373 pen 14 > 15 2516 pen 3	
	16	AD6 2516 pen 16  74LS373 pen 13 > 12 2516 pen 2
	17	AD7 2516 pen 17  74LS373 pen  8 >  9 2516 pen 1
	18	//Enable 2516 pen20 			
	19	/Alatch  74LS373 pen 11
	20	R/W 74LS30 pen 6 >>>>>>>> 8  2516 pen 18 /CE
	21 	Ground V- VSS 74LS30 pen 7  74LS373 pen 10  2516 pen 12
 
	nb It could be a 64K ram with battery backup and disabling the first 512 bytes 
           for the internal first 128 bytes or 256 (7002) registers (is internal ram)
	above 100 there is  I/O until 117  if it is not  I/O (P24 to P255) you can use it for ram (even in between (P 8 to P12) in memory exp. and Microprocessory mode). 

2 P1 	Presure Censor Bridge input
  	Connection placed on the back at the right site  hor on up 6/7 of the board numbering from left to right 1 to 5 

	1	- input
	2	+ power
	3	+ input
	4 	- power
	5 	ground 	for screening
	  
3 P2 	PS , PS/on , Handle (counts exercise) ,Ser In and out ,   , Haert Beeat in , presure up & down 
	Connection placed on the back at the left site  hor on up 2/3 of the board numbering from richt to left 1 to 10

	1 return keys 	to i/o A0anode V4 and anode V3 and R10 to V+ v4 from power on V3 to  (R11 pull down to V-) then to (i/o A0)
	2 Handle	KB3 ULN2003 3 pen 12 < 5 CD4514 pen  8
	3	from i/o A1 after RC 	presure up	
	4	from i/o A2 after RC	presure down 	NB 3 and 4 used as  signal to 2 relais  over opposite diodes 
	5	Haert Beat in 
	6	serial in  (TTL)
	7	Serial out (TTL)
	8	+ 5V V+
	9     	Ground V- 		
	10	Power on , initial down by V5 and KB2 over keyboard switch , keep on After RC and T1 V6 from i/o A7

4 P3	key bip right side ULN2003 3
	up from i/o A3 after RC 	key bip
	under V-

5 PKB 	Keyboard in (Reset , reset total ,On/off , presure + , presure - )
  	Connection placed on the front at the middle up 7/8  of the underside board numbering from richt to left 1 to 7 

	1	cathode  V4 (to i/o A0)and cathode V5 (initial power on)
	2 ON/OFF 	KB2 ULN2003 3 pen 13 < 4 CD4514 pen 10 	
	3 return keys 	to i/o A0 ,anode V4 and anode V3 and R10 to V+ v4 from power on V3 to  (R11 pull down to V-) then to (i/o A0) 
	4 Presure +	KB4 ULN2003 3 pen 16 < 1 CD4514 pen  7
	5 Presure -	KB5 ULN2003 2 pen 16 < 1 CD4514 pen  6
	6 Reset		KB0 ULN2003 3 pen 15 < 2 CD4514 pen  11
	7 Reset totaal	KB1 ULN2003 3 pen 14 < 3 CD4514 pen  9