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NCR RealPOS™ 5953 USB DynaKey™ Release 2.1 User Guide 200 6 B005-0000-1457 Issue B.
The product described in this book is a licensed product of NCR Corporation. NCR is a registered trademark of NCR Corporation. It is the policy of NCR Corporation (NCR) to improv e products a s new technolog y, components, software , and firmware become availa ble.
i Preface Safety Requirements Caution: This device should only be powered by a power source which meets Safety Extra Low Voltage (SELV) and LPS (Limited Power Source) requirements per UL1950, IEC 950, and EN 60 950. T he power source must be certified by the appropriate safety agency for the country of installation.
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iii T able of Contents Chapter 1: Overview Introduction ........................................................................................... 1-1 Compatibility .................................................................................. 1-2 Features .
iv Installing a Remote Table Top USB DynaKey (5964-K032) ..... 3-4 Installing an Integrated Customer Display (5972-F040) ........... 3-6 Installing a Checkstand Mounted DynaKey ............................ 3-11 Installing a 5953-K023 Checkstand Mount .
v POS-Checkout Style Keyboard ..................................................... 5-5 Double-High / Double-Wide Keys .............................................. 5-6 Keyboard Programmability ........................................................
vi Controller Board.................................................................................. 6-17 Connector Identification .............................................................. 6-17 Connector Pin-Out Information .....................
vii Revision Record Issue Date Remarks A Aug 2002 First issue B Dec 02 Updated Programming Chapter with firmware interface information.
viii Radio Frequency Interference Statements Federal Communicatio ns Commission (FCC) Information to User This equipment has been tested and found to comply with the limits for a Class A digital device, pu rsuant to Part 15 of FCC Ru les.
ix Declaration of Conformity Manufacturer’s Name NCR Corporation Manufacturer’s Address NCR Corporation Retail Systems Group – Atlanta 2651 Satellite Boulevard Duluth, GA 30096-5810 Type of Equipment Information Technology Equipment Model Number Class 5953 Electrical Ratings (Input) 12 V dc, 2.
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Chapter 1: Overview 20064 Introduction The NCR RealPOS 5953 USB DynaKey is a Point-of-Sale (POS) keyboard with a built-in 12.1-inch flat panel Liquid Crystal Display (LCD). Unique to the DynaKey is a set of ATM-style keys ( DynaKeys) , which are located beside the displa y.
1-2 Chapter 1: Overview Compatibility The USB DynaKey is designed for the following terminals: • NCR 7452 (Release 4.0 or later) • NCR 7456 Features • DVI Communications - industry standard vide.
Chapter 1: Overview 1-3 Multi-Color Power LED On the face of the USB DynaKey is a multi-color power LED. The status and condition indicated by the LED are shown as follows.
1-4 Chapter 1: Overview Keylock Positions The USB DynaKey includes a standard NCR Keylock, accessible through the FPGA. There are four positions: Exception, Locked, Retail, and Supervisor.
Chapter 1: Overview 1-5 Special PC Setup Keypad Layout On power-up, the operator can switch the DynaKey into an alternate keypad layout that can be used with many PC B IOS setup and configuration routines. The alternate layout contains keys such as ESC, TAB, END, “+”, “-” and arrow keys which are not available in the normal keypad layout.
1-6 Chapter 1: Overview.
Chapter 2: Site Preparation Physical Environment Operating Range Condition Range Temperature 5° to 45°C Relative Humidity 10% to 90% (Non-condensing) Atmospheric Pressure 3000 meters (max.) Storage Range Condition Range Temperature -10° to 50°C Relative Humidity 10% to 90% Transit Range Condition Range Temperature -40° to 60°C (One week max.
2-2 Chapter 2: Site Prepar ation Electrical Requirements Voltage Tolerance Current (Max) 5953 Module (from Host) +12 V Supply Voltage ± 10% 1600 mA External USB Port +5V ± 5% 500 mA External USB Port +5V ± 5% 500 mA External USB Port +5V ± 5% 500 mA Fingerprint Board (Optional) +5V ± 5% 100 mA Power Consumption Typical Maximum 5953 Module 16.
Chapter 2: Site Pr eparation 2-3 Dimensions 20051 470 mm (18.5 in.) 300 mm (11.7 in.) 255 mm (10.0 in.) 20052 470 mm (18.5 in.) 420 mm (16.5 in.) 366 mm (14.
2-4 Chapter 2: Site Prepar ation 5953-K023 Checkstand Mount The Checkstand Mount is fully adjustable between the minimum and maximum dimensions that are illu strated below. The DynaKey can also be rotated right and left of center (shown) by approximately 90 degrees, as well as tilted from a vert ical position to approximately 45 degrees (shown).
Chapter 2: Site Pr eparation 2-5 There are two positions to install the post to the back of the D ynaKey. 19908 270 mm (10.75 in.) 200 mm (8.0 in.) 105 mm 4.
2-6 Chapter 2: Site Prepar ation.
Chapter 3: Hardware Installation Introduction Caution: This device should only be powered by a power supply source which meets Safety Extra Low Voltage (SELV) and LPS (Limited Power Source) requirements per UL1950, IEC 950, and EN 60 950. The power source must be certified by th e appropriate safety agency for the country of installation.
3-2 Chapter 3: Hardware Install ation Serial Number Location The serial number is located on the bottom edge of the DynaKey module. 19940 Serial Number Label.
Chapter 3: Hardware I nstallation 3-3 Cable Connector Access The cable connectors are located on the bottom of the 5953 assembly. Tilt display to access the cable connectors.
3-4 Chapter 3: Hardware Install ation Installing a USB DynaKey Installing a Remote Tab le Top USB DynaKey ( 5964-K032) This section discusses how to install the USB DynaKey hardware configurations. See the terminal Hardware User’s Guide for specific procedures about how to connect the USB DynaKey to the host terminal.
Chapter 3: Hardware I nstallation 3-5 2. Connect the cables to the DynaKey. • Connect the terminal DVI cable to the DynaKey DVI connector. • Connect the terminal Powered USB cable to the DynaKey Powered USB connector. • Connect external USB devices to the DynaKey USB connectors (optional).
3-6 Chapter 3: Hardware Install ation Installing an Integrated Customer Display (5972-F040) The Integrated 5972 2 x 20 Display i s mounted to the 5953 using feature 5972-F040.
Chapter 3: Hardware I nstallation 3-7 1. Install the Customer Display Post Base. Secure it with screws (4). 19850 Customer Displa y Post Base.
3-8 Chapter 3: Hardware Install ation 2. Route the cable (display connector end) up through the mount components as shown below. This is a tight fit and the connector has to be angled in order to make it though the openings. Use care to not damage the wires.
Chapter 3: Hardware I nstallation 3-9 4. Connect the cable to the display module. a) Remove the Integrated Display Bracket (2 screws). b) Connect the cable to the 2 x 20 VFD Assembly. c) Replace the Integrated Display Bracket. 20054 2 x 20 VFD Assem bly Integrated Display Bracket Phillips PH Screw (4-24 x 0.
3-10 Chapter 3: Hardware I nstallation 5. Install the Customer Display assembly onto the b ase of the table top mount. 19851 6. Connect the Customer Display Cable to a Powered RS-232 connector on the host terminal.
Chapter 3: Hardware I nstallation 3-11 Installing a Checkstand Mounted DynaKey The 5953 USB DynaKey supports the 5953-K023 Checkstand Mount 20065 5953-K023 Checks tand Base Installing a 5953-K023 Checkstand Mount Note: The cable(s) for the USB DynaKey can be routed through the Checkstand Base 1.
3-12 Chapter 3: Hardware I nstallation 2. Slide the Side Cover off the lower half of the Checkstand Base. 3. In the desired location on the coun tertop drill four 6 mm (0.25 in.) holes for the mounting bolts and one 38 mm (1.5 in.) hole for the DynaKey cable(s).
Chapter 3: Hardware I nstallation 3-13 6. Screw the Checkstand Base onto the back of the DynaKey (4 screws). 17323.
3-14 Chapter 3: Hardware I nstallation 7. Route the cables through the upper half of the Checkstand Base. Install the Thumbscrew and the Front Cover. Be sure to leave enough slack in the cables to permit easy tilting of the DynaKey. 17449 8. Plug the LCD cable into the DynaKey.
Chapter 3: Hardware I nstallation 3-15 9. Route the cable(s) through the upper half of the Checkstand Base and install the Thumbscrew and the Front Cover. Be sure to leave enough slack in the cable(s) to permit easy tilting of the DynaKey. 10. Route the cable(s) into the lower half of the Checkstand Base and through the countertop.
3-16 Chapter 3: Hardware I nstallation 1. Power up the system. 2. After the memory test completes, hold down key number 10 and key number 12 simultaneously. Make sure both keys are held down together. The 10 and 12 keys must be the first two keys pressed after a power on.
Chapter 3: Hardware I nstallation 3-17 All unlabeled keys are non-functional in Setup Keypad Mode . Ignore any stuck key error messages displayed as a result of the keys being held down. 3. Press the [F2] key to put it into the BIOS configuration routine.
3-18 Chapter 3: Hardware I nstallation Normal Operating Mode After setup and configuration, the keyboard can be reset to exit the special keypad mode . This is done by power cycling the DynaKey, or pressing the 10 and 12 keys simultaneously. This puts the keyboard back into its normal operating mode as shown.
Chapter 3: Hardware I nstallation 3-19 Screen Saving Feature The display has a time-out function that causes the display t o go blank after several minutes of inactivity . The screen saving feature is controlled by NCR platform software integrated into the 5953 drivers.
3-20 Chapter 3: Hardware I nstallation.
Chapter 4: Programming Firmware USB DynaKey Capabilities The NCR USB DynaKey is a multifunction device comprised of several functions, including a keyboard swit ch matrix and a speaker. Both of these functions are controlled by a single field programmable gate array (FPGA).
4-2 Chapter 4: Programming The keyboard has additional capabilities unique to the POS environment. The keyboard firmware supports the following POS functions: • Programmable keyboard matrix • Configurable key click tone FPGA Firmware Defaults During USB initialization all USB de vices are required to enumerate.
Chapter 4: Programmi ng 4-3 Table 1: NCR Proprietary HI D Usages Usage Hexadecimal Value HID_USAGE_PAGE_NCR_MISC 0xFF8F KEYLOCK 0x01 KEYBOARD_TONE 0x02 KEYBOARD_MAP 0x03 KEY_CLICK_INFO 0x11 ERROR_TONE.
4-4 Chapter 4: Programming The MSR interface: The MSR conforms to the USB HID standard for MSRs as described in the HID Usage Tables for POS, Ver 1.02, see http://www.usb.org/developers/hidpage.html#pos . The Key Matrix: The Key Matrix report contains an overlay for the keyboard look-up table.
Chapter 4: Programmi ng 4-5 Keyboard Matrix for 5953 USB DynaKey The keyboard matrix comprises a lis t of key numbers and respective positions within the keyboard transla tion table. The default keyboard map for the 5953 USB DynaKey (Product ID 0x0321) is as follows: Sorted by Offset Sorted by KeyNumber X Y FPGA Offset Key No.
4-6 Chapter 4: Programming Sorted by Offset Sorted by KeyNumber X Y FPGA Offset Key No. Usage 1 Usage 2 System Function XY F P G A Offset Key No. Usage 1 Usage 2 System Function 2 5 42 0 0 0 6 2 100 2.
Chapter 4: Programmi ng 4-7 Sorted by Offset Sorted by KeyNumber X Y FPGA Offset Key No. Usage 1 Usage 2 System Function XY F P G A Offset Key No. Usage 1 Usage 2 System Function 5 4 88 15 0 5D 5 5 5 .
4-8 Chapter 4: Programming Configurable Key Click Tone The FPGA has the ability to sound a short chirp whenever a key is pressed, providing auditory feedback to an operator of the keyboard. This auditory feedback is optional. The FPGA may be configured to make the sound or not to make the sound, depending on the particular application.
Chapter 4: Programmi ng 4-9 Note N freq N freq N freq N freq N freq N freq B 14 62 38 247 62 988 86 3951 110 15804 C 15 65 39 262 63 1047 87 4186 111 16744 Db 16 69 40 277 64 1109 88 4435 112 17740 D .
4-10 Chapter 4: Programmi ng The SetClicks method examines all currently-enumerated HID devices, finds those with a Vendor-ID equal to NCR’s assigned Vendor ID (0x0404). Among all qualified devices found, each device is searched for a KEY_CLICK_INFO feature report that contains Volume , Frequency , and Duration usages.
Chapter 4: Programmi ng 4-11 NCR USB DynaKey Control Parameterization Registry Values Program Parameterization Registry va lues appear under the registry key: [HKEY_LOCAL_MACHINESOFTWARENCRUSBKeyboard.
4-12 Chapter 4: Programmi ng NCR USB DynaKey Control Data Capture Registry Values NCR Data Capture Registry values appear under the registry key: [HKEY_LOCAL_MACHINESOFTWARENCRNCRUsbKeyboardCtlDataCap.
Chapter 4: Programmi ng 4-13 SetUsbKeyMatrix may be launched “by hand” using the Windows Start > Run option, or any equivalent shor tcut technique (desktop, quick- launch pad, menu).
4-14 Chapter 4: Programmi ng Command-line parameters may include a value for the runtime duration. If specified, the applicat ion remains resident only for the requested duration. This permits th e application to be used only during defined events such as system start-up, and after which the application will no longer remain resident in memory.
Chapter 4: Programmi ng 4-15 12.1-Inch USB DynaKey Video Drivers When using 12.1 displays or any ot her displays driven off the C&T 69000 chipset, it is recommended that the video dr ivers for the 69000 be used. These drivers are available on NCR software CD D370-1111-010 0 (previously, G370-0830-0000) .
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Chapter 5: 5953 USB DynaKey Migration Overview The NCR RealPOS 5953 USB DynaKey is a replacement for its predecessor, the 5953-Wedge (PS/2) DynaKey, wi th features and advantages not present in the older product. This chapter is a discussion of those features with some explanat ion of the advantages.
5-2 Chapter 5: 5953 USB DynaKey Migration Another example is the use of standard USB protocols throughout and even standard USB HID device classes where such device standards exist. The design helped develop an additional standard in th e case of the MSR.
Chapter 5: 5953 USB DynaKey Migration 5-3 Discussion The NCR 5953 DynaKey Operator Interface contains an LCD display and a set of keys in a physical configuration that has been found useful to retailers. The keyboards have addi tional features, some optional, that add value to the retail environm ent.
5-4 Chapter 5: 5953 USB DynaKey Migration Feature 5953 Wedge 5953 USB qualified scanners Ports section Power LED Yes Yes Additional ports No Three General Purpose USB ports for Scanner and/or any USB 1.
Chapter 5: 5953 USB DynaKey Migration 5-5 Hot Plug The NCR 5953 USB DynaKey is hot-pluggable . That is, both the DVI and USB connections may be disconnected and the DynaKey replaced without removing power from the terminal. The Wedge DynaKey cannot be removed or replaced without removing power from the terminal.
5-6 Chapter 5: 5953 USB DynaKey Migration The USB DynaKey implements a standard seven-port USB Hub internally, which provides independent connectivity to the several functional sections that comprise the DynaKey. Both USB and Wedge NCR DynaKeys include keys that accept customer-specified key caps and la bels.
Chapter 5: 5953 USB DynaKey Migration 5-7 Keyboard Programmability The 5953 Wedge DynaKey includes the ability to select whether the keypad should be telephone or calculator style. This is implemented with a simple toggle that selects which layout is used.
5-8 Chapter 5: 5953 USB DynaKey Migration Keylock Both Wedge and USB DynaKeys include a 4 position keylock. In the Wedge DynaKey it is an every-unit-item (EUI), whereas in the USB DynaKey, the keylock can be optional if required, as a SCER. The Wedge DynaKey implements the keylock as a PS/2 wedge device.
Chapter 5: 5953 USB DynaKey Migration 5-9 The USB DynaKey implements the MSR as a separate USB HID device, conforming to the published HID standard for MSR devices.
5-10 Chapter 5: 5953 USB DynaKey Migration Smartcard Reader The USB DynaKey has been designed to accommodate an external or internal Smartcard reader that conn ects through USB. An external USB Smartcard reader can be connected to one of the available external USB ports.
Chapter 5: 5953 USB DynaKey Migration 5-11 Key Re-mapping Registry Manipulation T ool A GUI Active-X control for Windows is available (though non- supported by NCR) to simplify manipulation of the DynaKey keyboard re-mapping registry entries. Below is a screen shot of the GUI with the right mouse button clicked to show the current key assignments.
5-12 Chapter 5: 5953 USB DynaKey Migration A common need is toggling the keypad number layout between telephone and calculator style, so a special button is available for that function. The values currently stored in the Registry for NCR 5932 USB DynaKeys can be retrieved by clicking the Read Registry button.
Chapter 5: 5953 USB DynaKey Migration 5-13 Clicking on an individual key enables the Key Number and Usage dialog box. The current assignments are shown and two new key usages may be selected from the drop down boxes. Once selected, the new value can be assigned using the OK button.
5-14 Chapter 5: 5953 USB DynaKey Migration.
Chapter 6: Hardware Service Safety Requirements Carefully follow these safety requ irements before servicing the USB DynaKey. Warning: The DynaKey LCD contains hazardous voltages and should only be serviced by qualified service personnel. Warning: Before servicing the equipment plug your safety strap into a proper grounding outlet.
6-2 Chapter 6: Hardware Service Problem Isolation Procedures NCR offers both on-site and mail-in service for the NCR RealPOS 5953 USB DynaKey. Before calling for service or mailing in your unit for repair, step through the problem isolation procedures below to make sure the DynaKey module is in need of repair.
Chapter 6: Hardware Servic e 6-3 Symptom Probable Cause Solution Speaker not working Speaker h arness not connected Connect speaker harness to DynaKey Controller Board. MSR not working MSR card not oriented properly Ensure that magnetic stripe on card is up when swiped.
6-4 Chapter 6: Hardware Service Symptom Probable Cause Solution No display (Green LED) Internal LCD cable loose Re-seat the LCD harness at the DynaKey Controller Board and LCD ends.
Chapter 6: Hardware Servic e 6-5 Servicing the DynaKey Module This section provides detailed instru ctions on to how to disassemble the DynaKey. Warning: Only properly trained personnel using proper grounding procedures should service the DynaKey. Personal injury could occur, or the DynaKey may be damaged.
6-6 Chapter 6: Hardware Service Removing the Remote Table Top Mount 2. Remove the Left and Right Housings from the mount (one screw on each side). 19907 Screw s (2) 3. Remove the screws (4) that secure the Remote Table Top Mount to the DynaKey module.
Chapter 6: Hardware Servic e 6-7 Removing the Back Cover 4. Remove the Access Cover by applying pressure on the release tabs and then lifting up. 19943a .
6-8 Chapter 6: Hardware Service Removing the MSR 6. Disconnect the MSR Cable (J1) from the Controller Board. 7. Remove the screws (2) that secure the MSR assembly. 8. Push the plastic latching tab down and remove the MSR assembly. Screws (2) Tab MSR Cable 19945 9.
Chapter 6: Hardware Servic e 6-9 MSR Cleaning Cards Part Part Number MSR Cleaning Card, Dry 998-0052929 MSR Cleaning Card, Wet 603-9004998 Removing the Speaker Assembly 10. Disconnect the speaker cable from Controller Board. 11. Slide the speaker out of the metal fingers on the LCD Bracket.
6-10 Chapter 6: Hardware Servic e Removing the Controller Board 12. Disconnect the cables on the Controller Board. • LCD Backlight Connectors • LCD Connector • Speaker Connector • LED Board Co.
Chapter 6: Hardware Servic e 6-11 13. Remove the screws in the Controller Board and in the Co nnector Bracket (6 screws). 14. Remove the board. Note: Verify all are cables free and out of the way prior to removal.
6-12 Chapter 6: Hardware Servic e Removing the LCD 15. Remove the screws (4) that secure the LCD Bracket to the Front Bezel. 20061 Screws (4) 16. Remove the LCD Bracket Assembly.
Chapter 6: Hardware Servic e 6-13 17. Remove the screws (4) that secure the LCD to the LCD Bracket. 20066 USB LCD Bracket Screws (4) LCD.
6-14 Chapter 6: Hardware Servic e Removing the Keypad 18. Remove the screws (3) that secure the Keypad to the Front Bezel. 19924 Screws (3) 19. Remove the keypad.
Chapter 6: Hardware Servic e 6-15 Removing the Keylock Adapter Assembly 20. To Remove Keylock assembly, squeeze the plastic retainers and push the Keylock assembly out the front of the unit.
6-16 Chapter 6: Hardware Servic e 21. Remove the Keylock by prying the Retaining Clip off with a small screwdriver. 22. The LED Board can be removed by prying off the Tinnerman Clip. 19925 Keylock Reta ining Clip Tinnerman Clip Replacing the Keylock assembly 1.
Chapter 6: Hardware Servic e 6-17 Controller Board Connector Identification 19936 Keypad (J2, J3) MSR (J1) Keylock (J6) Not Us ed (J4) Single Port E xternal USB (J9) LED (J5) LCD Back light (J7, J8) S.
6-18 Chapter 6: Hardware Servic e Connector Pin-Out Information DVI Connector Pin Symbol Description 1 CH2- ½ of Channel 2 differential pair 2 CH2+ ½ of Channel 2 differential pair 3 GND TMDS Data 2.
Chapter 6: Hardware Servic e 6-19 Pin Symbol Description 21 n/c Unused 2 nd DVI Link 22 GND TMDS Clock Shield Ground 23 CLOCK+ ½ of Clock differential pair 24 CLOCK- ½ of Clock differential pair 25 .
6-20 Chapter 6: Hardware Servic e USB Connectors Pin Signal Name Typical Wiring Assignment 1 VBUS Red 2 D- White 3 D+ Green 4 GND Black Shell Shield Drain Wire.
Chapter 6: Hardware Servic e 6-21 Cables DVI to DVI 19725b 497-0422831 - 1.0 m (1416-C723-0010) 497-0422832 - 4.0 m (1416-C723-0040) DVI (5953) DVI (Terminal) Powered USB (12 V) to 2 x 4 Locking Connector 20059 497-0424838 - 1.0 m (1416-C757-0010) 497-0424839 - 4.
6-22 Chapter 6: Hardware Servic e DynaKey Cleaning Procedures NCR keyboards are designed for ge neral retail applications. These products are resistant to spills and dust.
Index —5— 5953 DynaKey Table-top mount, 3-5 5953-K023 Checkstand Mount installing, 3-11 5953-K023 Table Top Mount, 2- 4 —C— Cable Length Limitations, 2-2 Cables DVI to CHAMP, 6-21 DVI to DVI, .
Index-2 —M— MSR Cleaning Cards, 6-9 Multi-Color Power LED, 1-3 —N— NCR Platform Software Components, 4-9 NCR USB DynaKey Control, 4- 9 NCR USB DynaKey Control Data Capture Registry, 4-12 NCR U.
Ein wichtiger Punkt beim Kauf des Geräts NCR 5953 (oder sogar vor seinem Kauf) ist das durchlesen seiner Bedienungsanleitung. Dies sollten wir wegen ein paar einfacher Gründe machen:
Wenn Sie NCR 5953 noch nicht gekauft haben, ist jetzt ein guter Moment, um sich mit den grundliegenden Daten des Produkts bekannt zu machen. Schauen Sie zuerst die ersten Seiten der Anleitung durch, die Sie oben finden. Dort finden Sie die wichtigsten technischen Daten für NCR 5953 - auf diese Weise prüfen Sie, ob das Gerät Ihren Wünschen entspricht. Wenn Sie tiefer in die Benutzeranleitung von NCR 5953 reinschauen, lernen Sie alle zugänglichen Produktfunktionen kennen, sowie erhalten Informationen über die Nutzung. Die Informationen, die Sie über NCR 5953 erhalten, werden Ihnen bestimmt bei der Kaufentscheidung helfen.
Wenn Sie aber schon NCR 5953 besitzen, und noch keine Gelegenheit dazu hatten, die Bedienungsanleitung zu lesen, sollten Sie es aufgrund der oben beschriebenen Gründe machen. Sie erfahren dann, ob Sie die zugänglichen Funktionen richtig genutzt haben, aber auch, ob Sie keine Fehler begangen haben, die den Nutzungszeitraum von NCR 5953 verkürzen könnten.
Jedoch ist die eine der wichtigsten Rollen, die eine Bedienungsanleitung für den Nutzer spielt, die Hilfe bei der Lösung von Problemen mit NCR 5953. Sie finden dort fast immer Troubleshooting, also die am häufigsten auftauchenden Störungen und Mängel bei NCR 5953 gemeinsam mit Hinweisen bezüglich der Arten ihrer Lösung. Sogar wenn es Ihnen nicht gelingen sollte das Problem alleine zu bewältigen, die Anleitung zeigt Ihnen die weitere Vorgehensweise – den Kontakt zur Kundenberatung oder dem naheliegenden Service.
