#Gottlieb volcano Pc

5.6.9 Using a PC Power Supply For Bench Testing.5.6.8 Connecting a logic probe to the MPU.5.6.7.3 An Alternate to the Daughter Board on System 80B MPU Boards.

5.6.7.2 System 80B Daughter Board Replacement Options.5.6.7.1 Continuity Chart of Pinouts for Damaged U2 / U3 Area.5.6.7 System 80B Daughter Board Solder Joints.

#Gottlieb volcano generator

5.6.5 Using a Reset Generator for the CPU Reset Section.

5.6.4 Relocating the battery from the MPU board.

5.6.2 Erratic Boot Issues with Later 80B Games (Hot Shots, Bad Girls, and Big House).

5.5.6 F2 Fuse Blows At Power Up on 80A games.

5.5.5.7 System 80 First Generation 'Sounds Only' Sound Board LED's.

5.5.5.6 System 80/80A Power Supply Board LED.

5.5.5.5 Sound/Speech Power Supply Board LED's.

#Gottlieb volcano driver

5.5.5.4 Auxiliary Lamp Driver Board LED.

5.5.5 Optional Bling.Adding Power Indicating LED's to Boards.

5.5.4 Recommended Repairs for the System 80B Power Supply Board.

5.5.3 Recommended Updates and Repairs for the System 80/80A Power Supply Board.

5.5.2 Sporadic / Inconsistent / Missing Voltages.

5.5.1 Replacing the Orange Filtering Capacitor.

5.4.2.3 Ground Improvements for System 80B at the Transformer Panel - 'Arena' to 'Bone Busters'.

5.4.2.2 Ground Improvements for System 80B at the Transformer Panel - 'Tag Team Pinball' to 'Spring Break'.

5.4.2.1 Ground Improvements for System 80A / 80B at the Transformer Panel - 'The Games' to 'Bounty Hunter'.

5.4.2 Recommended Ground Improvements for System 80B.

5.4.1.1 Grounds Improvements for System 80A at Transformer Panel.

5.4.1 Recommended Ground Improvements for System 80/80A/80B Boards.

5.3.1 Adding Ground and 5V Connections to Interconnect Harness.

5.3 The CPU / Driver Board Interconnect Harness.

5.2.2 Alternate Method of Replacing (Repinning) System 80 Connectors.

5.2.1 Replacing (Repinning) System 80 Connectors.

4.7.6 System 80B Sound Board (one button).

4.7.5 System 80B Sound Board (two button).

4.4.5 5th Generation CPU Board (System 80B).

4.4.4 4th Generation CPU Board (System 80A).

4.3.2 System 80 / 80A Sound & Speech Power Supply.

4.2 System 80 / 80A / 80B Satellite Boards.

3.7.2 Pausing the Lamp and Solenoid Test (System 80B Only).

3.7.1 Default High Score To Date (HSTD).

3.6.4.1 Free Play Diode Board Modification.

3.4.3 The 'Missing' GottliebВ® System 80 Switches.

3.1.2 Theory of Operation & Repair Guides.

Either way, I'd need a schematic for this board that looks like a reject from a Flintstones trailer park (see attached pic). So, I figure I have two choices: get one of the replacements and make an adapter from the exisiting pigtail, or fix the existing one. I was considering a replacement from PBResource, but it appears to have a card-edge connector, whereas mine has a pigtail connector labeled A7-J10, which connects to an inline plug labeled A7-P10. I'm getting 6.8VDC instead of +12, 8.2VDC for +30, but the -12 and +5 are fine the result is some pretty psychedelic sound effects.

Apparently some PO switched out the main board and sound board in the past, but left the original sound board power supply, which is not producing the right voltages now. I suspect that it's a re-import of a German export: It has the word 'Foreign' stamped on the particleboard base plate that holds the power supply components, and a notice inside the head not to use a sound-and-speech board, lest it be damaged. I got this machine from CraigsList, no idea of its history.