Macintosh Performa Logic Board Schematic

Review the ESD precautions in Bulletins Safety. Note The Macintosh Processor Upgrade kit allows 68LC040 computers to switch between a PowerPC 601 processor 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 Refer to the Macintosh Processor Upgrade manual under the Power Macintosh menu for information about specifications and troubleshooting. (Use in LC and Perfor 500 Seriesl computers only.) Note...

IO Interfaces

Serial Two RS-232 422 serial ports mini DIN-8 connectors SCSI One external SCSI port DB-25 connector Supports up to six external SCSI devices Apple Desktop Bus One Apple Desktop Bus (ADB) port mini DIN-4 connector Video One DB-15 monitor port on built-in video daughterboard Sound Mono sound input port supports external microphone or Bias current for electret microphone Stereo sound output jacks at front and rear Processor-Direct Slot 630 Series One 114-pin internal expansion slot for LC...

Sound and Video

Sound 8-bit monophonic sound input 8-bit stereo sound output (16-bit in CD mode), level nominally 0.5 V RMS into 39 ohms Internal speaker muted when a plug is inserted into an output jack Video Supports all Apple 12-inch, 13-inch, and 14-inch monitors, Apple 15-inch multiple synchronous monitor, and VGA (640 x 480) monitors at maximum 16-bit per pixel Supports Apple 16-inch and SVGA (800 x 600) monitors at maximum 8-bit per pixel Line Voltage Frequency Maximum Power

Shield Wiring Harness

Before you begin, remove the following Review the ESD precautions in Bulletins Safety. 1 Push in and slide the plastic side panels toward the front of the computer about one-half inch. 2 Remove the plastic side panels. Note This graphic shows the bottom case tipped to provide a better view of the screw. Perform this procedure with the bottom case seated on a firm, flat surface. 3 Remove the screw that secures the shield wiring harness to the bottom case. 10-pin tuner cable, if connected 5 Slide...

Peripheral

Known-good LaserWriter does not print Make sure that Chooser and Control Panel settings are correct. Make sure System is version 7.1.2 (or later). Refer to Networks manual. Rattling sound at startup in system with Apple External Video Connector Press or fold Apple External Video cable to prevent it from contacting fan blades. Troubleshooting Symptom Charts Global Village Modem Busy Serial Port - 1 9 Global Village Modem Busy Serial Port Using modem gives message Can't find or can't access a...

Replacement Note If

You are replacing a defective floppy drive, invert the drive and carrier and remove the four carrier mounting screws. Separate the drive from the carrier. Before you begin, remove the following Review the ESD precautions in Bulletins Safety. Note To perform the next procedure, you may want to insert a screwdriver in the slot of the release latch to help you pull the CD-ROM drive. 1 Push up the release latch and pull the CD-ROM drive from the chassis. Note You may need to use some initial force...

System

Diagnose hard drive with Disk First Aid included on Power Perform repairs and then go to step 4. If repairs are impossible, back up drive, reformat with Drive Setup 1.0.3, and then go to step 4. Update driver using Drive Setup 1.0.3. Verify that front panel control buttons are not jammed. Reseat drive bezel and front panel control board. Crackling noise is present when you play sounds other than system beeps and you are not in play through mode If static noise varies when you adjust volume by...

Power Macintosh Logic Board Upgrade

Before you begin, remove the following Caution Use a grounded workbench and always wear a grounding wriststrap. This upgrade is not supported by DOS-Compatible systems. The Power Macintosh 5300 6300 Logic Board Upgrade is a finished goods product. The upgrade kit includes the 603e, 100 MHz logic board and logic board fence. See Take Apart chapter, Logic Board topic for installation procedures. Turn on Modern Memory Manager Restart the computer to verify the board works properly Replacement Note...

Memory

DRAM 630 Series 4 MB built in, 8 MB optional expandable to 36 MB if logic board has only one SIMM slot, part number 6610158 , or 52 MB if logic board has two SIMM slots one slot is a regular SIMM slot and the other is a single-sided SIMM slot, part number 661-1114 . LC 630 DOS-Compatible ships with 8 MB on main logic board 4 MB built in and 4 MB DRAM SIMM in one slot . Maximum addressable memory is 52 MB on the main logic board 4 MB built in, 32 MB SIMM in one slot and 16 MB SIMM the second...

Hard Drive

Before you begin, remove the following Review the ESD precautions in Bulletins Safety. Note The IDE hard drive interface is new to Apple products. LC 630 and Quadra 630 computers do not support internal SCSI hard drives. Refer to Basics for more information. 1 Using the pull tabs, disconnect the IDE data cable from the hard drive connector. Using a flat-blade screwdriver, push up the release latch and pull the IDE hard drive from the chassis.

Error Chords

Retain customer's SIMMs. 4 Perform SIMM verification on replacement logic board. 1 Disconnect hard drive power cable and reboot system. If startup sequence is normal, run Macintosh Hard Disk Test and replace hard drive if necessary. 2 Disconnect floppy drive cable and reboot system. If startup sequence is normal, replace floppy drive. 3 Replace logic board. Retain customer's SIMMs. Eight-tone error chord sounds during startup Four-tone error chord sounds during startup

Fan Video Card Bracket

Before you begin, remove the following Review the ESD precautions in Bulletins Safety. 1 Remove the two screws from the logic board metal fence. 10-pin tuner cable, if connected 3 Slide the tuner cable from the cable holder. 4 Disconnect the 2-pin fan cable.2-Pin Fan Cable Lift up one side of the fan video card bracket, then the other.

Top Cover

Before you begin, remove the following Review the ESD precautions in Bulletins Safety. Note The top cover consists of two parts that must be removed separately, a plastic cover on top of a metal shield. 1 Insert a small flat-blade screwdriver into the cutout and lift the front edge to clear the plastic stops. 2 With your other hand, slide the plastic cover forward about one-half inch. 3 Lift the plastic cover off the metal shield. 4 Remove the two Phillips screws. 5 Slide the metal shield...

Logic board

Apple Performa 630 Psu Grey Wires

Review the ESD precautions in Bulletins Safety. Note If you are replacing a logic board that has one SIMM slot, replace it with P N 661-01 58. If you are replacing a logic board that has two SIMM slots, replace it with P N 661-1114. Note The LC 630 DOS-Compatible logic board includes the main logic board with DRAM SIMM, the DOS-Compatible board with DRAM SIMM, DOS-Compatible sound board, DOS-Compatible adapter board, and appropriate cables. 1 Disconnect the 26-pin adapter board cable. 2 Gently...