Scientific Games TWINSTAR SLANT Specifications

ORIGINAL INSTRUCTIONS: ALL NON-ENGLISH EDITIONS OF THIS DOCUMENT ARE TRANSLATIONS OF THE ORIGINAL INSTRUCTIONS.
CONFIDENTIAL
TWINSTAR™ SLANT (AH-1S227) OPERATOR INSTRUCTIONS
Slant Cabinet Setup
5 October 2017 1486388 [A]

© 2017 Scientific Games Corporation, All Rights Reserved. Unauthorized distribution prohibited. CONFIDENTIAL
TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
2
© 2017 Scientific Games Corporation, All Rights Reserved. Unauthorized distribution prohibited. Confidential
Scientific Games Corporation
6601 Bermuda Road
Las Vegas, NV 89119, USA
1 855 777 7435 (Toll Free)
1 702 897 7150
http://www.scientificgames.com
This document (“Document”) has been provided to you by Scientific Games Corporation or one or more of its directly or indirectly wholly
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services of Scientific Games or its licensors or other third parties, including layout, information, text and scripts, data, files, images,
photographs, pictures, artwork, designs, graphics, logos, drawings, charts, button icons, instructions, illustrations, advertising copy,
technology, interactive features,“look and feel,” and the compilation, assembly and arrangement of the materials of the Document, and
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the case may be, retain ownership of such Content. The foregoing limited license does not provide the intended recipient with any ownership
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Scientific Games in its sole discretion, and without advance notice or liability.
This Document has been provided to you solely for use in operating the product described herein. The specifications and information
contained in this documentation are subject to change without notice. All statements, information, illustrations, specifications and
recommendations in this documentation are believed to be accurate, but are provided without warranty of any kind, express or implied. The
product information referenced in this Document is being provided by Scientific Games as is.

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Contents 3
Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Reference Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Preventing Injury and Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Environmental Protection and Recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Operating Environment (Recommended) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Dimensions for Cabinet with Topper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Dimensions for Cabinet without Topper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Chapter 2 Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Unpacking and Inspecting the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Lock and Cam Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Door and Lock Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Opening and Closing Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Accessing the Middle Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Accessing the Upper Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Accessing the Upper Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Accessing the Lower Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Accessing Under the Footrest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Accessing the Deck Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Accessing the Security Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Removing and Installing Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Removing the Upper Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Installing the Upper Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Removing the MPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Installing the MPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Installing the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Operational Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Attendant Pays and Canceling Credits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Collecting Bills from the Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Refilling the Printer Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Chapter 3 Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Power Backplane Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Contents 4
Signal Backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Lighting Control Unit (LCU) Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Cabinet Signal Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Chapter 4 Spare Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Preface 5
Preface
This preface includes the following topics:
Reference Information on page 5
Contact Information on page 5
Preventing Injury and Damage on page 5
Environmental Protection and Recycling on page 5
Reference Information
Revocation Bulletins, Service Manuals, and other documents are available online at
https://www.SGgaming.com/members/login. To request a login and password, select Request New Login.
The following documents provide additional information:
Service Manual and User Guide 1458262: ArgOS 2.X Operating System
Contact Information
Preventing Injury and Damage
Preventing Shock: Always remove power from the machine before starting any service tasks.
Preventing ESD: Always use appropriate ESD mitigation procedures.
Replacing the Power Cord: If the Power Cord is damaged, it must be replaced by the manufacturer (Scientific
Games Corporation), its service agent, or similarly qualified persons to avoid a hazard.
Properly Secure and Vent All Equipment: Before starting any service tasks, the cabinet, top or accessory box,
and machine must be correctly secured and installed, with adequate ventilation, as described in the
corresponding product manual or guide to avoid injury and equipment damage.
Ladder Safety: Follow all company mandated ladder safety procedures. Do not exceed the maximum load
rating of a ladder. Be aware of the ladder load rating and of the weight it is supporting, including the weight of
any tools or equipment.
Environmental Protection and Recycling
This product bears a recycling mark in accordance with the Waste from Electrical Electronic
Equipment (WEEE) European Commission Directive 2012/19/EU. This mark indicates that the
product should be deposited at an appropriate facility to enable recovery and recycling in
accordance with all applicable laws. To identify an environmentally sound disposal method for
this product or its component parts, please contact the responsible government authority in
your area. For information on available product take-back programs, see our websites
https://www.sggaming.com/Customer-Center/Games-Support/WEEE-Directive or
http://www.scientificgames.com.
Region Telephone Email
Americas + 1 877 748 3387 [email protected]
Asia Macau 853 625 22559 [email protected]
Singapore 65 8522 7465
Australia/New Zealand Australia 1 800 837 668 [e-mail]
New Zealand 0800 476 321
Europe/Middle East/Africa (EMEA) [phone] [email protected]

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 1 Overview 6
Chapter 1 Overview
This chapter includes the following topics:
Prerequisites on page 6
Electrical Specifications on page 7
Physical Specifications on page 7
Operating Environment (Recommended) on page 7
Dimensions on page 8
This document provides operating instructions for the TwinStar™ Slant AH-1S227 (AH-1S227ST). Your machine displays
only the features supported by your software version, jurisdiction, and machine configuration. All features do not
display on every machine. If any feature does not apply to your machine, then go to the next section.
CAUTION
This document may describe procedures for equipment that do not apply to all
cabinet configurations, or that may require additional components. Each
regulatory jurisdiction may have controls, policies and, procedures that you must
follow. You are responsible for understanding and abiding by the rules that apply
in your environment.
Prerequisites
This installation may require the following additional items:
Locks (quantity 5 to 9, depending on your machine configuration)
Category 5 network cables (quantity and length depending on your machine configuration and your floor plan
layout)
Tools for locks
22 mm (7/8-inch), 11 mm (7/16-inch), and 10 mm (0.39-inch) socket or wrench
Nut driver
Needle nose pliers
Phillips head screw driver
Set of Allen wrenches
Operating system software manual for your machine

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 1 Overview 7
Electrical Specifications
Electrical Specifications
NOTE
Typical currents are provided for reference only. Actual current use will depend
upon machine configuration and addition of supplemental equipment such as,
but not limited to, the following: systems monitoring equipment, progressive
equipment, and service equipment.
Physical Specifications
Operating Environment (Recommended)
CAUTION
To prevent temperature and humidity related stress on the machine, operate the
machine within the recommended guidelines. Operating the machine outside the
recommended guidelines may increase the required maintenance.
Table 1 Electrical Specifications
Description Cabinet with Topper Cabinet without Topper
Cabinet Image
Line Voltage 120 VAC 120 VAC
Surge State Current 1.5 Amps at 120 VAC (0.75 Amps at 240 VAC) 1.1 Amps at 120 VAC (0.55 Amps at 240 VAC)
Operating State Current 1.6 Amps at 120 VAC (0.8 Amps at 240 VAC) 1.4 Amps at 120 VAC (0.7 Amps at 240 VAC)
Fuse Limited Rated Current 6.3 Amps at 120 VAC (3.15 Amps at 240 VAC) 6.3 Amps at 120 VAC (3.15 Amps at 240 VAC)
Heat Generated (BTU/HR) 622 545
Table 2 Physical Specifications
Description Cabinet with Topper Cabinet without Topper
Weight
Weight (Un-crated including Flammable
Weight)
164.66 kg (363 lbs) 153.77 kg (339 lbs)
Flammable Weight 29.71 kg (65.5 lbs) 27.22 kg (60 lbs)
Dimensions
Width 71.36 cm (28.09-in.) 71.36 cm (28.09-in.)
Depth 73.32 cm (28.9-in.) 73.32 cm (28.9-in.)
Table 3 Operating Environment
Description Cabinet with Topper Cabinet without Topper
Temperature Range 4-40 Degrees Celsius
(39.2 - 104 Degrees Fahrenheit)
4-40 Degrees Celsius
(39.2 - 104 Degrees Fahrenheit)
Humidity (Maximum) 90% 90%

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 1 Overview 8
Dimensions
Dimensions
Dimensions for Cabinet with Topper
Figure 1 Front and Side Views for Cabinet with Topper
73.66 cm
(29.0 in.)
66.04 cm
(26.0 in.)
73.32 cm
(28.9 in.)
24.89 cm
(9.8 in.)
30.98 cm
(12.2 in.)
71.36 cm
(28.09 in.)
162.30 cm
(63.9 in.)
201.93 cm
(79.5 in.)
218.44 cm
(86.0 in.)

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 1 Overview 9
Dimensions
Dimensions for Cabinet without Topper
Figure 2 Front and Side Views for Cabinet without Topper
73.66 cm
(29.0 in.)
66.04 cm
(26.0 in.)
73.32 cm
(28.9 in.)
24.89 cm
(9.8 in.)
177.80 cm
(70.0 in.)

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 2 Instructions 10
Chapter 2 Instructions
This chapter includes the following topics:
Unpacking and Inspecting the Machine on page 10
Lock and Cam Specification on page 11
Door and Lock Locations on page 12
Opening and Closing Doors on page 13
Removing and Installing Components on page 19
Installing the Machine on page 25
Operational Tasks on page 27
Unpacking and Inspecting the Machine
1Remove any plastic packaging.
2Verify that the serial numbers on the cabinet match with the shipping documents associated with the
installation.
CAUTION
All serial numbers must match the shipping documents that are associated with
the installation. Never remove serial numbers from any equipment
3Inspect the cabinet for any shipping damage, such as dents or scratches.
4Unpack and remove all loose parts from any boxes or bags containing cables, lock cams, and mounting
hardware.
5Remove all plastic or paper packing materials from any interior assemblies, such as a printer.
6Inspect the interior cables and ensure they are firmly connected.
7Inspect the circuit board assemblies for loose connections.
NOTE
During shipping, cables may become disconnected and circuit boards may
become unseated. Ensure they are firmly attached before proceeding.
8Locate and open the logic door.
9Re-seat the flash media in the sockets if necessary.
10 If the machine is damaged or any parts are missing, then please contact your Distributor or Customer Service
Representative for Return Merchandise Authorization (RMA) information.
CAUTION
If a new machine is damaged and awaiting replacement parts, then do not
remove any existing parts from it for use in another machine.

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 2 Instructions 11
Lock and Cam Specification
Lock and Cam Specification
NOTE
TIP: To avoid delays, purchase your machine locks well before your planned
installation date. Purchase several spare machine locks from your lock
manufacturer and keep them available. If necessary, use a 1.6 mm lock spacer
(200455) or a 28.6 mm spacer (202035-00003 and S-00231-984).
Table 4 Lock and Cam Specifications
Lock Location Cam
Illustration
Cam Part
Number
Cam Middle Door Lock (Left Turn) 237627
Optional Middle Door Secondary Lock (Left Turn) 237904
Lower Door Lock (DROP) (Right Turn) 237511
Bill Acceptor Cash Box Access Door Lock (Right Turn) 200454
Optional Second Bill Acceptor Cash Box Access Door Lock (Right Turn) 200454
Flash Media Module (Right Turn) 200125
MPU Housing (Left Turn) 200454

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 2 Instructions 12
Door and Lock Locations
Door and Lock Locations
Figure 3 Door and Lock Locations
Table 5 Door and Lock Location Figure Legend
Callout Description
AAudit Key Switch
BDeck Door (not shown)
CLower Door Lock
DLower Door
EMiddle Door
FMiddle Door Lock
GUpper Door Lock
HUpper Door
G
H
A
F
C
BE
D

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 2 Instructions 13
Opening and Closing Doors
Opening and Closing Doors
Use the following instructions to ensure safe and correct operation of door equipment:
Secure doors with locks installed according to instructions from your lock manufacturer.
Inspect door latches, brackets, pins, hinges, and gas springs (if applicable) for wear or damage, and replace, if
necessary.
When opening and closing doors, always hold or support doors and use the provided latch release
mechanisms, handles, or knobs.
When closing doors, always ensure the door frame areas are free of foreign objects and the door latches and
closes securely. Do not apply excessive force.
To avoid damaging latches when closing, always use the door handles or knobs to hold latches in the open
position, close the door, and then release the handle or knob gently. (For applicable doors.)
Accessing the Middle Door
Use the following instructions to open the middle door:
1To open the middle door, turn the bottom right lock of the door counterclockwise and lower the door.
Figure 4 Bottom Right Lock Location
2To close the middle door, raise the middle door until the door connects to the cabinet frame securely.
Accessing the Upper Door
Use the following instructions to access the upper door:
1To open the upper door, turn the upper right lock of the middle door clockwise, then open the upper door from
right to left.
Figure 5 Upper Right Lock Location

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 2 Instructions 14
Opening and Closing Doors
2Close the upper door from left to right, then press the right side of the monitor until the door connects to the
cabinet frame securely.
Accessing the Upper Monitor
Use the following instructions to access the upper monitor:
1Before accessing the upper monitor, ensure that the upper door is securely closed.
2Open the middle door. See Accessing the Middle Door on page 13.
3Locate the yellow release handle on the far right and pull firmly towards yourself.
Figure 6 Release Handle Location
4Pull the upper monitor towards yourself until it latches.
Figure 7 Upper Monitor

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 2 Instructions 15
Opening and Closing Doors
5To close the upper monitor main door, hold the monitor on the left side and pull the lock pin on the right side of
the latch assembly to release the monitor.
Figure 8 Lock Pin Location
6Lower the monitor until it connects to the cabinet frame.
Accessing the Lower Door
Use the following instructions to access the lower door:
1To open the lower door, turn the key in the lower door lock clockwise and lift the door. Hinges hold the door
open.
2To close the lower door, press down on the door until it connects to the cabinet frame, then lift and push to
close the door.
3To lock the door, turn the key in the lower door lock counterclockwise.
Figure 9 Accessing the Lower Door

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 2 Instructions 16
Opening and Closing Doors
Accessing Under the Footrest
Use the following instructions to access the area under the footrest:
1To open the footrest, lift it using the provided finger reliefs.
Figure 10 Footrest Access Point Detail
2To close the footrest, push down until it connects to the cabinet securely.
Accessing the Deck Door
Use the following instructions to access the deck door:
CAUTION
The deck door is not attached to the cabinet. To prevent injury or damage, hold the
center of the security panel firmly.
1To open the deck door, unfasten two screws located under the iDeck using a Phillips head screw driver and save
the screws for future use.
Figure 11 Opening the Deck Door

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 2 Instructions 17
Opening and Closing Doors
2To close the deck door, align the holes of the deck door and the cabinet.
Figure 12 Closing the Deck Door
3Secure the deck door to the cabinet with two screws previously removed.
Accessing the Security Panel
Use the following instructions to access the security panel:
1To open the security panel, open the middle door. See “Accessing the Middle Door” on page 13.
2Locate the security panel latch behind the deck.
Figure 13 Security Panel Latch Detail

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TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 2 Instructions 18
Opening and Closing Doors
CAUTION
This door opens downward. To prevent injury or damage, hold the door firmly.
3Slide the latch to the right and lower the security panel.
Figure 14 Security Panel Door Open
4To close the security panel, route any cables where they will not be pinched, and insert the security panel up
into the cabinet from under the button deck area until the door connects to the cabinet frame securely.
CAUTION
To ensure that wires and cables are not pinched, abraded, or otherwise damaged,
use care when inserting and removing doors.

© 2017 Scientific Games Corporation, All Rights Reserved. Unauthorized distribution prohibited. CONFIDENTIAL
TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 2 Instructions 19
Removing and Installing Components
Removing and Installing Components
Removing the Upper Door
Use the following instructions to remove the upper door.
CAUTION
The door is heavy. To prevent injury or damage, enlist the aid of another technician
during removal.
1Open the upper door. See Accessing the Upper Door on page 13.
2Disconnect all cables from the monitor assembly.
Figure 15 Monitor Cable Connections
CAUTION
To ensure wires and cables are not pinched, abraded, or otherwise damaged, use
care when inserting and removing doors.
3Use a Phillips head screw driver to remove the ground cable from the monitor assembly.
Figure 16 Ground Cable Connection

© 2017 Scientific Games Corporation, All Rights Reserved. Unauthorized distribution prohibited. CONFIDENTIAL
TwinStar™ Slant (AH-1S227) Operator Instructions 1486388 [A]
Chapter 2 Instructions 20
Removing and Installing Components
4Use a Phillips head screw driver to unfasten two screws from the bracket at the top right of the back of the
monitor assembly. Reserve the screws for future use.
Figure 17 Monitor Bracket Screws
5Use an Allen wrench to unfasten the lower hinge of the monitor from the cabinet.
Figure 18 Monitor Lower Hinge
6Use an Allen wrench to unfasten the upper hinge of the monitor from the cabinet.
Figure 19 Upper Monitor Hinge