Benchmark Games Monster Drop Chaos User manual

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Table of Contents
REVISION HISTORY..........................................................................................................................................2
BASIC COMPONENTS ......................................................................................................................................3
GAME PLAY/ SEQUENCE BEHAVIOR ...............................................................................................................4
GAME SETUP...................................................................................................................................................6
MAIN ELECTRONIC COMPONENTS .............................................................................................................. 15
TECHNICAL OPERATION............................................................................................................................... 20
PROGRAMMING OPTIONS........................................................................................................................... 22
ERROR CODES AND TROUBLESHOOTING GUIDE ......................................................................................... 26
ASSEMBLIES AND DIAGRAMS ...................................................................................................................... 31

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REVISION HISTORY
-01/22/16: REV-A: Created.
-02/03/16: REV-B: Small revision for first release.
-02/24/16: REV-C: Changed Chaos feature shipping arrangement and added wiring positions for
all switches.
-04/19/16: REV-D: Cover page updated and coin per credit changed.
-08/31/16: REV-E:
-06/26/17: REV-F: Changed Images with old revision parts.
Benchmark Games Inc. holds exclusive copyright in the Hardware and Software contained within
this game machine. Benchmark also owns the copyright in the ARTWORK DESIGNS, MUSIC, and
original SOUND EFFECTS that are incorporated in the game machine. No part of this artwork, music,
sound effects, images, displays, software or firmware may be reproduced in any way without the
express written permission of Benchmark Games Inc. Benchmark Games Inc. also retains other
various intellectual property rights in the game machine including pending patent rights, trade press
rights and trademarks.
PERSONS WISHING TO MAKE USE OF ANY OF THE INTELLECTUAL PROPERTY DESCRIBED ABOVE
SHOULD CONTACT BENCHMARK GAMES INC. IN THE FIRST INSTANCE.
Every effort has been made to ensure that the information contained within this manual is accurate.
Benchmark Games Inc. reserves the right to make alterations without prior notice.

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BASIC COMPONENTS
Monster Drop Chaos is a new spin to the Monster drop game. Players have to drop a ball onto the
wheel and try to time it correctly to win big time scores. The wheel, located in the middle of the
playfield, has 18 value holes including two designated “Chaos” features. When the Ball lands inside the
“Chaos” hole an event occurs in which 18 balls descend from the carrier, above the playfield, and
bombard the wheel with the opportunity to gather more points than the Mega Bonus. Monster Drop
Chaos also has a 42” display that hangs over the playfield, giving animated attractions to keep players of
all ages engaged and interested to see what will happen next.
Marquee
Display/Screen
Playfield/Wheel
Coin Tower
Ticket Door

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GAME PLAY/ SEQUENCE BEHAVIOR
I. Power-up Initialization Sequence:
•Ball Drop clears
•Chaos carrier clears
•LED’s are all on
•Display shows analysis progress
•Boards checked
•Sound on
•If credits are on the game, the game will automatically enter game mode. If no credits
are on the game, the game will enter attraction mode.
II. Attraction mode:
•Various light patterns are shown while some background sound plays on.
*Note: there is a low-activity rest period (which is programmable). See section
Programming Options, before these sequences are re-triggered, to avoid being too
repetitive.
III. Adding Money (Coin-Mech./ Card-Swipe system/Bill Acceptor):
•“Coin-in” or “Bill-in” sound is hear on corresponding speaker.
•When enough money/tokens is added to buy credit(s), the current credit value will be
shown on the large display located above the playfield, and the game will enter play
mode.
IV. Play Mode:
•Game will enter play mode.
•Gameplay music will sound.
•Drop Ball button will blink.
•Display shows, “Time Your Drop!”
•Speakers will say, “Press button to play!”
V. Mystery Value
•The ball has to fall through the opening on the wheel labeled “mystery”
•The display will flash numbers in which one will be randomly selected as a payout.
VI. Game Win, Mega Bonus:
•The ball has to fall through the opening on the island in the middle of the wheel.

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•Payout tickets will be the amount
located at the top of the Display inside
the game.
•Display will show, “Bonus”.
•Mega Bonus music plays while
speakers say, “Wow! You win it all!”
Playfield LED’s Flash.
VII. Game Win, Chaos:
•The ball has to fall through one of the
two raised holes on the wheel.
•The speakers will say, “CHAOS!” and
“Multi-ball Play!”
•18 balls will drop from the carrier
above the playfield
•The display will post the list of values
that will accumulate to a total sum of
points
VIII. Chaos within a Chaos:
•The ball has to fall through one of the two raised holes on the wheel.
•The speakers will say, “CHAOS!” and “Multi-ball Play!”
•The original chaos has to finish and then the game will reload 10 balls into the ball
carrier
•Once the correct number of balls has been placed in the carrier the Chaos feature will
begin.

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GAME SETUP
I. Unloading/Assembly
•Monster Drop Chaos is shipped
in the following configuration.
•The Marquee and the Mounting
Components (2) will be located
in the lower cabinet in a box
along with ¼-20 Hex bolts (2),
24 balls, ticket bins.
•Take out the Mounting
Components and the ¼-20 x 3”
Hex bolts (2).
•Attach the Mounting
Components to the top of the
cabinet as shown in Figure 1.
•Once the Mounting Components
are installed the marquee will be
fixed by aligning the slots on the
back of the marquee with the
tabs on the front of the
Mounting Components.
•Once the Marquee is set on the
mounting brackets, twist the
locks under the lower slots to
secure the Marquee in place as
shown in Figure 2
1
2

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•Open the box that was located in the cabinet on top of the wheel in the playfield, which
its contents should be the Mega-Bonus Island, and the Chaos feature.
•Pull out the Chaos feature, using at least two people, carefully install the ball carrier by
lifting it so that the arms pass through the slots and then push the carrier to the side so
that the arms will catch and hang from the parallel bars across the top, as shown in the
figure below with the BLUE arrows.
•There are three harness connections for the Chaos feature, all are accessible from the
back of the game by opening the door with the display attached, the location of the
harnesses are in the figure below with the GREEN rectangles.
Front View
Back View

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•The Mega Bonus Island is located in
the same box as the Chaos feature.
•Reach into the hole in the middle of
the playfield wheel grabbing and
connecting the harness of the island
to the one in the game.
•Remove the four acorn nut located in
the middle of the playfield wheel,
and place the Mega Bonus so that the
Island sits flat on the wheel surface,
using the four acorn nuts to secure it
to the playfield as shown in the figure
to the right, in the red circles in the
center.
II. Power Up
•The power cord is inside a box located in the lower cabinet.
•Connect the power cord to the power box near the power switch (red circle), and run
the wire through the hole in the bottom of the cabinet (blue circle) to the nearest
outlet. (View is from the lower back door of the cabinet)
•Press the switch, on top of the power box to turn the game on.
Figure 5

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III. Recommended Inputs
•Setting up Coin Comparator
oThe Coin Comparator is a
section of the Coin Mech. that
compares one of your tokens
or quarters to the inserted
coin by the player. If the coins
do not match, the Coin Mech.
will return the inserted coin
to the player.
oThe Coin Mech. is attached to
the coin tower in the front of
the cabinet.
oDetach the Coin Mech. by
unscrewing the lock nuts on
the back of the four carriage
bolts.
oPull up on the tab of the Coin Mech. that states, “Slide to replace coin.”

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oPlace your token, under the lifted tab, in-between the two edges.
oReattach the Coin Mech. to the button assembly by screwing the lock nuts onto the
four carriage bolts, and connect the wires so that the yellow wire is on top shown
below in blue, and the switch is in the up position as show in the red, as shown
below

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ALTERNATIVE COIN/BILL AND CARD-SWIPE CONFIGURATIONS
There are a several alternative Card Swipe systems and Bill Acceptor configuration possibilities,
depending on your location. These are described in a general fashion as follows.
Note that the system expects the following timing ranges for any pulses:
Low time: 40-80ms
Up time: 100-150ms
CARD SWIPE SYSTEM
The Coin-Mech and/or Bill Acceptor can be replaced to set up a swipe-for-credits, or e-tickets scheme.
This is the recommended set up:
-Remove the Coin-Mech and/or Bill Acceptor and install your card swipe systems in the lower front door.
[Contact customer service if custom plastic plates for this purpose are required].
-Some of the necessary signal lines are available on the connector at the door:
> Enable signal, output.
> Bill acceptor line/Coin-in line, input
For the ‘Run’ and ‘Notch’ signals, you can tap directly from the lines on the Ticket Dispenser drawer, or
from the following pins at the control to coin door harness connection (9 pin UCL)
Ticket Notch: Blue wire on pin 6
Ticket Run: white wire on pin 8
-Have your card swipe system tap into the Bill/Coin signal line.
-Configure your card swipe system for a 1-pulse-per-swipe response or 4-pulse-per-swipe
-If tapping the coin signal line (Gray/yellow), when having 1 pulse-per-swipe, 1 swipe will count as 1 coin
internally.
-If tapping the bill signal line (Gray/yellow), when having 4 pulse-per-swipe, 1 swipe will count as 4 coins
internally.
-Configure the game to provide the necessary credits for the ‘coin’ count indicated above and the actual
money you will charge per-swipe.
-If possible (strongly recommended), hook up your system to the enable line (White/Yellow), so that the
game can stop money intake in case of any machine error or fault.

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COIN MECHS
It is possible to use other coin mechanisms on this machine. The wiring harness terminates on both Spade
type connectors and an IDC connector for this purpose, the signal lines are:
# Wire Color
Signal
Yellow
12V
Gray/yellow & Gray/Orange
Coin Signal
White/yellow
Enable (low=enable, high=disable) (this should
be hooked to coin-mech ground)
Black
GND, actual DC Ground
Notes:
The ‘Device Ground/Enable’ line comes from the Mini High Current Board, as commanded by the main CPU
to enable or disable money intake. It is necessary that your coin-mech device has a coin-lock ‘reject’
solenoid so that this feature is available.
Normally, for an Imonex, if it has a coin reject solenoid, you hook the solenoid’s ‘ground’ to the enable line,
so that the game can control it.
For an electronic coin-mech, like the MPU, you hook up the coin-mech’s ‘ground’ to the enable line.
IV. Adjustments
•Ball Drop Adjustment
oThe Ball Drop Assembly, located at
the top of the cabinet can shift and
may not be aligned correctly with the
wheel.
oIf the Ball Drop Assembly is not
aligned correctly the balls dropped
onto the wheel will never be able to
fall directly into the holes on the
wheel, thus not making Monster Drop
Chaos a skill game.
oTo re-align the Ball Drop Assembly,
obtain two straight edges (i.e. straight
piece of wood, or material that is sure
to be straight) longer than 30 inches
in length.
oTurn Monster Drop Chaos off.
oWith straight edges in hand, run the
straight edges down both sides of the
Ball Drop Assembly and rest the
bottom ends on the wheel.
oMake sure there is a hole directly under the ball drop.

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oIf the straight edges rests on the wheel and are equal distant to the center of
the hole on the wheel, then the Ball drop Assembly is correctly aligned as
shown below on the left side.
oIf the straight edges are not equal distant to the center of the hole on the
wheel, as shown below on the right, then the Ball Drop Assembly needs to be
adjusted.
oGrab a Philips head screw driver (P2), preferably with a neck longer than 9”.
oSlightly loosen the two
screws which lock the Ball
Drop Assembly in place in
the red circles, as shown
to the right.
oShift the Ball Drop
Assembly in the direction
in which will align the
opening with the
corresponding hole on the
playfield.
oUse the two straight
edges to confirm that the
Ball Drop Assembly is in
the correct position
before tightening the two
screws to fasten in place.

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V. Taking off Wheel
oTo take the wheel off of the
playfield, several parts need to
be removed before this task can
be done.
oFirstly, unscrew and remove the
four acorn nuts that are
fastening the island to the
playfield, along with the island
itself as shown to the right.
oSecondly, remove all four
corners of the playfield by
unscrewing all 16 screws
anchoring the plates to the
playfield as shown below.
oThe wheel is now able to be lifted out of the cabinet.

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MAIN ELECTRONIC COMPONENTS
I.PCB board location, Main Control Panel
•The PCB panel is located in the lower cabinet, through the front door on the right side.
II.Power Distribution Board
Part# PCB0032
QTY: 3
Location: On the PCB panel that is inside the lower
cabinet on the right side.
Distributes DC power from the power supply to the
different devices, through a Poly-Switch (thermal,
resettable fuse) for each voltage circuit.
Note that for convenience, the “Programming
Options” button are also located on this board,
even though they’re not power related.
Power is distributed in the following manner (worst case estimations):
BOARD/DEVICESESTIMATED CONSUMPTION
IO-Expander 0.1 A
Stepper 5.1 A
Amplifier
0.35 A
Playfield Lights/Marquee
20A
Display
1 A
Related Note: There are 2 AC fuses on the Power supply IEC-130 receptacle (12.5 Amp, 250 V).

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III.IO-Expander
Part#: 500KIT003
QTY: 1
Location: On the PCB panel that is inside the
lower cabinet on the right side. ID-Switch
settings: 0000
Controls column light strips throughout the
game, receive signals from optos on
playfield, and receives information from the
encoders, inputs from the coin mechs, and
notches from the ticket dispensers, while
receiving the programming-button signals coming from the Power Distribution Board.
IV. Single-Stepper controller
Part#: PCB00040
QTY: 1
Location: On the PCB panel that is inside the lower
cabinet on the right side.
The stepper-motor controller board handles the low-
level control of the games motors.
V. Amplifier
Part#: 500PCB052
QTY: 1
Location: On the PCB panel that is inside the
lower cabinet on the right side.
Amplifies low power audio signals and send
them to speakers.
VI. PC
Part#: 500PCB100

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Hard drive Part # 500PCB115
QTY: 1
Location: On the PCB panel that is inside the
lower cabinet on the right side.
Sends and receives signals to and from
switches all over the game, while driving the
programs on the display screen.
VII. Opto Sensor (Horseshoe Opto)
Part#: PCB0078
QTY: 1
Location: Under the wheel in the playfield.
The Horseshoe Opto is acting as a position marker for
the wheel.
VIII. Opto Sensor (Transmitter)
Part#: PCB00029
QTY: 4
Location: two on the ball drop assembly, one on the Chaos
loading tunnel, one on the ball return chute under the
playfield.
The transmitter will send an IR signal across a pathway to a receiver, when the signal is block
by a ball, the game will be able to count how many balls have passed.
IX. Opto Sensor (Receiver)
Part#: PCB00025
QTY: 4
Location: two on the ball drop assembly, one on the Chaos
loading tunnel, one on the ball return chute under the
playfield.
The Receiver sits opposite of the Transmitter and when the IR
signal is disturbed, it sends a signal to the PC.

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X. Coin Mech. (Factory Default)
Part#: ELM00301
QTY: 1
Location: The Coin Tower on the front of the game.
XI. Hard-Meter pair (optional only)
Part#: 500ASM020
QTY: 1 set
Location: Front right side of the lower cabinet.

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XII. Ticket Dispensers (Intelli-Triple Series)
Part#: 112ASM001
QTY: 1
Location: On the Ticket Door, the front left of lower cabinet.
ID Switch setting: 0000 (off-off-off-off).
On this game, the ticket dispensers use the standard ‘Run’ and ‘Notch’ signals common in
the redemption industry.
For more information, see Benchmark’s Ticket Dispenser manual.