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Apple 578 - page 1
Service Source K Performa 500 Series Macintosh Performa 550, Macintosh Performa 560, Macintosh Performa 575, Macintosh Performa 577, Macintosh Performa 578 ...
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Apple 578 - page 2
Service Source K Basics Performa 500 Series ...
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Apple 578 - page 3
Basics Product Information - 1 Product Information The Performa 500 Series computers are based on a compact “all-in-one” design. This design incorporates an LC-based microprocessor, 14-inch Trinitron display, CD-ROM drive, hard drive, and floppy drive in one enclosure. ...
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Apple 578 - page 4
Basics Product Information - 2 Identifying F eatur es Performa 550 and 560: • 68LC030 processor • Processor-direct slot • CD-300i drive (caddy required) The Performa 550 and 560 ship with different software bundles. Performa 575, 577, 578: • 68LC040 processor • Processor-direct and communications slots • CD-300+i drive (trayloading, cad ...
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Apple 578 - page 5
Service Source K Specifications Performa 500 Series ...
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Apple 578 - page 6
Specifications Processor - 1 Processor Perf orma 550, 560 Motorola 68030 microprocessor 33 MHz Built-in memory management unit (MMU) Perf orma 575, 577, 578 Motorola 68LC040 microprocessor 33 MHz Built-in memory management unit (MMU) Coprocessor Socket for optional math coprocessor ...
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Apple 578 - page 7
Specifications Memory - 2 Memory RAM Perf 550, 560: 4 MB of dynamic RAM on board Perf 575, 577: 5 MB of dynamic RAM on board Perf 578: 8 MB of dynamic RAM on board Expandable to 36 MB (80 ns or faster SIMMs) 72-pin DRAM SIMM connector RO M 1 MB of ROM PRAM 256 bytes of clock/calendar/parameter memory Long-life lithium battery ...
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Apple 578 - page 8
Specifications Memory - 3 VRAM Perf 550, 560: 512K of VRAM on board (up to 256 colors or 8- bit color) Expandable to 768K (up to 32,000 colors or 16-bit color) 68-pin VRAM SIMM connector Perf 575, 577,578: 1MB of VRAM onboard Two VRAM SIMM slots ...
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Apple 578 - page 9
Specifications Disk Storage - 4 Disk Storage Floppy Drive Internal 1.4 MB Apple SuperDrive, manual-insert Hard Drive Perf 550, 560: 80 or 160 MB SCSI Perf 575: 250 MB SCSI Perf 577, 578: 320 MB SCSI CD-R OM Drive Perf 550, 560: Internal AppleCD 300i, double-speed CD-ROM drive Perf 575, 577, 578: Internal AppleCD 300+i, double-speed CD- ROM drive ...
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Apple 578 - page 10
Specifications I/O Interfaces - 5 I/O Interfaces Serial Two RS-232/RS-422 serial ports; mini DIN-8 connectors SCSI One SCSI parallel port; DB-25 connector Connects up to six external SCSI devices A pple Desktop Bus Two Apple Desktop Bus (ADB) ports; mini DIN-4 connectors Maximum of three ADB devices recommended Maximum current draw: 500 mA (Mouse d ...
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Apple 578 - page 11
Specifications I/O Interfaces - 6 Processor -Direct Slot Internal expansion slot for 96 or 114-pin processor-direct expansion cards Communications Slot (Perf 575,577, 578) Internal expansion slot for 50-pin modem and Ethernet cards ...
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Apple 578 - page 12
Specifications I/O Devices - 7 I/O De vices K eyboard Standard 80-key Apple keyboard with numeric keypad; ADB connector Soft power-on switch 2.5 mm travel, 18 mm vertical and horizontal pitch Two-level tilt adjustment Mouse Apple Desktop Bus Mouse II New, ergonomic design Microphone Built-in electret, omnidirectional microphone Speaker Adjustable s ...
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Apple 578 - page 13
Specifications Sound and Video - 8 Sound and V ideo Sound Generator Records at 11 kHz or 22 kHz sample rate Plays back at 11 kHz or 22 kHz sample rate Two speakers with enhanced stereo sound Allows playback and recording of ordinary audio compact discs V ideo Display 14-in. diagonal, 13-in. viewable screen Trinitron CRT with high-contrast glass .26 ...
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Apple 578 - page 14
Specifications Electrical - 9 Electrical Line V oltage 100–240 VAC; Universal power supply Frequency 47–63 Hz, single phase Maximum Po wer 120 W ...
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Apple 578 - page 15
Specifications Physical - 10 Physical Dimensions Height: 17.9 in. (45.5 cm) Width: 13.5 in. (34.4 cm) Depth: 16.5 in. (42.0 cm) W eight 40.5 lb. (18.4 kg) ...
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Apple 578 - page 16
Specifications Environmental - 11 En vironmental Operating T emperature 50–104° F (10–40° C) Storage T emperature -40 to 116° F (-40 to 47° C) Relative Humidity 20–95% noncondensing Altitude 0–15,000 ft. (0–4722 m) ...
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Apple 578 - page 17
Service Source K Troubleshooting Performa 500 Series ...
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Apple 578 - page 18
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 ...
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Apple 578 - page 19
Troubleshooting Symptom Charts/ Video - 2 Symptom Charts Video Screen is black, too dark, or too bright; audio and drive operate 1 Adjust contrast button on front bezel. 2 Adjust brightness. Use Screen Control Panel. 3 Check yoke cable connection. 4 Perform video adjustments. Refer to “Video” in Adjustments chapter. 5 Replace analog board. 6 Re ...
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Apple 578 - page 20
Troubleshooting Symptom Charts/ Video (Continued) - 3 Video (Continued) Single vertical or horizontal line is displayed Note: A thin, gray, horizontal line may be visible across the bottom third of a lit screen. This line is inherent in the design of Trinitron monitors. Do not replace modules. Otherwise, 1 Replace analog board. 2 Replace CRT. Predo ...
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Apple 578 - page 21
Troubleshooting Symptom Charts/ Video (Continued) - 4 Video (Continued) Picture breaks into diagonal lines, or picture rolls vertically or horizontally 1 Perform video adjustments. Refer to “Video” in Adjustments chapter. 2 Replace analog board. Out of convergence (color bleeds from text or lines) 1 Perform convergence adjustment. Refer to “C ...
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Apple 578 - page 22
Troubleshooting Symptom Charts/ Video (Continued) - 5 Video (Continued) Screen jitters or flashes 1 Verify that adjacent computer equipment is properly grounded. Move electrical devices away from monitor. Temporarily shut off all fluorescent lights in area. 2 Check that all ground cables are secure. 3 Replace analog board. Out of focus 1 Perform fo ...
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Apple 578 - page 23
Troubleshooting Symptom Charts/ Video (Continued) - 6 Video (Continued) Flashing or wavy screen or monitor emits high-pitched noise Replace analog board. Raster size too short/ tall or narrow/wide 1 Adjust horizontal or vertical size control. Refer to Adjustments chapter. 2 Replace analog board. Linearity bad (size of text/graphics differs at top, ...
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Apple 578 - page 24
Troubleshooting Symptom Charts/ Video (Continued) - 7 Video (Continued) Raster tilted or shifted 1 Verify that adjacent computer equipment is properly grounded. Move electrical devices away from monitor. Temporarily shut off all fluorescent lights in area. 2 Perform appropriate geometric adjustments in Adjustments chapter. 3 Perform yoke adjustment ...
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Apple 578 - page 25
Troubleshooting Symptom Charts/ Video (Continued) - 8 Video (Continued) Raster not centered 1 Verify that adjacent computer equipment is properly grounded. Move electrical devices away from monitor. Temporarily shut off all fluorescent lights in area. 2 Adjust horizontal or vertical center control. Refer to Adjustments chapter. 3 Replace analog boa ...
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Apple 578 - page 26
Troubleshooting Symptom Charts/ Floppy Drive - 9 Floppy Drive Audio and video are present, but internal floppy drive does not operate 1 Replace bad disk with known-good disk. 2 Replace floppy drive. 3 Replace logic board. Retain customer’s SIMMs. 4 Replace floppy drive. Disk ejects; display shows icon with blinking “X” 1 Replace bad system di ...
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Apple 578 - page 27
Troubleshooting Symptom Charts/ Floppy Drive (Continued) - 1 0 Floppy Drive (Continued) Does not eject disk 1 Insert opened paper clip into hole beside floppy drive. 2 Switch off system and hold mouse button down while switching system on (to complete eject cycle). 3 Replace floppy drive. Internal floppy drive runs continuously 1 Replace bad disk w ...
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Apple 578 - page 28
Troubleshooting Symptom Charts/ Hard Drive - 11 Hard Drive Internal or external hard drive does not operate 1 Verify that SCSI loopback card is not attached. 2 Verify that external drive is properly terminated. 3 Replace hard drive. 4 Replace logic board. Retain customer’s SIMMs. 5 Replace hard drive. Works with internal or external SCSI device b ...
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Apple 578 - page 29
Troubleshooting Symptom Charts/ CD-ROM Drive - 12 CD-ROM Drive CD-ROM drive does not accept disc 1 Replace disc (if dirty or damaged). 2 Replace CD-ROM drive mechanism. Volume control does not operate correctly Replace chassis harness assembly. Macintosh cannot mount CD-ROM drive Replace CD-ROM drive mechanism. ...
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Apple 578 - page 30
Troubleshooting Symptom Charts/ Peripheral - 1 3 Peripheral Cursor does not move 1 Check mouse connection. 2 If mouse was connected to keyboard, connect it to rear ADB port instead. If mouse works, replace keyboard. 3 If mouse does not work in any ADB port, replace mouse. 4 Replace logic board. Retain customer’s SIMMs. Cursor moves, but clicking ...
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Apple 578 - page 31
Troubleshooting Symptom Charts/ Peripheral (Continued) - 1 4 Peripheral (Continued) Cannot double-click to open application, disk, or server 1 Remove extra system files on hard drive. 2 Clear parameter RAM. Hold down <Command> <Option> <P> <R> keys during system startup but before “Welcome to Macintosh” appears. 3 If mou ...
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Apple 578 - page 32
Troubleshooting Symptom Charts/ Peripheral (Continued) - 1 5 Peripheral (Continued) Known-good ImageWriter or ImageWriter II does not print 1 Make sure that Chooser and Control Panel are set correctly. 2 Replace printer driver and system software with known- good. 3 Replace printer interface cable. 4 Replace logic board. Retain customer’s SIMMs. ...
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Apple 578 - page 33
Troubleshooting Symptom Charts/ Miscellaneous - 16 Miscellaneous Clicking, chirping, or thumping sound 1 Replace analog board. 2 Replace logic board. Retain customer’s SIMMs. Smoke/odor Replace analog board. No video, no audio, and no drive operation 1 Connect power cord. 2 Switch power on. 3 Replace power cord. 4 Replace analog board. 5 Replace ...
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Apple 578 - page 34
Troubleshooting Symptom Charts/ Miscellaneous (Continued) - 1 7 Miscellaneous (Continued) Screen shows “Sad Macintosh” icon and black vertical lines; screeching sound 1 Replace RAM SIMMs on logic board. 2 Replace logic board. Retain customer’s SIMMs. Headphone jack does not operate correctly 1 Verify that headphone jack is seated properly. 2 ...
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Apple 578 - page 35
Service Source K T ake Apart Performa 500 Series ...
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Apple 578 - page 36
Take Apart Rear Housing - 1 Rear Housing No preliminary steps are required before you begin this procedure. ± W arning: This product contains high voltage and a high-vacuum picture tube. To prevent serious personal injury or equipment damage, review CRT safety in Bulletins/Safety. ± W arning: Never use a grounding wriststrap until after dischargi ...
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Apple 578 - page 37
Take Apart Rear Housing - 2 Note: If the rear housing has bronze tape on the rear housing shield, remove the tape before removing the rear housing. Bend back the center ground pin on the rear housing shield about 1/8 inch. Do not replace the bronze tape. Center Ground Pin ...
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Apple 578 - page 38
Take Apart Rear Housing - 3 1 Using a Torx screwdriver, remove the five screws. 2 Lift off the rear housing. Rear Housing ...
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Apple 578 - page 39
Take Apart Fan - 4 Fan Before you begin, remove the rear housing. ± W arning: This product contains high voltage and a high-vacuum picture tube. To prevent serious personal injury or equipment damage, review CRT safety in Bulletins/Safety. ± W arning: Never use a grounding wriststrap until after discharging the CRT. Fan ...
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Apple 578 - page 40
Take Apart Fan - 5 Push out the two latches and remove the fan assembly. Fan Latch Latch ...
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Apple 578 - page 41
Take Apart Analog Board - 6 Analog Board Before you begin, • Remove the rear housing • Discharge the CRT • Remove the anode cap ± W arning: This product contains high voltage and a high-vacuum picture tube. To prevent serious personal injury or equipment damage, review CRT safety in Bulletins/Safety. ± W arning: Never use a grounding wrists ...
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Apple 578 - page 42
Take Apart Analog Board - 7 1 Disconnect the two ground cables from the degauss panels. Degauss Panel Ground Cable Ground Cable ...
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Apple 578 - page 43
Take Apart Analog Board - 8 2 Disconnect the internal microphone connector. Internal WARNING: High Voltage Areas Microphone Connector ...
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Apple 578 - page 44
Take Apart Analog Board - 9 3 Disconnect the following cables from the analog board: • Degauss cable from BP2 (use a small screwdriver to release the latch) • CRT cable from BD1 4 Remove the wires from the cable retainer. Replacement Note: If you are replacing the analog board, remove the cable retainer and reinstall it on the new board. Cable ...
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Apple 578 - page 45
Take Apart Analog Board - 1 0 5 Caution: Twisting, bending, or applying force to the video board assembly could damage the neck of the CRT. Be sure to pull the CRT board assembly straight off the CRT. Remove the CRT board assembly from the neck of the CRT. CRT Board Assembly ...
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Apple 578 - page 46
Take Apart Analog Board - 1 1 6 Remove the analog board. Replacement Note: Perform the cutoff adjustment whenever you replace the analog board. See “Video” in the Adjustments chapter. Analog Board ...
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Apple 578 - page 47
Take Apart I/O Door - 1 2 I/O Door No preliminary steps are required before you begin this procedure. Caution: Review the ESD precautions in Bulletins/ Safety. I/O Door ...
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Apple 578 - page 48
Take Apart I/O Door - 1 3 1 Remove the two screws. 2 Push down on the two tabs and remove the I/O door. Tab Tab I/O Door ...
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Apple 578 - page 49
Take Apart Logic Board - 1 4 Logic Board Before you begin, remove the I/O door. Caution: Follow proper ESD precautions: use a grounded workbench pad, and always wear a grounding wriststrap. Pull out the logic board. Logic Board Logic Board ...
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Apple 578 - page 50
Take Apart Drive Bezel - 15 Drive Bezel No preliminary steps are required before you begin this procedure. Caution: Review the ESD precautions in Bulletins/ Safety. Drive Bezel ...
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Apple 578 - page 51
Take Apart Drive Bezel - 16 Using a flat-blade screwdriver, push up the latch. Pull down and remove the drive bezel. Latch Drive Bezel ...
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Apple 578 - page 52
Take Apart Floppy Drive - 17 Floppy Drive Before you begin, remove the drive bezel. Caution: Follow proper ESD precautions: use a grounded workbench pad, and always wear a grounding wriststrap. Floppy Drive ...
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Apple 578 - page 53
Take Apart Floppy Drive - 18 1 Push down the latch and pull out the floppy drive. Floppy Drive Latch ...
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Apple 578 - page 54
Take Apart Floppy Drive - 19 2 Pull out the floppy drive connector adapter. Replacement Note: Be sure to reinstall the floppy drive connector adapter on the replacement floppy drive. Connector Adapter ...
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Apple 578 - page 55
Take Apart Floppy Drive - 20 3 Remove the four mounting screws and remove the floppy drive from the carrier. Manual-inject Floppy Drive Floppy Drive ...
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Apple 578 - page 56
Take Apart CD-ROM Drive - 21 CD-ROM Drive Before you begin, remove the drive bezel. Caution: Follow proper ESD precautions: use a grounded workbench pad, and always wear a grounding wriststrap. CD-ROM Drive ...
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Apple 578 - page 57
Take Apart CD-ROM Drive - 22 1 Pull up the latch and pull out the CD-ROM drive. CD-ROM Latch Drive ...
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Apple 578 - page 58
Take Apart CD-ROM Drive - 23 2 Pull out the CD connector adapter and the CD audio adapter. Replacement Note: Be sure to reinstall the CD connector adapter on the replacement CD-ROM drive. CD Connector CD Audio Adapter Adapter ...
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Apple 578 - page 59
Take Apart CD-ROM Drive - 24 3 Remove the four mounting screws and remove the CD-ROM drive from the carrier. Replacement Note: Replace the carrier on the new CD- ROM drive. CD-ROM Drive Carrier ...
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Apple 578 - page 60
Take Apart Hard Drive - 25 Hard Drive Before you begin, remove the I/O door. Caution: Follow proper ESD precautions: use a grounded workbench pad, and always wear a grounding wriststrap. Hard Drive ...
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Apple 578 - page 61
Take Apart Hard Drive - 26 1 Push down the latch and remove the hard drive. Hard Drive Latch ...
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Apple 578 - page 62
Take Apart Hard Drive - 27 2 Pull out the hard drive connector adapter. Replacement Note: Be sure to reinstall the hard drive connector adapter on the replacement hard drive. Hard Drive Connector Adapter ...
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Apple 578 - page 63
Take Apart Hard Drive - 28 3 R emove the four screws. 4 Remove the hard drive from the carrier. Replacement Note: Replace the carrier on the new hard drive. Carrier Hard Drive ...
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Apple 578 - page 64
Take Apart Chassis Harness Assembly - 2 9 Chassis Harness Assembly Before you begin, remove the following: • Drive bezel • I/O door • CD-ROM drive • Floppy drive • Hard drive • Logic board • Rear housing • Analog board Chassis Harness Assembly ...
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Apple 578 - page 65
Take Apart Chassis Harness Assembly - 3 0 ± W arning: This product contains high voltage and a high-vacuum picture tube. To prevent serious personal injury or equipment damage, review CRT safety in Bulletins/Safety. ± W arning: Never use a grounding wriststrap until after discharging the CRT. 1 Discharge the CRT. 2 Press in the four latches and l ...
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Apple 578 - page 66
Take Apart Chassis Harness Assembly - 3 1 Chassis Harness T ake Apart Strategy Background After product introduction, Apple Service adjusted the service strategy for the chassis harness assembly in Mac TV, LC 500 Series, and Performa 500 Series computers. Originally, the chassis harness assembly was a single service assembly. As of November 1994, t ...
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Apple 578 - page 67
Take Apart Chassis Harness Assembly - 3 2 • Chassis 922-1824 supports the auto-insert Apple SuperDrive and CD-ROM drives earlier than the 300i+. This chassis requires a floppy drive adapter, and the CD- ROM connector bridge is about 1-1/2 inches above the CD-ROM drive bay. • Chassis 922-0557 supports the manual-insert Apple SuperDrive and CD-RO ...
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Apple 578 - page 68
Take Apart Chassis Harness Assembly - 3 3 For more information, refer to Apple Service Guide , Macintosh Computers, Vol. 3 (1994), page 110. Service Parts No w A vailable f or Chassis 922-1824 and 922-0557 661-0981 Shield Kit (EMI shielding) 922-1825 PCBA Front Panel (front panel control board) 922-1826 Speaker Assembly (speaker and wire) 922-0117 ...
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Apple 578 - page 69
Take Apart Chassis Harness Assembly - 3 4 Service Parts No w A vailable f or Chassis 661-1094 661-0981 Shield Kit (EMI shielding) 922-1825 PCBA Front Panel (front panel control board) 922-1826 Speaker Assembly (speaker and wire) 922-0117 Screw ...
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Apple 578 - page 70
Take Apart Chassis Harness Assembly - 3 5 Chassis Harness T ake Apart Pr ocedur es First remove the chassis harness assembly. EMI Shields 1 Remove the EMI shields in this order: lower shield, front drive and speaker shield, top panel shield. 2 Remove the front panel control board shield if it is present. ...
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Apple 578 - page 71
Take Apart Chassis Harness Assembly - 3 6 Speaker Assembly First remove the EMI shields. Caution: The speaker wire connections on the chassis cable bridge are very fragile. Avoid removing or replacing the speaker wires unless you need to replace the chassis or have isolated the problem to the speaker wires. (That is, replace and test the speakers, ...
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Apple 578 - page 72
Take Apart Chassis Harness Assembly - 3 7 1 Disconnect the speaker wire spade connector from the back of the speaker. 2 Remove the Phillips screws from the front of the speaker. Replacement Note: Detach the replacement speaker from its wires and connect the replacement speaker to the original speaker wires. Speaker W ires Note: The speaker wire con ...
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Apple 578 - page 73
Take Apart Chassis Harness Assembly - 3 8 3 Slide out the wire connector. Replacement Note: The analog board slides into the computer and completes the connection to the speaker wires; thus, the speaker wire connectors must sit securely in the cable bridge. 4 Slide the speaker wire connector into its position in the cable bridge and press up until ...
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Apple 578 - page 74
Take Apart Chassis Harness Assembly - 3 9 Front P anel Control Board First remove the EMI shields. 1 Disconnect the front panel control cable. 2 Remove the Phillips screw and remove the board. ...
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Apple 578 - page 75
Take Apart Chassis Harness Assembly - 4 0 Logic Board Connector and Cable Assembly First remove the EMI shields, speaker assembly, and front panel control board. Overview of remo val pr ocedures (Detailed steps follow the overview.) First disconnect all the connections from the top of the chassis. Then route the cables through to the underside of t ...
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Apple 578 - page 76
Take Apart Chassis Harness Assembly - 4 1 1 Stand at the front of the chassis, looking down at the top of the chassis, and disconnect the following in the order listed: analog board connector, CD-ROM drive connector, and hard drive connector. (The connector tabs operate much like large- scale SIMM slot connectors on logic boards.) CD-ROM Connector ...
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Apple 578 - page 77
Take Apart Chassis Harness Assembly - 4 2 2 Route the analog board and the CD-ROM/hard drive cables through the large square hole behind the CD-ROM drive bay. 3 Push the floppy drive cable (if present) and front panel control cable to the underside of the chassis. 4 Turn the chassis over and stand at the rear of the chassis. 5 Release the three tab ...
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Apple 578 - page 78
Take Apart Chassis Harness Assembly - 4 3 Overview of replacement pr ocedures (Detailed steps follow the overview.) Connect the logic board connector to the underside of the chassis, route the cables through the appropriate openings, and connect the connectors on the top and front of the chassis. After replacing the logic board connector and cable ...
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Apple 578 - page 79
Take Apart Chassis Harness Assembly - 4 4 2 Arrange the logic board connector and cable assembly as shown. 3 Face the connector slot of the logic board connector toward the rear and from the back of the connector route the CD- ROM/hard drive, analog, and floppy drive cables under the connector. Extend the control panel connector cable from the back ...
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Apple 578 - page 80
Take Apart Chassis Harness Assembly - 4 5 Logic Board Connector and Cable Assembly 1 Slide the side extension of the logic board connector down the front side of the small keyed tabs. The logic board connector will snap into place. Note: Be sure the center tab snaps into place at the same time. 2 Route the front panel control cable through the hole ...
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Apple 578 - page 81
Take Apart Chassis Harness Assembly - 4 6 3 Route the floppy drive cable through its opening at the back of the floppy drive bay. 4 Carefully route the analog and CD-ROM/hard drive cables through the large opening behind the CD-ROM drive bay 5 Turn over the chassis so that the top is up and the speakers are at the front, facing you. Important: Be s ...
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Apple 578 - page 82
Take Apart Chassis Harness Assembly - 4 7 facing the front of the chassis and the power cables facing toward the outside edge of the chassis. Slip the connector extension through the slot in the side of the chassis and slide the connector into place. 8 Position the hard drive connector with the connector slot facing the rear of the chassis and the ...
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Apple 578 - page 83
Take Apart Chassis Harness Assembly - 4 8 1 0 To replace the speakers, front control panel board, and EMI shields, reverse the take-apart procedures above. Pay attention to the caution regarding the fragility of the speaker wire connectors and their replacement procedures. ...
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Apple 578 - page 84
Take Apart CRT - 4 9 CRT ± W arning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. B efore you begin, remove the following: • Drive bezel • I/O door • CD-ROM drive • Floppy drive • Hard drive • Logic board • Rear housing CRT ...
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Apple 578 - page 85
Take Apart CRT - 5 0 • Analog board • Chassis harness assembly ± W arning: Never use a grounding wriststrap until after discharging the CRT. 1 Remove the four mounting screws and lift off the two degauss panels. Mounting Screws Degauss Degauss Panel Panel ...
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Apple 578 - page 86
Take Apart CRT - 5 1 2 Lift off the CRT. Replacement Note: Be sure the microphone cable is not caught under the CRT. CRT Microphone Cable ...
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Apple 578 - page 87
Take Apart Internal Microphone - 52 Internal Microphone Before you begin, remove the following: • Drive bezel • I/O door • CD-ROM drive • Floppy drive • Hard drive • Logic board • Rear housing • Analog board • Chassis harness assembly • CRT Internal Microphone ...
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Apple 578 - page 88
Take Apart Internal Microphone - 53 ± Warning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. ± W arning: Never use a grounding wriststrap until after discharging the CRT. 1 Push out the two latches and remove the internal microphone board and the rubber microph ...
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Apple 578 - page 89
Take Apart Internal Microphone - 54 Replacement Note: Be sure the rubber gasket is in place before replacing the microphone board. ...
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Apple 578 - page 90
Take Apart Front Bezel - 5 5 Front Bezel To remove the front bezel, remove the following: • Drive bezel • I/O door • CD-ROM drive • Floppy drive • Hard drive • Logic board • Rear housing • Analog board • Chassis harness assembly • CRT • Internal microphone Front Bezel ...
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Apple 578 - page 91
Take Apart Front Bezel - 5 6 ± W arning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. ± W arning: This product contains high voltage and a high-vacuum picture tube. Never use a grounding wriststrap until after discharging the CRT. Review CRT safety in Bulletin ...
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Apple 578 - page 92
Service Source K Upgrades Performa 500 Series ...
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Apple 578 - page 93
Upgrades Macintosh Processor Upgrade - 1 Macintosh Processor Upgrade Before you begin, remove the following: • I/O door • Logic board • Card in PDS slot (if any) Caution: Review the ESD precautions in Bulletins/ Safety. Note: The Macintosh Processor Upgrade kit allows 68LC040 computers to switch between a PowerPC 601 processor Macintosh Proce ...
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Apple 578 - page 94
Upgrades Macintosh Processor Upgrade - 2 and a 68LC040 processor. The upgrade board includes the PowerPC 601 processor on board and a socket to accept the customer’s 68LC040 processor. Note: The Macintosh Processor Upgrade for the Performa 520, 550, and 560 consists of a Macintosh LC 575 logic board, the Macintosh Processor Upgrade Card, a new re ...
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Apple 578 - page 95
Upgrades Macintosh Processor Upgrade - 3 follow the Macintosh LC 575 Macintosh Processor Upgrade procedures in this topic, substituting the 575 logic board, rear panel, and ID label for those installed on the Performa 550, or 560. Note: Refer to the Macintosh Processor Upgrade manual for information about specifications and troubleshooting. Note: T ...
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Apple 578 - page 96
Upgrades Macintosh Processor Upgrade - 4 Processor Upgrade board, 256K cache card, 040 heat sink, and hook-and-loop fasteners. If you need to order service replacement parts, order the parts separately. Note: To install the upgrade, you will need a processor removal tool. Order the removal tool as a separate service part. Note: The cache card comes ...
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Apple 578 - page 97
Upgrades Macintosh Processor Upgrade - 5 Installation Pr ocedure Over view There are four basic steps to installing the Macintosh Processor Upgrade. • Remove the 68LC040 processor from the customer’s logic board • Install the 68LC040 processor on the upgrade board • Install the upgrade board on the logic board • Reinstall the cache card o ...
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Apple 578 - page 98
Upgrades Macintosh Processor Upgrade - 6 Remov e the 68LC040 Pr ocessor from the Logic Board 1 Locate the 68LC040 processor on the logic board. 68LC040 Processor ...
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Apple 578 - page 99
Upgrades Macintosh Processor Upgrade - 7 2 Position the teeth of the processor removal tool in the groove between the processor and the logic board socket. Caution: Be sure to lift up on the handle of the processor removal tool. Pressing down could damage components on the logic board. Note: This graphic shows the proper way to remove a 68LC040 chi ...
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Apple 578 - page 100
Upgrades Macintosh Processor Upgrade - 8 3 Caution: Pry up each side of the processor only slightly to avoid bending the pins. Gently lift up the processor removal tool handle and pry up each side of the processor from the socket. 4 Remove the processor. ...
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Apple 578 - page 101
Upgrades Macintosh Processor Upgrade - 9 Install the 68LC040 Pr ocessor on the Upgrade Board Caution: Do not force the connector pins into the socket. Check pins to be sure none are bent. Note: The alignment corner of the 68LC040 processor is missing one pin. The alignment corner of the upgrade socket is missing a pin hole. Spacer 68LC040 Alignment ...
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Apple 578 - page 102
Upgrades Macintosh Processor Upgrade - 1 0 1 Position the 68LC040 connector alignment corner over the alignment corner of the upgrade board processor socket. 2 Carefully align the 68LC040 connector pins with the corresponding holes in the upgrade socket. ...
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Apple 578 - page 103
Upgrades Macintosh Processor Upgrade - 1 1 Caution: Forcing the 68LC040 processor connector pins into the socket could damage the pins. If the processor resists installation, check the pin alignment. Caution: Place the upgrade board on a firm even surface to avoid bending the upgrade board when pressing the processor into the socket. Caution: Use t ...
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Apple 578 - page 104
Upgrades Macintosh Processor Upgrade - 1 2 3 Hold the processor and spacer together and position the spacer alignment corner over the upgrade socket alignment corner. 4 Press the processor connector pins into the socket until you hear a snap. ...
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Apple 578 - page 105
Upgrades Macintosh Processor Upgrade - 1 3 Note: On a correctly i nstalled 040 processor, a very small gap separates the 040 chip from the metal spacer. A larger gap caused by the barrel sockets of the upgrade board separates the upgrade board and the spacer. Barrel Sockets 040 Processor Small Gap Spacer ...
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Apple 578 - page 106
Upgrades Macintosh Processor Upgrade - 1 4 Pr epare the Upgrade and Logic Boards f or Installation Note: The steps on this and the next page explain how to prepare the upgrade board to connect with the logic board. 1 Remove the 256K cache card from the upgrade board. Note: You will re- install the cache card after the upgrade board connects to the ...
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Apple 578 - page 107
Upgrades Macintosh Processor Upgrade - 1 5 Caution: The EMI clips on the bottom of the LC 575 and Performa 570 series logic boards flex easily. Do not apply heavy pressure directly to these clips or you may bend the logic board. 2 Place a piece of antistatic foam directly under the processor socket on the bottom side of the logic board. 3 Note: Thi ...
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Apple 578 - page 108
Upgrades Macintosh Processor Upgrade - 1 6 Peel the tape from the remaining sides of the two hook-and-loop fasteners. Afix the fastener in the position shown on the logic board. Hook-and-Loop Fastener ...
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Apple 578 - page 109
Upgrades Macintosh Processor Upgrade - 1 7 4 Note: This step makes room for the processor upgrade board. Move the battery from its original hook-and- loop fastener to the fastener on the chip behind the ADB ports. Battery Hook-and-Loop Fastener ...
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Apple 578 - page 110
Upgrades Macintosh Processor Upgrade - 1 8 Install the Upgrade Board Caution: Forcing the upgrade board connector pins into the logic board socket could damage the pins. If the connector resists installation, check the pin alignment. 1 Position the upgrade connector alignment corner over the logic board socket alignment corner. Upgrade Connector Al ...
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Apple 578 - page 111
Upgrades Macintosh Processor Upgrade - 1 9 2 Carefully align the pins along all sides of the processor and socket. 3 Firmly press the connector pins into the logic board socket. Note: After you install the upgrade board, connect the battery cable through the hole in the upgrade board and reinstall the cache card. 4 Drop the battery connector throug ...
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Apple 578 - page 112
Upgrades Macintosh Processor Upgrade - 2 0 5 Caution: The heat of the heat sink can melt the battery cable. Route the battery cable to avoid contact with the heat sink. Note: There are two sockets on the cache card. 6 Align the longer cache card socket with the longer row of pins on the upgrade board. 7 Firmly press the cache card onto the upgrade ...
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Apple 578 - page 113
Upgrades Macintosh Processor Upgrade - 2 1 Note: To install the software, refer to the Upgrade Owner’s Guide. ...
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Apple 578 - page 114
Upgrades Macintosh Processor Upgrade - 2 2 Logic Board and Upgrade Board Returns Return the upgrade and logic boards to their original conditions before sending them to Apple. Be sure to remove the upgrade board from the logic board and reinstall the 68LC040 processor on the logic board. Replacement Caution: To avoid bending any pins when removing ...
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Apple 578 - page 115
Service Source K Additional Procedures Performa 500 Series ...
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Apple 578 - page 116
Additional Procedures Battery Verification - 2 Battery Verification Before you begin, remove the following: • I/O door • Logic board ± W arning: If handled or discarded improperly, the lithium battery in the computer could explode. Review battery handling and disposal instructions in Bulletins/Safety. Battery ...
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Apple 578 - page 117
Additional Procedures Battery Verification - 3 Caution: Review the ESD precautions in Bulletins/ Safety. 1 Set the voltmeter to the 10 volts DC scale. 2 Hold the positive probe of the voltmeter to the positive end of the battery and the negative probe to the negative end of the battery. 3 If the battery voltage is below 3.0 volts, replace the batte ...
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Apple 578 - page 118
Additional Procedures Battery Replacement - 4 Battery Replacement Before you begin, remove the following: • I/O door • Logic board ± W arning: If handled or discarded improperly, the lithium battery in the computer could explode. Review battery handling and disposal instructions in Bulletins/Safety. Battery ...
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Apple 578 - page 119
Additional Procedures Battery Replacement - 5 Caution: Review the ESD precautions in Bulletins/ Safety. 1 Insert a small flat- blade screwdriver into the top of the battery holder cover and gently push down and out with the screwdriver to release the tab. 2 Repeat on the other end and remove the cover from the battery holder. Cover Battery Holder ...
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Apple 578 - page 120
Additional Procedures Battery Replacement - 6 3 Grasp the battery and remove it from the holder. 4 Return the battery to Apple for proper disposal. For information on battery packaging and labeling, refer to the instructions in Bulletins/Safety. ...
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Apple 578 - page 121
Service Source K Adjustments Performa 500 Series ...
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Apple 578 - page 122
Adjustments Geometry - 1 Geometry B efore you begin, remove the rear housing. ± W arning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. WARNING: High Voltage Areas Adjustment Controls ...
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Apple 578 - page 123
Adjustments Geometry - 2 Note: The controls on this monitor require a small hex-head plastic tool to make adjustments. If the tool is long, it will be too flexible, which will make fine adjustments difficult. Use a short hex-head plastic tool to minimize flexing. ± W arning: Do not use metal alignment tools—they are a shock hazard. ...
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Apple 578 - page 124
Adjustments Geometry - 3 V ertical Center 1 Use Display Service Utility to display the All-White Screen test pattern. 2 Using a hex-head plastic adjustment tool, adjust the vertical center (VS) control until the raster is centered (top to bottom) in the display area. All-White Screen ...
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Apple 578 - page 125
Adjustments Geometry - 4 Horizontal Center Using a hex-head plastic adjustment tool, adjust the horizontal center (HS) control until the raster is centered (side to side) in the display area. All-White Screen ...
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Apple 578 - page 126
Adjustments Geometry - 5 V ertical Size 1 Using a hex-head plastic adjustment tool, adjust the vertical height (VH) control until the raster height is 7 inches (± 1/8 inch) or 176 mm (± 2 mm). 2 Verify this height. If it is off, repeat the vertical size adjustment and, if necessary, the vertical center adjustment. All-White Screen ...
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Apple 578 - page 127
Adjustments Geometry - 6 Horizontal Size Note: Due to video features and timing differences across the Apple line of Macintosh computers, the width of the raster/image area on the Performa 550 screen may vary up to 3/16 inch at each side of the screen. Perform the horizontal size adjustment to set the display to its proper width. All-White Screen ...
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Apple 578 - page 128
Adjustments Geometry - 7 Using a hex-head plastic adjustment tool, adjust the horizontal width (HW) control until the raster is 9 1/4 inches (± 1/8 inch) or 235 mm (± 2 mm). ...
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Apple 578 - page 129
Adjustments Geometry - 8 F ocus 1 Use Display Service Utility to display the Focus test pattern. 2 Using a hex-head plastic adjustment tool, adjust the focus control until the Focus test pattern is as clear as possible. Focus WARNING: High Voltage Areas Focus ...
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Apple 578 - page 130
Adjustments Video - 9 Video Before you begin, remove the rear housing. ± W arning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. Note: Perform the cutoff adjustment prior to adjusting the white balance. WARNING: High Voltage Areas Adjustment Controls ...
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Apple 578 - page 131
Adjustments Video - 1 0 Replacement Note: Perform the cutoff adjustment whenever you replace the CRT or the analog board. ...
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Apple 578 - page 132
Adjustments Video - 1 1 Cutoff Note: Perform the cutoff and white balance adjustments after the monitor has been on for at least 10 minutes. 1 Use Display Service Utility to display the Gray Bars test pattern. 2 Press the Contrast Up button and set screen contrast to maximum. Gray Bars Contrast Up Button ...
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Apple 578 - page 133
Adjustments Video - 1 2 3 Select the Screen Control Panel in the Control Panels folder. Drag the brightness control to midrange. 4 U sing a hex-head plastic adjustment tool, set the red (RB), green (GB), and blue (BB) background controls to the full counterclockwise positions. ...
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Apple 578 - page 134
Adjustments Video - 1 3 5 Note: To set the green and blue drive controls to their 3/4 position, turn the controls to their full clockwise position and then turn back 1/4 turn counterclockwise. Set the green (GG) and blue (BG) drive controls clockwise to their 3/4 position. 6 Set the sub-contrast control (SC) to its full clockwise position. ...
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Apple 578 - page 135
Adjustments Video - 1 4 7 Using a hex-head plastic adjustment tool, adjust VG2 until the first bar in the test pattern is completely black and the second bar is barely visible. 8 Set the sub-contrast control (SC) to the center position. Gray Bars ...
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Apple 578 - page 136
Adjustments Video - 1 5 White Balance Note: Perform the cutoff and white balance adjustments after the monitor has been on for at least 10 minutes. 1 Use Display Service Utility to display the Gray Bars test pattern. 2 Press the Contrast Up button and set screen contrast to maximum. Gray Bars Contrast Up Button ...
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Apple 578 - page 137
Adjustments Video - 1 6 3 Select the Screen Control Panel in the Control Panels folder. Drag the brightness control to midrange. 4 Note the predominant color. 5 Using a hex-head plastic adjustment tool, alternately adjust the red (RB), green (GB), and blue (BB) background controls until there is no predominant color in the four darkest bars. Gray B ...
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Apple 578 - page 138
Adjustments Video - 1 7 Note: The darkest bar must remain completely black throughout the rest of the procedure. If you notice a predominant color in the darkest bar, readjust the appropriate background control. 6 If necessary, adjust the blue (BG) and green (GG) drive controls until there is no predominant color in the four brightest bars. Gray Ba ...
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Apple 578 - page 139
Adjustments Video - 1 8 7 Check the four darkest bars, and if necessary, adjust the red (RB), green (GB), and blue (BB) background controls until there is no predominant color. Gray Bars ...
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Apple 578 - page 140
Adjustments Video - 1 9 8 Use Display Service Utility to display the All-White Screen test pattern. 9 Using the light meter, adjust the sub-contrast control (SC) until the luminance measures 33 feet lamberts (± 3 foot lamberts), which on the light meter is • Model R77: 25 on the bottom scale • Model L-248: middle of the 10 scale • Model 246: ...
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Apple 578 - page 141
Adjustments Video - 2 0 Important: Over time, light tolerances can vary. If you doubt your meter’s accuracy, verify the readings with a known-good light meter or photometer. ...
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Apple 578 - page 142
Adjustments Light Meter Setup - 2 1 Light Meter Setup This topic covers setup for three light meter models: R77, L-248, and 246. Model R77 (Apple part number 076-0310) is the newest model available. Model R77 The R77 light meter is capable of reading luminance from 10 to 1,000 footcandles (fc). Before you begin, remove the 10X multiplier plate ...
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Apple 578 - page 143
Adjustments Light Meter Setup - 2 2 from the lens. Three scales are shown on the light meter: • 200-1000 fc • 50-250 fc • 10-50 fc Because display screen luminance typically ranges from 10 to 50 fc, take readings from the bottom scale only. ...
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Apple 578 - page 144
Adjustments Light Meter Setup - 2 3 To measure a display screen’s luminance, 1 Set the scale switch to the bottom position (to set up the 10-50 fc scale). 2 Place the lens against the middle of the screen and read the bottom scale. Note: When the light meter is not in use, slide the scale switch to its top position, and store the meter in its pro ...
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Apple 578 - page 145
Adjustments Light Meter Setup - 2 4 readings, verify the readings with a known-good light meter or photometer. Also check the age of the R77 light meter by its four-digit manufacturing date stamp (such as 0398 for March 1998). Caution: Dropping the meter can permanently damage its accuracy. A shock-damaged meter might read incorrectly or its pointe ...
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Apple 578 - page 146
Adjustments Light Meter Setup - 2 5 Model L-248 1 Press the red button on the back of the light meter. If the reading is out of the red area, replace the battery. 2 Move the side switch to its upper position so that the scale reads 10 through 18. 3 Uncover the lens of the meter. 4 Place the lens against the middle of the screen and press the read b ...
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Apple 578 - page 147
Adjustments Light Meter Setup - 2 6 Model 246 1 Remove the metal slide, if installed, from the top of the light meter. 2 Install the white lens with the red dot. 3 Rotate the swivel head so the lens of the meter faces the monitor. 4 Place the lens against the middle of the screen and read the scale. Lens Swivel Head Scale ...
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Apple 578 - page 148
Adjustments Convergence - 2 7 Convergence Before you begin, remove the rear housing. ± W arning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. WARNING: High Voltage Areas CRT Video Yoke Convergence Controls Board ...
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Apple 578 - page 149
Adjustments Convergence - 2 8 1 Use Display Service Utility to display the Crosshatch I test pattern. 2 Using a hex-head plastic adjustment tool, adjust the convergence control on the CRT video board for best overall convergence. Crosshatch I Convergence Control ...
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Apple 578 - page 150
Adjustments Convergence - 2 9 3 Using a hex-head plastic adjustment tool, adjust the N/S amp control for best convergence of horizontal lines at the top and bottom of the screen. 4 Adjust the lower correction control for best convergence of vertical lines at the bottom of the screen. 5 Adjust the upper correction control for best convergence of ver ...
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Apple 578 - page 151
Adjustments Geometric Distortion - 3 0 Geometric Distortion B efore you begin, remove the rear housing. ± W arning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. WARNING: High Voltage Areas Adjustment Controls ...
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Apple 578 - page 152
Adjustments Geometric Distortion - 31 1 Use Display Service Utility to display the Crosshatch I test pattern. 2 Verify that the boxes on the top row are the same size as the boxes on the bottom row, and the boxes on the left side are the same size as the boxes on the right side. Crosshatch I ...
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Apple 578 - page 153
Adjustments Geometric Distortion - 32 ± W arning: The entire yoke assembly has very high voltage. To prevent electrical shock, do not touch the yoke assembly, the anode wire, or the yoke wires. 3 To determine which control to adjust, compare the display with the distortions shown. 4 Using a hex-head plastic adjustment tool, adjust the control (see ...
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Apple 578 - page 154
Adjustments Geometric Distortion - 33 5 U sing a hex-head plastic adjustment tool, adjust the control that is appropriate for the distortion. 6 If the display is so distorted that you can’t tell which adjustments to make, perform the adjustments in the following sequence: • Pin Phase (KS) • Vertical Angle (PR) • Horizontal Bow (PB) ...
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Apple 578 - page 155
Adjustments Geometric Distortion - 3 4 7 If the display is still distorted, repeat the vertical angle and pin phase adjustments. 8 I f you can’t correct the distortion, replace the analog board. See “Analog Board” in the Take Apart chapter. Analog Board ...
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Apple 578 - page 156
Adjustments Yoke - 3 5 Yoke Before you begin, remove the rear housing. ± W arning: This product contains high voltage and a high-vacuum picture tube. To prevent serious injury, review CRT safety in Bulletins/Safety. Plastic Yoke Collar Yoke Clamp WARNING: High Voltage Areas Screw ...
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Apple 578 - page 157
Adjustments Yoke - 3 6 ± W arning: Because you must make yoke adjustments from the rear of the computer, use a mirror to view the computer screen. Do not reach around the computer to adjust collars and rings. Note: If you replace the CRT, you will probably need to adjust the yoke. 1 Using an insulated Philips screwdriver, loosen the yoke clamp scr ...
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Apple 578 - page 158
Adjustments Yoke - 3 7 2 Switch on the computer. 3 With one hand, grasp the plastic yoke collar and rotate it until the top and bottom edges of the picture are parallel with the top and bottom of the bezel.Switch off and unplug the computer. 4 Discharge the CRT. Plastic Yoke Collar ...
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Apple 578 - page 159
Adjustments Yoke - 3 8 5 Hold the plastic yoke collar in position and carefully tighten the yoke clamp screw so that the collar cannot slip. Do not overtighten the screw. 6 Replace the rear housing and switch on the computer. 7 Verify that the top and bottom edges of the picture are parallel with the top and bottom of the bezel. Yoke Clamp Screw Pl ...
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Apple 578 - page 160
Service Source K Exploded V ie w Performa 500 Series ...
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Apple 578 - page 161
Exploded View 1 Screw (4) Screw (4) Screw (4) Screw Screw (5) Hard Drive* Hard Drive Carrier 922-0621 Hard Drive Connector Adapter 922-1820 Rear Housing 922-1835 Fan 922-1803 Feet 865-0051 Internal Microphone Assembly 922-1802 Front Bezel 922-1834 922-0715 (P560) Drive Bezel 922-0558 Floppy Drive Shield (metal) Floppy Drive 661-0121 Floppy Drive Ca ...
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