Apple macintosh se.30 Service Manual

5 (4)

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Macintosh SE/30

Apple macintosh se.30 Service Manual

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Basics

Macintosh SE/30

Basics

Overview - 1

 

 

 

Overview

This manual includes complete repair procedures for the Macintosh SE/30, shown at left.

Figure: Macintosh SE/30

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Specifications

Macintosh SE/30

 

Specifications

Processor - 1

 

 

 

 

 

 

Processor

CPU

Motorola 68030 microprocessor

 

 

15.667 MHz

 

 

32-bit architecture

 

 

256-byte instruction and data caches

 

 

Built-in paged memory management unit (PMMU)

Coprocessor

Motorola 68882 floating-point unit (FPU); follows IEEE

 

 

standards

 

 

 

 

 

 

 

 

 

 

 

 

Specifications

Memory - 2

 

 

 

RAM

ROM

PRAM

Memory

1 or 4 MB, expandable to 32 MB Upgradeable to 5 MB

256K

256 bytes of user-set parameter memory CMOS custom chip with long-life lithium battery

Specifications

Disk Storage - 3

 

 

 

Disk Storage

Floppy Drive

Hard Drive

1.4 MB floppy drive

Optional 40 or 80 MB hard drive

Specifications

I/O Interfaces - 4

 

 

 

Expansion

SCSI

Apple Desktop Bus

Serial

Sound

I/O Interfaces

One 030 direct slot supporting full 32-bit address and data lines through 120-pin Euro-DIN connector

One 50-pin connector (internal) and one DB-25 connector (external)

Two Apple Desktop Bus (ADB) ports for communication with keyboard, mouse, and other input devices over low-speed, synchronous serial bus

Two RS-232/RS-422 serial ports; 230.4 Kbaud maximum Stereo sound port for external audio amplifier

Specifications

I/O Devices - 5

 

 

 

Keyboards

Mouse

I/O Devices

Apple Keyboard

Apple Extended Keyboard

Mechanical tracking; ADB connector; optical shaft or contact encoding at 3.94 ± 0.39 pulse per mm (100 ± 10 pulses per in.) of travel

Specifications

Sound and Video - 6

 

 

 

Sound and Video

Sound Generator

Apple Sound Chip (ASC) including four-voice, wavetable synthesis and stereo sampling generator capable of driving stereo mini-phone-jack headphones or other stereo equipment

Mixed stereo monophonic sound output through internal speaker

Video Display

Built-in, 9-in. (diagonal) screen; high-resolution, 512 by 342 pixel, bit-mapped display

Color QuickDraw in ROM provides support for grayscale and color video cards installed in the 030 direct slot

Specifications

Electrical - 7

 

 

 

Electrical

Line Voltage

Frequency

Maximum Power

120–240 VAC, RMS automatically configured

48–62 Hz, single phase

75 W

 

Specifications

Physical - 8

 

 

 

 

 

 

Physical

Dimensions

Height: 13.6 in. (34.5 cm)

 

 

Width: 9.6 in. (24.4 cm)

 

 

Depth: 10.9 in. (27.6 cm)

Weight

21.5 lb. (9.75 kg)

 

 

 

 

 

 

 

 

 

 

 

 

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Troubleshooting

Macintosh SE/30

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

1

Turn brightness control clockwise.

and drive operate

2

Check video cable connections.

 

 

 

3

Replace analog board.

 

 

 

4

Replace video board.

 

 

 

5

Replace logic board. Retain customer’s SIMMs.

 

 

 

6

Replace CRT.

Screen is bright and

1

Replace analog board.

audio is present, but

2

Replace video board.

no video information

3

Replace logic board. Retain customer’s SIMMs.

is visible

 

 

 

 

 

Troubleshooting

 

Symptom Charts/Video (Continued) - 3

 

 

 

 

 

 

 

 

Video (Continued)

 

 

 

Screen is completely

1

Replace power supply.

dark and fan is not

2

Replace analog board.

running

 

 

 

Single vertical line is

1

Replace analog board.

displayed

2

Replace video board.

 

 

 

3

Replace logic board. Retain customer’s SIMMs.

 

 

 

4

Replace CRT.

Single horizontal line

1

Replace analog board.

is displayed

2

Replace video board.

 

 

 

3

Replace logic board. Retain customer’s SIMMs.

 

 

 

4

Replace CRT.

 

Troubleshooting

 

Symptom Charts/Video (Continued) - 4

 

 

 

 

 

Video (Continued)

Vertical bars or

1

Replace logic board. Retain customer’s SIMMs.

stripes are displayed

2

Replace analog board.

Horizontal bars or

1

Replace logic board. Retain customer’s SIMMs.

stripes are displayed

2

Replace analog board.

White dot is displayed

1

Verify that yoke cable is connected.

in center of screen

2

Replace analog board.

 

 

3

Replace CRT.

Screen jitters at top

Replace analog board.

left and/or lower

 

 

 

 

right

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Troubleshooting Symptom Charts/Peripheral - 5

Peripheral

Cursor does not move

1

Check mouse connection.

 

2

Inspect inside of mouse for buildup of dirt and other

 

 

contaminants. Clean mouse if necessary.

 

3

Reset PRAM.

 

4

If mouse was connected to keyboard, connect it to ADB port

 

 

instead. If mouse works, replace keyboard.

 

5

If mouse does not work in any ADB port, replace mouse.

 

6

Replace logic board. Retain customer’s SIMMs.

Cursor moves, but

1

Replace mouse.

clicking mouse

2

Replace logic board. Retain customer’s SIMMs.

button has no effect

 

 

 

Troubleshooting

Symptom Charts/Peripheral (Continued) - 6

 

 

 

 

 

 

Peripheral (Continued)

 

 

Cannot double-click to open application, disk, or server

1Remove any multiple system files on hard drive.

2Clear parameter RAM. (System 7: Hold down <Command> <Option> <P> <R> during startup but before “Welcome to Macintosh” appears. System 6: Hold down <Command> <Option> <Shift> keys and select Control Panel from Apple pull-down menu.) Reset mouse controls.

3If mouse was connected to keyboard, connect it to ADB port instead. If mouse works, replace keyboard.

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

5Replace logic board. Retain customer’s SIMMs.

 

 

Troubleshooting

 

Symptom Charts/Peripheral (Continued) - 7

 

 

 

 

 

 

 

 

Peripheral (Continued)

 

 

 

Known-good

1

Make sure that Chooser and Control Panel are set correctly.

LaserWriter does not

2

Make sure correct version of system software is being used.

print

 

Make sure software is known-good.

 

 

 

3

Reset PRAM.

 

 

 

4

Refer to Networks and Communications manual.

No response to any

1

Check keyboard connection to ADB port.

key on keyboard

2

Replace keyboard cable.

 

 

 

3

Replace keyboard.

 

 

 

4

Replace logic board. Retain customer’s SIMMs.

 

Troubleshooting

 

Symptom Charts/Peripheral (Continued) - 8

 

 

 

 

 

Peripheral (Continued)

Known-good

1

Make sure that Chooser and Control Panel are set correctly.

ImageWriter or

2

Make sure correct version of system software is being used.

ImageWriter II does

 

Make sure software is known-good.

not print

3

Reset PRAM.

 

 

4

Replace printer interface cable.

 

 

5

Replace logic board. Retain customer’s SIMMs.

 

 

 

 

 

 

 

 

 

 

 

 

Troubleshooting Symptom Charts/Floppy Drive - 9

Floppy Drive

Audio and video are

1

Replace bad disk.

present, but one

2

Replace floppy drive data cable.

internal floppy drive

3

Replace internal floppy drive.

does not operate

4

Replace logic board. Retain customer’s SIMMs.

External floppy drive

1

Replace bad disk.

does not operate

2

Make sure external floppy drive is on right side of Macintosh

 

 

SE/30.

 

3

Replace external drive.

 

4

Replace logic board. Retain customer’s SIMMs.

Disk ejects; display

1

Replace disk with known-good system disk.

shows icon with

2

Replace floppy drive.

blinking “X”

3

Replace logic board. Retain customer’s SIMMs.

Troubleshooting Symptom Charts/Floppy Drive (Continued) - 10

Floppy Drive (Continued)

Unable to insert disk

1

Insert opened paper clip into hole beside drive.

all the way

2

Switch off system power and hold mouse button down while

 

 

switching power back on (to complete eject cycle).

 

3

Replace floppy drive.

Internal floppy drive

1

Replace bad disk.

runs continuously

2

Replace floppy drive.

 

3

Replace logic board. Retain customer’s SIMMs.

 

4

Replace floppy drive data cable.

Does not eject disk

1

Insert opened paper clip into hole beside drive.

 

2

Switch off system and hold mouse button down while

 

 

switching system back on (to complete eject cycle).

 

3

Replace floppy drive.

 

 

 

 

 

 

 

 

Troubleshooting Symptom Charts/Hard Drive - 11

Hard Drive

Internal or external

1

Verify that SCSI loopback card is not attached.

hard drive does not

2

Replace hard drive data cable.

operate

3

Replace hard drive.

 

4

Replace logic board. Retain customer’s SIMMs.

Works with internal

1

Verify SCSI device switch setting on external device.

or external SCSI

2

Replace terminator on external device.

device but not with

3

Verify that terminator is installed on internal hard drive.

both

4

Replace hard drive select cable.

 

 

 

 

 

 

 

 

Troubleshooting Symptom Charts/Miscellaneous - 12

Miscellaneous

Clicking, chirping,

1

Verify analog board cable is connected at J12 on logic board.

or thumping sound

2

Replace power supply.

 

3

Replace analog board.

 

4

Replace logic board. Retain customer’s SIMMs.

Smoke/odor

1

Replace power supply.

 

2

Replace analog board.

No video, no audio, and

1

Connect power cord.

no drive operation

2

Switch power on.

 

3

Replace power cord.

 

4

Replace power supply.

 

5

Replace analog board.

 

6

Replace logic board. Retain customer’s SIMMs.

Troubleshooting Symptom Charts/Miscellaneous (Continued) - 13

Miscellaneous (Continued)

“Sad Macintosh” icon

1

Replace bad disk.

 

 

2

Replace SIMM(s) if code matches any of those given in

 

 

 

“Isolating a Faulty SIMM” in Hardware/Memory.

 

 

3

Replace logic board. Retain customer’s SIMMs.

 

“Sad Macintosh” icon

Replace logic board. Retain customer’s SIMMs.

 

and black vertical

 

 

 

line are displayed;

 

 

 

screeching sound

 

 

 

 

 

 

 

 

 

 

 

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Take Apart

Macintosh SE/30

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