Apple Macintosh Powermac Performa 630 Service Manual
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Service Source
Macintosh Performa 630
Series
Macintosh Performa 630, 630CD, 631CD, 635CD,
636, 637CD, 638CD
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Service Source
Basics
Macintosh Performa 630 Series
Basics General Information - 1
General Information
The Macintosh Performa 630 Series computers are highperformance, low-cost modular computers with multimedia
features, based on the Motorola 68LC040 microprocessor.
The computers in this series are designed to accept a floppy
drive, a hard drive, and an optional CD-ROM drive.
User Controls
User controls include
• Soft power-on control from keyboard
• Front panel sound-control push buttons
• Optional infrared remote control
Basics General Information - 2
Internal Expansion Connections
Four types of expansion slots on the logic board include
• DRAM SIMM expansion slot (1 or 2 slots)
• LC PDS slot
• Communications slot for modems and Ethernet found on
LC 575
• Video-in slot for real-time video display, capture, and
overlay
In addition to expansion slots on the logic board, there is an
expansion ribbon connector for an optional TV tuner card.
The TV-tuner connector provides NTSC and PAL input from
an external TV antenna or cable.
Basics General Information - 3
IDE (Intelligent Device Electronics)
The internal hard drive in the Performa 630 Series
computers uses IDE (Intelligent Device Electronics)
technology, commonly used in DOS-compatible systems.
The internal 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 on the
Performa 630 Series.
Basics General Information - 4
Plastic Panel Design
Performa 630 Series computers are designed for easy
service. Plastic panels cover the metal bottom case, the
metal top cover shield, and the left, right and rear sides of
the metal case. You need to remove just one panel to reach
either the logic board or drives.
Simply remove the front plastic panel (the drive bezel) to
service all drives. Remove the plastic I/0 door to slide out
the logic board.
Basics Product Configuration - 5
Product Configuration
Performa 630
Memory: 4 MB of RAM
Storage: Internal Apple 1.4 MB SuperDrive, Internal 250
MB IDE hard drive
Display: 14-inch Apple Performa Display Plus
Modem: Teleport send-fax/data modem
Basics Product Configuration - 6
Performa 630CD
Memory: 8 MB of RAM
Storage: Internal Apple 1.4 MB SuperDrive, internal 250
MB IDE hard drive, internal AppleCD 300i Plus drive
Display: 14-inch Apple Performa Display Plus
Modem: Teleport send-fax/data modem
Basics Product Configuration - 7
Performa 635CD
Memory: 5 MB of RAM
Storage: Internal Apple 1.4 MB SuperDrive, internal 250
MB IDE hard drive, internal AppleCD 300i Plus drive
Display: 15-inch Apple Performa Display
Modem: Teleport send-fax/data modem
Basics Product Configuration - 8
Performa 636
Memory: 4 MB of RAM
Storage: Internal Apple 1.4 MB SuperDrive, internal 250
MB IDE hard drive
Display: 14-inch Apple Performa Display Plus
Modem: No modem included
Basics Product Configuration - 9
Performa 637CD
Memory: 8 MB of RAM
Storage: Internal Apple 1.4 MB SuperDrive, internal 250
MB IDE hard drive, internal Apple CD 300i Plus drive
Display: 15-inch Apple Performa Display
Modem: Teleport send-fax/data modem
TV Tuner Card installed
Video-in Card installed
Basics Product Configuration - 10
Performa 638CD
Memory: 8 MB of RAM
Storage: Internal Apple 1.4 MB SuperDrive, internal 250
MB IDE hard drive, internal Apple CD 300i Plus drive
Display: 15-inch Apple Performa Display
Modem: Teleport send-fax/data modem
TV Tuner Card installed
Video-in Card installed
Basics Rear View Diagram - 11
Rear View Diagram
TV Tuner
Access Cover
Monitor Port
Standby
Power
Button
Security
Lock Port
Power Socket
Basics I/O Door Diagram - 12
I/O Door Diagram
Video-In Card Access Cover
Communication Card
Access Cover
PDS Expansion Card
Access Cover
ADB Port
Printer Port
SCSI
Port
Modem Port
Sound Output Port
Sound Input Port
Basics Logic Board Diagram - 13
Logic Board
Video-In
Card
DRAM
SIMM
Slots
PDS Expansion
Card Slot
Communication
Card
Slot
Diagram
Note:
Some logic boards may
have only one DRAM SIMM
slot. The maximum
expandable DRAM is 36 MB
on logic boards with either
one or two SIMM slots.
Basics Shield/Wiring Harness - 14
Shield/Wiring
Power
Connector
26-Pin IR
Connector
40-Pin
IDE Connector
10-Pin
20-Pin
Floppy
Drive
Connector
TV Tuner Connector
DB-15 Video Connector
Monitor-Out
Daughterboard
4-Pin
CD
Audio
CD Connector
Harness
6-Pin
Header
to P/S
30-Pin
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Specifications
Macintosh Performa 630 Series
Specifications Processor - 1
Processor
CPU
Addressing
Motorola 68LC040 microprocessor
33 MHz
32-bit internal registers
32-bit address bus
32-bit data bus
Specifications Memory - 2
Memory
DRAM
DRAM Frame Buffer
ROM
4 MB built in
Expandable to 36 MB (if logic board has only one SIMM slot, part
number 661-0158 ), or 52 MB (if logic board has two SIMM
slots; one slot is a regular SIMM slot and the other is a singlesided SIMM slot, part number 661-1114).
Note:
See Basics chapter, “Product Configurations,” for specific
model configurations.
1 MB
1 MB
Specifications Memory - 3
VRAM
Video data are stored in the 1 MB DRAM frame buffer. The
Performa 630 Series does not support video memory
expansion.
Specifications Disk Storage - 4
Disk Storage
Floppy Drive
CD-ROM Drive
Hard Drive
1.4 MB Apple SuperDrive Manual Insert
Optional Apple 300i Plus CD-ROM drive
250 MB IDE hard drive
Note:
Performa 630 Series computers do not support internal
SCSI hard drives.
Specifications I/O Interfaces - 5
I/O Interfaces
Serial
SCSI
Apple Desktop Bus
Video
Two RS-232/422 serial ports; mini DIN-8 connectors
One external SCSI port; DB-25 connector
Supports up to six external SCSI devices
One Apple Desktop Bus (ADB) port; mini DIN-4 connector
One DB-15 monitor port on built-in video daughterboard
Specifications I/O Interfaces - 6
Sound
Processor-Direct Slot
Communications Slot
Video-in Slot
TV Tuner
Mono sound input port supports external microphone or
line-level inputs.
Bias current for electret microphone
Stereo sound output jacks at front and rear of the computer
One 114-pin internal expansion slot for LC-compatible
processor-direct card
One 112-pin internal expansion slot for modem and Ethernet
One 60-pin internal video-in slot for real-time video display,
capture, and overlay
One 10-pin port for TV tuner card
Specifications I/O Interfaces - 7
Controls
Softpower control from keyboard
Front panel push button control for sound volume
Front panel stereo headphone jack
Optional infrared remote control
Specifications I/O Devices - 8
I/O Devices
Keyboard
Mouse
Microphone
Apple Extended Keyboard II (other ADB keyboards supported)
ADB Mouse II
Electret, omnidirectional
Operates on 8 VDC supplied by microphone port on CPU
Specifications Sound and Video - 9
Sound and Video
Sound
Video
8-bit monophonic sound input
8-bit stereo sound output (16-bit in CD mode), level nominally
0.5 V RMS into 39 ohms
Internal speaker muted when a plug is inserted into an output jack
Supports all Apple 12-inch, 13-inch, and 14-inch monitors,
Apple 15-inch multiple synchronous monitor, and VGA (640 x
480) monitors at maximum 16-bit per pixel
Supports Apple 16-inch and SVGA (800 x 600) monitors at
maximum 8-bit per pixel
Specifications Electrical - 10
Electrical
Line V oltage
Frequency
Maximum Power
100–240 VAC
50–60 Hz
5 W, not including monitor
Specifications Physical - 11
Physical
Dimensions
Weight
Height: 4.3 in. (10.95 cm)
Width: 16.5 in. (41.95 cm)
Depth: 12.6 in. (32 cm)
Without CD-ROM: 17 lb. (7.7 kg)
With CD-ROM: 19 lb. (8.6 kg)
Weight varies with options
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Troubleshooting
Macintosh Performa 630 Series
Troubleshooting General/ - 1
General
The Symptom Charts included in this chapter will help you
diagnose specific symptoms related to your product. Because cures
are listed on the charts in the order of most likely solution, try
the first cure first. Verify whether or not the product continues to
exhibit the symptom. If the symptom persists, try the next cure.
(Note: If you have replaced a module, reinstall the original module
before you proceed to the next cure.)
If you are not sure what the problem is, or if the Symptom Charts
do not resolve the problem, refer to the Flowchart for the product
family.
For additional assistance, contact Apple Technical Support.
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