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Replacement wiring harnesses for
Gottlieb System 1 and System 80 pinball machines

 

Brand new wiring harnesses built with 100% new parts.
Quite often these need to be replaced as the pins in them get damaged or have corrosion on them.

Please read the installation instructions >>>Click Here<<<

 

Gottlieb System 1: Power Supply to MPU

$9.00 Each
Sys 1 Harness
PS to MPU

 

 

Gottlieb System 1: MPU to Driver
$27.00 Each
Sys 1 Harness
MPU to Driver

 

Gottlieb System 1: MPU to Driver with diode protection

 

Just like the MPU/Driver Harness above, but with built in diodes to protect your MPU from blown solenoid driver transistors.

Take a look at this picture of a System-1 Driver. You'll notice the seven circled diodes. These diodes are there to protect your MPU in case a driver transistor should fail and allow solenoid voltage (24 VDC) to travel from the driver board to the MPU. Should this happen, your MPU would suffer damage. Early System-1 Drivers did not have these diodes, and there are many of these boards out there. Eventually Gottlieb realized their mistake and revised the board. If your System-1 Driver does not have the diodes, then you run the risk of MPU damage should a driver transistor short out. The three choices you have are: Replace your driver with one of the later revisions that have the diodes, install diodes on your board, or leave it as is and hope the bad stuff never happens to you. Now there's a 4th option: Buy one of these System-1 MPU to Driver harnesses with built-in diode protection. Wired in-line with each solenoid data line is a 1N4004 silicon diode which will block all voltage coming back up from the Driver to the MPU. The diodes will not interfere with the normal operation of the two boards. In fact, should you use a protected harness and then later get a revised driver, the harness will still work. Please notethe Ni-Wumph driver board is incompatible with this harness, but it is also undeeded.

 

 

$34.00 Each
Sys 1 Harness w/Diode protection
MPU to Driver

 

 

Gottlieb System 80: Power Supply to MPU

$9.00 Each
Sys 80 Harness
PS to MPU

 

 

Gottlieb System 80: MPU to Driver

$38.00 Each
Sys 80 Harness
MPU to Driver

OUT OF STOCK!!!!

HOUSINGS ARE OBSOLETE
TRYING TO FIND MORE!
If you have a harness you'd like
to send in to get repinned, email me.

 

 

 

 

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