©2000 general digital corporation1

©2000 General Digital Corporation

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www.GenDig.com


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System Overview• 20.1" Diagonal Active Viewing Area

• SXGA (1280 x 1024 pixels) Resolution

• Sunlight Readable (1000+ nits)

• High Contrast (~ 6:1 @ 6000 ft-candles)

• Flicker-Free Brightness 0.5 nits to Max

• Designed and Manufactured in U.S.A.


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System Overview• Local and Remote Brightness Control• Very Low Specular & Diffuse Reflection• BIT/Failure LED Indicators• System Performance/Failures Recorded in

Non-Volatile Memory (Date & Time Stamped)• Field Replaceable Electronic Components• FCC Class A & UL1950 Approvals


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Special Features• SmartBright™ Backlight Assembly

• Intelligent Backlight Controller™

• Icarus “Identify and Replace Before Fail” Software

• CoolBright™ Cooling System


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SmartBright™ Features/Benefits• Interleaved Bulbs

- Singular bulb failures do not affect brightness uniformity or display functionality (Soft Failure).

• Redundant Backlight Inverter

- Each inverter drives half of the interleaved bulbs.

- Singular inverter failure reduces display brightness to 50% (Soft Failure).

- Uniform brightness across display is maintained.


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SmartBright™ Features/Benefits

• Brightness Limited to 1000 nit by IBC– Increases bulb life expectancy.

• Capable of Generating >1300 nits Brightness- Provides “headroom” for eventual bulb decay.

• Failure Reporting to IBC- Inverter Over-Current or Under-Current- Bulb Decay (50 nit increments), Bulb Failure- Backlight Temperature


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IBC Features/Benefits• The Intelligent Backlight Controller (IBC)

augments the UltraBright backlight assembly. It offers:– Advanced System Control, – Alert, – System Monitoring, and – Data logging capabilities.


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IBC Control Features • Digital Dimming Control

– Maintains a peak brightness of 1000 nits at the LCD surface (before contrast filters)

• Continuously monitors and adjusts brightness for bulb decay* and temperature changes.

• Augments performance consistency.

* CCFT tubes typically decay 10% during first 2000 hours of operation due to the following:

» Impurities in the fill gas» UV degradation» Tube blackening


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IBC Control Features • Digital Dimming Control (Cont’d)

– Flicker-free control from 0.5 nits to max brightness.

– Automatically executes SmartBright™ brightness dimming algorithm in response to over-temp condition.

• System power consumption and internal heat reduced by dimming backlights until over-temp condition is eliminated.

• Intelligent response prevents critical failure to electronics without interrupting operation. (Soft Failure)


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IBC Control Features • Thermal Control

– Activates cooling fans after internal ambient reaches programmable “set point”, allowing SmartBright™ bulbs to warm up quickly to maximum brightness from cold start.

– Fan Speed is thermally controlled to reduce excessive noise (40dB max).

– Reduces power consumption/heat dissipation in response to over-temp condition.


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IBC Control Features • BIOS Upgrades

– Performance upgrades can be performed quickly and easily in the field thru the use of Icarus software.

– Upgrades can be done while the display is still operational thereby minimizing inconvenience.

• Service/Warranty Update– Password protection of component serial numbers and

warranty information ensure only authorized repairs.


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IBC Alert Features • Built-in Test (BIT)/Failure LEDs

– Visual self-health indicators (tri-state LEDs) alert operators of failure conditions and assist troubleshooting.

» Power Good » Temperature Good

» Video Standby » Temperature Warning

» Video Ctlr Failure » Over-Temperature

» Fan Failure » Inverter Failure

– More detailed data is recorded in NVRAM for retrieval by Icarus software.


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IBC Monitoring Features

» Bulb Brightness » Fan Operation» Bulb Decay » Inverter Current» Backlight Temp (Current) » Power Supply Voltages» Backlight Temp (Max) » Runtime Hours (System)» Backlight Temp (Min) » Runtime Hours (Fans)» Ambient Temp (Current) » Video Controller Operation» Ambient Temp (Max) » Video Standby» Ambient Temp (Min) » Remote Brightness Sense


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IBC Data Logging • All event data is date & time stamped in NVRAM.• Data is retrievable using Icarus/Daedalus Software.• Other Data Recorded:

– Warranty Date of Individual Components » Password protected to allow updates for repair/replacement.

– Date of Manufacture– Serial Number of Components and System– IBC BIOS Revision– NVRAM Available


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Icarus Overview• Promotes “Intelligent Replacement Before Fail”.• Upload data to General Digital’s National Database

- Facilitates failure trend analysis at design and component level.- Facilitates customer notification of BIOS revisions and

other product enhancements.- Assists service technicians in diagnosis & troubleshooting.

• Upload BIOS Revisions to Enhance Performance.• Update Serial # and Install Dates for Replaced Components

- Authorization/password obtained from GDC service department.- Warranty information is updated at GDC to reflect replacement of

components.


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Icarus User Interface • User can download

and view data from an IBC to analyze performance.

• Data is saved to disk for archiving and performance trend analysis.


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Icarus User Interface• Printable report for

off-line viewing.• Report Includes:

– Unit serial number

– Date data was obtained

– System events


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Icarus User Interface• View serial numbers

and warranty expiration dates for components.

• Update serial numbers and installation dates for replaced components.


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Daedalus Expert System Upgrade• More in-depth information

about current and future system status.

• Detailed solutions to current problems.

• Analyzes available data to recommend replacement of problem components before failure.


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Character Smoothing

Aliasing

Anti-Aliasing

©2000 general digital corporation1

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