Apple Macintosh Quadra Centris WS60 Service Manual

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Service Source

Macintosh Quadra 610/

Centris 610/WS 60

Macintosh Quadra 610 DOS Compatible

Macintosh Quadra 610

Macintosh Centris 610

Workgroup Server 60

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Basics

Macintosh Quadra 610/Centris

610/WS 60

Basics Overview - 2

Overview

This manual includes
complete repair procedures
for the Quadra 610, Centris
610, and WorkGroup Server
60 shown at left.

Figure: Macintosh Centris 610, Quadra 610, and WS 60

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Specifications

Macintosh Quadra 610/Centris

610/WS 60

Specifications Processors - 1

Processors

Centris 610/AWS 60

Quadra 610/AWS 60

Motorola 68LC040
20 MHz
Built-in memory management unit (MMU)

Note:

Apple does not provide a floating point unit (FPU)

upgrade for this product.

Quadra 610: Optional Motorola 68LC040 or 68040
AWS 60: Motorola 68040
25 MHz
Built-in memory management unit (MMU)

Note:

A floating point unit (FPU) coprocessor is included with

the 68040 processor.

Specifications Processors - 2

Quadra 610, DOS Compatible

DOS Compatible Card

Motorola 68LC040
25 MHz
Built-in memory management unit
DOS compatible card

486SX microprocessor
25 MHz
32-bit addressing
32-bit data paths
One 72-pin SIMM slot supports up to 64 MB expansion, 80 ns or

faster SIMM.

512K, 80 ns video DRAM soldered on board supports standard

VGA, many SVGA, and Macintosh monitors.

32-bit DMA channel supports peripheral access to local memory

and shared memory through the Macintosh Operating System.

Specifications Memory - 3

Memory

Centris 610/ Quadra 610

RAM

ROM

AWS 60

RAM

ROM

4 or 8 MB RAM standard, expandable to 68 MB (80 ns or faster

72-pin SIMM)

1 MB

8 MB RAM standard, expandable to 68 MB (80 ns or faster 72-

pin SIMM)

1 MB

Specifications Memory - 4

PRAM

VRAM

Clock/Calendar

1 MB

256 bytes of nonvolatile parameter memory

512K, expandable to 1 MB (80 ns or faster 68-pin SIMM)
CMOS custom chip with long-life lithium battery

Specifications Disk Storage - 5

Disk Storage

Floppy Drive

Hard Drive

CD-ROM

1.4 MB Apple SuperDrive

Centris 610/Quadra 610: 80 MB to 500 MB hard drive

AWS 60: 230 MB or 500 MB hard drive
Optional internal 5.25-in. CD-ROM drive

Specifications I/O Interfaces - 6

I/O Interfaces

SCSI

Apple Desktop Bus

Serial

One SCSI port; DB-25 connector
Supports a maximum of six external devices (internal SCSI

devices include the computer, which is always device 7)

Two Apple Desktop Bus (ADB) ports; mini DIN-4 connectors
Low-speed synchronous serial interface
Two RS-232/RS-422 serial ports; mini DIN-8 connectors

230.4 Kbps maximum

0.92 Mbps maximum, clocked externally

Internal expansion slot supports either a processor-direct slot

card or 7-inch NuBus card (with appropriate adapter)

Specifications I/O Interfaces - 7

Sound

Video

Ethernet

One stereo-capable output port
One monaural input port

One video port; DB-15 connector
Supports Apple monitors (8-bit)
VGA and SVGA monitors require a special adapter cable

Centris 610: Optional on-board Ethernet port
AWS 60/Quadra 610: On-board Ethernet

Specifications I/O Devices - 8

I/O Devices

Keyboard

Mouse

Microphone

Standard, extended, or adjustable keyboard connected through

either of two ADB ports
Maximum power draw for all ADB devices: 500 mA
Keyboard draws 25–80 mA

ADB Mouse II; mechanical tracking optical shaft or contact

encoding (low power)
Draws up to 80 mA

Optional electret, omnidirectional microphone
Microphone output voltage is 4 mV peak to peak at normal value
Mini phone plug connector

Specifications Sound and Video - 9

Sound and Video

Video Display

Supports Apple monitors, including

• Macintosh 12-in. Monochrome Display

• Macintosh 12-in. RGB Display

• AppleColor High-Res RGB 14-in. Monitor

• Macintosh Color Display

• Macintosh 15-in. Portrait Display

• Macintosh 16-in. Color Display

• Apple Two-Page 21-in. Monochrome Monitor

• Macintosh 21-in. Color Display
Supports NTSC and PAL
Supports VGA monitors (640 pixels by 480 pixels only) and
SVGA monitors (800 pixels by 600 pixels only) with appropriate

adapter cable

Specifications Sound and Video - 10

Sound

Custom sound chip supports stereo playback from compact discs

and computer-generated stereo sounds through stereo output

port
Monaural sound input port

Specifications Electrical - 11

Electrical

Line V oltage

Line Frequency Power

100–240 VAC

50–60 Hz
112 W (not including monitor)

Specifications Physical - 12

Physical

Dimensions

Weight

Height: 3.4 in. (85 mm)
Width: 16.3 in. (415 mm)
Depth: 4.2 in. (107 mm)

14.0 lb. (6.4 kg)

Specifications Environmental - 13

Environmental

Operating Temperature

Storage Temperature

Relative Humidity

Altitude

10–40°C (50–104°F)

–40 to 47°C (–40 to 116.6°F)

10–90% (noncondensing)

0–10,000 ft. (0–3,048 m)

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Troubleshooting

Macintosh Quadra 610/Centris

610/WS 60

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.

Troubleshooting Symptom Charts/Video - 2

Symptom Charts

Video

Screen is dark, audio
and at least one drive
operate, fan is
running, and LED is
lit

1 Reset PRAM.
2 Adjust brightness on monitor.
3 Check cables.
4 Replace monitor. Refer to appropriate monitor manual to

troubleshoot defective monitor.
5 Replace video cable.
6 Replace VRAM SIMMs.
7 Replace logic board. Retain customer’s SIMMs.

Troubleshooting Symptom Charts/Video

(Continued)

- 3

Partial or whole
screen is bright and
audio is present, but
no video information
is visible

Screen is completely
dark, fan is not
running, and LED is
not lit

Video

1 Reset PRAM.
2 Check cables.
3 Replace monitor. Refer to appropriate monitor manual to

4 Replace video cable.
5 Replace VRAM SIMMs.
6 Replace logic board. Retain customer’s SIMMs.

1 Verify that external power cables are properly connected.
2 Remove peripherals.
3 Replace power supply.
4 Replace logic board. Retain customer’s SIMMs.

(Continued)

troubleshoot defective monitor.

Troubleshooting Symptom Charts/Video

(Continued)

- 4

Screen is dark, audio
and drive do not
operate, fan is
running, and LED is
lit

Video

1 Remove peripherals and third-party cards.
2 Replace VRAM SIMMs.
3 Replace DRAM SIMMs.
4 Replace power supply.
5 Replace logic board.

(Continued)

Troubleshooting Symptom Charts/Floppy Drive - 5

Floppy Drive

Audio and video are
present, but internal
floppy drive does not
operate

Floppy disk ejects,
and display shows Mac
icon with blinking
“X”

Floppy disk does not
eject

1 Replace internal floppy drive cable.
2 Replace internal floppy drive.
3 Replace logic board. Retain customer’s SIMMs.

1 Replace floppy disk.
2 Replace floppy drive cable.
3 Replace internal floppy drive.
4 Replace logic board. Retain customer’s SIMMs.

1 Switch off system and hold mouse button down while

switching on the system
2 Eject disk manually.
3 Replace floppy drive cable.
4 Replace floppy drive.

Troubleshooting Symptom Charts/Floppy Drive

(Continued)

- 6

Floppy drive
attempts to eject disk
but doesn’t

Floppy Drive

1 Push floppy disk completely in.
2 Eject floppy disk manually.
3 Replace floppy drive.

(Continued)

Troubleshooting Symptom Charts/Hard Drive - 7

Hard Drive

Internal hard drive
runs continuously

Internal hard drive
does not operate

1 Replace SCSI data cable.
2 Replace internal hard drive.
3 Replace logic board. Retain customer’s SIMMs.

1 Replace SCSI data cable.
2 Replace SCSI power cable.
3 Check power to the hard drive.
4 Replace hard drive.
5 Replace logic board. Retain customer’s SIMMs.

Troubleshooting Symptom Charts/CD-ROM Drive - 8

CD-ROM Drive

CD-ROM drive does
not accept a compact
disc

Macintosh does not
display CD-ROM
drive icon

Compact disc won’t
eject from the drive

1 Exchange disc (if disc is dirty or damaged).
2 Replace 50-pin ribbon cable.
3 Replace CD-ROM drive mechanism.

1 Verify that CD-ROM extension is in System Folder.
2 Verify the disc is in the drive correctly.
3 Replace CD-ROM drive mechanism.
4 Replace power supply.
5 Replace SCSI data cable.

1 Manually eject the compact disc.
2 Press the eject button behind the front bezel (if it is

accessible).
3 Replace CD-ROM drive mechanism.

Troubleshooting Symptom Charts/Peripheral - 9

Peripheral

Works with internal
or external SCSI
device, but does not
work with both

Cursor does not move 1 Reboot computer.

1 Verify that SCSI select switch on any external device is set

differently from any internal SCSI device setting.
2 Verify that hard drive is terminated but optional CD-ROM is

not terminated.
3 Replace terminator on external hard drive.
4 Replace SCSI select cable on external SCSI device.

2 Verify that mouse is connected properly.
3 Reset PRAM.
4 If mouse was connected to keyboard, connect mouse to

computer ADB port instead. If mouse works, replace

keyboard.
5 If mouse does not work in any ADB port on computer, replace

mouse.
6 Replace logic board. Retain customer’s SIMMs.

Troubleshooting Symptom Charts/Peripheral

(Continued)

- 10

Cursor moves, but
clicking the mouse
button has no effect

Double-click does not
open application,
disk, or server

Peripheral

1 Replace mouse.
2 Replace logic board. Retain customer’s SIMMs.

1 Remove duplicate system files from hard drive.
2 Clear parameter RAM. Hold down <Command> <Option> <P>

<R> during startup but before “Welcome to Macintosh”

appears.
3 If mouse was connected to keyboard, connect mouse to

computer ADB port instead. If mouse works, replace

keyboard.
4 If mouse does not work in any ADB port on computer, replace

mouse.
5 Replace logic board. Retain customer’s SIMMs.

(Continued)

Troubleshooting Symptom Charts/Peripheral

(Continued)

- 11

No response to any
key on the keyboard

Peripheral

1 Verify that keyboard is connected to ADB port.
2 Replace keyboard cable.
3 Replace keyboard.
4 Replace logic board. Retain customer’s SIMMs.

(Continued)

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Service Source

T ak e Apart

Macintosh Quadra 610/Centris

610/WS 60