Manuale d’uso / di manutenzione del prodotto 4400/200 PC del fabbricante Apple
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Service Source K Po wer Macintosh 4400 Power Macintosh 4400/200 and 4400/200 PC Far East: Power Macintosh 7220/200 and 7220/200 PC Europe Only: Power Macintosh 4400/160.
Service Source K Basics Po wer Macintosh 4400.
Basics System Overview - 1 System Overview The Power Macintosh 4400 is an entry-level computer with a PowerPC 603e processor. The adapter card in the 4400/160 allows installing three PCI cards. In later models the adapter card allows installing one communications card and two PCI cards.
Basics Power Macintosh 4400/200, 7220/200 - 2 Power Macintosh 4400/200, 7220/200 The Power Macintosh 4400/200 will be sold worldwide. In the Far East, it will be named 7220/200.
Basics Voltage Switch - 3 Voltage Switch The voltage switch must be set correctly to avoid damaging the computer. Insert a screw driver in the slot to set the switch to show “115” for voltages between 100 and 130. Set the switch to show “230” for voltages between 200 and 230.
Basics Voltage Switch - 4 Here is a table listing voltages for some countries: Country V oltage Japan 1 0 0 South Korea 100 or 220 Jamaica, Taiwan 11 0 Peru 110 or 220 Brazil, Lebanon 110–220 Philip.
Basics Voltage Switch - 5 India, South Africa 220-250 Israel, Pakistan, Singapore 230 Australia, Kuwait, Malta, New Zealand, Northern Ireland, Papua New Guinea, Oman, Qatar, United Kingdom 240 Austria.
Basics Voltage Switch - 6 Caution: Setting the correct voltage for the computer does not set the voltage for the monitor. To protect the monitor, be sure to use the appropriate adapter or voltage converter, if one is necessary.
Basics Key Commands - 7 Key Commands Since there are no programmer’s switches on the Power Macintosh 4400, the reset and interrupt functions require pressing key combinations. There are two power buttons on the 4400, one on the keyboard and one on the front of the computer (see the Front View diagram later in this chapter).
Basics CD-ROM and Hard Drive Interface - 8 CD-ROM and Hard Drive Interface The internal hard drive uses intelligent device electronics (IDE) technology, commonly used in DOS-compatible systems. The IDE drive uses the standard advanced technology attachment (ATA) or IDE interface.
Basics Peripheral Component Interconnect (PCI) Technology - 9 Peripheral Component Interconnect (PCI) Technology The Power Macintosh 4400 offers peripheral component interconnect (PCI) expansion. Because the PCI bus is an industry standard, most existing PCI 2.
Basics Peripheral Component Interconnect (PCI) Technology - 1 0 Note: The Power Macintosh PCI adapter card expansion slots are compatible with all PCI 2.0 specification-compliant cards with the addition of a Macintosh-OS-specific software driver. Nubus cards cannot be used in these expansion slots.
Basics Dual In-Line Memory Modules (DIMMs) - 11 Dual In-Line Memory Modules (DIMMs) The Power Macintosh 4400 uses DRAM on dual in-line memory modules (DIMMs). Three slots allow for memory expansion up to 96 MB using 3.3 V unbuffered 8-byte extended data output (EDO) JEDEC-standard 168-pin DRAM DIMM cards.
Basics Dual In-Line Memory Modules (DIMMs) - 12 computers, use only the shortest of the three (1.100 inches). Taller DIMMs put excessive pressure on the DIMM sockets due to mechanical pressure inside the case. The DIMMs can be installed one or more at a time.
Basics Video RAM - 1 3 Video RAM The logic board has a 120-pin video DIMM connector that allows the use of EDO RAM. The video controller supports the following for video memory: • 1 or 2 MB of EDO R.
Basics GeoPort Technology - 1 4 GeoPort Technology Geoport is a hardware and software communications architecture that has been optimized for computer- telephony integration. It has three main attributes: • It lets any GeoPort-compatible computer connect to any telephone (analog or digital, public or private) anywhere in the world.
Basics Front View - 15 Front View Mouse Keyboard CD-ROM Drive Monitor Hard Drive Speaker Floppy Drive Computer CD-ROM Drive Open/Close Button Power Key Power Button.
Basics Rear View - 16 Rear View Monitor Port SCSI Port Sound Output Port Apple Desktop Bus (ADB) Port Sound Input Port Power Socket External Modem Port Printer Port Expansion Slots (3) Access Covers V.
Basics Logic Board - 1 7 Logic Board 3 DRAM Slots Power Supply Sockets PCI Adapter Slot Processor with Heat Sink L2 Cache Slot ROM Video DIMM Slot Battery.
Service Source K Specifications Po wer Macintosh 4400.
Specifications Processor - 1 Processor CPU PM 4400/160 PowerPC 603e processor 160 MHz Built-in floating point unit (FPU) PM 4400/200, PM 7220/200 PowerPC 603e processor 200 MHz Built-in floating point.
Specifications Processor - 2 Processor Bus 64-bit ROM data bus width 40 MHz system bus.
Specifications Memory - 3 Memory DRAM 4400/160 16 MB DRAM (no RAM soldered on board) Expandable to 96 MB in three slots using dual in-line memory modules (DIMMs) that are 64-bit wide, 168-pin unbuffered 3.3 V EDO, with 60 ns RAM access time or faster.
Specifications Memory - 4 V ideo RAM 1 MB video EDO RAM DIMM Expandable to 4 MB with SGRAM DIMM EDO DIMM 1 or 2 MB SGRAM DIMM 1, 2, or 4 MB RO M 4 MB of read-only memory PRAM 8K of nonvolatile paramet.
Specifications Disk Storage - 5 Disk Storage Floppy Drive 1.4 MB Apple SuperDrive Accepts high-density 1.4 MB disks and 800K disks Reads, writes, and formats Macintosh, Windows, MS-DOS, OS/2, and ProDOS disks CD-R OM Drive Advanced Technology Adapter Peripheral Interface (ATAPI) CD-ROM (8X-speed) Hard Drive 4400/160 1.
Specifications I/O Interfaces - 6 I/O Interfaces A pple Desktop Bus One Apple Desktop Bus (ADB) port supporting up to three ADB input devices daisy-chained through a synchronous serial bus K eyboard S.
Specifications I/O Interfaces - 7 PCI Expansion 4400/160 Three industry-standard PCI expansion slots (45 watts combined power allowance for all three slots). Install only expansion cards that come with Macintosh drivers and are compliant with the PCI 2.
Specifications I/O Interfaces - 8 V ideo-out Monitor port (15-pin SVGA compatible) supporting color and grayscale monitors of various sizes and resolutions. Depending on the amount of video RAM installed, the built-in video supports up to 800 x 600 pixel resolution at 16 bits per pixel and up to 1152 x 870 at 8 bits per pixel.
Specifications I/O Interfaces - 9 Sound 16-bit stereo audio input and output—stereo in, stereo record, stereo out. Up to 44.1 KHz sampling rate. Sound Output One 3.5-mm sound output port for line-level devices such as powered loudspeakers. Sound Input One 3.
Specifications I/O Interfaces - 10 SCSI One external standard SCSI port that supports up to seven external SCSI devices Important: Some older SCSI devices or SCSI devices not manufactured by Apple may require updated drivers. Contact the device manufacturer for information on obtaining driver software.
Specifications Electrical - 11 Electrical Line V oltage 90–270 VAC Switchable 110/220 VAC, RMS single phase Frequency 47–63 Hz Single phase Po wer 200 W maximum, not including display Energy Star .
Specifications Physical - 12 Physical Dimensions Height: 5.43" (139 mm) Width: 15.12" (385 mm) Depth: 17.37" (442 mm) W eight 24 lb. (9.
Specifications Environmental - 13 En vironmental T emperature Operating: 50°–104° F (10°–40° C) Storage: -40° to 116.6° F (-40° to 47° C) Transient: -40° to 149° F (-40° to 65° C) Humidity Noncondensing, 20–95% Altitude 0–10,000 ft.
Service Source K Troubleshooting Power Macintosh 4400.
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/ System - 2 Symptom Charts System System intermittently crashes or hangs 1 Verify that system software is version 7.5.3 or later. 2 Verify that software is known-good. 3 Verify that software is PowerPC-compatible (contact developer).
Troubleshooting Symptom Charts/ System - 3 System System does not start up 1 Reset logic board. Refer to Additional Procedures. 2 Replace power supply. 3 Replace logic board. Retain customer’s DIMMs. System does not start up from keyboard, but starts up from power switch 1 Check keyboard connection.
Troubleshooting Symptom Charts/ System - 4 System Front power switch LED does not light up 1 Check LED connection to logic board. 2 Check polarity of LED connector on logic board. Triangle should be over pin 1. 3 Check cable for cuts (especially under CD-ROM drive).
Troubleshooting Symptom Charts/ Audio - 5 Audio Distorted or garbled sound 1 Check volume level. 2 Check volume level in Monitor and Sound control panel. 3 Check speaker for damage. No sound output from speaker 1 Check speaker connection to logic board.
Troubleshooting Symptom Charts/ Video - 6 Video No video, fan is running 1 Check monitor connection. 2 Try known-good monitor. 3 Remove all DRAM DIMMs and try replacing them one at a time to test. Replace any bad DIMMs. 4 Replace logic board. Retain customer’s DIMMs.
Troubleshooting Symptom Charts/ Floppy Drive - 7 Floppy Drive Audio and video are present, but internal floppy drive does not operate 1 Replace bad disk with known-good disk. 2 Make sure cable is connected to logic board. 3 Replace floppy drive. 4 Replace cable connecting to the logic board.
Troubleshooting Symptom Charts/ Floppy Drive - 8 Floppy Drive Disk does not eject 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.
Troubleshooting Symptom Charts/ Hard Drive - 9 Hard Drive Internal or external hard drive does not spin up 1 Verify that all hard drive connections are secure. 2 Reseat logic board. 3 Replace internal IDE hard drive. 4 Replace logic board. Retain customer’s DIMMs.
Troubleshooting Symptom Charts/ Hard Drive - 10 Hard Drive Hard drive not recognized 1 Make sure CD-ROM interface cable is connected. Note: This IDE bus termination issue only affects early European Power Macintosh 4400 systems. 2 Make sure hard drive cables are securely connected.
Troubleshooting Symptom Charts/ CD-ROM Drive - 11 CD-ROM Drive CD-ROM drive does not accept disc 1 If compact disc is dirty or damaged, use known-good compact disc. 2 Replace CD-ROM drive. Volume control does not operate correctly when playing audio CD, but does work when playing system sounds Check Monitor and Sound control panel setting.
Troubleshooting Symptom Charts/ Peripheral - 1 2 Peripheral Cursor does not move 1 Restart system. 2 Check mouse connection. 3 If mouse was connected to keyboard, connect mouse to rear ADB port and disconnect keyboard. If mouse works, replace keyboard.
Troubleshooting Symptom Charts/ Peripheral - 1 3 Peripheral Cannot double-click mouse to open application, disk, or server 1 Check mouse speed on Mouse control panel. 2 Unplug battery from logic board, wait 20 seconds, plug in battery, and restart computer.
Troubleshooting Symptom Charts/ Peripheral - 1 4 Peripheral Known-good StyleWriter does not print 1 Verify that Chooser is set correctly. 2 Verify that printer driver and system software are not corrupt. 3 Verify system software is version 7.5.3 or later.
Troubleshooting Symptom Charts/ Miscellaneous - 1 5 Miscellaneous No audio, and no drive operation 1 Connect power cable. 2 Switch power on. 3 Replace power cable. 4 Replace logic board. Retain customer’s DIMMs. “Sad Macintosh” icon 1 Start up from known-good disk.
Troubleshooting Symptom Charts/ Miscellaneous - 1 6 Miscellaneous Screen shows “Sad Macintosh” icon and black vertical lines; screeching sound 1 Replace DIMMs. 2 Replace logic board. Retain customer’s DIMMs. Headphone jack does not operate correctly Verify that headphone jack is seated properly.
Service Source K T ake Apart Po wer Macintosh 4400.
Take Apart Top Housing - 1 Top Housing No preliminary steps are required before you begin this procedure. Caution: Review the ESD precautions in Bulletins/ Safety.
Take Apart Top Housing - 2 1 Remove the screws that secure the housing to the rear of the chassis..
Take Apart Top Housing - 3 2 Firmly grasp both sides of the top housing at the back of the unit. Wrap your fingers around to the back of the unit. Push on the rear chassis to slide the housing back about 10 mm. 3 Lift the top housing and remove it from the computer.
Take Apart Top Housing - 4 panel. Slide the top housing forward until it fits into place. If the lid doesn’t fit properly, check the link bar to be sure it is installed correctly. Also, if the floppy/CD-ROM drive carrier was removed, make sure the carrier hooks correctly into the bottom of the chassis.
Take Apart Link Bar - 5 Link Bar Before you begin, remove the top housing. Caution: Review the ESD precautions in Bulletins/ Safety..
Take Apart Link Bar - 6 1 Detach the pegs of the link bar from the slots in the rear of the computer..
Take Apart Link Bar - 7 2 Slide the link bar back about half an inch and lift the link bar out..
Take Apart Link Bar - 8 Replacement Note: To replace the link bar, position the bar so that it firmly holds the PCI adapter board and disk drive carriers. Slide the link bar toward the front panel until it fits into place. The three hooks at the bottom of the link bar must catch the floppy/CD-ROM drive carrier.
Take Apart Link Bar - 9 lock the pegs into the slots in the rear of the chassis..
Take Apart Front Bezel - 10 Front Bezel Before you begin, remove the following: • Top housing • Link bar Caution: Review the ESD precautions in Bulletins/ Safety.
Take Apart Front Bezel - 11 1 Press the three front bezel release tabs inside the chassis. 2 Remove the bezel from the chassis..
Take Apart Front Bezel - 12 Replacement Note: Insert the three tabs at the front base of the chassis. Snap the release tabs into place..
Take Apart Cache Card - 13 Cache Card Before you begin, remove the top housing. Note: Do not touch the connectors. Handle only by the edges..
Take Apart PCI Adapter Card - 14 PCI Adapter Card Before you begin, remove the following: • Top housing • Link bar Caution: Review the ESD precautions in Bulletins/ Safety. Press the connector down while pulling up on the PCI adapter card to remove it from the logic board slot.
Take Apart Hard Drive Carrier - 15 Hard Drive Carrier Before you begin, remove the top housing. Caution: Review the ESD precautions in Bulletins/ Safety.
Take Apart Hard Drive Carrier - 16 1 Lift up the hard drive carrier to detach it from the hooks on the floppy/ CD-ROM drive carrier..
Take Apart Hard Drive Carrier - 17 2 Disconnect the power and data cables attached to the hard drive..
Take Apart Hard Drive Carrier - 18 Caution: Cables can catch on the exposed hooks and become damaged. Replacement Note: Place the hard drive carrier on the hooks that attach it to the floppy/CD-ROM drive carrier.
Take Apart Hard Drive - 19 Hard Drive Before you begin, remove the following: • Top housing • Hard drive carrier Caution: Review the ESD precautions in Bulletins/ Safety.
Take Apart Hard Drive - 20 1 Remove the four screws that secure the hard drive to the hard drive carrier. 2 Remove the hard drive from the carrier. Replacement Note: Position the hard drive on the hard drive carrier. Replace the four screws to secure the hard drive to the carrier.
Take Apart Floppy/CD-ROM Drive Carrier - 21 Floppy/CD-ROM Drive Carrier Before you begin, remove the following: • Top housing • Link bar • Front bezel • Hard drive carrier • PCI adapter card Caution: Review the ESD precautions in Bulletins/ Safety.
Take Apart Floppy/CD-ROM Drive Carrier - 22 1 Note: Press the plastic release tab on the audio tab to remove it. Disconnect the audio, data, and power cables from the CD-ROM drive.
Take Apart Floppy/CD-ROM Drive Carrier - 23 2 Disconnect the data cable from the floppy drive. 3 Pull the floppy/CD-ROM drive carrier about 1 cm away from the front panel and toward the CD-ROM drive to avoid catching the metal hook under the logic board.
Take Apart Floppy/CD-ROM Drive Carrier - 24 4 Lift the carrier out of the computer..
Take Apart Floppy/CD-ROM Drive Carrier - 25 Replacement Note: Be sure the power button and LED wires are firmly held under the clips and clear of the floppy/CD-ROM carrier path. These wires are easily cut when the drive carrier slides across them. Also pull the power supply wires out of the way.
Take Apart Floppy/CD-ROM Drive Carrier - 26 place. Look at the front of the chassis to be sure the bottom edge of the CD-ROM drive carrier isn’t caught under the metal lip of the chassis CD-ROM drive opening. Be sure the drive carrier metal tab at the bottom left of the floppy drive is all the way through the slot in the chassis front opening.
Take Apart CD-ROM Drive - 27 CD-ROM Drive Before you begin, remove the following: • Top housing • Link bar • PCI adapter card • Front bezel • Hard drive carrier • Floppy/CD-ROM drive carrier Caution: Review the ESD precautions in Bulletins/ Safety.
Take Apart CD-ROM Drive - 28 1 Note: A long-neck Phillips screw driver will make it easier to remove the CD-ROM screws under the floppy carrier. Remove the four screws that secure the CD-ROM drive to the floppy/CD- ROM drive carrier. 2 Remove the CD-ROM drive from the carrier.
Take Apart CD-ROM Drive - 29 Replacement Note: Position the CD-ROM drive on the drive bay. Replace the screws on both sides of the CD-ROM drive to secure it to the carrier. Replace the drive carrier in the computer, aligning the carrier with the tabs at the base of the housing.
Take Apart Floppy Drive - 30 Floppy Drive Before you begin, remove the following: • Top housing • Link bar • Front bezel • PCI adapter card • Hard drive carrier • Floppy/CD-ROM drive carrier Caution: Review the ESD precautions in Bulletins/ Safety.
Take Apart Floppy Drive - 31 1 Remove the four screws under the floppy drive bay that secure the Apple SuperDrive to the floppy/CD-ROM drive carrier. 2 Remove the Apple SuperDrive from the carrier. Replacement Note: Position the floppy drive on the bay of the carrier.
Take Apart Floppy Drive - 32 base of the housing. Fasten the hard drive carrier on the hooks on the side of the floppy/CD-ROM drive carrier. Connect the floppy drive cables.
Take Apart Logic Board - 33 Logic Board Before you begin, remove the following: • Top housing • Link bar • Front bezel • PCI adapter card • Hard drive carrier • Floppy/CD-ROM drive carrier Caution: Review the ESD precautions in Bulletins/ Safety.
Take Apart Logic Board - 34 1 Note: Press the release tab of the soft-power connector to remove it. Grasp the plastic connector (not the wires) when removing the CD audio cable. Disconnect all cables from the logic board. Refer to the logic board diagram at the end of this section.
Take Apart Logic Board - 35 2 Press the release tab near the front panel to release the logic board..
Take Apart Logic Board - 36 3 Raise up the front of the logic board and pull the external ports out of the access holes in the rear of the chassis. Guide the logic board away from the power supply.
Take Apart Logic Board - 37 holes in the back of the chassis. Lower the front of the logic board so that the pegs in the housing base fit into the logic board holes. Press the front edge of the logic board down until the release tab clicks. Connect all cables to the proper sockets on the logic board.
Take Apart Logic Board - 38 board..
Take Apart Logic Board - 39 Power Supply Soft Power SCSI Power Supply PCI Adapter Slot Speaker LED Fan Cable Connection Slots Front Bezel Power Switch IDE Hard Drive CD-ROM Audio IDE ATAPI CD-ROM Driv.
Take Apart Power Supply - 40 Power Supply Before you begin, remove the following: • Top housing • Link bar • Hard drive carrier Caution: Review the ESD precautions in Bulletins/ Safety.
Take Apart Power Supply - 41 1 Note: Press the release tab of the soft-power connector to remove it..
Take Apart Power Supply - 42 Disconnect the five power supply cables from the logic board sockets..
Take Apart Power Supply - 43 2 Disconnect the power supply connectors from the hard drive and CD- ROM drive..
Take Apart Power Supply - 44 3 Remove the 4 screws that secure the power supply to the rear of the chassis..
Take Apart Power Supply - 45 4 Push the power supply about one cm from the rear of the chassis and lift it out of the computer. Replacement Caution: The power supply cable connectors that attach to the logic board are keyed with matching notches.
Take Apart SCSI Cable - 46 SCSI Cable Before you begin, remove the following: • Top housing • Link bar • PCI adapter card Caution: Review the ESD precautions in Bulletins/ Safety.
Take Apart SCSI Cable - 47 1 Remove the two hex nuts that secure the SCSI cable to the rear of the chassis..
Take Apart SCSI Cable - 48 2 Disconnect the SCSI cable from the logic board. 3 Remove the SCSI cable from inside the chassis..
Service Source K Upgrades Po wer Macintosh 4400.
Upgrades DRAM DIMM - 1 DRAM DIMM Before you begin, remove the following: • Top housing • Link bar • PCI adapter card Caution: Review the ESD precautions in Bulletins/ Safety. Note: The DRAM sockets are located behind the PCI adapter card that supports the PCI cards in the computer.
Upgrades DRAM DIMM - 2 1 Push the ejector on the DRAM slot outward and down to open it. 2 Note: Do not touch the DIMM connectors. Handle the DIMM only by the edges. With the ejector in the open position, align the DRAM DIMM notches with the small ribs inside the socket.
Upgrades Video RAM DIMM - 3 Video RAM DIMM Before you begin, remove the top housing. Caution: Review the ESD precautions in Bulletins/ Safety. Video RAM DIMM.
Upgrades Video RAM DIMM - 4 1 Note: Do not touch the video RAM DIMM connectors. Handle only by the edges. Align the notches in the video RAM DIMM with the small ribs inside the module slot, and insert the module into the slot. 2 Push down on the DIMM until it snaps into place.
Upgrades Cache Card - 5 Cache Card Before you begin, remove the top housing. Caution: Review the ESD precautions in Bulletins/ Safety. Cache Card Slot.
Upgrades Cache Card - 6 Note: The cache card is designed to fit into the slot only one way. Note: Do not touch the connectors. Handle only by the edges. Align the notches in the cache card with the small ribs inside the card slot, and insert the card into the slot.
Upgrades PCI Card - 7 PCI Card Before you begin, remove the top housing. Caution: Review the ESD precautions in Bulletins/ Safety. Note: A 6.88-inch card fits in all three slots of a Power Macintosh 4400/160. A 6.88-inch card fits in the top two slots of the Power Macintosh 4400/200 and 7220/200.
Upgrades PCI Card - 8 1 If the PCI card has ports for connecting equipment, remove the port access cover. Port Cover.
Upgrades PCI Card - 9 2 To install a PCI card in the bottom slot of the Power Macintosh 4400/ 160, you must temporarily remove the video RAM DIMM. Press down on the video RAM DIMM slot while pulling up on the video RAM DIMM.
Upgrades PCI Card - 10 3 Remove the PCI card from the static-proof bag, holding it by the edges to avoid touching any connectors. Connectors.
Upgrades PCI Card - 11 4 Insert the PCI card into the PCI slot, aligning any ports on the card with the port access opening. Press the card firmly into the slot.
Upgrades PCI Card - 12 5 Reinstall the screw removed from the port access cover. 6 If you removed the video RAM DIMM, reinstall it. Screw.
Upgrades Communications Card - 1 3 Communications Card Before you begin, remove the top housing. Caution: Review the ESD precautions in Bulletins/ Safety. Note: A communications card can only be installed in the bottom slot of the adapter card in a Power Macintosh 4400/200 or 7220/200.
Upgrades Communications Card - 1 4 wants both Ethernet and internal modem cards, install an Ethernet PCI card in one of the upper slots and install the modem card in the lower communications slot.
Upgrades Communications Card - 1 5 1 Note: You may need to temporarily remove the video RAM DIMM. To remove the video RAM DIMM, press down on the video RAM DIMM slot while pulling up on the video RAM DIMM. 2 Remove the communications card from its static-proof bag, and hold the card by its edges to avoid touching the connectors.
Upgrades Communications Card - 1 6 3 If the card has a hook, be sure it engages the hole in the access cover. Communications Card Slot Communications Card Communications Card Access Cover Communicatio.
Upgrades Communications Card - 1 7 4 If the card doesn’t have a hook, pass the external connector through the opening in the access cover. 5 Insert the card into the communications slot. If it meets resistance, pull the card out and reinsert the connector.
Upgrades Communications Card - 1 8 7 If you removed the video RAM DIMM, replace it following the steps in the “Video RAM DIMM” section of this chapter. Note: Communications software may need to be installed for the card to work. Also, for an Ethernet card, the network connection in the AppleTalk control panel may need to be changed.
Upgrades P C Compatibility Cards - 1 9 PC Compatibility Cards For information about these cards and installation instructions, refer to the PC Compatiblity Card manual on this Service Source CD.
Service Source K Additional Procedures Po wer Macintosh 4400.
Additional Procedures Battery Verification - 1 Battery Verification Before you begin, remove the following: • Top housing • Link bar • Hard drive carrier • Floppy/CD-ROM drive carrier Caution: Review the ESD precautions in Bulletins/ Safety.
Additional Procedures Battery Verification - 2 1 Disconnect the battery connector. 2 Set the voltmeter to the 10 volts DC scale. 3 Hold the positive probe of the voltmeter to the positive end of the battery connector and the negative probe to the negative end of the battery connector.
Additional Procedures Battery Replacement - 3 Battery Replacement Before you begin, remove the following: • Top housing • Link bar • Hard drive carrier • Floppy/CD-ROM drive carrier Note: Battery location is different in 4400 computers sold in Germany.
Additional Procedures Battery Replacement - 4 Caution: Review the ESD precautions in Bulletins/ Safety. 1 Pull up and disconnect the conne ctor. 2 Pull up and remove the battery from its hook- and-loop base.
Additional Procedures Logic Board Reset - 5 Logic Board Reset Before you begin, remove the following: • Top housing • Link bar • Hard drive carrier • Floppy/CD-ROM drive carrier Caution: Review the ESD precautions in Bulletins/ Safety.
Additional Procedures Logic Board Reset - 6 1 Pull up and disconnect the battery connector. 2 Pull up and remove the battery from its hook- and-loop base. 3 Wait 5-10 minutes and then replace the battery. Note: This procedure resets PRAM. Be sure to check the computer’s time/date and other system parameter settings following the procedure.
Additional Procedures Logic Board Reset - 7 Note: If this procedure resolves the problem, claim an adjustment on an SRO. If not, replace any defective parts and do not claim the adjustment.
Additional Procedures Battery Replacement for 4400s Sold in Germany - 8 Battery Replacement for 4400s Sold in Germany Before you begin, remove the following: • Top housing • Link bar • Cache card 1 Using needle-nose pliers, pull up and disconnect the battery connector.
Additional Procedures Battery Replacement for 4400s Sold in Germany - 9 2 Pull up and twist to remove the battery from its hook-and-loop base. 3 Install the new battery and attach the battery connector.
Additional Procedures Battery Replacement for 4400s Sold in Germany - 1 0 4 Press the reset switch on the logic board using a flat plastic tool..
Service Source K Exploded V ie w Po wer Macintosh 4400.
Exploded View 1 Power Supply 661-1248 PCI Adapter Card 160 MHz: 922-2656 200 MHz: 922-2725 Logic Board 160 MHz 661-1291 200 MHz 661-1408 SCSI Connector 922-2658 Chassis Fan Speaker Floppy Drive/ CD-RO.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Apple 4400/200 PC è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Apple 4400/200 PC - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Apple 4400/200 PC imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Apple 4400/200 PC ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Apple 4400/200 PC, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Apple 4400/200 PC.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Apple 4400/200 PC. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Apple 4400/200 PC insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
