IO Interfaces

SCSI One SCSI port DB-25 connector Supports a maximum of six external devices (internal SCSI devices include the computer, which is always device 7) Apple Desktop Bus Two Apple Desktop Bus (ADB) ports mini DIN-4 connectors Low-speed synchronous serial interface Two RS-232 RS-422 serial ports mini DIN-8 connectors 230.4 Kbps maximum 0.92 Mbps maximum, clocked externally Serial Internal expansion slot supports either a processor-direct slot card or 7-inch NuBus card (with appropriate adapter) One...

CDROM Drive Upgrade

Before you begin, remove the top cover. Caution Review the ESD precautions in Bulletins Safety. 1 Remove the blank CD-ROM drive bezel from the top cover. 2 Install the slotted CD-ROM drive bezel in the top cover. 4 Attach the CD-ROM drive CD-ROM Drive Carrier carrier to the CD-ROM 5 Push in the CD-ROM drive and carrier. 6 Align the slots at the lower edge of the CD-ROM shield with the tabs on the bottom cover. 7 Swing up the CD-ROM shield until it snaps securely onto the bottom cover. Connect...

Battery Verification

Awarning If handled or discarded improperly, the lithium battery in the computer could explode. Review battery-handling and disposal instructions in Bulletins Safety. 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 on the logic board) and the negative probe to the negative end of the battery. 3 If the battery voltage is below 3.2 volts, replace the battery. Refer to Battery Replacement in...

Battery Replacement

Awarning If handled or discarded improperly, the lithium battery in the computer could explode. Review battery-handling and disposal instructions in Bulletins Safety. Caution Review the ESD precautions in Bulletins Safety. Using a small flat-blade screwdriver, pry open the latch at the end of the battery holder and lift off the cover. 2 Grasp the battery and remove it from the holder. 3 Return the battery to Apple for proper disposal. For battery packaging and labeling instructions, refer to...

Expansion Cards

Caution Review the ESD precautions in Bulletins Safety. 1 Remove the expansion port cover from the back panel. 2 Loosely connect the expansion card connector to the adapter card connector. Note Be sure to fit the adapter card pin into the expansion card hole. 3 Gently press the connectors together. Adapter Card Pin Expansion Card Hole 4 Insert the connector on the bottom of the adapter card into the expansion slot. Note Make sure that the tab on the side of the adapter card slides into the slot...

CPU Replacement

Pga Processor Removal Tool

Before you begin, remove the following Top cover j ' ' ' ' ' ' ' O C P wer supply j Expansion card Caution Review the ESD precautions in Bulletins I ji Safety. Position the teeth of the PGA processor chip removal tool in the groove between the chip and the socket. Caution Be sure to lift up on the handle of the chip removal tool. Pressing down could damage components on the board. Gently lift up the handle to loosen each side of the processor chip from the socket. Position the marked corner of...

Apple Macintosh Centris 610

Quadra 610

Before you begin, remove the following Caution To prevent ESD damage to components, wear a grounding wriststrap. Review the ESD precautions in Bulletins Safety. Note The Centris 610AV Upgrade Kit for the Centris 61 0 includes a Centris 61 OAV Logic Board, product labels, and 1 0 panel. Note The Centris 610 logic board is secured with two screws. 1 Using a long Phillips screwdriver, remove the screw from the center of the standoff. 3 Remove the Phillips screw from the front edge of the Centris...

Hard Drive

Before you begin remove the top cover. Caution Review the ESD precautions in Bulletins Safety. Disconnect the SCSI data and hard drive power cables from the hard drive. 3 Press down on the tab and slide out the hard drive. Before you begin, remove the top cover. Caution Review the ESD precautions in Bulletins Safety. 1 Disconnect the SCSI data cable and CD-ROM drive power cable from the CD-ROM drive. 2 Disconnect the CD-ROM audio cable. 4 Press up on the tab and slide out the CD-ROM drive. sure...

Symptom Charts Video

Screen is dark, audio and at least one drive operate, fan is running, and LED is lit 2 Adjust brightness on monitor. 4 Replace monitor. Refer to appropriate monitor manual to troubleshoot defective monitor. 7 Replace logic board. Retain customer's SIMMs. Partial or whole screen is bright and audio is present, but no video information is visible 3 Replace monitor. Refer to appropriate monitor manual to troubleshoot defective monitor. 6 Replace logic board. Retain customer's SIMMs. Verify that...

Power Supply

Before you begin, remove the top cover. Caution Review the ESD precautions in Bulletins Safety. 1 Remove the screw that secures the power supply. For easier access to the power supply, release the tabs of the floppy drive and slide the floppy drive forward a few inches. Note If a CD-ROM drive is present, remove the SCSI data cable and move the CD-ROM drive forward. Refer to the CD-ROM Drive topic. Disconnect these power supply cables CD-ROM drive power cable if installed 4 Slide the power...

Internal Chassis

Before you begin, remove the following CD-ROM drive if installed Caution Review the ESD precautions in Bulletins Safety. Note The chassis is secured to the bottom cover by two tabs at the front of the unit, two rail and tab sets at the sides of the unit, support posts at the back of the chassis, and hidden brackets that slide into the bottom cover. 1 Press up on one of the front tabs while lifting the support post. 2 Repeat this step on the other side until the internal chassis slides easily...