Apple 17-INCH manual External Video Port, Pin number Video output connector

Page 48

CHAPTER 3

Devices and Ports

algorithm also provides robust clock recovery for greater skew tolerance with longer cables or low-cost short cables. For additional information about TMDS, see the references shown in “Digital Visual Interface” (page 63).

External Video Port

The PowerBook G4 17-inch computer has a video port that provides S-video output to a PAL or NTSC video monitor or VCR. The video output connector is a 7-pin S-video connector. Figure 3-10(page 48) shows the arrangement of the pins and Table 3-17(page 48) shows the pin assignments on the S-video connector.

Figure 3-10S-video connector

Table 3-17	Pin assignments for the S-video output connector
Pin number	S-video output connector
1	Analog GND
2	Analog GND
3	Video Y (luminance)
4	Video C (chroma)
5	composite video
6	Unused
7	Unused

An S-video-to-composite adapter is included and accepts an RCA plug for connecting to a composite video device.

The PowerBook G4 17-inch computer provides video output at picture sizes and frame rates compatible with the NTSC and PAL standards; the picture sizes are listed in Table 3-18(page 48). Those picture sizes produce underscanned displays on standard monitors.

Table 3-18	Picture sizes for S-video output
Picture size	Pixel depth
512 by 384	24 bpp

48External Video Port

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

Image 48

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 IdentificationPower Saving Features Reduced Processor PerformanceOperating Modes Overview of PowerBook G4 17-inch System Software Block Diagram and Buses Block DiagramPowerPC G4 Microprocessor Microprocessor and CachesMain ICs and Buses 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 InterfacePower Controller Sound CircuitryAirPort Extreme Interface CardBus Controller IC USB Connectors Pin Signal nameUSB Ports VCCFireWire Ports FireWire 400 ConnectorUSB Storage Devices 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 SecurityBluetooth Technology AirPort Extreme HardwareAirPort Extreme Software 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 speedTrackpad KeyboardMedia type Reading speed maximum 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 functionFlat-Panel Display Picture sizeBlack margins Dual Display and Mirror Mode Analog Monitor Resolutions External Monitors Frame rateDigital Display Resolutions DVI-I Connector15Main signals on the DVI-I connector Pin number Video output connector External Video PortPicture size Pixel depth 512 by 24 bpp 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 DevicesRAM SO-DIMM Electrical Limits Address MultiplexingDevice size CardBus Slot Expansion Features CardBus Slot PowerPC G4 Microprocessor Apple Technical Notes3D Graphics Velocity Engine AltiVec Mac OSKit Open FirmwareRAM Expansion Modules PC Card ManagerFireWire Interface ATA DevicesUSB Interface Wireless Networks BluetoothDigital Visual Interface Supplemental Reference Documents Bluetooth Abbreviations and Standard Units Other AbbreviationsAsic ATACAS CD-ROMISO JedecLED MDISO-DIMM SPDTmds USB