Atari SUPER SPRINT - Reassembling the Steering Wheel; Removing the Foot Pedal Controls; Removing the Game Pcbs; Video PCB

Maintenance
Super Sprint
1. Using a 5/16-inch nut driver (or appropriate tool), re¬
move the six screws holding the steering wheel assem¬
bly to the control panel.
2. Using a 7/1 6 -inch nut driver (or appropriate tool), re¬
move the nut and washer from the bottom of the en¬
coder hub.
3. Pull the shaft from the housing.
4. Remove the three screws holding the cover to the
shaft.
5. Remove the 14 -inch x 5-inch screw from the shaft.
Reassembling the Steering
Wheel
Replace the steering wheel parts in the reverse order of
removal. After reassembling the steering wheel, be sure
that the hub can spin freely in the slot of the optical cou¬
pler on the PCB.
Removing the Foot Pedal
Controls
Perform the following procedure to remove/replace the
foot pedal controls. (See Figure 5-6.)
1. Disconnect the foot cable assembly from the cabinet
control harness assembly located inside the coin door
area.
2. Using a 9/1 6 -inch hex driver (or appropriate tool), re¬
move the two bolts and washers holding the foot pe¬
dal frame to the cabinet base. Remove the foot pedal.
3 • Replace the foot pedal in the reverse order of removal.
Removing the Game PCBs
Perform the following procedure to remove/replace the
game PCBs.
-CAUTION-
DO not attempt to remove the CPU and Video
PCBs while they are connected together. If
you are going to remove both of these PCBs,
remove the Video PCB first to avoid damaging
the PCBs or the edge connectors.
Video PCB
Perform the following procedure to remove/replace the
Video PCB. (See Figure 4-3.)
1. Turn the game power off.
2. Unlock and open the lower rear access panel.
3. Remove the four thumb nuts holding the EMI cover
to the ground plane.
4. D isconnect the harness connectors from the bottom
of the Video PCB.
-NOTE-
The brass thumb nuts are easy to cross-thread.
Use care when installing and tightening them.
5. Remove one of the two thumb nuts and spacers hold¬
ing the top of the Video PCB (and the bottom of the
CPU PCB) to the ground plane. Loosen, but do not
remove, the other thumb nut.
6. Remove the two thumb nuts holding the bottom of
the Video PCB to the ground plane. Carefully hold
the Video PCB in place to prevent the PCB from fall¬
ing or causing excessive bending at the edge
connector.
7. Remove the remaining thumb nut and spacer that
was loosened in step 5. Gently disconnect the Video
PCB from the CPU PCB.
8. Replace the Video PCB by first connecting the Video
PCB to the CPU PCB edge connector. Carefully po¬
sition both the Video and CPU PCBs so that the holes
(in the bottom of the CPU PCB and at the top of the
Video PCB) are aligned. Partially install one thumb
nut and spacer through both of the PCBs and into
the corresponding ground plane post.
9. Install and tighten the two thumb nuts holding the
bottom of the CPU PCB to the ground plane.
10. Install the remaining thumb nut holding the top of
the Video PCB (and bottom of the CPU PCB) to the
ground plane.
11. Finger-tighten both thumb nuts holding the top of
the Video PCB (and bottom of the CPU PCB) to the
ground plane.
12. Connect the harness connector to the bottom of the
Video PCB.
--NOTE-
To comply with emission requirements, the
Federal Communications Commission re¬
quires that the Video PCB Assembly be
housed in the EMI cover. Do not operate this
game without properly installing the EMI
cover, metal spacers, and thumb nuts.
CPU PCB
Perform the following procedure to remove/replace the
Central Processing Unit (CPU) PCB, (See Figure 4-3.)
4-6