7454 realpos hardware service guide

NCR 7454 Retail TerminalRelease 2.2

Hardware Service Guide

B005-0000-1342Issue C

The product described in this book is a licensed product of NCR Corporation.

NCR is a registered trademark of NCR Corporation.

NCR RealPOS, NCR RealPrice, NCR RealScan, NCR EasyPoint and NCR FastLane are either registeredtrademarks or trademarks of NCR Corporation in the United States and/or other countries.

It is the policy of NCR Corporation (NCR) to improve products as new technology, components, software, andfirmware become available. NCR, therefore, reserves the right to change specifications without prior notice.

All features, functions, and operations described herein may not be marketed by NCR in all parts of the world.In some instances, photographs are of equipment prototypes. Therefore, before using this document, consultwith your NCR representative or NCR office for information that is applicable and current.

To maintain the quality of our publications, we need your comments on the accuracy, clarity, organization, andvalue of this book.

Address correspondence to:

Manager, Information ProductsNCR Corporation2651 Satellite Blvd.Duluth, GA 30096

Copyright © 2002By NCR CorporationDayton, Ohio U.S.A.All Rights Reserved

i

PrefaceAudience

This book is written for hardware installer/service personnel, systemintegrators, and field engineers.

Notice: This document is NCR proprietary information and is not tobe disclosed or reproduced without consent.

Safety Warnings

Fuse ReplacementCaution: For continued protection against risk of fire, replace onlywith the same type and ratings of fuse.

Attention: Pour prévenir et vous protéger contre un risque de feu,remplacer la fusible avec une autre fusible de même type, seulement.

Power Supply Cord Used as Disconnect MeansCaution: The power supply cord is used as the main disconnectdevice. Ensure that the socket outlet is located/installed near theequipment and is easily accessible.

Attention: Le cordon d'alimentation est utilisé comme interrupteurgénéral. La prise de courant doit être située ou installée å proximité dumatériel et être facile d'accés.

Warning: DO NOT connect or disconnect a printer, keyboard, orany other terminal-powered peripheral while the terminal ispowered on. Doing so may result in peripheral or system damage.

Warning: The NCR 7454 must be mounted securely to prevent ahazard. It must be installed in accordance with local building codes.The post or wall on which the unit is mounted should be able towithstand four times the weight of the unit, which is approximately20 lbs. (9 kg).

ii

Lithium Battery WarningCaution: Danger of explosion if battery is incorrectly replaced.Replace only with the same or equivalent type as recommended by themanufacturer. Discard used batteries according to the manufacturer’sinstructions.

Attention: Il y a danger d'explosion s'il y a remplacement incorrect dela batterie. Remplacer uniquement avec une batterie du même type oud'un type recommandé par le constructeur. Mettre au rébut lesbatteries usagées conformément aux instructions du fabricant.

Peripheral Usage

This terminal should only be used with peripheral devices that arecertified by the appropriate safety agency for the country of installation(UL, CSA, TUV, VDE) or those which are recommended by NCRCorporation.

Environmental Consciousness

NCR is demonstrating its concern for the environment by designing anintelligent power management system into this terminal that operatesefficiently whether the system is in a stand-alone or networkenvironment.

iii

References• NCR 7454 Retail Terminal Hardware User’s Guide

(B005-0000-1254)

• NCR 7454 Retail Terminal Site Preparation Guide(B005-0000-1257)

• NCR 7454 Retail Terminal Software User’s Guide(B005-0000-1259)

• NCR 7401/7454 Retail Terminal Parts Identification Manual(B005-0000-1072)

• NCR 74017454 Retail Terminal Diagnostics and Troubleshooting Guide(B005-0000-1101)

• NCR FitClient Software User’s Guide(B005-0000-1235)

v

Table of Contents

Chapter 1: Product Overview

Introduction .................................................................. 1-1Serial Number/Model Number Label ........................ 1-2

Chapter 2: POST Diagnostics

Power-On Self-Test (POST) Errors.............................. 2-1Recoverable POST Errors ...................................... 2-2Error and Beep Codes ............................................ 2-2Terminal POST Errors............................................ 2-6Test Points and Beep Codes .................................. 2-6

Chapter 3: Hardware Service

Introduction .................................................................. 3-1Safety Requirements .............................................. 3-1

Fuse Replacement .............................................. 3-1

Power Supply Cord Used as DisconnectMeans.................................................................. 3-1Lithium Battery Warning .................................. 3-2

Touch Screen Cleaning Procedures ...................... 3-2Disassembly Procedures .............................................. 3-3

Removing the Core Module .................................. 3-3Removing the Stereo Speaker Assembly.............. 3-5Disassembling the Core Module ........................... 3-6

Removing the PCMCIA Assembly ................... 3-7Removing the MSR ............................................ 3-8Removing the Hard Disk................................. 3-11Removing the Compact Flash ......................... 3-13Removing the POS Connector Board ............. 3-15

vi

Removing the Processor Board ....................... 3-15Removing the Inverter Board (12.1-inch) ....... 3-21Removing the Inverter Board (15-inch).......... 3-23Disassembling the LCD Assembly (12.1-inch)3-24Replacing the Backlight (12.1-inch) ................ 3-30Disassembling the LCD Assembly (15-inch).. 3-31

Removing the Power Supply............................... 3-35Circuit Boards ............................................................. 3-37

Processor Boards .................................................. 3-37Processor Board Components ......................... 3-38Memory Module .............................................. 3-39Motherboard Replacement.............................. 3-40Replacing the Lithium Battery ........................ 3-42CPU/System Speed Settings ........................... 3-48Powered RS-232 Configuration (RS-232/1) ... 3-51DMA Channels................................................. 3-53Processor Board Connector Pin-Outs ............. 3-54Ethernet 10/100 LAN Interface....................... 3-68POS Connector Board ...................................... 3-69

POS Connector Board with MicrophoneSupport ............................................................. 3-69

Power Supply ....................................................... 3-70DC Outputs ...................................................... 3-71Cable Pin Outs.................................................. 3-71Terminal Power Diagram................................ 3-72

Clearing the Password ............................................... 3-73Pentium I Board ............................................... 3-73Pentium III Board............................................. 3-73

vii

Revision RecordIssue Date Remarks

A Feb 01 This new document contains the hardware serviceinformation removed from the 7454 Retail TerminalHardware Installation and Service Guide(B005-0000-1256).

B Jan 02 Updated for Release 2.1. Added information on thenew LCD features.

C Dec 02 Updated for Release 2.2

viii

Radio Frequency Interference Statements

Federal Communications Commission (FCC)Information to UserThis equipment has been tested and found to comply with the limits for a Class Adigital device, pursuant to Part 15 of FCC Rules. These limits are designed to providereasonable protection against harmful interference when the equipment is operated ina commercial environment. This equipment generates, uses, and can radiate radiofrequency energy and, if not installed and used in accordance with the instructionmanual, may cause harmful interference to radio communications. Operation of thisequipment in a residential area is likely to cause interference in which case the userwill be required to correct the interference at his own expense.

NCR is not responsible for any radio or television interference caused by unauthorizedmodification of this equipment or the substitution or attachment of connecting cablesand equipment other than those specified by NCR. The correction of interferencecaused by such unauthorized modification, substitution or attachment will be theresponsibility of the user. The user is cautioned that changes or modifications notexpressly approved by NCR may void the user’s authority to operate the equipment.

Canadian Department of CommunicationsThis digital apparatus does not exceed the Class A limits for radio noise emissionsfrom digital apparatus set out in the Radio Interference Regulations of the CanadianDepartment of Communications.

Le présent appareil numérique n'émet pas de bruits radioélectriques dépassant leslimites applicables aux appareils numériques de la classe A prescrites dans lerèglement sur le brouillage radioélectriques édicté par le ministrère desCommunications du Canada.

Voluntary Control Council for Interference (VCCI)

ix

Declaration of ConformityManufacturer’s Name NCR Corporation

Manufacturer’s Address NCR CorporationRetail Solutions Division – Atlanta2651 Satellite BoulevardDuluth, GA 30096-5810

Type of Equipment Information Technology Equipment

Model Number Class 7454

Electrical Ratings (Input) 100-120 V/200-240 V, 2.0 A/1.0 A, 50-60 Hz

NCR Corporation, 1700 South Patterson Boulevard, Dayton, OH 45479,USA, declares that the equipment specified above conforms to thereferenced EU Directives and Harmonized Standards.

EU Directive Harmonized Standard(s)

89/336/EEC (EMC) EN 55022: 1987 (CISPR 22)EN 50082-1, Part 1: 1992IEC 801-2: 1984IEC 801-3: 1984IEC 801-4: 1988

73/23/EEC (Low Voltage) EN 60 950: 1992 +A1+A2:1993 +A3:1995

Director of Quality AssuranceNCR CorporationRetail Solutions Division — Atlanta2651 Satellite BoulevardDuluth, GA 30096-5810

European Contact:International IP Counsel206 Marylebone RoadLondon, NW1 6LY, England

Chapter 1: Product Overview

18004

NCR

Introduction

The NCR 7454 Retail Terminal is an interactive touch screen terminaldesigned specifically for the hospitality marketplace. Housed in anintegrated, compact cabinet, the 7454 supports a complete set ofperipherals.

The major hardware features of the 7454 are a flat panel display withtouch screen input and LAN connectivity, plus optional magneticstripe reader, scanner, stereo audio, and wireless LAN.

The 7454 is Internet/Intranet ready. System loading can occur from anetwork server, and software and data content are delivered from aserver through standard internet protocols.

1-2 Chapter 1: Product Overview

Serial Number/Model Number Label

The unit’s serial number, model number, tracer number, and date ofmanufacture are included on a label on the back of the Core Module.To view the label, tilt the Core Module and remove the cable cover.

Note: The serial number is repeated on the non-MSR side of the CoreModule.

7454-2002-M00750-3275881550-000077Mfg Date : 06/29/98

NCR

0

Class/Model

Serial Number

Tracer Number

Date Manufactured

16394

Chapter 2: POST Diagnostics

Power-On Self-Test (POST) ErrorsWhenever a recoverable error occurs during POST, the BIOS displaysan error message describing the problem.

If a system boot is incomplete (for example, the system is turned offwhile it is going through the POST), then the next time the system ispowered on you may get a message stating that the previous boot wasincomplete. The BIOS will revert to safe values for the chip set, caches,I/O components, etc. This provides the best possibility of returning tothe Setup routine and to normal functioning, but these values do notalways produce maximum system performance. To achieve maximumperformance after the BIOS has reverted to safe values, re-enter Setupand select the maximum performance values.

If, for example, the terminal was simply turned off during POST, youcan return to the maximum performance values by simply enteringSetup and exiting or by rebooting.

During POST, you are asked to press <F1> and boot with the defaultconfiguration. If you simply presses <F1> and then do not later returnto Setup, the system will boot; but the external cache will not beenabled, even though the default configuration will enable the cache.

Recoverable POST ErrorsWhenever a recoverable error occurs during POST, the BIOS displaysan error message describing the problem. If the Beep Error Codes optionis set to ON in BIOS Setup, a series of 2 beeps is issued followed byfour (4) groups of 1 to 4 tones. These tones correspond to a specificRecoverable POST Error. The table below indicates this correlation.These Beep Codes are to assist in understanding an error in the casewhere the primary display is non-functional or a non-LCD/CRT.

2-2 Chapter 2: POST Diagnostics

Error and Beep CodesThe following is a list of the checkpoint codes written at the start ofeach test and the beep codes issued for terminal errors. Not all TestPoints are issued by all of the systems. If no beeps are issued for thatcode, the Beeps column remains blank. In such cases, rely on the on-screen information.

Beeps Error Message Corrective Action

Disk Errors

1-1-1-1 0200: Failure Fixed Disk Check cable/Replacehard drive

Keyboard Errors

1-2-1-1 0210: Stuck Key Replace Keyboard

1-2-1-2 0211: Keyboard error Replace Keyboard

1-2-1-3 0212: Keyboard ControllerFailed

Replace Keyboard

1-2-1-4 0213: Keyboard locked –Unlock key switch

ReplaceKeyboard/Unlockkeyboard

Video Errors

1-3-1-1 0220: Monitor type does notmatch CMOS - Run SETUP

Should not happen,unless CMOS iscorrupted. DefaultParameters in Setup.

Memory Errors

1-4-1-1 0230: System RAM Failed atoffset:

Replace Memorymodule

1-4-1-2 0231: Shadow Ram Failed atoffset:


1-4-1-3 0232: Extended RAM Failed ataddress line:


Chapter 2: POST Diagnostics 2-3


1-4-1-4 Memory type mixing detected. Replace Memorymodule

1-4-2-1 Single-bit ECC error occurred. Replace Memorymodule

1-4-2-2 Multiple-bit ECC erroroccurred.


CMOS Errors

2-2-1-1 0250: System battery is dead -Replace and run SETUP

Replace CMOS battery

2-2-1-2 0251: System CMOS checksumbad - Default configurationused

Run Setup

Timer Errors

2-3-1-1 0260: System timer error Replace Motherboard

Real Time Clock Errors

2-4-1-1 0270: Real time clock error Replace Motherboard

2-4-1-2 0271: Check date and timesettings

Set Time and Date

Configuration Errors

3-1-1-1 0280: Previous boot incomplete- Default configuration used

3-1-1-2 0281: Memory Size found byPOST differed from EISACMOS

Possible Hardwareproblem withmotherboard ormemory

Diskette Errors

3-4-1-1 02B0: Diskette drive A error Replace drive or correctsetup to reflect no drive



3-4-1-2 02B1: Diskette drive B error Replace drive or correctsetup to reflect no drive

3-4-1-3 02B2: Incorrect Drive A type -run SETUP

Replace drive or correctsetup to reflect no drive

3-4-1-4 02B3: Incorrect Drive B type -run SETUP

Replace drive or correctsetup to reflect no drive

Cache Errors

4-2-1-1 02D0: System cache error -Cache disabled

Replace Cachemodule/Motherboard

Other Errors

4-4-1-1 02F0: CPU ID: Replace CPU

4-4-2-1 02F4: EISA CMOS not writeable Replace Motherboard

4-4-2-2 02F5: DMA Test Failed Replace Motherboard

4-4-2-3 02F6: Software NMI Failed Replace Motherboard

4-4-2-4 02F7: Fail-safe Timer NMIFailed

Replace Motherboard

4-4-3-1 02F8: CPU over temperatureerror

Check/replace Fan,Check air vents, etc

4-4-3-2 02FA: Cannot read CPUtemperature

Check/replace Fan,Check air vents, etc.

4-4-3-3 02FA: Cannot read CPUtemperature

Replace Motherboard

4-4-3-4 02FB: Cannot read Systemtemperature

Replace Motherboard

4-4-4-1 02FC: SMB Connect Failed Replace Motherboard

4-4-4-2 02FD: SMB clock chipinitialization failed

Replace Motherboard

4-4-4-3 02FE: Battery not installed Install Battery

Chapter 2: POST Diagnostics 2-5

The BIOS also can issue the following beep codes during POST:

• One long tone followed by three short tones, if the videoconfiguration fails

• One long tone followed by two short tones, if an external ROMmodule does not properly checksum to zero

An external ROM module (LAN or video board) can also issue audibleerrors, usually consisting of one long tone followed by a series of shorttones.


Terminal POST ErrorsThere are several POST routines that issue a POST Terminal Error andshut down the system if they fail. Before shutting down the system, theterminal-error handler issues a beep code signifying the test pointerror, then writes the error to port 80h and attempts to initialize thevideo. The handler writes the error in the upper left corner of thescreen (using both mono and color adapters). The routine derives thebeep code from the test point error as follows:

1. The 8-bit error code is broken down to four 2-bit groups.

2. Each group is made one-based (1 through 4) by adding 1.

3. Short beeps are generated for the number of times in each group.

Example: Test point 01Ah = 00 01 10 10 = 1-2-3-3 beeps

Test Points and Beep CodesAt the beginning of each POST routine, the BIOS outputs the test pointerror code to I/O address 80h. Use this code during troubleshooting toestablish at what point the system failed and what routine was beingperformed.

If the BIOS detects a terminal error condition, it halts POST afterissuing a terminal error beep code (see previous section) andattempting to display the error code on upper left corner of the screenand on the port 80h LED display.

If the system hangs before the BIOS can process the error, the valuedisplayed at the port 80h is the last test performed. In this case, thescreen does not display the error code.

Chapter 3: Hardware Service

IntroductionThis chapter discusses procedures for disassembling the terminalhardware for servicing. Topics include:

• Safety requirements

• Terminal disassembly procedures

• Cable connector identification

• Strapping information

• Fuse information

Safety RequirementsWarning: DO NOT connect or disconnect the RS-232 transactionprinter, or any terminal-powered peripheral, while the terminal ispowered on.

Fuse Replacement

Caution: For continued protection against risk of fire, replace onlywith the same type and ratings of fuse.

Attention: Pour prévenir et vous protéger contre un risque de feu,remplacer la fusible avec une autre fusible de même type, seulement.

Power Supply Cord Used as Disconnect Means

Caution: The power supply cord is used as the main disconnectdevice. Ensure that the socket outlet is located/installed near theequipment and is easily accessible.

3-2 Chapter 3: Hardware Service

Attention: Le cordon d'alimentation est utilisé comme interrupteurgénéral. La prise de courant doit être située ou installée å proximité dumatériel et être facile d'accés.

Caution: This unit contains hazardous voltages and should beserviced only by qualified service personnel.

Lithium Battery Warning

Caution: There is a danger of explosion if the battery is incorrectlyreplaced. Replace only with the same or equivalent type asrecommended by the manufacturer. Discard used batteries accordingto the manufacturer’s instructions.


Touch Screen Cleaning Procedures1. Spray an ammonia-based glass cleaner on a soft cloth and gently

wipe the touch screen clean.

Warning: Do not use any other types of cleaners such as vinegar,solvents, or degreasers. These can damage the screen.

2. Wipe the screen and edges dry.

3. Allow the glass and screen edges to dry completely before usingthe unit.

Chapter 3: Hardware Service 3-3

Disassembly ProceduresThis section provides disassembly instructions for the 7454.

Caution: Disconnect the AC power cord before disassembling theterminal. Use appropriate Electro Static Discharge procedures duringthis modification.

Removing the Core Module1. Unlock the mount by turning the right hand Locking Cap to the

rear as labeled and tilt the Core Module to access the cableconnectors.

Cable Cover

Thumb Screw

15968

Locking Cap

2. Remove the Cable Cover (loosen the thumbscrew).


3. Disconnect the peripheral and LAN cables, noting their respectivepositions.

4. Tilt the Core Module back to its upright position and then lay theCore Module face down on a flat surface.

5. Remove the screws (4) that secure the Mount Assembly to the CoreModule and then remove the Mount Assembly.

16255


Removing the Stereo Speaker AssemblyThe Stereo Speaker Assembly is an optional feature. If installed, it isheld into position by two extensions that slide into two dovetailed slotsin the Core Module.

1. Disconnect the Stereo Speaker Cable and IRDA Cable.

2. Remove the screws (4) that secure the Stereo Speaker Assembly tothe bottom of the Core Module. (Two of the screws also secure theTable Top Mount Assembly.)

IRDA Connector

17674

Remove Screws (4)Stereo Speaker Assembly

Stereo Speaker Cable

3. Remove the assembly.


Disassembling the Core Module1. Remove the Pivot Assembly Cover (2 screws).

2. Remove the Back Panel (3 screws).

19392

Back Panel

Pivot Assembly Cover(Spillage protection)

Hinge

Fixed-Angle Mount Model

Tilt Mount Model


Removing the PCMCIA Assembly

Note: The PCMCIA feature is optional and may not be present.

1. Remove the Wireless Antenna Cover (2 screws).

2. Remove the PCMCIA Bracket screws (2) and the screw that securesthe module to the Processor Board. The following diagram shows aPCMCIA Assembly with an Intel® Pentium® I Processor.

16431

PCMCIA Assembly

Wireless Antenna CoverPCMCIA Bracket

3. Remove the PCMCIA Bracket.

4. Disconnect the module from the Processor Board header.


Removing the MSR

1. Remove the MSR screws (2). The following diagram shows theMSR with a Pentium I Processor.

15979

MSR


2. Disconnect the MSR Cable. Note that there are two types ofdisconnects as shown in the following illustrations.

New Style

18000

MSRCable


Old Style

15982

MSRCable

Caution: Use care in replacing the cable. Install it with the “InstallThis Side Up” label facing up.


Removing the Hard Disk

1. Grasp the paper handle on the Disk Cable and unplug the datacable.

2. Using a screwdriver, press the tab down that latches the diskbracket to the cabinet sheet metal. The following diagram depicts ahard drive installed with a Pentium I Processor.

15984

Hard Disk

Data Cable

Release Tab


a) With a screwdriver, pry the assembly away from the cabinet todisconnect the hooks on the front end of the disk bracket fromthe sheet metal.

15985


Removing the Compact Flash

1. Unplug the Compact Flash Harness from the connector.

2. Using a screwdriver, press the tab down that latches the CompactFlash Bracket to the cabinet sheet metal.

20357

Compact Flash

Compact FlashHarness

Release Tab


3. With a screwdriver, pry the assembly away from the cabinet todisconnect the hooks on the front end of the Compact Flash Bracketfrom the sheet metal.

20358


Removing the POS Connector Board

The POS Connector Board contains the Cash Drawer Port and theCustomer Display (Parallel) Port Connectors.

1. Remove the screws (4) that secure the POS Connector Board.

2. Unplug the POS Connector Board from the standoff on theProcessor Board as indicated by the arrow below.

15983b

POS ConnectorBoard

Removing the Processor Board

Note: The Class, Model, Sub-Model and Serial Number of theterminal are stored in the BIOS on the Processor Board. If you arereplacing the Processor Board, you will need to update the BIOS on thenew board.


1. Remove the Back Panel (4 screws).

15989

Cabinet Back

7454-2002-M00750-3275881550-000077Mfg Date : 06/29/98

NCR

0

Class/Model

Serial Number

Tracer Number

Date Manufactured


2. Disconnect the following cables from the Processor Board.

• LCD Display Cable (J17)

• Backlight Power Cable (J2)

• Motion Sensor Cable (J4, latched)

• Touchscreen Cable (J5)

• S-Video Cable (J18)

• IRDA Cable (J21)

• RS-232 Conversion Cable (J23/J24)

17679

LCD Display Cable

Backlight Power Cable

Motion Sensor Cable

TouchscreenCable IRDA Connector

RS-232 Conversion


3. Remove the screws (2) in the E-Box that secure the Processor BoardBracket.

4. Remove the screw that secures the Conduction Block.

5. Remove the screws (5) that secure the Processor Board. Use cautionto avoid damaging the Conduction Block heat transfer pads on thescrew side of the block.

Caution: Make sure that the conduction block screw is installedwhen replacing the Processor Board or CPU.

15990

5 ScrewsConduction Block Screw

2 Screws


6. Remove the Electronics Box (4 screws).

15991

4 Screws

E-Box


15-inch Version

4 Screws

Reset Button

18155

E-Box


Removing the Inverter Board (12.1-inch)

1. Remove the screws (2) that secure the Inverter Board.

2. Disconnect the High-Voltage Cables (2) from the Inverter Board.There are two types of LCD features—the Sharp® version and theSamsung® version—as shown in the following illustrations.

Note: The Inverter power cable must be routed underneath the boardprior to reassembling the unit. Route the cable as far as possible fromthe LCD so that it lays between the edge of the LCD bracket and thebuss that the Inverter Board is mounted on.

7454-F002 (12.1-inch Sharp Color TFT LCD/Capacitive Touch)7454-F004 (12.1-inch Sharp Color TFT LCD/Resistive Touch)

Inverter Board Cable(routed under the board)

15993

Inverter Board(2 Screws)

High-Voltage Cables


7454-F031 (12.1-inch Dual Tube TFT (Samsung)/Resistive Touch)7454-F033 (12.1-inch Dual Tube TFT (Samsung)/Capacitive Touch)

Inverter Board Cable(routed under the board)

19409

Inverter Board(2 Screws)

High-Voltage Cables


Removing the Inverter Board (15-inch)

1. Remove the screw and the double-ended nylon standoff thatsecures the Inverter Board.

2. Remove the Inverter Board.

3. Disconnect the High-Voltage Cables (2) from the Inverter Board.

Note: The Inverter Board Cable must be routed through the holein the black plastic insulator.

Inverter Board Cable

18156


Disassembling the LCD Assembly (12.1-inch)

Use the following procedure to repair/replace the LCD Head or TouchScreen assemblies. Note that there are two types of LCD features, asshown in the following illustrations.

Sharp

7454-F002 / 7454-F004

LCD Head

Touch ScreenFrame

Touch Screen

Screen Bezel

Display CabinetFront

16261


Samsung

7454-F031 / 7454-F033

LCD Head

Touch ScreenFrame

Touch Screen

Screen Bezel

Display CabinetFront

19410

LCD Adapter


1. Remove the LCD Adapter Board. Remove the two screws and thenunplug the board from the LCD Head. Note that there are twotypes of LCD adapters as shown in the following illustrations. Theprocedure to remove the Adapter Board is the same.

Sharp (7454-F002 / 7454-F004)

16262

LCD AdapterBoard

Samsung (7454-F031 / 7454-F033)

19411


2. Remove the LCD Head (4 hex nuts).

Note: The LCD Head may have a different LCD Cable and oneBacklight Connector instead of two.

16263

Plastic Hex Nuts

LCD Head


3. Remove the Touch Screen assembly from the Front Cabinet.

4. The bracket can be separated from the Touch Screen by releasingeach of the tabs (9) on the bezel and lifting the bracket.

15997

Touch ScreenBracket

Touch Screen

Touch ScreenBezel

Bezel Tabs (9)


Replacing the Backlight (12.1-inch)

The 7454 models with Samsung LCDs (7454-F031 and 7454-F033) havereplaceable backlights. Follow the above procedure to disassemble theLCD assembly. Then replace the backlight, as shown in the followingillustration.

19501


Disassembling the LCD Assembly (15-inch)

Use the following procedure to repair/replace the LCD Head or TouchScreen.

LCD Head

Touch ScreenFrame

Touch Screen

Front Bezel

18160


1. Remove the Flat Flex Cable.

18157

Flat Flex Cable


2. Remove the screws (4).

Screws

LCDHead

18158


3. Remove the screws (4) that hold the Touch Screen Frame to theFront Bezel.

4. Remove the Touch Screen Frame from the Front Bezel.

5. Pull the Touch Screen away from the gasket that keeps it tightagainst the Front Bezel.

18159

Touch ScreenFrame

Touch Screen

Front Bezel


Removing the Power Supply1. Loosen the thumbscrews on the bottom of the base that secures the

Customer Display Cabinet.

2. Press in on both sides of the display cabinet as indicated below andthen remove the Customer Display Cabinet from the base.

15973Thumb Screws (2)

Press on sides


3. Disconnect the Display Cable from the terminal.

15976

4. Disconnect the Power Cord and remove the two screws that securethe Power Supply.

15977

Note: There are no serviceable parts inside the Power Supply.


Circuit BoardsThe sections that follow provide illustrations of various circuit boards,instructions for replacing serviceable components on the boards, andinformation about switch locations and switch settings.

Processor BoardsThe Processor Board supports 64-bit technology and accepts Pentiumprocessors operating at 133 MHz, 166 MHz w/MMX, and 266 MHzw/MMX, as well as faster processor upgrades based on a 66 MHz CPUbus. Pentium I and Pentium III processors are supported. Alsosupported are K6-2 400 MHz AMD processors as well as fasterprocessor upgrades based on a 66 MHz CPU bus.

The 7454 Processor Board available in Release 2.1 supports a PentiumIII processor operating at 600 MHz on a 100 MHz bus. The processorboard has a µPGA socket to mount the processor chip.

The 7454 Processor Board available in Release 2.2 supports a Celeronprocessor operating at 700 MHz on a 100 MHz bus. This processor issoldered to the board and can not be replaced without replacing theprocessor board.

Note: Use only NCR certified replacement processors to avoid risk ofinstalling a processor with supply voltage requirements not supportedby the Processor Board.

The Processor Board contains an integrated Ultra-DMA IDE controller.For video, the board contains a high performance 32-bit local busLCD/CRT graphics controller.


Processor Board Components

Pentium I or AMD Processor

F1, 5A, 125VUSB, Kbd.

(5V)

CPU Configuration(SW1)

LithiumBattery(3.3V)

CPU/Conduction Block

16271

Touchscreen ROM(U3)

SODIMM MemoryModule

Flash DiskSocket(U18)

ResetSwitch(SW2)

F2, 5A, 125VRS-232/1 Power

(12V)

F3, 5A, 125VLCD Power(3.3V or 5V)

S/W Activated afterLCD is auto-detected

SystemROM(U21)


Celeron/Pentium III Processor

17591

Motion DetectorLED (J4)

MSR (J3) Inverter (J2)

IDE (J1)

SODIMM

PCI/PCMCIA (J19)

LCD Adapter (J17)

VGA (15)

DualUSB (J13)

LAN (J14)

Serial Port (J10)

Power Supply (J9)

Speaker (J8)

Line Output(J7)

Touchscreen(J5)

POS (J6)

PS/2 Keyboard (J11)

Serial Port (J12)

PC Speaker (J16)S Video (J18)

IRDA (J21)

Internal Serial Ports(J23, J24)

Note: The 600 MHz Pentium III processor on the NCR 7454 2.1terminals plug into a µPGA socket. The 700 MHz Celeron processor onthe NCR 7454 Release 2.2 terminals is soldered to the processor boardand can not be replaced without replacing the processor board.

Memory ModuleThe memory subsystem supports a standard 144-pin SO-DIMM (SmallOnline Dual Inline Memory Module) socket, which is popular innotebook PCs.

Only un-buffered, 3.3 V SODIMMs are supported. Buffered or 5 VSODIMMs cannot be used. Use only synchronous DRAM SODIMMs.(SDRAM).

Note: There are no jumper settings required for the memory size ortype; they are automatically detected by the system BIOS.


Motherboard Replacement

If you replace the motherboard with a newer version, which has theLynx EM4+ Video Controller, the Lynx EM4+ video chip requires BIOSVersion 2.1.2.3 or greater.

Note: The Lynx EM4+ video chip 7454 production break-in occurredon June 17, 2002, S/N 49-35273010.


Removing the Memory ModuleThe memory module is held in place by metal latches on each side. Pryout on the latches to release the module. Remove the module.

Memory Module

15987

Latches

Installing a Memory Module1. Insert the module into the connector at about a 45-degree angle.

2. Pivot the module into position.

15988


Replacing the Lithium Battery

The Processor Board contains a lithium battery, which provides powerto the Real Time Clock and CMOS memory. The battery has anestimated lifetime of five years. The battery can be replaced with aPanasonic or Sanyo CR2032, or equivalent, coin cell lithium battery.This battery has a 220 mAh rating.

Caution: A danger of explosion exists if battery is incorrectly replaced.Replace only with the same or equivalent type as recommended.Discard used batteries according to the manufacturer’s instructions.


1. Remove the battery from its socket. The following illustrationshows a Lithium Battery on a Pentium I Processor Board.

2. Insert the new battery.

Lithium Battery 16254


Replacing the ProcessorNote: This section applies to NCR 7454 Release 1.x, 2.0. and 2.1terminals. The processor is soldered to the processor board on Release2.2 terminals.

The processor is cooled by a heat sink that screwed to the chassis.

1. Pentium I Processor: Remove the Retaining Clip that secures theConduction Block by pressing down as shown in the followingillustration.

15980

Retaining Clip

Conduction Block

Pentium III Processor: Remove the Retaining Clip that secures theConduction Block by pressing down and out as shown in thefollowing illustration.

18469

Conduction Block

Retaining Clip


Caution: When re-assembling, remember to replace the screw thatsecures the Conductor Block to the chassis. This is critical for heatdissipation.

2. Unlock the pins from the socket by inserting a small flatscrewdriver (1/8" blade) in the socket slot and prying the processorchip/heat sink as shown below. This unlocks the pins in the socket.

16253


The processor is mounted in a 321-pin Screwdriver Actuated ZIF(SAZ) socket. The SAZ socket locks/unlocks the processor pins inplace by sliding the top plate to one side.

16281Socket Unlocked Socket Locked

Gap

NoGap

NoGap

Note: The socket is fully locked (unlocked) when you cannot (can) seea gap in the socket mechanism as shown above.

3. Remove the CPU and Heat Sink. Note how the existing processor ispositioned in the socket. Pin #1 is located at the flattened corner ofthe chip.


4. Separate the processor from the Conduction Block and place it inan anti-static packing.

16265Pin 1

Conduction Grease

5. Be sure the SAZ socket on the replacement Processor Board is in theunlocked position. Place the new processor over the socket with pin#1 properly positioned, and then guide the pins gently into place.Once it is aligned in the socket, push the processor into the socketuntil it is fully seated. The CPU should insert into the socket withminimum effort.


6. Using a flat screwdriver, latch the pins in the socket as shownbelow. Be sure to apply sufficient force to lock the socket into theno gap position (see illustration in Step 2). You should be able tofeel the socket latching into the locked position. If the socket is notfully latched the terminal will fail to boot.

16253b

7. Spread some heat conducting grease on the top of the processor,and place the heat sink on the processor.

8. Re-install the retaining clip, snapping the ends of the clip into therecesses on either side of the processor socket.


CPU/System Speed Settings

Pentium I ProcessorSW1 must be configured to support the various types and speeds ofprocessor chips. The default setting (shown below) supports the 133MHz.

12

3

ON

45

6

SW1

16296

Strapping shown for133 MHz, 3.1V chip

SW1 Definition TableCPU Type(Intel Pentium)

CPU(MHz)

Host Bus(MHz)

CPUCore

SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6

133-VRT 133 66 3.1 V OFF ON ON OFF OFF ON

166-MMX 166 66 2.45 V OFF ON OFF OFF OFF ON

166-MMX 166 66 1.9 V ON OFF ON OFF ON OFF

266-MMX 266 66 1.9 V ON OFF OFF ON ON OFF


Pentium III Processor

18003

12

3

OFF

Strapping forMobile Pentium III 600 MHz,100 MHz Bus

ON

SW1 Definition Table

CPU Type Host Bus (MHz) SW1-1 SW1-2 SW1-3

N/A 66 ON ON Reserved

Mobile Pentium IIIMobile Celeron

100 OFF ON Reserved

Note: There are no strapping options on the 7454 Release 2.2processor board equipped with the Pentium III 700 MHz processor.


You can identify the CPU type by reading the information on thebottom of the chip. The CPU speed is the last three numbers in the FVnumber. The Core Voltage is listed at the end of the SL number. Theexamples below are typical.

16441

CPU SpeedCore Voltage

133 MHz CPU133/166 MHz CPU

17401CPU SpeedCore Voltage

266 MHz CPU


Powered RS-232 Configuration (RS-232/1)

This section applies to “old style” Pentium I processors. Use J20 toconfigure RS-232/1 as a standard RS-232 port or to have power atpin 9.

16297

RS-232/1 Power(J20)

RS-232 Port 1 (Pin 9) J20 Position

+12 V 1-2

Ring Indicate (std RS-232) 2-3

Reserved for future use 3-4

Note: Pentium III and AMD processors detect the presence of ascanner and supply power as required.


The default setting (shown below) supports the 266 MHz processor.

12

3

ON

45

6

SW1

17403

Strapping shown for266 MHz, 1.9VCore Voltage

78

SW1 Definition Table

CPU Type CPU(MHz)

HostBus(MHz)

CPU-Core

SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 SW1-6 SW1-7 SW1-8

133-VRT(Intel Pentium)

133 66 3.1 V N/A N/A N/A N/A N/A N/A N/A N/A

166-MMX(Intel Pentium)

166 66 2.45 V ON ON ON ON ON OFF ON ON


166 66 1.9 V ON ON ON ON OFF ON ON ON


266 66 1.9 V ON ON OFF ON OFF ON ON ON

366(AMD K6-2)

366 66 See nexttable

OFF OFF ON See nexttable

See nexttable

See nexttable

OFF OFF

*400(AMD K6-2)

400 66 See nexttable

ON OFF OFF See nexttable

See nexttable

See nexttable

OFF OFF

*Any CPU marked as 450 MHz is set to 400 MHz on the Processor Board.


AMD SW1 SettingThe CPU core voltage is marked on the chip.

CPU Core Voltage SW1-4 SW1-5 SW1-61.7 V OFF OFF ON

1.8 V OFF OFF OFF

1.9 V ON OFF ON

2.0 V OFF ON ON

2.1 V ON OFF OFF

2.2 V ON ON ON

2.45 V ON ON OFF

DMA Channels

The following table lists the default settings.

DMA Data Width System Resource

0 8- or 16-bits Open

1 8- or 16-bits Open

2 8- or 16-bits Floppy

3 8- or 16-bits Parallel Port (for ECP/EPP Config.)

4 Reserved - Cascade channel

5 16-bits LAN

6 16-bits Open

7 16-bits Open


Processor Board Connector Pin-Outs

Connectors Common to all Processor Boards

2.5" IDE Connector (J1)Pin Signal Name Pin Signal Name

1 Reset IDE 2 Ground3 Host Data 7 4 Host Data 85 Host Data 6 6 Host Data 97 Host Data 5 8 Host Data 109 Host Data 4 10 Host Data 11

11 Host Data 3 12 Host Data 1213 Host Data 2 14 Host Data 1315 Host Data 1 16 Host Data 1417 Host Data 0 18 Host Data 1519 Ground 20 N/C21 IDEDRQ 22 Ground23 I/O Write- 24 Ground25 I/O Read- 26 Ground27 IOCHRDY 28 N/C29 DDACK0 30 Ground31 IRQ (14) 32 N/C33 Addr 1 34 N/C35 Addr 0 36 Addr 237 IDE Chip Select 0 38 IDE Chip Select 139 Activity- 40 Ground41 +5 V 42 +5 V43 Ground 44 N/C


Inverter (J2)Pin Name Function

1 +12 + 12 Volts2 DIMINV Inverter Dimmer3 ENABKLT Enable Backlight4 GND Ground

MSR (J3)Pin Name Function

1 T1HO1 Track 1, Output 12 T1HO1 Track 1, Output 23 T1HO1 Track 2, Output 14 T1HO1 Track 2, Output 25 T1HO1 Track 3, Output 16 T1HO1 Track 3, Output 27 GND Ground8 MSRPRES# MSR Present

Motion Detector and Power LED (J4)Pin Name Function

1 PDCATHODE

Motion PhotoDetector2 GND Ground

3 PWRLED Power LED4 N/C RSVD


Touch Screen (J5)Pin Name Function

1 NOV_CLK Novram Clock2 NOV_CS Novram Chip Select3 NOV_DATA Novram Data4 +5 V +5 V5 GND Ground6 GND Ground7 N/C8 SHLD_DRV Shield Drive9 UR Upper Right10 LR Lower Right11 UL Upper Left12 LL Lower Left

POS Board-Parallel and CD (J6)Pin Signal Name Pin Signal Name

1 STROBE- 15 AUTOFEED-2 Data Bit 0 16 ERROR-

3 N/C 17 INIT-4 Data Bit 1 18 SLCT IN-5 Data Bit 2 19 Ground6 Data Bit 3 20 Ground7 Data Bit 4 21 Ground8 Data Bit 5 22 +5 V9 Data Bit 6 23 +5 V10 Data Bit 7 24 Cash

Drawer11 ACK- 25 Solenoid A12 BUSY 26 Solenoid B13 PE (Paper End) 27 +29 V14 SLCT 28 29 V Return


Line Output (J7)Pin Name Function

1 OUT_L Out Left2 N/C No Connect3 N/C No Connect4 N/C No Connect5 OUT_R Out Right6 GND Ground

Speaker Module (J8)Pin Name Function

1 OUT_R Out Right2 GND Ground3 OUT_L Out Left4 SPK DET Speaker Detect


Power Supply (J9)Pin Name Function

1 +5 V + 5 Volts Vcc2 +5 V + 5 Volts Vcc3 +5 V + 5 Volts Vcc4 +12 V + 12 Volts5 +3.3 V + 3.3 Volts Vcc6 +3.3 V + 3.3 Volts Vcc7 +29 V + 29 Volts8 +29 V Ret + 29 Volt return9 GND Ground10 GND Ground11 GND Ground12 GND Ground13 GND Ground14 GND Ground

Serial Ports (J10, J12)Pin Signal Name

1 DCD2 Serial In - (SIN)3 Serial Out - (SOUT)4 DTR-5 GND6 DSR-7 RTS-8 CTS-9 RI (+12 V optional on Serial port #1)


PS/2 Keyboard (J11)Pin Signal Name

1 KBDData2 NC3 GND4 +5 Fused @ 0.5 A5 KBDCLK6 NC

USB (J13)Pin Name Function

1 USB1PWR +5 V2 USB1+ USB Port1 Pos3 USB1- USB Port 1 Neg4 USB1GDN Ground5 USB2PWR +5 V6 USB2+ USB Port2 Pos7 USB2- USB Port 2 Neg8 USB2GND Ground


Ethernet (J14)Pin Name Function

1 TX- Transmit Neg2 TX+ Transmit Pos3 RX+ Receive Pos4 TERMPLAN

E5 TERMPLANE6 RX- Receive Neg

7 TERMPLANE8 TERMPLANE9 TERMPLANE10 TERMPLANE11 LINK Link Integrity LED

12 +5 V +5 Volts13 SPEED Speed LED14 +5 V +5 Volts

Video Monitor Port (J15)Pin Signal Name

1 Red2 Green3 Blue4 No Connect5 Ground6 Ground7 Ground8 Ground9 +5 V (DDC)10 Ground11 No Connect12 DDC Data


Pin Signal Name

13 Horizontal Sync.14 Vertical Sync.15 DDC Clock

PC Speaker (J16)Pin Signal Name

1 SPKR2 +5 V

LCD Port (J17)Pin Signal Name

1 Ground2 Display Enable3 Ground4 LP5 FLM6 Ground7 Panel Data 188 Panel Data 199 Ground10 Panel Data 2011 Panel Data 2112 Ground13 Panel Data 2214 Panel Data 2315 Ground16 Panel Data 1017 Panel Data 1118 Ground19 Panel Data 1220 Panel Data 13


Pin Signal Name

21 Ground22 Panel Data 1423 Panel ID 324 Panel Data 1525 Ground26 Panel Data 227 Panel Data 328 Ground29 Panel Data 430 Panel Data 531 Ground32 Panel Data 633 Panel Data 734 Ground35 Shift Clock36 Ground37 VCON (contrast voltage)38 VLCD (3.3 V or 5 V)39 VLCD (3.3 V or 5 V)40 Enable VEE41 Ground42 Panel Data 943 Panel Data 844 Ground45 Panel Data 146 Panel Data 047 Ground48 Panel ID 049 Panel ID 150 Panel ID 2


PCI (J19)Pin Signal Name Pin Signal Name

A66

GND B66

GNDA6

5GND B6

5GND

A64

GND B64

GNDA6

3IOCHK- B6

3RSTDRV

A62

SD7 B62

VccA6

1+5 V B6

1Vcc

A60

+5 V B60

VccA5

9SD6 B5

9IRQ9

A58

SD5 B58

-5 VA5

7SD4 B5

7-5 V

A56

SD3 B56

DRQ2A5

5GND B5

5-12 V

A54

GND B54

-12 VA5

3GND B5

30WS-

A52

GND B52

+12 VA5

1GND B5

1+12 V

A50

SD2 B50

GNDA4

9SD1 B4

9GND

A48

SD0 B48

GNDA4

7IOCHRDY B4

7SMEMW-

A46

AEN B46

SMEMR-A4

5SA19 B4

5IOW-

A44

SA18 B44

IOR-A4

3SA17 B4

3DACK3-

A42

SA16 B42

DRQ3A4

1SA15 B4

1DACK1-

A40

SA14 B40

DRQ1A3

9SA13 B3

9REFRESH-

A38

SA12 B38

SYSCLKA3

7SA11 B3

7IRQ7


Pin Signal Name Pin Signal Name

A36

SA10 B36

IRQ6A3

5SA9 B3

5IRQ5

A34

SA8 B34

IRQ4A3

3SA7 B3

3IRQ3

A32

SA6 B32

DACK2-A3

1SA5 B3

1TC

A30

SA4 B30

BALEA2

9SA3 B2

9Vcc

A28

SA2 B28

VccA2

7SA1 B2

7Vcc

A26

SA0 B26

OSCA2

5GND B2

5GND

A24

GND B24

GNDA2

3GND B2

3GND

A22

GND B22

MEMCS16-A2

1SBHE- B2

1IOCS16-

A20

LA23 B20

IRQ10A1

9LA22 B1

9IRQ11

A18

LA21 B18

IRQ12A1

7LA20 B1

7IRQ15

A16

LA19 B16

IRQ14A1

5LA18 B1

5DACK0-

A14

LA17 B14

DRQ0A1

3MEMR- B1

3DACK5-

A12

MEMW- B12

DRQ5A1

1SD8 B1

1DACK6-

A10

SD9 B10

DRQ6A9 SD10 B9 DACK7-A8 SD11 B8 DRQ7A7 SD12 B7 VccA6 SD13 B6 Vcc



A5 SD14 B5 VccA4 SD15 B4 MASTER-A3 GND B3 GNDA2 GND B2 GNDA1 GND B1 GND

Connectors Available on Pentium I Processor Boards

CPU Fan (J18)Pin Signal Name

1 +12 V2 GND

Connectors Available on Pentium III Processor Boards

SVideo (J18)Pin Signal Name

1 Luma2 GND3 Chroma

Internal USB (J20)Pin Signal Name

1 +5 V2 INTUSBP-3 INTUSBP+4 LGC GND5 CHS GND6 CHS GND


IRDA (J21)Pin Signal Name

1 IRRX2 GND3 IRTX4 +5 V

CD/DVD ROM Secondary IDE (J22)Pin Signal Name Pin Signal Name

1 CDAUDIO LEFT 2 CDAUDIO RIGHT3 CDAGND 4 GND5 IDE RST# 6 SDD87 SDD7 8 SDD99 SDD6 10 SDD1011 SDD5 12 SDD1113 SDD4 14 SDD1215 SDD3 16 SDD1317 SDD2 18 SDD1419 SDD1 20 SDD1521 0 22 SIDEDRQ23 GND 24 SIDEIOR#25 SIDEIOW# 26 GND27 SIDEIORDY 28 SIDEDACK#29 IRQ (15) 30 NC31 SECDA1 32 NC33 SECDA0 34 SECDA235 SIDECS01# 36 SIDECS03#37 NC 38 +5 V39 +5 V 40 +5 V41 +5 V 42 +5 V43 GND 44 GND45 GND 46 GND



47 GND 48 GND49 NC 50 NC

Internal Serial Ports (J23, J24)Pin Signal Name

1 CD2 DSR3 RXD4 RTS5 TXD6 CTS7 DTR8 RT9 GND10 NC

Connectors Available on AMD Processors

CPU Fan (J22)Pin Signal Name

1 +12 V2 GND


Ethernet 10/100 LAN Interface

The Processor Board contains a 10/100 PCI Ethernet adapter thatconforms to the IEEE 802.3 standard. The Ethernet communicationsinterface supports PXE (pre-boot execution environment) loading via aboot ROM that is integrated with the PC BIOS.

Each Processor Board contains a unique LAN IEEE address. Thisaddress is combined with other configuration parameters into aconfiguration data file, which is then used to program the onboardLAN EEPROM (U34).

The onboard Ethernet circuitry supports twisted pair wiring inaccordance with the following specifications.

Parameter Twisted Pair Ethernet

Standard 10/100 Base-TX IEEE 802.3u

Data Rate 10/100 MB/s

Segment Length 100 m

Max Repeaters between Nodes 4 @ 10 MB/s, 1 @ 100 MB/s

Cable Category 5

All patch panels, drop cables, and tap boxes used with the 10/100Ethernet cable are rated for Category 5 applications.

The Ethernet interface also provides link integrity and Speed LEDs thatare mounted directly on the LAN connector for better visibility. Thelink integrity LED is “ON” when the link connection to the Hub isgood. The Speed LED is “ON” when the system is set to transfer at 100MB/sec.


POS Connector Board

F2, 3A, 125V(Display Power)

F1, 3A, 125V(Cash Dwr Power)

16251

Cash Drawer(J3)

Customer Display(J1)

Processor Board(J2)

Power OK LED(5V & 24V)

POS Connector Board with Microphone Support

17298

Customer Display

Cash DrawerMicrophone

Support

F1, 3A, 125V(Cash Drawer Power)

F2, 3A, 125V(Display)


Power SupplyThe power supply provides power to the terminal through aconnection at the Processor Board. The Processor Board serves as a hubto distribute power to all of the terminal functions:

• PS/2 Keyboard

• PCMCIA Daughter board (future release)

• USB (some USB peripherals require their own power supply)

• Hard Disk

• LCD

• POS Connector Board

• Cash Drawer(s)

• VFD Customer Display

• RS-232/1 (when powered option is selected through J-20)

• Specifications

• 90 to 264 VAC operating range, Universal Input

• 85 Watts

• Desktop (brick) package design

• Meets UL, CSA, TUV, CE Agency Approvals

• Built-in AC EMI filter

• Output over-voltage, over-current and input surge protection

• Regulated triple outputs with Low Ripple


DC Outputs

Following are the power supply output voltages and rated loads peroutput at the cable connector:

• 3.3 VDC @ 2.2 Amps

• 5.0 VDC @ 5.1 Amps

• 12 VDC @ 2.5 Amps

• 29 VDC @ 0.04 Amps

• Watts = 85

Cable Pin Outs

Pin # Voltage

1 5.0 VDC

2 5.0 VDC

3 5.0 VDC

4 12 VDC

5 3.3 VDC

6 3.3 VDC

7 29 VDC

8 29 VRET

9 GND

10 GND

11 GND

12 GND

13 GND

14 FGND


Terminal Power Diagram

16268

ProcessorBoard

PowerSupply

POSConnector

Board

Cash Drawer(29 V)

Customer Display(5 V)

3.3 V5.0 V

12.0 V29.0 V

AC Power


Clearing the PasswordPentium I Board

The password can be cleared by opening the 7454 and shorting theappropriate resistor pins on the Processor Board.

Caution: This procedure clears not only the password, it clears CMOSand all CMOS settings (time, date, IO config, etc.).

1. Turn off power to the 7454.

2. Open the cabinet to gain access to the Processor Board.

3. On the Processor Board, locate R92, which is near the battery.

4. Use a small screwdriver or other conducting device to short acrossthe pins of R92.

Pentium III Board

The password can be cleared by opening the 7454 and shorting theappropriate resistor pins on the Processor Board.

Caution: This procedure clears not only the password, it clears CMOSand all CMOS settings (time, date, IO config, etc.).

1. Turn off power to the 7454.

2. Open the cabinet to gain access to the Processor Board.

3. On the Processor Board, locate R75, which is very near to thebattery.

4. Use a small screwdriver or other conducting device to short acrossthe pins of R75.

Index

—B—Battery

Replacement, 3-42Beep and error codes, 2-2

—C—Clearing password, 3-73Compact flash

Removing, 3-13CPU/system speed settings, 3-48

—D—Disassembly procedures, 3-3DMA channels, 3-53

—E—Error and beep codes, 2-2Ethernet 10/100Base-T, 3-68

—H—Hard disk

Removing, 3-11

—I—Inverter board (12.1-inch)

Removing, 3-21

IRDA connector, 3-5

—L—LCD assembly (12.1-inch)

Removing, 3-24Replacing the Backlight, 3-30

LCD assembly (15-inch)Removing, 3-31

—M—Memory module

Removing, replacing, 3-39Model number, 1-2MSR

Removing, 3-8

—P—Password, clearing, 3-73POS connector board, 3-69

Removing, 3-15POST

Recoverable errors, 2-1Terminal errors, 2-6Test points and beep codes, 2-6

POST errors, 2-1Power supply

Cable pin-outs, 3-71DC outputs, 3-71Removing, 3-35

Specifications, 3-70Power-on self-test, 2-1Processor

Identification, 3-50Replacing, 3-43

Processor boardConnector pin-outs, 3-54Ethernet 10/100 LAN interface, 3-68Removing, 3-15SW1 definition table, 3-48SW1 definition table, 3-49

Processor board components, 3-38

—R—RS-232 port

Strapping for powered port, 3-51

—S—Serial number, 1-2Stereo speaker assembly

Removing, 3-5

B005-0000-1342 Dec 2002 Printed on recycled paper

7454 realpos hardware service guide

Documents

vous protger contre

risque de feu

check air vents

recoverable error occurs

compact flash harness

upper left corner

flat flex cable

maximum performance values