Apple Manual for macintosh portable (pdf document) download at fliiby.com

"K Service Source Macintosh Portable K Service Source Basics Macintosh Portable Basics Overview - 1 Overview This manual contains complete repair procedures for the Macintosh Portable shown at left. Figure: Macintosh Portable K Service Source Speciﬁcations Macintosh Portable Specifications Processor - 1 Processor CPU Motorola 68HC000, 16-bit CMOS microprocessor 15.6672 MHz 32-bit internal registers 24-bit address bus 16-bit data bus 1 (static logic board) 10 (pseudostatic logic board) Addressing Wait States Specifications Memory - 2 Memory RAM 1 MB using thirty-two 32K by 8-bit static RAM chips; 100 ns access time; addressing supports up to 9 MB Expandable to 2 MB with optional 1 MB RAM expansion card Expandable to 4 MB with optional 3 MB RAM expansion card (backlit model) 256K using two 128K by 8-bit devices; 150 ns access time; addressing supports up to 4 MB 128 bytes of system parameter memory 32K of static video display memory ROM PRAM VRAM Specifications Disk Storage - 3 Disk Storage Floppy Drive Hard Drive Internal 1.4 MB floppy drive Internal 40 MB hard drive (optional) Specifications I/O Interfaces - 4 I/O Interfaces Floppy Drive DB-19 connector Supports Macintosh 800K Disk Drive, Apple 3.5 Drive, Apple SuperDrive, and Apple Hard Disk 20 1.5 MB/second transfer rate Supports a maximum of eight devices Low-speed serial interface Supports optional low-power mouse Two RS-422 serial ports; mini DIN-8 connectors Phone jack for optional external modem SCSI Apple Desktop Bus Serial Modem Specifications I/O Interfaces - 5 Power adapter port Stereo sound-in port DA-15 connector Supports the connection of external video devices Power Adapter Sound Video Specifications I/O Devices - 6 I/O Devices Keyboard 63 keys N-key rollover Apple Desktop Bus (ADB) interface US, British, French Canadian, Japanese, German, Spanish, French, Swedish, and Italian versions available Low-power version of the ADB mouse Opto-mechanical type ADB interface ADB interface Low-Power ADB Mouse Trackball Specifications I/O Devices - 7 18 keys ADB interface US, Pacific, and European versions available Numeric Keypad (Optional) Specifications Sound and Video - 8 Sound and Video Sound Generator Apple Sound Chip One-or four-voice mono (one or two voices in stereo) with 4-bit digital-to-analog conversion using a 22-kHz sampling rate Filtered by two Sony sound chips 10-in. (diagonal) screen Reflective, active-matrix, liquid crystal, flat-panel display 640 by 400 pixels, 75 dpi .28 mm dot size; .33 mm dot pitch; 80% active area Variable tilt Contrast (nonbacklit display) and brightness (backlit display) is software adjustable using the Control Panel. Video Display Specifications Electrical - 9 Electrical Main Battery Sealed lead-acid 6.5 V Up to 10 hours (fully charged battery); time depends on system configuration and power management settings 9 V transistor Backup Battery Power Adapter Input voltage: Output voltage: 85–270 VAC (100/240 nominal), 48–62 Hz (50/60 nominal) 7.0–7.6 V (7.5 nominal), 5 mA–2.0 A (1.5 nominal) US, Japanese, United Kingdom, Australian, and European versions Specifications Electrical - 10 Input voltage: 7.5 VAC Battery recharger output voltage: 6.5 VDC Battery Recharger (Optional) Specifications Physical - 11 Physical Dimensions (Display Open) Width: 15.25 in. (387.35 mm) Height: 11.0 in. (279.4 mm) Depth: 14.83 in. (365.25 mm) Height at rear panel: 4.05 in. (102.87 mm) Height at front panel: 2.10 in. (53.34 mm) 13.75 lb. (6.25 kg) without hard drive 15.75 lb. (7.16 kg) with hard drive Weight (With Battery) K Service Source Troubleshooting Macintosh Portable 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 next cure. (Note: If you have replaced a module, reinstall the original module before you proceed to the next cure.) If you are not sure what the problem is, or if the Symptom Charts do not resolve the problem, refer to the Flowchart for the product family. For additional assistance, contact Apple Technical Support. Troubleshooting Symptom Charts/Power - 2 Symptom Charts Power Screen is blank; computer is not responding 1 2 3 4 5 6 7 8 If computer is new, remove plastic sheet from between battery and contacts. Reset power manager. Connect power adapter and restart computer in three or four minutes. Replace main battery. Check keyboard cable connections. Replace keyboard. Replace keyboard cable. Replace logic board. Retain customerÕs SIMMs. Troubleshooting Symptom Charts/Power (Continued) - 3 Power (Continued) After main battery is removed, some Control Panel settings are different Power adapter is plugged in and connected; battery DA does not indicate charger is connected 1 Did you replace battery cover after removing main battery? If so, power interruption destroyed settings. Restore contents of Control Panel. Replace backup battery. Verify that charger is connected properly. Replace main battery. Replace power adapter. Replace logic board. Retain customerÕs SIMMs. 2 1 2 3 4 Troubleshooting Symptom Charts/Power (Continued) - 4 Power (Continued) Low-power warning appears soon after you start to use computer 1 2 3 Attach power adapter. Make sure peripherals display low-power icon. Reduce use of power-consuming devicesÑfor example, floppy drive, hard drive, modem, and speakerÑor connect power adapter. Upgrade to system software 6.0.5 or later. Replace battery. Replace keyboard. Replace wire harness assembly. Replace logic board. Battery does not retain charge, even when computer is not in use 1 2 3 4 5 Troubleshooting Symptom Charts/Video - 5 Video Some pixels never come on; no pattern Some pixels are always black; no pattern Row of pixels is always black If display contains six or more voids, replace LCD display. Maximum of five permanently OFF pixels (voids) is acceptable. If any pixel is on constantly, replace LCD display. 1 2 3 1 2 3 Replace LCD display. Replace display cable. Replace logic board. Retain customerÕs SIMMs. Replace LCD display. Replace display cable. Replace logic board. Retain customerÕs SIMMs. Row of pixels never blackens Troubleshooting Symptom Charts/Video (Continued) - 6 Video (Continued) Display is blurred 1 2 1 2 3 4 Display is too light 1 2 3 Adjust angle of display. Use Control Panel to adjust screen contrast. Move computer closer to direct light or move light source closer to computer. Use Control Panel to adjust screen contrast. Replace LCD display. Replace logic board. Retain customerÕs SIMMs. Adjust angle of display. Use Control Panel to adjust screen contrast. Replace LCD display. Display is too dark Troubleshooting Symptom Charts/Video (Continued) - 7 Video (Continued) Backlight level cannot be changed Backlight does not operate Use version 1.3 of Portable CDEV. 1 2 3 4 5 Use version 1.3 of Portable CDEV. Check inverter PCA connections. Replace inverter PCA. Refer to ÒLCD Display (Backlit)Ó in Take Apart. Replace LCD Display. Replace logic board. Retain customerÕs SIMMs. Check display cable connection. Replace LCD display. Replace display cable. Replace logic board. Retain customerÕs SIMMs. Display is blank, though computer appears to operate correctly 1 2 3 4 Troubleshooting Symptom Charts/Floppy Drive - 8 Floppy Drive Audio and video are present, but internal drive does not operate 1 2 3 4 1 2 3 4 Replace floppy disk. Replace floppy drive. Replace floppy drive cable. Replace logic board. Retain customerÕs SIMMs. Replace bad system disk with known good. Replace floppy drive. Replace floppy drive cable. Replace logic board. Retain customerÕs SIMMs. Disk ejects while booting; display shows Mac icon with blinking ÒXÓ Troubleshooting Symptom Charts/Floppy Drive (Continued) - 9 Floppy Drive (Continued) Disk does not eject 1 2 3 4 5 Disk initialization fails 1 2 3 4 Shut down computer, press and hold trackball or mouse button, and switch on computer. Eject disk manually by pushing opened paper clip into hole near drive. Replace floppy drive. Replace floppy drive cable. Replace logic board. Retain customerÕs SIMMs. Verify that disk is Apple-certified. Replace floppy disk. Replace floppy drive. Replace logic board. Retain customerÕs SIMMs. Troubleshooting Symptom Charts/Hard Drive - 10 Hard Drive Internal hard drive does not operate 1 2 3 4 5 Switch on external SCSI devices connected to Portable. Check hard drive cable connection. Use HD SC Setup to see whether drive is visible. If it is, reinitialize drive. Replace hard drive. Replace logic board. Retain customerÕs SIMMs. Troubleshooting Symptom Charts/Peripherals - 11 Peripherals After external SCSI device is connected, computer no longer boots Cursor does not move when you use trackball 1 2 3 4 1 2 3 4 5 Switch on external SCSI device before starting computer. Verify that cable termination is correct. Verify that no two SCSI devices have same device address. Replace logic board. Retain customerÕs SIMMs. Reset power manager. Check cable connections between trackball and logic board. Replace trackball cable. Replace trackball. Replace logic board. Retain customerÕs SIMMs. Troubleshooting Symptom Charts/Peripherals (Continued) - 12 Peripherals (Continued) Cursor intermittently does not move or moves erratically Cursor does not move when you use mouse. 1 2 Clean trackball ball and internal rollers. Replace trackball. 1 2 3 4 5 1 2 3 Check mouse connection to ADB port. Reset power manager. Clean mouse ball and inside mouse. Replace mouse. Replace logic board. Retain customerÕs SIMMs. If trackball button isnÕt working, replace trackball cable. If mouse button doesnÕt work, replace mouse. Replace trackball ball. Replace logic board. Retain customerÕs SIMMs. Cursor moves, but clicking button has no effect Troubleshooting Symptom Charts/Peripherals (Continued) - 13 Peripherals (Continued) No response to any key on keyboard 1 2 3 4 Known-good ImageWriter, ImageWriter II, or LQ doesnÕt print Known-good LaserWriter doesnÕt print 1 2 3 4 1 2 3 4 Reset power manager by pressing reset and interrupt switches simultaneously. Check keyboard connection to logic board. Replace keyboard. Replace logic board. Retain customerÕs SIMMs. Verify that System is 6.0.5 or later. Verify Chooser settings. Replace printer cable. Replace logic board. Retain customerÕs SIMMs. Verify that System is 6.0.5 or later. Verify Chooser settings. Replace printer. If new printer works, computer is OK. Replace logic board. Retain customerÕs SIMMs. Troubleshooting Symptom Charts/Peripherals (Continued) - 14 Peripherals (Continued) Device connected to modem port doesnÕt work Serial devices are unrecognized or garbage is transmitted and/or received 1 2 3 1 2 Verify that External Modem is selected in the Portable CDEV. Verify that System is 6.0.5 or later. Replace logic board. Retain customerÕs SIMMs. Use version 1.0 of Portable INIT. Upgrade to system software 6.0.5 or later. Troubleshooting Symptom Charts/Peripherals (Continued) - 15 Peripherals (Continued) When using an external modem: after exiting a communication application and putting the computer to sleep three or four times, the computer freezes when it comes out of system sleep Upgrade to system software 6.0.5 or later. Troubleshooting Symptom Charts/Internal Modem - 16 Internal Modem Internal modem options do not appear in Portable CDEV when modem is installed Modem does not respond properly to AT instructions 1 2 3 Reseat modem card. Replace modem card. Replace logic board. Retain customerÕs SIMMs. 1 2 Modem interferes with system sound 1 2 Verify that baud rate and data format settings of communications application are compatible with Portable Data Modem 2400 and remote modem. Replace modem card. Replace modem card. Replace logic board. Retain customerÕs SIMMs. Troubleshooting Symptom Charts/Internal Modem (Continued) - 17 Internal Modem (Continued) Modem does not respond to incoming call 1 If system doesnÕt respond to incoming call during sleep mode, select When Phone Rings option in Automatic Wake-up section of Portable CDEV . Replace modem card. Replace logic board. Retain customerÕs SIMMs. 2 3 Modem has no sound output Replace modem card. Troubleshooting Symptom Charts/Miscellaneous - 18 Miscellaneous Screen goes blank and computer shuts down every few minutes Some applications seem to run slower after few seconds Hard disk is slow to respond, or screen goes blank too often Adjust sleep delay in Control Panel or connect power adapter. Disable system rest. Adjust sleep delay in Control Panel or connect power adapter. Troubleshooting Symptom Charts/Miscellaneous (Continued) - 19 Miscellaneous (Continued) Speaker doesnÕt work 1 2 3 4 Verify that volume setting in Control Panel is 1 or above. Check speaker connection to logic board. Replace speaker. Replace logic board. Retain customerÕs SIMMs. Screen suddenly goes blank Error chords sound during startup Press any key except Caps Lock. Replace logic board. Retain customerÕs SIMMs. Troubleshooting Symptom Charts/Macintosh Portable Startup Problems Macintosh Portable Startup Problems Flowchart 1 START Reset power manager. Turn on system without startup disk (press any key except <Caps Lock>). Do startup tones sound? Yes No Is any video displayed? Yes No 1. Replace keyboard. 2. Replace keyboard cable. 3. Replace logic board. 1. Replace speaker. 2. Replace logic board. Is startup tone normal? Yes Is gray pattern displayed? Yes 1 1. Verfiy that display cable is connected. 2. Replace LCD display. 3. Replace display cable. 4. Replace logic board. No Go to Start Replace logic board. No Troubleshooting Symptom Charts/Macintosh Portable Startup Problems Macintosh Portable Startup Problems Flowchart 2 1 Is disk icon with question mark displayed? Yes Insert System Tools in floppy drive. No Replace logic board. Go to Start Does desktop appear? Yes No Do you hear sounds from disk drive? Yes 1. 2. 3. 4. No 1. Replace keyboard. 2. Replace keyboard cable. 3. Replace logic board. Use known-good startup disk. Replace disk drive. Replace disk drive cable. Replace logic board. Go to Start Do trackball and button function correctly? Yes END No 1. 2. 3. 4. Reset power manager. Replace trackball. Replace trackball cable. Replace logic board. K Service Source Take Apart Macintosh Portable Take Apart Rear Cover - 1 Rear Cover No preliminary steps are required before you begin this procedure. Rear Cover Review the ESD precautions in Bulletins/Safety. Take Apart Rear Cover - 2 Press the two plastic cover latches, pivot the rear of the cover up, and lift off the rear cover. Rear Cover Take Apart Keyboard Cover - 3 Keyboard Cover Keyboard Cover No preliminary steps are required before you begin this procedure. Review the ESD precautions in Bulletins/Safety. 1 Push the carrying handle toward the computer and open the display. Take Apart 2 Keyboard Cover - 4 Position the computer upright on the rear panel. 3 Foot Insert the tip of a screwdriver under the center of each foot; gently lift the foot away from the case and remove it. Take Apart 4 Keyboard Cover - 5 Insert a jeweler’s screwdriver into the center hole at the topright corner of the bottom case. Push in the screwdriver and unsnap the corner of the keyboard cover. Repeat this step to unsnap the left corner of the keyboard cover. 5 Take Apart 6 7 Keyboard Cover - 6 Place the computer flat on the grounded surface. Starting at the edges and working toward the center, slide your index fingers between the bottom case and the keyboard cover until the cover releases. Note: Two latches attach the center of the cover to the bottom case, so you’ll feel some resistance as you lift the center cover. Take Apart Main Battery - 7 Main Battery Before you begin, remove the rear cover. Review the ESD precautions in Bulletins/Safety. Caution: The main battery is a sealed, lead-acid battery that contains toxic materials. Review battery handling and disposal instructions in Bulletins/ Safety. Main Battery Take Apart 1 Main Battery - 8 Press the two plastic tabs at the front of the battery cover and slide the battery cover toward the rear of the computer. Lift out the main battery. 2 Main Battery Battery Cover Caution: You must reinstall the battery cover if you are doing anything other than replacing the main battery. Failure to reinstall the cover leaves power connected to the logic board and could damage new and old modules. Take Apart Backup Battery - 9 Backup Battery Before you begin, remove the following: • Rear cover • Main battery cover Caution: Review the ESD precautions in Bulletins/ Safety. Backup Battery Take Apart Backup Battery - 10 Note: Removing the backup battery erases the contents of parameter RAM. Before removing the backup battery, be sure to note all the Control Panel settings so you can restore them after completing your repairs. Take Apart 1 Backup Battery - 11 Using the tip of a jeweler’s screwdriver, lift the edge of the backup battery far enough to grab the battery with your fingers. Remove the battery from its compartment. Disconnect the battery cable from the battery. 2 Backup Battery Component Take Apart Hard Drive - 12 Hard Drive Before you begin, remove the following: • Rear cover • Main battery • Keyboard cover • All option cards Caution: Review the ESD precautions in Bulletins/ Safety. Hard Drive Take Apart Hard Drive - 13 Caution: Remember to replace the battery cover after removing the main battery. Failure to put the cover on leaves power connected to the logic board. Removing and replacing modules with power available could damage any module. Take Apart 1 Hard Drive - 14 Disconnect the following cable connectors from the logic board: • Display cable from J19 • Hard drive cable from J18 Hard Drive Take Apart 2 Hard Drive - 15 Close the display and move the hard drive cable toward the rear of the computer. Caution: Do not loosen or remove the Torx screws that attach the hard drive to the drive shield. Doing so could irreparably damage the hard drive. Unsnap the two plastic latches and remove the hard drive (with shield) from the subframe. 3 Plastic Latch Hard Drive Cable Hard Drive Plastic Latch Take Apart Hard Drive - 16 Replacement Note: For information on removing the hard drive form the carrier and returning drives, cables, and carriers to Apple, refer to Additional Procedures in the Hard Drives Manual. Take Apart Upper Floppy Drive - 17 Upper Floppy Drive Before you begin, remove the following: • Rear cover • Main battery • All option cards Caution: Review the ESD precautions in Bulletins/ Safety. Upper Floppy Drive Take Apart Upper Floppy Drive - 18 Caution: Remember to replace the battery cover after removing the main battery. Failure to reinstall the cover leaves power connected to the logic board. Removing and replacing modules with power available could damage any modules. Take Apart 1 Upper Floppy Drive - 19 Disconnect the floppy drive cable from the floppy drive. 2 Plastic Latch Upper Floppy Drive Floppy Drive Cable 3 Unsnap the two plastic latches and remove the floppy drive (with retainer) from the subframe. Depress the two metal tabs and remove the floppy drive mechanism from the retainer. Plastic Latch Take Apart Upper Floppy Drive - 20 Replacement Note: Before you install a replacement 1.4 MB SuperDrive, you must remove the dust shield. Take Apart Lower Floppy Drive - 21 Lower Floppy Drive Before you begin, remove the following: • Rear cover • Main battery • All option car..."

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