Manuel d'utilisation / d'entretien du produit 575 du fabricant Apple
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Service Source K Performa 500 Series Macintosh Performa 550, Macintosh Performa 560, Macintosh Performa 575, Macintosh Performa 577, Macintosh Performa 578.
Service Source K Basics Performa 500 Series.
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.
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.
Service Source K Specifications Performa 500 Series.
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 Buil.
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.
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.
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 C.
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 pp.
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 .
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-leve.
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.
Specifications Electrical - 9 Electrical Line V oltage 100–240 VAC; Universal power supply Frequency 47–63 Hz, single phase Maximum Po wer 120 W.
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).
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.
Service Source K Troubleshooting Performa 500 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.
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.
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.
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.
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.
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.
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.
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.
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.
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).
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.
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.
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.
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.
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.
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.
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.
Service Source K T ake Apart Performa 500 Series.
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.
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.
Take Apart Rear Housing - 3 1 Using a Torx screwdriver, remove the five screws. 2 Lift off the rear housing. Rear Housing.
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.
Take Apart Fan - 5 Push out the two latches and remove the fan assembly. Fan Latch Latch.
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.
Take Apart Analog Board - 7 1 Disconnect the two ground cables from the degauss panels. Degauss Panel Ground Cable Ground Cable.
Take Apart Analog Board - 8 2 Disconnect the internal microphone connector. Internal WARNING: High Voltage Areas Microphone Connector.
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.
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.
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.
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.
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.
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.
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.
Take Apart Drive Bezel - 16 Using a flat-blade screwdriver, push up the latch. Pull down and remove the drive bezel. Latch Drive Bezel.
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.
Take Apart Floppy Drive - 18 1 Push down the latch and pull out the floppy drive. Floppy Drive Latch.
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.
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.
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.
Take Apart CD-ROM Drive - 22 1 Pull up the latch and pull out the CD-ROM drive. CD-ROM Latch Drive.
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.
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.
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.
Take Apart Hard Drive - 26 1 Push down the latch and remove the hard drive. Hard Drive Latch.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 h.
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.
Take Apart Internal Microphone - 54 Replacement Note: Be sure the rubber gasket is in place before replacing the microphone board..
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.
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.
Service Source K Upgrades Performa 500 Series.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Upgrades Macintosh Processor Upgrade - 2 1 Note: To install the software, refer to the Upgrade Owner’s Guide..
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.
Service Source K Additional Procedures Performa 500 Series.
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.
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.
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.
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.
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.
Service Source K Adjustments Performa 500 Series.
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.
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.
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.
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.
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.
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.
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).
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.
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.
Adjustments Video - 1 0 Replacement Note: Perform the cutoff adjustment whenever you replace the CRT or the analog board..
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.
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.
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.
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.
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.
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.
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.
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.
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 l.
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.
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).
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.
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).
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 whi.
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.
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.
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.
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.
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.
Service Source K Exploded V ie w Performa 500 Series.
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 Mi.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Apple 575 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Apple 575 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Apple 575, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Apple 575 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Apple 575, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Apple 575.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Apple 575. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Apple 575 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
