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Coin-Op : Arcade : Phoenix : KB-2054-265

Title

Phoenix Pinout

Author

spies.com

Article

Phoenix
Centuri, 1980

There are two boards to the Phoenix boardset, the logic and the CPU board.
   OVG-15D (Logic board, 12 EPROMs)
   OVG-15U (CPU board, 8085 CPU, 8 pin DIP switch, 36 pin edge connector)

The game is powered using these supply outputs:
+5V DC  @ 11 amps
-5V DC  @ 1 amp
+12V DC @ 2 amps

None of the diagrams nor the manual mention the current requirements of the
game (that is, the amps required for each voltage output).  But my game is
powered by a Peter Chou power supply and the above currents were read directly
off the power supply.

Legend:
CP = Control Panel (12 pin Molex connector, 4 rows of 3)
CH = Coin Harness  (24 pin Amp connector, 4 rows of 6, only 8 are used)
CPU = CPU Board (36 pin edge connector)
MV = Monitor Video (6 pin Molex connector, 2 rows of 3)
PS = Power Supply

According to CPU Harness Interconnect Diagram (364-10-1000):

CPU Edge Connector:
                       SOLDER SIDE  |  PARTS SIDE
------------------------------------|--------------------------------------
                    [to PS] Gnd | A | 1 | Gnd [to PS]
--------------------------------|---|---|----------------------------------
                 [from CP1] Gnd | B | 2 | Gnd [to PS]
--------------------------------|---|---|----------------------------------
                   [to MV1] COM | C | 3 | Gnd [to PS]
--------------------------------|---|---|----------------------------------
                        Speaker | D | 4 | Speaker
--------------------------------|---|---|----------------------------------
                   [to PS] +12V | E | 5 | +12V [to PS]
--------------------------------|---|---|----------------------------------
              (Notch cut here)  | F | 6 |  (Notch cut here)
--------------------------------|---|---|----------------------------------
                                | H | 7 |
--------------------------------|---|---|----------------------------------
                                | J | 8 | +5V [from CH14, to CPU9 & CPUK]
--------------------------------|---|---|----------------------------------
      [to PS and from CPU8] +5V | K | 9 | +5V [to PS and from CPU8]
--------------------------------|---|---|----------------------------------
                                | L | 10|
--------------------------------|---|---|----------------------------------
          P1 Shield [from CP7]  | M | 11| P2 Shield [from CP7]
--------------------------------|---|---|----------------------------------
      2 Player Start [from CP3] | N | 12| R Coin [from CH2 and from CPU13]
--------------------------------|---|---|----------------------------------
      1 Player Start [from CP2] | P | 13| Count [from CH13 and to CPU12]
--------------------------------|---|---|----------------------------------
            P1 Right [from CP4] | R | 14| P1 Fire [from CP6]
--------------------------------|---|---|----------------------------------
             P1 Left [from CP5] | S | 15| Red [to MV2]
--------------------------------|---|---|----------------------------------
                  Blue [to MV4] | T | 16| P2 Right [from CP4]
--------------------------------|---|---|----------------------------------
                 Green [to MV3] | U | 17| P2 Left [from CP5]
--------------------------------|---|---|----------------------------------
                ? Sync [to MV5] | V | 18| P2 Fire [from CP6]
---------------------------------------------------------------------------
 
Notes:
? I don't know whether the sync is + or -.  My game is connected to an
Electrohome G07 monitor.  Sync goes to pin 5 on the monitor's MTA
connector, and there is another short wire going from pin 5 to pin 6.
A person I was conversing with said there was a handwritten negative
sign next to the sync on his schematic, so it may be negative.

Control Panel:  (12-pin molex receptacle)
Pin | Definition
------------------
  1 | Gnd [to CPUB and from CH6]
  2 | 1P Start [to CPUP]
  3 | 2P Start [to CPUN]
  4 | Right [to CPU16 and CPUR]
  5 | Left [to CPU17 and CPUS]
  6 | Fire [to CPU18 and CPU14]
  7 | Shield [to CPU11 and CPUM]
  8 | Unused
  9 | Unused
 10 | Unused
 11 | Unused
 12 | Chassis [to PS and from CH24]

Control Panel diagram:
 1 | Gnd         -------------|
---|----------                |
 2 | 1 Player    ----o/  o----|
---|----------                |
 3 | 2 Player    ----o/  o----|
---|----------                |
 4 | Right       ----o/  o----|
---|----------                |
 5 | Left        ----o/  o----|
---|----------                |
 6 | Fire        ----o/  o----|
---|----------                |
 7 | Shield      ----o/  o----|
---|----------                |
 8 |                          |
---|----------                |
 9 |                          |
---|----------                |
 10|                          |
---|----------                |
 11|                          |
---|----------                |
 12| Chassis     -------------------=O GND

Notes:
a) CHASSIS shares a ground with the coin door (pin 24) and the speaker.
b) all these connections are hooked up in parallel
c) in the diagram --o/  o-- is supposed to represent a switch, =O
represents one of those circular connectors that usually is connected to
true ground.

 
Coin Door:  (24-pin amp connector)
Pin | Definition
------------------
  1 | Unused
  2 | L Coin [to CH3]
  3 | R Coin [to CPU12 and from CH2]
  4 | Unused
  5 | Unused
  6 | Gnd [to CP1]
  7 | Unused
  8 | Unused
  9 | Unused
 10 | Unused
 11 | Unused
 12 | Unused
 13 | Count [to CPU13]
 14 | +5V [to CPU8]
 15 | Unused
 16 | Unused
 17 | Unused
 18 | Unused
 19 | -5V [to PS]
 20 | Gnd [to PS]
 21 | Unused
 22 | Unused
 23 | Unused
 24 | Chassis [to CP12]

Coin door diagram:
 1 |             -------------|
---|----------                |
 2 | L COIN      ----o/  o----|
---|----------                |
 3 | R COIN      ----o/  o----|
---|----------                |
 4 |                          |
---|----------                |
 5 |                          |
---|----------                |
 6 | Gnd         -------------|
---|----------
 7 |
---|----------
 8 |
---|----------
 9 |
---|----------
 10|
---|----------
 11|
---|----------
 12|
---|----------
 13| Count       -------------|
---|----------         RD     |    the rectifier diode points from 13 to 14
 14| +5V         -------------|
---|----------
 15|
---|----------
 16|
---|----------
 17|
---|----------
 18|
---|----------
 19| -5V         -------------|
---|----------        |CC     |O   this is symbol with circle within circle
 20| 0V          -------------|
---|----------
 21|
---|----------
 22|
---|----------
 23|
---|----------
 24| Chassis     ----- Gnd
 
Notes:
a) there is a rectifier diode (I think) between the COUNT and +5V
b) there is something that looks like a circle with a smaller circle
inside and to the left between the 0V and -5V.  Also, the letter O
on the right side of the diagram between pins 19 and 20 is a circle.

--Dave Holcomb


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