Difference between revisions of "Defender"
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Line 96: | Line 96: | ||
**#RW (Read/Write) - PIA Pin 21 | **#RW (Read/Write) - PIA Pin 21 | ||
**#D5 - PIA Pin 28 | **#D5 - PIA Pin 28 | ||
− | **Reset(NOT) - PIA Pin 34 | + | **#Reset(NOT) - PIA Pin 34 |
**#D2 - PIA Pin 31 | **#D2 - PIA Pin 31 | ||
**#+5vdc (Power for board) - PIA Pin 20 | **#+5vdc (Power for board) - PIA Pin 20 |
Revision as of 15:05, 6 January 2020
Released - 1981
Contents
Upright Cabinet
- Overall Dimensions/Weight
Height | Width | Depth | Weight |
---|---|---|---|
72" | 26" | 32.5" (32 1/2") | 265 lbs. |
- Marquee Information
Height | Width |
---|---|
7.75" (7 3/4") | 24.375" (24 3/8") |
- Control Panel Information
Joystick: 2-way - Leaf Switch (up, down) Buttons: 5 Fire-Thrust-Reverse-Hyperspace-Smart Bomb
Cocktail Cabinet
- Overall Dimensions/Weight
Documentation
Drawings/Schematics
Early Drawings
Later Drawings
- Front Cover
- Table Of Contents
- Board Layout Diagram 1
- Board Layout Diagram 2
- MPU Layout Diagram 1 (R8570)
- MPU Layout Diagram 2 (Parts List) (R8570)
- MPU Schematic/Logic 1 (R8570)
- MPU Schematic/Logic 2 (R8570)
- Interface/Widget Board (C8573)
- ROM Board Layout Diagram (D8572)
- ROM Board Schematic (D8572)
- Power Supply Diagram (D8359)
- Power Supply Schematic (D8359)
- Cabinet Power Schematic
- Power Board Diagram (D8373)
- Early Sound Board Diagram/Layout (D8121)
- Early Sound Board Schematic (D8121)
- Later Sound Board Diagram/Layout (D8224)
- Later Sound Board Schematic (D8224)
- Manual Stored Here
- Parts Catalog Stored Here
Boards
ROM Board
Interface Board (I/O, Widget)
Description: The interface board is used to provide input ports that allow the physical connection of user inputs from the Control Panel. This board uses a 6821 PIA (peripheral interface adapter) that digitizes all inputs and provides to the MPU board when requested.
- Jumpers
- W1
- Is used to identify to the system if the game is an Upright or Cocktail
- W1 Removed - Cocktail Game - Screen Flip and unique controls (+5v Pull-Up resistor to PIA)
- W1 Installed - Upright Game - 2 Players share same controls, no screen flip (Connects PIA input to Ground)
- Notes: Green Rom Version has no support for Cocktail Mode
- W2
- Is used to allow the program to enable or disable the Multiplexers (Muxers)
- W2 should always be connected there is no reason to remove jumper
- Connections
- 20 pins
- 2 are Ground (Pin 10 on both headers)
- 2 are cut as keys to prevent the wrong connector from being installed (3J3 - 9, 3J2-6)
- Upright (Green and Red ROM Versions)
- 3J3 Connector (Lower closest to ribbon cable - Pin 1 is lowest)
- Ribbon Cable - Pinout
- D4 - PIA Pin 29
- NMI(NOT) - PIA No Connection
- D7 - PIA Pin 26
- FIRQ(NOT) - PIA No Connection
- D6 - PIA Pin 27
- RW (Read/Write) - PIA Pin 21
- D5 - PIA Pin 28
- Reset(NOT) - PIA Pin 34
- D2 - PIA Pin 31
- +5vdc (Power for board) - PIA Pin 20
- D1 - PIA Pin 32
- D0 - PIA Pin 33
- D3 - PIA Pin 30
- E(Enable) - PIA Pin 25
- PIA(NOT) - PIA Pin 23 via IC4(14049 Hex Inverter Pin 11 to 12)
- Ground - PIA Pin 6
- A0 - PIA Pin 36
- A1 - PIA Pin 35
- A2 - PIA Pin 24
- A3 - PIA Pin 22 via IC4(14049 Hex Inverter - Pin 9 to 10)