; M307 PCB REV B, SCHEMATIC REV C   DUAL INTEGRATING ONE SHOT.
;
; USE SINGLE STEP + OSCILLOSCOPE TO MEASURE PULSES.
; TEST OUTPUT PIN BV1/BV2 IS HIGH WHEN PULSE A/PULSE B IS EXPECTED.
;
; ISOLATE UUT AB2 FROM TESTER,
;   CONNECT UUT AB2 TO -15V (POWER SUPPLY 3RD PIN NEXT TO KEY)
; SHORT AA1 TO AC1 (CONNECTS POT TO C) (SECTION A)
; SHORT AV1 TO AP1 (CONNECTS POT TO C) (SECTION B)
; SWITCH 1 AND SWITCH 2 SELECTS CAP (PULSE RANGE) 
;   POS 5   5 USEC TO  50 USEC
;   POS 4  50 USEC TO 500 USEC 
;   POS 3 500 USEC TO   5 MSEC 
;   POS 2   5 MSEC TO  50 MSEC 
;   POS 1  50 MSEC TO 500 MSEC

PINS
 1 I AR1  ENABLE   (LOW DISABLES BOTH SECTION A AND SECTION B)
 2 I AL1  ENABLE-A (LOW DISABLES SECTION A)
 3 I AJ2  TRIGGER A1, TRIGGER IS ((A1 & (A2-N | A3-N)) & ENABLE & ENABLE-A)
 4 I AK2  TRIGGER A2, TRIGGER IS ((A1 & (A2-N | A3-N)) & ENABLE & ENABLE-A)
 5 I AL2  TRIGGER A3, TRIGGER IS ((A1 & (A2-N | A3-N)) & ENABLE & ENABLE-A)
 6 O AK1  OUTPUT A
 7 O AE2  OUTPUT A-N
 8 I BV1  TEST OUTPUT- PULSE A EXPECTED
 9 I AM1  ENABLE-B (LOW DISABLES SECTION B)
10 I AN1  TRIGGER B1, TRIGGER IS ((B1 & (B2-N | B3-N)) & ENABLE & ENABLE-B)
11 I AS1  TRIGGER B2, TRIGGER IS ((B1 & (B2-N | B3-N)) & ENABLE & ENABLE-B)
12 I AU1  TRIGGER B3, TRIGGER IS ((B1 & (B2-N | B3-N)) & ENABLE & ENABLE-B)
13 O AH2  OUTPUT B
14 O AF2  OUTPUT B-N
15 I BV2  TEST OUTPUT- PULSE B EXPECTED

IIIIIOOIIIIIOOI
110110101011010
; PULSE OUTPUT A (PULSE MAY BE TOO QUICK TO SEE)
  1
   0 XX1
       0
   1
    0XX1
       0
    1
  0
   0
  1  XX1
       0
  0
   1
    0
  1  XX1
       0
  0
   0
  1  XX1
       0
  0
; TEST DISABLES (SECTION A)
 0
  1
   0
    0
 1   XX1
       0
0  
1    XX1
       0
  0
   1
    1

; PULSE OUTPUT B (PULSE MAY BE TOO QUICK TO SEE)
         1
          0 XX1
              0
          1
           0XX1
              0
           1
         0
          0
         1  XX1
              0
         0
          1
           0
         1  XX1
              0
         0
          0
         1  XX1
              0
         0
; TEST DISABLES (SECTION B)
        0
         1
          0
           0
        1   XX1
              0
0
1           XX1
              0
         0
          1
           1
; NO CHANGE
110110101011010
END