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Scope: Includes Gottlieb pinball System 80, 80a, 80b games from Spiderman (1/80) to Bone Busters (8/89). The most popular System 80 games that this information particularly applies to are Black Hole (10/81) and Haunted House (2/82).

Internet Availability of this Document.
Updates of this document are available for no cost at http://marvin3m.com/fix.htm if you have Internet access. This document is four parts (part one, part two, part three, part four).

IMPORTANT: Before Starting!
IF YOU HAVE NO EXPERIENCE IN CIRCUIT BOARD REPAIR, YOU SHOULD NOT TRY TO FIX YOUR OWN PINBALL GAME! Before you start any pinball circuit board repair, review the document at http://marvin3m.com/begin, which goes over the basics of circuit board repair. Since these pinball repair documents have been available, repair facilities are reporting a dramatic increase in the number of ruined ("hacked") circuit boards sent in for repair. Most repair facilities will NOT repair your circuit board after it has been unsuccessfully repaired ("hacked") by you. If you aren't up to repairing your circuit boards yourself, refer to the parts & repair web page for help.

Table of Contents

0. Getting Started:
1. Introduction, Schematics, Books
2. System 80 Games List, Numbers
3. System 80 Parts to have on-hand
4. Check the Coil Resistance.

1. Mandatory Fixes:

1. Circuit Board Defects
2. Power Supply Fix
3. Battery Replacement/Corrosion (CPU board Reset/Clock Circuits)
4. Ground Problem Fix (CPU and Driver board)
5. Connector Problems
6. Pop Bumper Driver Board Fixes and Mods
7. Pull Up Resistor Addition
8. Check the Coil Resistance.

2. Suggested Fixes:

1. Kicker Solenoid Fuses/Switch Arc Fix
2. Haunted House Up Kicker Fix
3. Protecting Display "Nipples"
4. Permanently "fixing" the Slam Switch

3. Other Information and Fixes:

1. Testing Transistors (and Driver Board Info)
2. Transistor Info/Substitutes
3. Fuse List for HH/BH
4. CPU Board Revision Mods
5. Score Displays
6. Auxiliary Lamp Driver Board
7. Repair Comments (General, Sound, Solenoids)
8. Black Hole Motor Fix
9. Haunted House Trap Door
10. System 80 Reset Board
11. Setting Free Play
12. Black Hole Solenoid Test Correction
13. Switch Matrix for Haunted House
14. Transistor/Coil List for HH/BH
15. Connector/Transistor/Coil List for HH/BH
16. CPU Connector Pinouts
17. Dip Switch Settings
18. Bookkeeping and Self Test
19. Replacing CPU board U2/U3 ROMs to EPROMs.
20. Updating old CPU boards.
21. Gottlieb Rubber Part Number/Size Chart.

4. Systematic Gottlieb System 80 Circuit Board Repair

• Fixing the System80 CPU board.
• Fixing the System80 Sound and Speech board.

• Gottlieb Service Bullentins, Gottlieb, 1980 to 1990.
• Gottlieb Star Series 80 Service Manual, 1982. Available from Pinball Resource.
• John Robertson web articles.
• Black Hole/Haunted House Gottlieb System 80 Club of America, J. Cook, 1994.

Thanks goes to the following people that helped with this document. This includes Rob Hayes, John Robertson, and Pascal Janin.