Football Electronic Game Model 003201

Chip labeled 
PIC 1655-024
GI 7913
TAIWAN

6 buttons: SCore, STatus, Up, Down, Advance, Kick
1 switch: 1/2 Players
Piezo buzzer
4511 7-segment decoder

27 LEDs
7 digit 7-segment LED

PIC1655A pinout
1  /RTCC   - B0
2  VDD     - 
3  VXX     - VDD
4  VSS     - 
5  TEST    - N/C
6  RA0     - STatus button (other side VSS)
7  RA1     - SCore button (other side VSS)
8  RA2     - 2-player switch (other side VSS)
9  RA3     - common for buttons up, down, advance, kick
10 RB0     - kick button + digit 1/LED column 1 (rightmost) + /RTCC
11 RB1     - advance button + digit 2/LED column 2
12 RB2     - LED column 3
13 RB3     - down button + digit 3/LED column 4
14 RB4     - digit 4/LED column 5
15 RB5     - digit 5/LED column 6
16 RB6     - digit 6/LED column 7
17 RB7     - up button + digit 7/LED column 8
18 RC0     - 7-segment decoder A + LED top row
19 RC1     - 7-segment decoder B + LED middle row
20 RC2     - 7-segment decoder C + LED bottom row
21 RC3     - 7-segment decoder D
22 RC4     - segment DP
23 RC5     - 7-segment decoder /blanking input + LED matrix enable (0=LED matrix, 1=7-segment LEDs)
24 RC6     - piezo circuit
25 RC7     - LED column 9 (leftmost)
26 CLK OUT - N/C
27 OSC     - 33K resistor to VDD, 68pf cap to VSS
28 /MCLR   - cap and resistor


7-segment LEDs
B7 B6   B5 B4 B3   B1 B0
 7  6    5  4  3    2  1


LED matrix
   C7 B7 B6 B5 B4 B3 B2 B1 B0
C0  o  o  o  o  o  o  o  o  o
C1  o  o  o  o  o  o  o  o  o
C2  o  o  o  o  o  o  o  o  o


Piezo circuit
PIC C6 through resistor to base of transistor; emitter grounded, collector to piezo.  Other piezo lead to 4.7uF electrolytic cap +, cap - grounded.