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2-22 Chapter 2: 7401-4xxx Product Overview Operator Display 19889d The 7401‐4xxx has a 15‐inch TFT (thin film transistor) 1024x760 with 65 K colors display. LCD Adapter Board The signals from the LCD header on the Processor Board are brought to the LCD on a harness. Since there are multiple pin configurations and connector types being used on the LCD, a small adapter board is used to receive the LCD harness and map the signals into the correct pin‐out for the LCD panel. This board has a connector that plugs directly into the LCD panel.
Chapter 2: 7401-4xxx Product Overview 2-23 LCD Backlight Inverter Module An Inverter Board supplies power for the LCD Backlight, which is a separate module in the terminal. The inverter has a connector that receives power, ground, and a Backlight dimming signal from the Processor Board. The inverter generates the high voltage necessary to start and run dual CCFL (cold‐cathode fluorescent lamps) Backlights. A fuse located on the Inverter Board protects power to the inverter. This fuse protects the system from damage in the event of a Backlight or Inverter Board fault. The fuse is not field replaceable; if it blows, the safety characteristics of one or more components on the Inverter Board may have been compromised and the Inverter Board should be replaced. If one or both Backlight tubes become disconnected or otherwise opencircuited, protection circuitry shuts down the inverter. This avoids over‐powering a single tube and also protects against high voltage shorting. The Backlight tubes for the Active displays (TFT) can be replaced. Touch Screen The Touch Screen completely covers the LCD and is mounted directly in front of the LCD, behind the front plastic bezel of the terminal. The touch controller on the Processor Board supports capacitive and resistive touch glass. The touch glass has an integrated harness that is routed into the Processor Board enclosure and is connected to a header on the Processor Board. The touch glass has a glare‐reducing texture that also helps hide fingerprints.
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NCR NCR EasyPoint 7401 Release 2.5
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i Safety Warnings Preface Audience
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iii Grounding Instructions In the e
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v Table of Contents Chapter 1: 7401
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vii Compact Flash (Optional).......
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ix Internal Speaker ...............
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xi Calibration Using MicroTouch (Wi
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xiii Setting Boot Options .........
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xv NCR 7401‐21xx/31xx NT Operatin
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xvii Revision Record Issue Date Rem
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xix IEC & EN Laser Product Label CA
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Chapter 1: 7401-2xxx/3xxx Product O
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Chapter 3: 7401-2xxx/3xxx Hardware
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Chapter 4: 7401-4xxx Hardware Insta
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5-2 Chapter 5: Setup Entering Setup
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5-4 Chapter 5: Setup Setting Passwo
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5-6 Chapter 5: Setup Setting Memory
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5-8 Chapter 5: Setup BIOS Default C
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5-10 Chapter 5: Setup Memory Cache
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5-12 Chapter 5: Setup System Temper
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5-14 Chapter 5: Setup Continuous PO
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5-16 Chapter 5: Setup Interrupts (7
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5-18 Chapter 5: Setup BIOS Default
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5-20 Chapter 5: Setup Cache Memory
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5-22 Chapter 5: Setup System Temper
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5-24 Chapter 5: Setup QuickBoot Mod
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5-26 Chapter 5: Setup Interrupts (7
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5-28 Chapter 5: Setup BIOS Default
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5-30 Chapter 5: Setup Advanced Valu
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5-32 Chapter 5: Setup Memory Map (7
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6-2 Chapter 6: Operating System Rec
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6-10 Chapter 6: Operating System Re
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7-2 Chapter 7: BIOS Updating Proced
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8-2 Chapter 8: NCR 7401 7890/7892 S
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8-4 Chapter 8: NCR 7401 7890/7892 S
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8-6 Chapter 8: NCR 7401 7890/7892 S
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A-2 Appendix A: Cables Corporate ID
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B-2 Appendix B: Feature Kits 2. Sel
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B-4 Appendix B: Feature Kits Kit Nu
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B-6 Appendix B: Feature Kits Kit Nu
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Index-2 Setting boot options, 5‐6
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Index-4 OS Recovery from a Larger D
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