SYSTEM 7 MPU EXCLUSIVE JUMPER PAIR LIST

 

FROM THE SCHEMATICS THESE ARE MUTUALLY EXCLUSIVE JUMPERS: 

3-4-5,  6-24,  7-8,  9-10-28,  11-12,  13-14-15,  16-17,  18-1920-21,  22-23,  26-27.

FACTORY JUMPERS ARE:  2, 25, 29-30

 

UNDERLINED TEXT settings are for standard System 7 pinball games

All System 7 games use 2532 EPROMs at IC17 and 2716 EPROMs at IC14, IC20 and IC26. 

Underlined Settings Include System 6: With Flipper ROMs at IC17 and a Game ROM at IC14

IC17: 2532 4K EPROM @ $7000-$FFFF (SYSTEM ROMs) Typically Flipper ROMs 1&2
IC20: 2716 2K EPROM @ $6800-$6FFF (SYSTEM ROMs)
IC14: 2716 2K EPROM @ $6000-$67FF (GAME ROMs)
IC26: 2716 2K EPROM @ $5800-$5FFF (GAME ROMs)

 

BOLD are settings for exceptions including Defender, Hyperball and Star Light (D,H,SL).

These games used 3 x 2532 EPROMs at IC14, IC17 and IC20.  IC26 was not used.

IC20: 2532 4K EPROM
IC17: 2532 4K EPROM
IC14: 2532 4K EPROM

 

IC14      3 or 4 or 5:  IC14 Base Address

                3-IN 2K 2716 EPROM @ $6000-$67FF

                4-IN 2K 2716 EPROM @ $6800-$6FFF - not normally used.

                5-IN 4K 2532 EPROM @ $6000-$6FFF  ( D,H,SL)

 

                6 or 24:  IC14 Chip Select  CS(2) pin 18

                6-IN CS(2) to GND (held low)

                24-IN CS(2) to A11 ( D,H,SL)

 

IC17       11 or 12:  IC17 Base Address

                11-IN 4K 2532 EPROM @ $7000-$7FFF  +( D,H,SL)

                12-IN 2K 2716 EPROM @ $7800-$7FFF - not normally used.

 

                22 or 23:  IC17 Chip Select  CS(2) pin 18

                22-IN CS(2) to A11    +( D,H,SL)

                23-IN CS(2) to GND (held low) - not normally used.

 

IC20      9 or 10 or 28:  IC20 Base Address

                9-IN 2K 2716 EPROM @ $7000-$77FF - not normally used.

                10-IN 2K 2716 EPROM @ $6800-$6FFF

                28-IN 4K 2532 EPROM @ $5000-$5FFF ( D,H,SL)

 

                26 or 27:  IC20 Chip Select  CS(2) pin 18

                26-IN CS(2) to GND (held low)

                27-IN CS(2) to A11 ( D,H,SL)

 

IC26       13 or 14 or 15:  IC26 Base Address:

                13-IN 2K 2716 EPROM @ $6800-$6FFF - not normally used.

                14-IN 2K 2716 EPROM @ $5800-$5FFF - "Gated with A11" +( D,H,SL)

                15-IN 2K 2716 EPROM @ $6000-$67FF - not normally used.

 

                16 or 17:  IC26 Address Line A9 pin 22

                16-IN IC26 A9 to +5v (held high) - not normally used.

                17-IN IC26 A9 to A9  +( D,H,SL)

 

                18 or 19:  IC26 Chip Select  CS(2) pin 18

                18-IN CS(2) to +5v (held high) - not normally used.

                19-IN CS(2) to GND (held low) +( D,H,SL)

 

                20 or 21:  IC26 VCC(2) pin 21

                20-IN VCC(2) +5v (held high) +( D,H,SL)

                21-IN VCC(2) to A9  - not normally used.

 

MISC. FACTORY SET JUMPERS:  2, 7-8, 25, 29-30

2:         2-OUT is the factory setting.  Never used. 

                Located to Right of 2114 RAM IC13.  Would connect IRQ to IRQ'

 

7 or 8:  8-IN, 7-OUT  is the factory setting.  

                IC7 Bypass from IC18 PIA I. 

 

25:          25-IN is the factory setting.  

                This jumper grounds PIA IC36 pin 9.  Pin is not used.

 

29 or 30  29-IN, 30-OUT  is the factory setting.  

                 Located to Right of PIA IC36.  IRQ/ST8 connection at pin 19.  Pin is not used.

You can leave the factory jumpers as they are.

 

These are Williams games that used the Level 7 MPU:

Black Knight                     

November 1980

Jungle Lord                        

February 1981

Pharaoh                              

May 1981

Black Knight LE                 

June 1981

Solar Fire                            

July 1981

Barracora                            

September 1981

Hyperball                           

December 1981

Thunderball                       

May 1982

Cosmic Gunfight              

June 1982

Varkon                                

September 1982

Warlok                                 

October 1982

Defender                           

December 1982

Time Fantasy                    

March 1983

Joust                                    

April 1983

Firepower II                      

August 1983

Laser Cue                           

February 1984

Star Light                            

June 1984