Apple Macintosh Powermac Performa 5280 Service Manual
K
Service Source
Power Macintosh/Performa
5260, 5280 Series
Power Macintosh 5260/100, 5260/120
International Performas 5260/120, 5280
K
Service Source
Basics
Power Macintosh/Performa
5260, 5280 Series
Basics System Overview - 1
System Overview
The Power Macintosh 5260 and 5280 design includes
expansion slots for 68040 LC communications and PDS
cards, as well as other video-in, video tuner, and video-out
options. Disk storage includes an IDE hard drive in a variety
of capacities and a trayloading CD-ROM drive.
Basics 5260/120 and 5280 - 2
5260/120 and 5280
The Performa 5260/120 is sold in Canada and Australia.
The Performa 5280 is sold in Japan. The Power Macintosh
5260/120 is sold in the United States and Canada.
The 5260/120 and 5280 models are similar to the
5260/100, but differ with these features:
• PowerPC 603e processor at 120 MHz clock frequency
• 16 MB of DRAM minimum (32-bit wide, 72-pin fastpaged mode, 80-nanosecond SIMMs)
• AppleCD 1200i CD-ROM
Basics Service Strategy - 3
Service Strategy
Service the Power Macintosh/Performa 5000 series
through module exchange and parts replacements. Customers
can request on-site service from an Apple Authorized
Service Provider Plus (AASP+) or Apple Assurance. They
can also choose carry-in service from an Apple Authorized
Service Provider (AASP).
Ordering
AASPs planning to support the Power Macintosh/Performa
5000 series may purchase service modules and parts to
develop servicing capability. To order parts, use the
AppleOrder system, or refer to the “Service Price Pages.”
Large businesses, universities, and K-12 accounts must
provide a purchase order (PO) on all transactions, including
Basics Service Strategy - 4
orders placed through the AppleOrder system. Service
Providers not enrolled in AppleOrder may fax their orders
to Service Provider Support (512-908-8125) or mail
them to
Apple Computer, Inc.
Service Provider Support
MS 212-SPS
Austin, TX 78714-9125
Warranty and AppleCare
These new computers are covered under the Apple One-Year
Limited Warranty. The AppleCare Service Plan is also
available. Service Providers are reimbursed for warranty
and AppleCare repairs made to these computers. For pricing
information, refer to the AppleCare section in the “Service
Price Pages.”
Basics Service Strategy - 5
Diagnostics
Use MacTest Pro for Power Macintosh to perform
diagnostics on the Power Macintosh/Performa 5000 series.
Design for Serviceability
To access the floppy drive, CD-ROM drive, or front panel
control board, remove the drive and controls bezel. To
service the logic board, hard drive, or video options, remove
the I/O door. The logic board slides out from a connector
similar to the connector on Macintosh LC 630 and LC 500.
The CRT and degauss frame are matched at the factory and are
removed and replaced as a unit. The chassis harness is one
service module, including the metal chassis and logic board
connector with cables.
Basics User Controls - 6
User Controls
User controls include
• Soft power-on control from keyboard
• Front-panel sound-control pushbuttons
• Front-panel brightness-control pushbuttons
• Optional infrared remote control
Basics Internal Expansion Connections - 7
Internal Expansion Connections
Expansion connections on the logic board include
• 2 DRAM SIMM expansion slots
• LC Processor Direct Slot (PDS)
• Communications slot for modems and Ethernet
• Video-in slot for real-time video display, capture, and
overlay
• External video port
An expansion ribbon connector for an optional TV Tuner card
provides NTSC and PAL input from an external TV antenna or
cable.
Basics Intelligent Device Electronics (IDE) Hard Drive - 8
Intelligent Device Electronics (IDE) Hard Drive
The internal hard drive uses Intelligent Device Electronics
(IDE) technology, commonly used in DOS-compatible
systems. The IDE hard drive functions the same as a typical
SCSI hard drive. You must replace IDE drives like-for-like.
The IDE drive does not affect SCSI ID selections or SCSI
termination schemes. Seven external SCSI devices may be
daisy-chained through the external SCSI port.
Basics Processor Direct Slot (PDS) - 9
Processor Direct Slot (PDS)
The LC-PDS is compatible with the PDS in the Macintosh LC
family of computers, but it is not a true PDS. Like the
expansion slot in the other models in the Power Macintosh
and Performa 5000 series, this expansion slot supports
many PDS cards designed to operate with the MC68030 bus.
While the I/O expansion slot accepts PDS cards designed for
the Macintosh LC family of computers, some of those cards
do not work. PDS cards designed to interact with the main
processor—to provide, for example, a RAM cache or an
FPU—will not work in the I/O expansion slot.
Basics Video-In Card - 10
Video-In Card
The Video-In Card is an optional card included with the Apple
Video System. It allows users to digitize video from the TV
Tuner, MPEG Card, and external composite or S-video
inputs. It accepts NTSC, PAL, or SECAM format video and
also provides stereo audio inputs.
Install the Video-In Card into the dedicated 60-pin, 1.75inch video slot.
Basics MPEG Card - 11
MPEG Card
The MPEG Card is an optional card included with the Apple
MPEG Media System. The MPEG Card requires that the
Video-In Card be installed. It provides hardware
decompression for MPEG movie files, enabling full-screen
(through pixel doubling), 30-frames-per-second, 24-bit
video playback with 16-bit audio. After the MPEG movies
are compressed, they are sent to the Video-In Card, which
converts the data into digital format for output to the screen.
Install the MPEG Card in the processor direct slot.
Basics TV Tuner Module - 12
TV Tuner Module
The TV Tuner, an optional module included with the Apple
TV/Video System, turns the computer into a television
receiver. The TV Tuner requires the Video-In Card, which is
also included with the Apple TV/Video System. The TV Tuner
receives incoming television signals from cable or antenna
television inputs, and then sends the information to the
Video-In Card, which converts the data for display on the
screen. In the United States, only NTSC is supported, but
PAL and SECAM are available internationally.
Install the TV Tuner in a separate bay at the rear of the
computer, below the logic board.
Basics TV/FM Radio Tuner Card - 13
TV/FM Radio Tuner Card
The TV/FM radio tuner card turns the computer into a
television and FM radio receiver, complete with remote
control. An expansion ribbon connector for the optional
TV/FM radio tuner card provides NTSC and PAL input from
an external TV antenna or cable. Change channels by typing
the channel number on the keyboard or with the remote
control. Switch between the current and previous channel by
pressing the Tab key. The computer displays the userassigned channel name on the picture in the video window.
Apple Video Player software supports the TV/FM tuner card.
The user can disable channels and require a password to
access the disabled channels. Users can also capture or
freeze a single frame of video or record a segment of video as
a QuickTime movie. It isn’t possible to resize the window
while recording a movie.
Basics TV/FM Radio Tuner Card - 14
The TV picture is in its own window on the desktop, and the
default size of the window is 320x240 pixels. The picture
can be resized from 160x120 pixels up to 640x480 pixels.
The resolution of the picture does not increase at larger
window sizes, but the image is expanded by doubling the
pixel size or by two-dimensional linear interpolation.
The TV signal is carried in YUV format for improved picture
clarity. The YUV format is 16-bit, with 8 bits for the Y
(luminance) channel and 8 bits for the U and V
(chrominance) channels to share by multiplexing. The
picture is clearer because the YUV format carries more
levels of luminance information.
Basics TV/FM Radio Tuner Card - 15
The card is available in versions for NTSC, PAL, and SECAM
television systems. The features of the TV tuner include the
following:
• Remote tuner for 181 broadcast and cable channels (U.S.
version)
• Coaxial connector for TV antenna or cable input (F-type
connector in U.S. and Japanese version, IEC-type
connector in Europe)
• TV picture in a resizable and movable window
• YUV format for improved clarity
• Closed captioning and teletext support
• Software password protection
• Automatic and manual channel programming
• Single remote control for TV and for playback of audio
CDs
Basics TV/FM Radio Tuner Card - 16
The features of the FM radio tuner include the following:
• FM radio frequencies received and displayed
• Stations scanned and searched up and down the frequency
spectrum
• Step frequency
• DX mode to tune out harmonic spillover from other
stations
• Stereo/mono station indicator
• Preset station programming
Basics External Video Connector - 17
External Video Connector
The External Video Connector is an optional module that
provides the computer with video output (mirroring).
Install the External Video Connector in a dedicated 3/4inch, 22-pin slot on the logic board.
Basics Apple Presentation System - 18
Apple Presentation System
The Apple Presentation System (APS) is an external module
that uses the 15-pin video output connector on the
computer, and then provides a video signal for a separate
television display or for recording on a VCR. The APS
supports video mirror mode, where the image on the
television display is the same as the computer’s primary
video monitor. The APS is required for video mirroring.
Basics The Cuda Chip - 19
The Cuda Chip
The Cuda is a microcontroller chip. Its function is to
• Turn system power on and off
• Manage system resets from various commands
• Maintain parameter RAM (PRAM)
• Manage the Apple Desktop Bus (ADB)
• Manage the real-time clock
Many system problems can be resolved by resetting the Cuda
chip. Press the Cuda reset button on the logic board to reset
the Cuda chip. See the 5400 or 5260/5280 logic board
diagrams later in this chapter to locate the Cuda reset
button.
Basics CRT and Degauss Frame - 20
CRT and Degauss Frame
The CRT and degauss frames are precisely matched at the
factory and must be removed and replaced as a unit.
Basics Front View - 21
Front View
Built-In Microphone
CD-ROM Drive (optional)
CD-ROM Drive
Screen Control Buttons
Stereo Speakers
Tilt-and-Swivel Base
Remote Control Sensor
Power-On Light
Keyboard
Headphone Jack
Color Display
Floppy Disk Drive
Sound Control Buttons
Power Key
Mouse
Basics Rear View - 22
Rear View
Rear
Housing
Power
Supply
Assembly
CRT Video
Board
Assembly
Floppy
Drive
Hard
Drive
Tilt-Swivel
Assembly
TV
Tuner
Board
Microphone
Assembly
Analog
Board
Assembly
CD ROM
Drive
Logic
Board
I/O Panel
Assembly
Basics I/O Panel - 23
I/O Panel
Video Input
Access Cover
Printer
ADB
Port
Port
Modem
Port
External Video
Output
Connector Cover
SCSI
Sound
Port
Input
Output
Port
Sound
Port
Communication
Card Access Cover
PDS
Cover
Basics 5260/5280 Logic Board - 24
5260/5280 Logic Board
Monitor-Out Slot
Video-In
Slot
ROM
Slot
Battery
Cuda Reset Button
Communications
Card Slot
PDS
Processor/
Heatsink
DRAM
SIMM Slot
K
Service Source
Specifications
Power Macintosh/Performa
5260, 5280 Series
Specifications Processor - 1
Processor
CPU
5260/100
PowerPC 603e processor
100 MHz
5260/120, 5280
Addressing
PowerPC 603e processor
120 MHz
64-bit PowerPC bus
Specifications Memory - 2
Memory
DRAM
Frame Buffer
ROM
Cache Memory
16 MB DRAM, minimum
Expandable to 64 MB (72-pin, 80 ns or faster SIMMs)
1 MB DRAM on board, for video support
4 MB
256K Level 2
Specifications Disk Storage - 3
Disk Storage
Floppy Drive
Hard Drive
CD-ROM Drive
5260/100
5260/120, 5280
1.4 MB Apple SuperDrive Manual Insert
800 MB, 1.2 GB, or 1.6 GB IDE hard drive
Standard AppleCD 600i drive
AppleCD 1200i drive
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