Apple 17-INCH manual Flat-Panel Display, Picture size, Black margins

Page 44

CHAPTER 3

Devices and Ports

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Flat-Panel Display

The PowerBook G4 17-inch computer has a built-in, wide-screen, 100 dpi, color flat-panel display with a resolution of 1440 by 900 pixels and measures 17 inches diagonally.

The display is backlit by a cold cathode fluorescent lamp (CCFL). The display uses TFT (thin-film transistor) technology for high contrast and fast response.

In addition to its native resolution (1440 by 900) the display also supports several non-native resolutions, as shown in Table 3-12. The graphics controller IC includes a scaling function that expands displays with those smaller resolutions to fill the screen.

The display’s native resolution, 1440 by 900, has an aspect ratio of 16:10. When selecting a picture resolution with an aspect ration of 4:3, the user can choose to have it displayed with square pixels and black margins on the sides, or with stretched pixels that fill the display from side to side. These options are shown in Table 3-12(page 44).

Table 3-12Picture sizes on the flat-panel display

Picture size	Display area used	Black margins	Shape of pixels
800 by 600	1200 by 900	yes	square
800 by 600	1440 by 900	no	stretched
1024 by 640	1440 by 900	no	square
1024 by 768	1200 by 900	yes	square
1024 by 768	1440 by 900	no	stretched
1152 by 720	1440 by 900	no	square
1440 by 900	1440 by 900	no	square (native)

44Flat-Panel Display

Legacy Document 2003-03-01 © 2003 Apple Computer, Inc. All Rights Reserved.

Image 44

Contents PowerBook G4 17-inch 2003-03-01Apple Inc Contents Expansion Features Abbreviations Contents Figures and Tables Removing RAM expansion slot cover Introduction to PowerBook G4 17-inch Organization of This DocumentIntroduction Overview of PowerBook G4 17-inch PowerBook G4 17-inch FeaturesAppearance 1Front view of the computer Peripheral Devices System SoftwareOpen Firmware Computer IdentificationOperating Modes Power Saving FeaturesReduced Processor Performance Overview of PowerBook G4 17-inch System Software Block Diagram and Buses Block DiagramMain ICs and Buses PowerPC G4 MicroprocessorMicroprocessor and Caches Intrepid Controller and Buses Level 2 CacheLevel 3 Cache Bus Destinations Width of data pathBoot ROM FireWire ControllersSystem RAM Ethernet ControllerController DMA SupportInterrupt Support USB InterfaceUltra ATA-100 Interface ATA-33 InterfaceAirPort Extreme Interface Power ControllerSound Circuitry CardBus Controller IC USB Connectors Pin Signal nameUSB Ports VCCUSB Storage Devices FireWire PortsFireWire 400 Connector FireWire 800 Connector Pin Signal name DescriptionTPA R TPB RBooting from a FireWire Device Target Disk ModePin Signal name Signal definition Ethernet PortInternal Modem RXNAirPort Extreme Data SecurityAirPort Extreme Software Bluetooth TechnologyAirPort Extreme Hardware Hard Disk Dimensions Hard Disk DriveHard Disk Connector 4Maximum dimensions of the internal hard diskSignal Assignments Pin number Signal nameATA Signal Descriptions Signal name Signal descriptionSuperDrive DVD-R /CD-RW Media type Reading speed maximum Writing speedMedia type Reading speed maximum TrackpadKeyboard Changing the Operation of the Keyboard Keyboard Illustrations7Alternate operations of function and control keys Keyboard 8Embedded numeric keypad operation Keyboard Using the Fn Key Using the Num Lock KeyFunction Keys Key name Control buttonEmbedded Keypad Other Control KeysKey name Control button F10 Keypad functionBlack margins Flat-Panel DisplayPicture size Dual Display and Mirror Mode Analog Monitor ResolutionsExternal Monitors Frame rateDigital Display Resolutions DVI-I Connector15Main signals on the DVI-I connector Picture size Pixel depth 512 by 24 bpp Pin number Video output connectorExternal Video Port Sound System Sound InputsModem Activity Sound Signals Sound OutputsBuilt-in Microphone Audio Input JackDigitizing Sound Internal SpeakersDevices and Ports Sound System Accessing the RAM Slots RAM Expansion SlotsMechanical Design of DDR RAM SO-DIMMs Electrical Design of DDR RAM SO-DIMMsConfiguration of DDR RAM SO-DIMMs DDR Sdram DevicesDevice size RAM SO-DIMM Electrical LimitsAddress Multiplexing CardBus Slot Expansion Features CardBus Slot 3D Graphics PowerPC G4 MicroprocessorApple Technical Notes Velocity Engine AltiVec Mac OSKit Open FirmwareRAM Expansion Modules PC Card ManagerUSB Interface FireWire InterfaceATA Devices Digital Visual Interface Wireless NetworksBluetooth Supplemental Reference Documents Bluetooth Abbreviations and Standard Units Other AbbreviationsAsic ATACAS CD-ROMISO JedecLED MDISO-DIMM SPDTmds USB