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• GLASS PARTS
Wear protective gloves and use both hands when carrying or moving parts made of glass.
Fluorescent tubes and CRTs will usually implode if broken. Glass pieces can fly eight feet (two
meters) or more from the point of impact.
• FLUORESCENTTUBE, STARTER, OR FLUORESCENT LIGHT ASSEMBLY
Remove the backglass and translite. Remove both plastic lamp locks. Grasp the bulb at each end
and give it a quarter tum. Gently pull the bulb straight out to remove it from its socket. The starter
also requires a quarter tum for removal. Do not force the bulb or starter during reinstallation. Clean
the bulb to remove fingerprints and dust, then reinstall the translite and backglass.
To remove the entire light fixture, remove the lamp locks and the bulb as described above.
Disconnect the fluorescent light assembly connector from its power cable. Remove the screws that
hold the assembly to the cabinet, then lift out the assembly.
Hyou drop a fluorescent tube or a CRT and it breaks, it will implode! Use care in handling.
• CIRCUIT PROTECTION
To avoid equipment damage, any replacement fuse must match the original in fuse type, voltage
rating, and current rating. Do not use fuses with different time delay characteristics.
• MONITOR
Unlock and remove the backbox rear door. Disconnect all of the cables going to the monitor.
Remove the four flange nuts securing the monitor's mounting brackets to its mounting panel.
CAREFULLY, Pull the monitor from the backbox. Clean the face of the monitor before reinstallingit.
&CAUTION
THE VIDEO MONITOR IS HEAVY,WITH MOST OF THE WEIGHT TOWARD THE FRONTOF THE
ASSEMBLY. Be sure it is firmly supported as it is removed from the cabinet. The monitor does
require isolation from the A.C. line voltage in normal operation. When operating outside the backbox
or servicing the monitor on a test bench, YOU MUST ISOLATE THE MONITOR FROM LINE
VOLTAGEWITH A TRANSFORMER. THE MONITOR MUST BE POWERED AT 110V.
• LUBRICATION
The two main lubrication points of the Ball Release mechanism are the pivots for the arm. The
mechanisms of other playfield devices are somewhat similar to the Ball Release, and have the same
lubrication requirements. A medium viscosity oil (switch target grease) is satisfactory for these
devices.
Because of the functional design (arm-actuated via solenoid plunger operation), the pivot points of the
Left and Right Kickers (·Slingshots·) all require lubrication as a regular serviCing procedure.
Lubrication to ensure proper operation also applies to the target blades of the Drop Targets. MBI
Instrument Grease, also known as Drop Target Switch Lubricant, with a Williams' part number of
E1165,is a recommended lubricant.
• SWITCH CONTACTS
Playfield Switches.
For proper game operation, switch contacts should be free of dust, dirt,
contamination, and corrosion. Blade switch contacts are plated to resist corrosion. Cleaning blade
switch contacts requires gentle closing of the contacts on a clean business card or piece of paper,
and then pulling the paper about 2 inches, which should restore the clean contact surface. Adjust the
switch contacts to a 1/16-inch gap.
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