Apple Macintosh Powermac Performa 600 Service Manual

K Service Source

Macintosh IIvx, IIvi,

Performa 600

Macintosh IIvx, Macintosh IIvi, Performa 600

K Service Source

Basics

Macintosh IIvx, Macintosh IIvi,

Performa 600

Basics	Overview - 1

Overview

This manual includes complete repair procedures for the Macintosh IIvx, Macintosh IIvi, and Performa 600.

Figure: Macintosh IIvx, IIvi, and Performa 600

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Specifications

Macintosh IIvx, Macintosh IIvi,

Performa 600

	Specifications	Processors - 1
		Processors
CPU		Motorola 68030 microprocessor
		Built-in memory management unit (MMU)
		Macintosh IIvi: 16 MHz
		Macintosh IIvx, Performa 600: 32 MHz
Coprocessor		Macintosh IIvx: Motorola 68882 floating-point unit (FPU)
Cache		Macintosh IIvx: 32K
Addressing		32-bit internal registers
		32-bit address bus
		32-bit data bus

Specifications	Memory - 2

RAM

ROM

PRAM

VRAM

With 512K VRAM, these video modes are supported:

Memory

4, 5, or 8 MB, expandable to 68 MB

1 MB

256 bytes of parameter memory

512K or 1 MB, upgradable to 1 MB

• 512 by 384 pixel screens with 2, 4, 8, and 16 bits per pixel

• 640 by 480 pixel screens with 2, 4, and 8 bits per pixel

With 1 MB VRAM, • 512 by 384 pixel screens with 2, 4, 8, and 16 bits per pixel these video modes • 640 by 480 pixel screens with 2, 4, 8, and 16 bits per pixel

are supported:

Specifications	Disk Storage - 3

Disk Storage

Floppy Drive

Hard Drive

CD-ROM Drive

1.4 MB floppy drive

80–400 MB hard drive

Optional CD-ROM drive

Specifications	1/O Interfaces - 4

Expansion

SCSI

Apple Desktop Bus

Serial

1/O Interfaces

Three NuBus slots

One accelerator slot

One SCSI port; DB-25 connector

Supports a maximum of six external devices

Two Apple Desktop Bus (ADB) ports

Low-speed synchronous serial interface

Two RS-232/RS-422 serial ports; mini DIN-8 connectors 230.4 Kbaud maximum

0.92 Mbit/sec., if external clock source is provided

	Specifications	1/O Interfaces - 5
Sound		One sound output port for stereo playback from CDs
		Monaural input port
Video		One video port DB-15 connector
		Supports Apple monitors (8-bit)

	Specifications	I/O Devices - 6
		I/O Devices
Keyboard		Standard or Extended Keyboard connected through Apple Desktop
		Bus (ADB) ports (mini DIN-4)
		Maximum power draw for all ADB devices: 500 mA
		Keyboard draws 25–80 mA

Mouse

Microphone

ADB mouse

Draws up to 80 mA

Electret, omnidirectional microphone

Microphone output voltage is 4 mV peak to peak at normal speaking volume

Specifications	Sound and Video - 7

Apple Monitor

Third-Party

Monitors

Sound

Sound and Video

Macintosh IIvi/vx and Performa 600 video support includes these Apple monitors:

• Apple Color Display

• Macintosh 12-in. Monochrome Display

• Macintosh 12-in. RGB Display

• AppleColor High-Resolution RGB Monitor

• Apple Performa Display/Plus

Nubus video cards allow the computer to support other non-Apple VGA, NCST, and PAL monitors

Custom Sound Chip drives stereo miniature headphone jack

Specifications	Electrical - 8

Electrical

A/C Line Input

A/C Line Output

DC Power

Line voltage: 100–120 VAC Power: 200 W

Output receptacle: 100–240 VAC 3 A maximum

112 W maximum

Specifications	Physical - 9

Temperature

Relative Humidity

Altitude

Physical

Operating: 10–40° C (50–104 ° F) Storage -40 to 47° C (-40 F to 116.6° F)

5–95% noncondensing

Zero to 10,000 ft. (3,048 m)

K Service Source

Troubleshooting

Macintosh IIvx, Macintosh IIvi,

Performa 600

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	Adjust brightness on monitor.
and at least one drive			2	Replace monitor. Refer to appropriate monitor manual to
operate, fan is				troubleshoot defective monitor.
running, and LED is			3	Replace video cable.
lit			4	Replace VRAM SIMMs.
			5	Replace logic board. Retain customer’s SIMMs.
Screen is dark, audio			1	Remove peripherals.
and drive do not			2	Remove NuBus cards.
operate, fan is			3	Replace DRAM SIMMs.
running, and LED is			4	Replace VRAM SIMMs.
lit			5	Replace power supply.
			6	Replace logic board.

	Troubleshooting		Symptom Charts/Video (Continued) - 3
		Video (Continued)
Partial or whole		1	Replace monitor. Refer to appropriate monitor manual to
screen is bright and			troubleshoot defective monitor.
audio is present, but		2	Replace video cable.
no video information		3	Replace VRAM SIMMs.
is visible		4	Replace logic board. Retain customer’s SIMMs.
Screen is completely		1	Verify that external power cables are properly connected.
dark, fan is not		2	Remove peripherals.
running, and LED is		3	Remove NuBus cards and switch on power again. (Combined
not lit			NuBus cards should not draw more than 45 watts.)
		4	Remove accelerator card.
		5	Replace power supply.
		6	Replace logic board. Retain customer’s SIMMs.

Troubleshooting Symptom Charts/Floppy Drive - 4

Floppy Drive

Audio and video are	1	Replace internal floppy drive cable.
present, but internal	2	Replace internal floppy drive.
floppy drive does not	3	Replace logic board. Retain customer’s SIMMs.
operate
Floppy disk ejects,	1	Replace floppy disk.
and display shows Mac	2	Replace floppy drive cable.
icon with blinking	3	Replace internal floppy drive.
“X”	4	Replace logic board. Retain customer’s SIMMs.
Floppy disk does not	1	Switch off system and hold mouse button down while
eject		switching system on.
	2	Eject disk manually.
	3	Replace floppy drive cable.
	4	Replace floppy drive.

Troubleshooting Symptom Charts/Floppy Drive (Continued) - 5

Floppy Drive (Continued)

Floppy drive	1	Push floppy disk completely in.
attempts to eject disk	2	Eject floppy disk manually by pushing opened paper clip into
but doesn’t		hole beside drive slot.
	3	Replace floppy drive.

Troubleshooting Symptom Charts/Hard Drive - 6

Hard Drive

Internal hard drive	1	Turn off virtual memory if it’s on and check to see if hard
runs continuously		drive stops running. Hard drive runs more with virtual
		memory on.
	2	Replace SCSI data cable.
	3	Replace internal hard drive.
	4	Replace logic board. Retain customer’s SIMMs.
Internal hard drive	1	Replace SCSI data cable.
does not operate	2	Replace SCSI power cable.
	3	Replace hard drive.
	4	Replace logic board. Retain customer’s SIMMs.

Troubleshooting Symptom Charts/CD-ROM Drive - 7

CD-ROM Drive

CD-ROM drive does	1	Exchange disc (if disc is dirty or damaged).
not accept a compact	2	Replace CD-ROM drive mechanism.
disc
Macintosh does not	1	Reinstall CD software, and verify that CD-ROM extensions
display CD-ROM		are in System Folder.
drive icon	2	Reinstall system software.
	3	Replace CD-ROM drive mechanism.
	4	Replace power supply.
	5	Replace SCSI data cable.

Troubleshooting Symptom Charts/Peripherals - 8

Peripherals

Works with internal	1	Verify that SCSI select switch on any external device is set
or external SCSI		differently from any internal SCSI device.
device, but does not	2	Verify that hard drive is terminated but optional CD-ROM is
work with both		not terminated.
	3	Replace terminator on external SCSI device.
	4	Replace SCSI select cable on external SCSI device.
Cursor does not move	1	Reboot computer.
	2	Verify that mouse is connected properly.
	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.

Troubleshooting Symptom Charts/Peripherals (Continued) - 9

Peripherals (Continued)

Cursor moves, but	1	Replace mouse.
clicking the mouse	2	Replace logic board. Retain customer’s SIMMs.
button has no effect

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

1Remove duplicate system files from hard drive.

2Clear parameter RAM. Hold down <Command> <Option> <P> <R> during startup but before “Welcome to Macintosh” appears.

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

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

5Replace logic board. Retain customer’s SIMMs.