Parker Brothers Bank Shot

Chip labeled 
TMS1400NLL
MP7313-N2
M 8018
SINGAPORE

die labeled
MP7313

6 buttons: Select/Score, Ball Up, Ball Over, Angle, Aim, Cue Up/Shoot
70 LEDs
speaker

Power on plays tones, LED xx blinks
Pressing select/score, beep and LED stops blinking
Pressing select/score, beep, lights up 2, 3, 4 LEDs, then back to 1
Cue Up/Shoot starts game - game #1 draws 6 LEDs in triangle, Aim draws 3 LEDs

TMS1400 pinout

1  R0   Speaker
2  R1   N/C
3  R2   LED column 
4  R3   LED column 
5  R4   LED column 
6  R5   LED column 
7  R6   LED column 
8  R7   LED column 
9  R8   LED column
10 R9   LED column
11 R10  LED column
12 Vdd  9v battery negative
13 Init diode to Vdd
14 K1   keypad column 1
15 K2   keypad column 2
16 K4   keypad column 3
17 N/C  (K8)
18 N/C  LED row
19 O6   LED row
20 O5   LED row
21 O4   LED row
22 O3   LED row
23 O2   LED row
24 O1   LED row
25 O0   LED row
26 OSC  pin 27 and 100pF cap to batt+ and 24K resistor to batt-
27 OSC  pin 26 and cap and resistor
28 Vss  9v battery positive


keypad matrix
         K1          K2         K4
R3 Select/Score   Ball Up   Ball Over
R2     Angle        Aim    Cue Up/Shoot


LED matrix
8 zig-zag rows by 9 columns, except for the 2 extra LEDs
in the center row, which are O7+R9 for left and O7+R3 for right.
O7+R7 and O7+R5 are not used.

     R10 R9 R8 R7 R6 R5 R4 R3 R2
O0    .     .     .     .     .  
O0       .     .     .     .  
O1    .     .     .     .     .  
O1       .     .     .     .  
O2    .     .     .     .     .  
O2       .     .     .     .  
O3    .     .     .     .     .  
O3 .     .     .     .     .     .
O4    .     .     .     .     .  
O4       .     .     .     .  
O5    .     .     .     .     .  
O5       .     .     .     .  
O6    .     .     .     .     .  
O6       .     .     .     .  
O7    .     .     .     .     .