Atari Repair

Note: This page is a work in progress. Please help get it to a completed state by adding any useful information to it.

1 Introduction

Put system info here

2 Games

Put list of games that used this system here (including anything that might not have been pinball)

3 Technical Info

Things like Data East's controller board was a copy of William's System 11 with some changes would go here.

4 Problems and Fixes

4.1 Power Driver Issues

This may not apply to some, as MPU might have been part of it.

Pertains to Atari "Superman" pinball:

All playfield coils except for the flippers do not work. Chip B4/5 (CD4013) is the solenoid enable select. Replacing it restored all playfield coils to normal operation.

Solenoid driver transistors are type 2N6041.

Lamp driver transistors are type MPS-A06.

5 =MPU Issues

Pertains to Atari "Superman" pinball.

Switch matrix problems: many switches not recognized or operating one switch triggers several other switchs. Replace chips H7 (74LS244), E6 (7407), and D6 (7407).

Battery holder corrosion: There is a 3 AA battery holder made of aluminum that will corrode over time causing loss of battery backed data like replay scores and bookkeeping. Drill out the four rivets and unsolder the two terminals to remove the old battery holder. A new, seperate 3 AA battery holder with wire leads can be mounted near the board. The wire leads will solder directly to the + and - terminals on the MPU board. No blocking diode needed as Atari's system relies on ordinary alkaline AA batteries.

6 Power Supply Issues=

Pertains to Atari "Superman" pinball:

Fuses:

F1 Machine main power fuse, 5 amp slow blow, located on metal box on bottom of cabinet. F2 Service Outlet fuse, 2 amp slow blow, located on metal box on bottom of cabinet. F3 To BR1 & C1 (50 volts dc to coils), 15 amp slow blow, located in backbox. F4 To BR2 (+7 volts circuit), 15 amp slow blow, located in backbox. F5 To BR3 & C2 (+12 volts circuit), 7 amp slow blow, located in backbox. F6 For 6 volts AC general illumination circuit, 15 amp slow blow, located in backbox. Note: some machines may be incorrectly labeled as a 10 amp slow blow fuse. Fuseholder may tend to burn up. F7 Center tap of 6 volt circuit, 1 amp slow blow, located in backbox.

All three bridge rectifiers are type MDA3501.

6.1 Display Driver Board

Possibly doesn't apply to some, can't think of an example.

7 Game Specific Problems and Fixes

Example would be servo controller on Independence Day pinball

8 Repair Logs

Did you do a repair? Log it here as a possible solution for others.