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Opening the backbox

Lift up and out

Pull up on latch

With the machine turned off, remove the back glass to expose the door. The backglass needs to first be unlocked, then lifted straight up till the bottom clears the slot. Then pull the backglass out at the bottom and down to remove it. Store it in a safe place.

Newer machines have a speaker panel below the backglass (translite). Lift straight up on the speaker panel until it becomes free and lay it on the playfield. It may want to slide, so a towel is handy to have around to sit the speaker panel on. Lift the locking bar (or bars) on the door and swing it open. You now have access to the "brains" of the machine. Use your manual to identify the different boards and components.

Open door (better view of latch)

Backbox open




  Removing playfield glass


  With the machine turned off, open the coin door. In the upper right corner of the coin door opening you should find a lever that when pulled to left will unfasten the metal lock bar.

Lift the lock bar straight up. This will expose the bottom end of the glass. Be sure that the glass is not sliding out on it's own and lay the lock bar to the side.

Lever in locked position

Lever in open position


Lift lock bar

Slide glass out

  Lightly press down on the glass and slide it toward you. About half way out you should grab the glass on the sides so that you can hold it up as you side it the rest of the way out. Place the glass in a safe place. If you want to close the coin door, you need to swing the lever that unlocked the lock bar back to the right so that the coin mechanisms do not hit the lever when you close the coin door.


  Lifting the playfield


  Remove the playfield glass. Lift straight up on the bottom metal arch (the part that hides the ball return mechanism). With the playfield lifted a few inches, find the ball kick-out mechanism and with you hand, flip the balls out into the shooter lane. Place the balls in a safe place off of the playfield. Carefully lift the playfield up to about chin high and look under the playfield and determine how the playfield is supported.  

Ball kick-out mechanism

Playfield on support bar



Playfield all the way up

Playfield resting on backbox


Newer machines can be a little different. First of all, you may not be able to flip the balls out before raising the playfield. If you can't find a better way to do it, enter the pinball machine diagnostics program (see your manual) and find the solenoid test for the ball release. When the solenoid fires the ball will be ejected into the shooting lane. Do this for each ball and remove them from the playfield. Most of these newer machines will also have a metal pivot point that will allow the playfield to swing up quite easily. Watch that the top of the playfield does not get caught on the wires running to the backbox.

Older machines generally have some type of shelf that supports the playfield on each side. Take more care raising these since there is really nothing keeping the playfield in the machine other than the wires running to the backbox. A metal bar, usually on the right side of the cabinet, swings up and holds the playfield up. There should be a slight indention in the playfield for this bar to rest in. This bar does NOT give the playfield enough support for anything more than a quick look. You have two options. The first is to tilt the playfield up all the way so that it leans BACK against the backbox. Take it slow and be sure that the playfield is secure before you let go of it. The second choice is to have a rod about 4 foot long (plastic conduit or a short pool cue works fine) and place one end in the bottom of the cabinet near the coin door and the other end secured to something in the center of the playfield. Be careful not to bend anything and that the playfield will stay put. The playfield will usually slide sideways an inch or so till it is caught between the side of the cabinet.

  Playfield supported by pole  

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