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BlackNightActualRom
BlackNightActualRom
 
 
Will7ver3
Will7ver3
 
 
Williams_1980_Black_Knight_ROM_L_4
Williams_1980_Black_Knight_ROM_L_4
 
 
Williams_1980_Black_Knight_ROM_L_4_Update
Williams_1980_Black_Knight_ROM_L_4_Update
 
 
bk_l4
bk_l4
 
 
pincoder_roms_2021.03.31.1434
pincoder_roms_2021.03.31.1434
 
 
6809Edatasheet.pdf
6809Edatasheet.pdf
 
 
6820_hardware_manual.pdf
6820_hardware_manual.pdf
 
 
6821 Datasheet.pdf
6821 Datasheet.pdf
 
 
README.md
README.md
 
 
Will7ver3.zip
Will7ver3.zip
 
 
Williams_1980_Black_Knight_English_Manual_with_paginated_schematics.pdf
Williams_1980_Black_Knight_English_Manual_with_paginated_schematics.pdf
 
 
Williams_1980_Black_Knight_ROM_L_4.zip
Williams_1980_Black_Knight_ROM_L_4.zip
 
 
Williams_1980_Black_Knight_Schematic_Diagrams_paginated.pdf
Williams_1980_Black_Knight_Schematic_Diagrams_paginated.pdf
 
 
Williams_1980_Parts_Catalogue.pdf
Williams_1980_Parts_Catalogue.pdf
 
 
bk-display-wiring-sys7.pdf
bk-display-wiring-sys7.pdf
 
 
bk_l4.zip
bk_l4.zip
 
 
pinball_troubleshooting_sys6b.pdf
pinball_troubleshooting_sys6b.pdf
 
 
pincoder_roms_2021.03.31.1434.zip
pincoder_roms_2021.03.31.1434.zip
 
 
sys7.pdf
sys7.pdf
 
 

Repository files navigation

Black Knight Pinball information:

General Pinball information:

Black Knight Links and Documentation

Williams Troubleshooting information:

Diagnostic Equipment

Pinball Restoration

Instructions (LINK)

  1. Mylar Removal. -- Not Required. However, there might be a section on glue removal.

    After you get the Mylar off, pat down the residue glue with white baking flour. Really press it into the glue, and let it sit a few minutes.

    Next, wet the flour with 91% or higher isopropyl alcohol, and allow it to sit until most of the alcohol has evaporated.

    Starting at the edge rub all the glue into little crumbs with your thumb.

    Even the inserts clean up easily with this method.

  2. Touchup Playfield Paint Createx Colors Airbrush Paint - 22 Colors and Cleaner - 2 oz Grafix Extra Frisket Film for Airbrushing, Retouching, Stencils, Rubber Stamping, Watercolors, and Masking Harbor Freight Deluxe Airbrush Kit Water Oil Separator Filter Airbrush Filter Moisture Separator for Air Line Compressor Fitting, 1/4 Inch NPT Inlet and Outlet (3)

  3. Decals Sunnyscopa Waterslide Decal Paper for LASER Printer - WHITE, US LETTER SIZE 8.5"X11", 20 SHEETS, STANDARD - Personalized Water Slide Transfer - DIY Custom Printable Water-Slide Decals

  4. My wife talked me out of touching up the playfield and box.

Black Night:

Items Replaced:

  1. MPU Board

    1. Battery with external 3 alkaline battery holder.
    2. IC-20, ROM
    3. IC-17, Flipper ROM
    4. IC-9 (74LS245), Data Bus Transceiver
    5. IC-7 (7404), Miscellaneous
    6. IC-1 (6808), MPU -- Original might not be bad.
    7. IC-18 (6821), PIA

  2. Driver Board

    1. Q35 (TIP122), (11)
    2. Q41 (TIP122), (14)
    3. Q45 (TIP122), (16)
    4. Q31 (TIP122), (9)

  3. Connectors

    1. 40-Pin Board Connector

    2. All other connectors

  4. Sound Board

    1. Sound - Speech connection/cable
    2. Chrystal Oscillator
    3. New Sound Board
    Part Number Description Price Quantity Total
    41815BE-10 Connector, 0.156", Receptacle $0.70 5 $3.50
    2420-10-2260 Connector, 0.156" Header, 10 Pin $0.65 5 $3.25
    CS156-04-LR Connector, 0.156" Plug, 4 Pin $0.12 2 $0.24
    09-50-8091 Connector, 0.156" Plug, 9 Pin $0.54 2 $1.08
    26-48-1241 Connector, 0.156" Header, 24 Pin $1.35 1 $1.35
    26-48-1242 Connector, 0.156" Header, 24 Pin, Right Angle $1.35 1 $1.35
    09-50-8031 Connector, 0.156" Plug, 3 Pin $0.18 1 $0.18
    CS156-04-LR Connector, 0.156" Plug, 4 Pin $0.12 3 $0.36
    09-50-8061 Connector, 0.156" Plug, 6 Pin $0.36 1 $0.36
    09-50-8091 Connector, 0.156" Plug, 9 Pin $0.54 18 $9.72
    CS156-12-LR Connector, 0.156" Plug, 12 Pin $0.36 2 $0.72
    CS156-15-LR Connector, 0.156" Plug, 15 Pin $0.45 1 $0.45
    08-52-0113 Crimp Contact, 0.156", Trifurcon, 18-20AWG $0.10 250 $25.00
    15-04-0219 Keying Plug, 0.156", Large $0.12 10 $1.20
    15-04-0297-STRIP Keying Plug, 0.156", Small, Strip of 20 $2.00 1 $2.00

  5. Rubber Bands Complete set.

Script

  1. Initial Power On: All Solenoids Powered on.

    1. Extra Plug, Header not found.
      1. Found part of the switch circuit. I think.

  2. Battery Alkaline Corrosion.

    • Clean up Corrosion.
    • Add in the Battery Back
    • On Order
    • Install Diode
    • Install on Machine

  3. Replace Darlene Transistor on the Driver Board (TIP121)

    1. Q35 (11), Q41 (14), Q45 (16) and Q31 (9)

  4. Second Power on.

    1. General Lighting.

    2. LED Display "0" and LED Lights are on.

      1. Indicates that there is a ROM problem.

      • Check the ROM address and data lines.

      • Buy ROM Set. https://mattsbasementarcade.com/product/bk1-sys7-roms/

      • Install 2732 EPROM for IC 17.

        The 2732 series also has a 4 K × 8 organization and is compatible with the 2532 IC; however, it requires a slight modification. If you compare the datasheets of the two chips, using the links below the page, you will notice that pin 18 and pin 21 appear reversed.

        On the 2732, pin 21 is A11; this should be in the place of pin 18 where the chip enable pin is. It is possible to connect this pin to the correct place by bending it so that it does not fit into the chip socket, and then soldering a small length of wire to connect it to the correct place.

      The factory release of most System 7 MPUs contained a 2532 PROM at IC17. The more common 2732 is easy to use, with minor board modifications.

      img

      Component side of a System 7 MPU board with modifications for a 2732 at position IC17

      img

      Solder side of a System 7 MPU board with modifications for a 2732 at position IC17

      1. On the component side of the board, move jumper 22 to jumper 23. This amounts to moving the jumper down one position.
      2. On the solder side of the board, cut the fat trace that grounds pin 21.
      3. Jumper from the via labeled "22" to pin 21 of IC17. Be sure that the jumper doesn't short to the jumper previously moved on the component side.
      1. Found solution (CPU isn't booting up)
        1. Check out all of the Data lines J1 with Digital analyzer. The Reset Address is being read.
        2. The VMA line is continuously high.
        3. With the 40 pin IC Test Clip. Found that garbage data is being sent to the MPU.
        4. Followed the lines to the Data Bus Buffer 74LS245 Octal Bus Transceiver IC Chip.
          1. Data good on the component side
          2. Data garbage on the MPU side
          3. Removed the Data Bus Buffer
          4. Jumper the Data Lines from the CPU to the components.
            1. The MPU boots and reads the Reset address.
            2. Insert and Boot with Game
              1. #2 on LED when reset is performed
              2. #9 on LED when the Diagnostic button is pressed.
          5. Remove the Jumper wires.
          6. Replace 74LS245 with new 74LS245.
          7. Still does not boot.
        5. The ~(R/~W) line is flakey need to change the hex inverter 7404
          1. Remove the jumper wires.
          2. Replace the 7404 with 74HC04
        6. CPU Boots up
          1. Install all ROMS/RAM/PIAs
          2. Install the Solenoid Board
          3. Boots up with LEDs and Numeric Display off. (Good boot).

    3. Install the CPU and Solenoid Boards back in the system.

      1. Starts up in Diagnostic Mode and cycle through the Diagnostic to game over mode.

        1. Game Over Lights cycle

        2. Coin Buttons works and give credits

        3. Play Game Button does not work,

        4. Perform Diagnostic

          1. Flippers work.

          2. Scores for Player 1 and 3 have digits out

            1. Need to change players 1 and 4.

            2. Buy new LED Displays

              1. https://xpinpinball.com/product/williams-system-7-9-displays-orange/

                1. $199.00

                2. This one contains commas like the original Williams.

                3. Dimmer.

                4. Need to checkout the version.

                  Supported Games:

                  Algar, Alien Poker, Barracora, Black Knight, Comet, Cosmic Gunfighter, Firepower II, Jungle Lord, Laser Cue, Pharaoh, Solar Fire, Sorcerer, Space Shuttle, Star Light, Time Fantasy, Warlok,

                  NOTE: Some WMS games used a D-10749 display driver board. The XP-WMS8363 driver board has been designed to incorporate the same connections that exist on the D-10749 board, therefore it is a direct replacement.

              2. https://www.wolffpactech.com/product-page/williams-system-7-9-display-kit-orange-digits

                1. $149.99

                2. Need to build

                3. No Commas

                  This display will replace the displays used on Williams System 6A, 7, or System 9 pinball machines that use the C-8363/C-8364/C-8365 displays. This kit replaces all 5 displays used on these machines. Note, these displays cannot be mixed with the original displays and must replaced as a set.

              3. https://www.marcospecialties.com/pinball-parts/PS-8363-P

                1. $235.99

          3. Play lights works

          4. Sound works

          5. Solenoids don't work

            1. 2.5 AMP fuse blown
            2. Replace the Solenoids
            3. Solenoids all work.

          6. Switches are questionable.

            1. Switches which are shorted fixed
            2. Switch not working fixed except for the Left/Right Kicker and the Pop Bumper

        5. MPU Board no longer work.

        6. CPU is working.

        7. Replace PIA IC18. CPU Is back up working.

        8. Game Play Button not working correctly.

          1. Needs 3 Balls for it to work
          2. The right Ball Switch wasn't making contact. (Microswitch). Messed around with it and it started to work.
          3. Game Play Button not registering in the switch Diagnostic.
            1. All buttons on the first column of the switch matrix not registering.
              1. Green Brown wire loose.
              2. Trace it back to the Solenoid board connection.
              3. Re-seated the connector 2J2.

        9. BLACK KNIGHT is WORKING

        10. First Target on the lower right bank switch isn't working.

          1. Clean contact with 3x5 card
          2. Moved the connector a little laterally.
          3. Working.

        11. Leaf Switch for Kick-out work intermittently.

          1. Look like it has been relocated because the screw thread stripped
          2. Clean contact with 3x5 card.
          3. Front screw thread stripped.
          4. Performed the same trick as above. Moved the connector laterally.
          5. Working.
          6. http://actionpinball.com/parts.php?item=SW-1A-130

    4. BLACK KNIGHT now PLAYABLE

    5. Credit Button Not working

      1. Diagnostics - Credit Button Not working, Tilt, etc.
        1. Switch Matrix Column 1 not connected
          1. Re -seat Plug 2J3
      2. Diagnostics - Center Ball Ramp Switch 18, note working
        1. Switch Matrix Row 2 Not Connected.
          1. Re-seat Pub 2J3

    6. While playing, the Black Night stops playing and all lights are out.

      1. Blanking Circuit ?
      2. MPU/Driver Interconnect Pins?
      3. Replace the 40-pin inter-board connector.
      4. Replaced the Switch Row and Column connector on the driver board.

    7. When activating the Right Flipper, the lights go out and stop playing.

      1. Check the easy stuff first.

        • Check bottom flipper, top flipper or both flipper.

        • End of stroke switches on all four flippers.

        • Check ohms on all of the flippers make sure they are about the same. https://flippers.com/coil-resistance.html

          Solenoids Part Number Reference Ohms Main Ohms Middle Ohms EOS Ohms
          Bottom Right SFL19-400/30-750 0.7/25 0.8 0.1 0.8
          Bottom Left SFL19-400/30-750 0.7/25 0.8 0.1 0.8
          Top Right SFL19-400/30-750 0.7/25 0.7 0.1 0.8
          Top Left SFL-23-600/30-2600-DC? 2.8/73.4 3.0 0.6 2.4
      • Right Flipper Switch 2J12 Pin 1 (Orn/Vio) --> 8J3 Pins 3 (Blu/Vio) and 15 (Blu/Yel)
      • Check out the power to see if the power drops below specs prior to going blank.
        1. Found that the logic power drops from 4.3 to 3.8 when the right flippers are applied. Measured on the CPU board TP 9.
        2. The Left Flippers logic power drops 4.3 to 3.9.
        3. The logic power (TP1) on the Power Supply board is 4.98 volts with 3J6 removed. Also removed 3J6 (12 pin) also has 4.98 volts.
        4. Reseat 3J6 and the Flippers work without messing up the machine.
        5. Outside Temperature was 75.
      • Need to check when the temperature is above 90 degrees.
      • Need to check logic power(TP1) with 3J6 plug installed.

    8. Fixes from above. (5-7)

      1. Replace the MPU/Driver interconnect Pins/Plugs.
      2. Replace the Switch Matrix Connector Plugs with trifurcated pins.
      3. Everything seems to be working better.

    9. Move Pinball machine to the basement.

    10. Replace the power cord with a better rated plug.

    11. Loosing its mind.

      1. symptoms
        1. Every once is a while black knight looses its mind.
          1. Lights don't work
          2. Wrong lights flash Column 2?
          3. Solenoids start going off
            1. Ball shooting
          4. One time I caused it by tilting the machine.
          5. 7-digit display showed "7".
      2. Fixes

  5. Solenoid Fuse keep blowing.

    1. Replace Fuse.
    2. Found that the Coin Door Relay was running hot.
      1. Cut out the Relay and Stored wires.
    3. The Lower Left Drop Targets Power on and off, then fuse blows.
    4. Reprogrammed the ROMs.
      1. Multiple passes in the programming (3+).

  6. Some words no long working.

    1. Removed and the ribbon cable connector on the memory board is broken.
      1. Part is not availble
    2. Options

      1. Replace the connector with a regular 40-pin IDE Plug.

        1. ROM Board holes does not fit the 40-pin IDE Plugs. Need to create a daughter board. Not easy.

      2. Buy new sound board

        1. Found a source without cable and with ROMs. Sound & Speech Board => System 6/7
        2. Price $185.00
    3. Sound Board Failed (No Sound or Speech)
      1. Initial work Replace 40 Pin connector
        1. Replace the 40-pin connector on the sound board.
        2. Built a new 40-pin connector on the speech side.
      2. Power supply
        1. The board takes 12v and -12v.
        2. My AT -12 volts is burnt out.
        3. Connected the portable 12 v power to make -12.
        4. Note that the AT power only supplies 9 volts.
        5. Connections to hook up my variable mini-power supply to supply +12V and -12V:
          1. AT 12V --> Sound Board 12V
          2. AT Ground --> Sound Board Ground and Power Supply + Lead
          3. Power Supply Ground to Sound Board -12V.
        6. Another interesting note is that the AT power will shut off when 12V or Ground is disconnected.
        7. Lessons learned: Get a real power variable power supply
      3. Sometimes it works, most of the time it doesn't work.
      4. Analysis
        1. Found that the 6809 processor is working. D0-D7 has a signal.
        2. No signal is produced from the PIA 6821 to the DAC on the sound board.
        3. No signal is produced from the PIA to the DAC on the Speech Board (Serial?)
        4. Connect Logic analyzer to the PIA
          1. D0-D7
          2. PA0-PA7
          3. R0 & R1
    4. Dead 6802 Sound Processor not working.
      1. Try a different 6802 and it still does not work.
      2. The Crystal Oscillator doesn't seem to be working correctly. Don't know how to check it.
      3. After ordering a new Sound Board, bought $0.50 Crystal Oscillator. This worked to start up the processor.
      4. Installed in the machine and the sound board is working. Still having a $180 sound board arriving in the mail tomorrow.
    5. Bought new Sound Board for the Black Knight for $180.
    6. Now have 2 working Sound/Speech boards.

Information

  1. Coin door closed (or pin 1J4-1 or 1J3-1 is being grounded)
  2. Bottom Button on the MPU contains the Diagnostic.
  3. Sends a Non-Maskable Interrupt (NMI) to the processor
  4. IC Addresses
# IC (New) Type Address Size
IC13 2114 RAM 0x0000 1024x4
IC16 2114 RAM 0x0000 1024x4
IC19 5101 RAM 0x0100 256x4
IC26 2316 (????) ROM 0x5800 2048x8 (16384)
IC14 2316 (????) ROM 0x6000 2048x8 (16384)
IC20 2316 (2716) ROM 0x6800 2048x8 (16384)
IC17 2332 (2732) ROM 0x7000 4096x8 (32768)

  1. Address Map

    Device Device ID Description Addresses Chip Select
    RAM 2114 IC 16 Working Memory? 0000 - 0400 Z000 ZZxx xxxx xxxx
    Z Address lines not included
    RAM 2114 IC 13 Working Memory? 0000 - 0400 Z000 ZZxx xxxx xxxx
    Z Address lines not included
    RAM 5101 IC 19 Saved Memory 0100-01FF Z000 ZZ01 xxxx xxxx
    Z Address lines not included
    PIA 1 IC 18 Display PA - 2800
    CRA - 2801
    PB - 2802
    CRA - 2803    		 CS0 - VMA/ A13
    CS1 - A14
    !CS2 - A11
    RS0 - A0
    RS1 - A1
    PIA 2 IC 11 (Driver) Switch Matrix PA - 3000
    CRA - 3001
    PB- 3002
    CRA - 3003    		 CS0 - VMA/ A13

    CS1 - A12
    !CS2 - A14
    RS0 - A0
    RS1 - A1
    PIA 3 IC 10 (Driver) Lamp Matrix PA - 2400
    CRA - 2401
    PB - 2402
    CRA - 2403    		 CS0 - VMA/ A13
    CS1 - A10
    !CS2 - A14
    RS0 - A0
    RS1 - A1
    PIA 4 IC 5 (Driver) Solenoids PA - 2200
    CRA - 2201
    PB - 2202
    CRA - 2202    		 CS0 - VMA/ A13
    CS1 - A9
    !CS2 - A14
    RS0 - A0
    RS1 - A1
    PIA 5 IC 36 Sound, Comma PA - 2100
    CRA - 2101
    PB - 2102
    CRA - 2102    		 CS0 - VMA/ A13
    CS1 - A8
    !CS2 - A14
    RS0 - A0
    RS1 - A1
    ROM 2316 IC 26 GAME ROM 0 5800-58FF
    		 0101 1xxx xxxx xxxx
    ROM 2316 IC 14 GAME ROM 1 6000-67FF Z110 0xxx xxxx xxxx
    ROM 2316 IC 20 ROM NO 1 6800-6FFF Z110 1xxx xxxx xxxx
    ROM 2332 IC 17 ROM NO 2 7000-7FFF Z111 xxxx xxxx xxxx
    FPROM IC 22 NOT USED 6200
    FPROM 3624 IC 21 NOT USED 6000

  2. Reset and Interrupt Vectors (Located on IC17)

    Description Address (Chip IC17) Values
    Reset FFFE FFFF (7FFE 7FFF) E800 (6800)
    Non-Maskable Interrupt
    Bottom Button on PC Board (SW 1)    		 FFFC FFFD (7FFC 7FFD) FF2B (7F2B)
    Software Interrupt FFFA FFFB (7FFA 7FFB) E0C2 (60C2)
    Interrupt
    NOT CORRECT PIA Pin 37 (IRQB) or Pin 38 (IRQA)    		 FFF8 FFF9 (7FF8 7FF9) E0BF (60BF)

  3. Switch Part Numbers:

    Part Number Page Locations
    SW-1A-141 6-7
    SW-10A-50 6-1
    SW-10M-50 6-3
    SW-11A-35(R) 6-3
    SW-1010A-13 6-2
    SW-1A-114 6-5
    SW-1A-117 6-1
    SW-1A-119 6-5
    SW-1A-122 6-1
    SW-1A-124 6-6 Rollover Lanes (inlanes/outlanes as well)
    SW-1A-125 6-7
    SW-1A-126 6-6
    SW-1A-127 6-3
    SW-1A-130 6-4 Bottom Ball Kick-Out
    SW-1A-130-1 6-4 Drop Targets
    SW-1A-136 6-2 2nd Ball Runway Switch (typical, depending on game)
    SW-1A-137 6-8 3rd Ball Runway Switch (typical, depending on game)
    SW-1A-138 6-2 Shooter Lane Switch
    A-4834-K-1 6-12
    B-B306-1 6-14
    3640-06137-00 ???
    1. Blanking Circuit
      1. 555 Timer is in monostable mode.
        1. This will keep the output high with a regular pulsed input.
        2. Output pulse will be used by the formula
          1. T = 1.1 * R1 * C1, R1 in ohms and C1 in farads
          2. The schematic is: T = 1.1 * 33K * 1.0uf T = 1.1 * 33,000 * .000001 T = 0.0363 seconds or 36.3 ms
      2. After all of the connector replaces. The pinball machine is a lot more stable.
      3. But, after the machine has been on for a few hours. The Blanking circuit activated and it died. The machine shot out a new ball prior to blanking.
        • Option 1 - Bad ROM
        • Option 2 - Bad component in the Blanking Circuit \
        • Option 3 - Bad PIA

ROM Programmer

  1. EEPROMS
    1. 2716 - 2716(25V VPP)
    2. 2732 - 2732(21V VPP)

Footnotes:

About

This is the description and fixes for the 1980 Black Knight pinball machine.

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