Post on 17-Oct-2014
transcript
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)
iv
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:
Replace Memorymodule
1-4-1-3 0232: Extended RAM Failed ataddress line:
Replace Memorymodule
Chapter 2: POST Diagnostics 2-3
Beeps Error Message Corrective Action
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.
Replace Memorymodule
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
2-4 Chapter 2: POST Diagnostics
Beeps Error Message Corrective Action
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.
2-6 Chapter 2: POST Diagnostics
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.
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.
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).
3-4 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-5
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.
3-6 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-7
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.
3-8 Chapter 3: Hardware Service
Removing the MSR
1. Remove the MSR screws (2). The following diagram shows theMSR with a Pentium I Processor.
15979
MSR
Chapter 3: Hardware Service 3-9
2. Disconnect the MSR Cable. Note that there are two types ofdisconnects as shown in the following illustrations.
New Style
18000
MSRCable
3-10 Chapter 3: Hardware Service
Old Style
15982
MSRCable
Caution: Use care in replacing the cable. Install it with the “InstallThis Side Up” label facing up.
Chapter 3: Hardware Service 3-11
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
3-12 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-13
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
3-14 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-15
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.
3-16 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-17
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
3-18 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-19
6. Remove the Electronics Box (4 screws).
15991
4 Screws
E-Box
3-20 Chapter 3: Hardware Service
15-inch Version
4 Screws
Reset Button
18155
E-Box
Chapter 3: Hardware Service 3-21
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
3-22 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-23
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
3-24 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-25
Samsung
7454-F031 / 7454-F033
LCD Head
Touch ScreenFrame
Touch Screen
Screen Bezel
Display CabinetFront
19410
LCD Adapter
3-26 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-27
3-28 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-29
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)
3-30 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-31
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
3-32 Chapter 3: Hardware Service
1. Remove the Flat Flex Cable.
18157
Flat Flex Cable
Chapter 3: Hardware Service 3-33
2. Remove the screws (4).
Screws
LCDHead
18158
3-34 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-35
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
3-36 Chapter 3: Hardware Service
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.
Chapter 3: Hardware Service 3-37
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.
3-38 Chapter 3: Hardware Service
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)
Chapter 3: Hardware Service 3-39
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.
3-40 Chapter 3: Hardware Service
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.
Chapter 3: Hardware Service 3-41
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
3-42 Chapter 3: Hardware Service
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.
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.
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
Chapter 3: Hardware Service 3-43
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
3-44 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-45
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.
3-46 Chapter 3: Hardware Service
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.
Chapter 3: Hardware Service 3-47
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.
3-48 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-49
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.
3-50 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-51
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.
3-52 Chapter 3: Hardware Service
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-MMX(Intel Pentium)
166 66 1.9 V ON ON ON ON OFF ON ON ON
266-MMX(Intel Pentium)
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.
Chapter 3: Hardware Service 3-53
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
3-54 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-55
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
3-56 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-57
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
3-58 Chapter 3: Hardware Service
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)
Chapter 3: Hardware Service 3-59
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
3-60 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-61
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
3-62 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-63
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
3-64 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-65
Pin Signal Name Pin Signal Name
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
3-66 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-67
Pin Signal Name Pin Signal Name
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
3-68 Chapter 3: Hardware Service
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.
Chapter 3: Hardware Service 3-69
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)
3-70 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-71
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
3-72 Chapter 3: Hardware Service
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
Chapter 3: Hardware Service 3-73
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.
3-74 Chapter 3: Hardware Service
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