Logic Board
Before you begin, remove the following Caution Review the ESD precautions in Bulletins Safety. 1 Slide the logic board toward the front of the case until the board stops. 2 Gently lift the front end of the logic board and remove the board from the case. Replacement Note Before you replace the logic board, make sure the metal grounding tabs that surround the port holes on the rear of the case are not folded in front of the holes. Replacement Note Remove the SIMMs from the defective logic board...
Isopropyl Alcohol IPA
In the unfortunate event that gloves are not worn, and fingerprints and oil smudges are visible on the inside of the glass, cleaning should be done using a lint free cloth and IPA. Spray a small amount of IPA onto a CLEAN lint free cloth to avoid introducing any other contaminants. Gently wipe the area and allow the glass to dry. Note The silicone rollers are only effective in removing dust and other particles. If fingerprints or oil smudges are not removed prior to using the roller, the...
Builtin iSight Camera
The built-in camera is not recognized. 1. Boot the computer to the desktop and launch iChat AV. Note You do not need to be connected to a network to use iChat AV to troubleshoot. Verify that the correct versions of Mac OS X and iChat AV are installed. Reinstall or update software as needed. 2. Open the iChat AV preferences and click on the 'Video' icon. Verify whether the camera is recognized by the iChat AV software. Is the camera recognized Yes the camera is recognized and video preview is...
Take Apart
General Information 7 Product View 7 Opening the Computer 7 Note About Images in This Manual 7 Serial Number Location 8 General Tools 9 Required Special Tools 9 View of the Main Modules 11 View of the Rear Housing and Cables 11 Back View 12 I O Ports 13 Cleaning and Handling the Glass Panel 14 Cleaning and Handling of the Glass Panel 24 Removing the Glass Panel 27 Replacing the Glass Panel 30 Installing a Replacement Glass Panel 35 Clutch Mechanism 167 Chassis 172 AC Power Inlet 177 Camera...
Replacing the Camera Board
1. Connect the camera cable to the camera board. Reapply the kapton tape over the cable and connector. 2. Lower the camera bracket onto the black posts on the rear cover. 5. Clean and replace the glass panel. Note This step is very important. Follow the procedures to ensure the glass is clean and free of particles.
Removing the Display Panel
1. Place the computer with the display face up. 2. Remove the two T6 screws from the LVDS connector. Pull the black tab on the cable, or grasp the connector by the edges to disconnect it from the logic board. 3. Disconnect the display sensor cable from the left side of the logic board. 3. Disconnect the display sensor cable from the left side of the logic board. 4. Remove the eight T8 screws from the sides of the panel frame. 4. Remove the eight T8 screws from the sides of the panel frame. 5....
Parts Identification
The door used on the 6x and 8X drive mechanism is Apple Service Part number 922-2531, Door, CD-ROM, PB1400. This part is now listed as a Replacement Part and is covered under warranty. Service Providers will receive a tier one labor reimbursement for replacing the CD-ROM Door. The door used on the 12X drive mechanism is Apple Service Part number 922-3331, Door, CD-ROM, PB1400. This 1 additional screv located left of center on bottom of 1 2x drive only. part is also listed as a Replacement Part...
Form Factor
To achieve a reasonably compact form factor, the tail end of the cassette has been designed to extend out from the engine footprint A . Consequently, the pickup rollers feed from the insertion end of the cassette B , similar to the LaserWriter II. This arrangement influences the architecture of the printer in the following ways. 1 Because pickup occurs deep within the printer, all mechanical drive elements are arranged vertically along the rear C , resulting in a simple C-shaped paper path....
No Raster Flowchart
2. Attach ground probe black to monitor frame 3. Touch multimeter red probe to CRT socket pin H. See picture A. 1. Replace Main Deflection, CRT Video, Rear Fence. See Take Apart chapter. 2.Adjust cutoff and white balance. See Adjustments Chapter. 2. Attach ground probe black to monitor frame 3. Touch multimeter red probe to CRT socket pin H. See picture A. Troubleshooting No Raster Flowchart Continued - 1 8
About Your Optional Power Macintosh Audio Video Card
The information in this update describes the additional capabilities of Power Macintosh computers that are equipped with an optional Audio Video AV card. For more information on setting up or using your Power Macintosh computer, see the setup manual that came with you computer. In addition to the standard sound input and output ports, the Power Macintosh AV card provides additional sound input and output capabilities through RCA-type connectors. These connectors are found on devices such as...
All Blank Page
This condition suggests that the laser beam is not striking the photosensitive drum. Check for physical obstructions, especially sealing tape that has not been removed from the cartridge or something else just outside the laser scanner assembly. If this condition occurs only with a certain print job, make sure that some user-defined parameter such as magnification is not unintentionally placing the entire image off the area of the page. If the problem persists, refer the symptom, Blank Page or...
CDDVD Adapter Board
Before you begin, position the computer upside down, resting the computer on an ESD mat or other soft surface and remove the following 1. Using a jeweler's screwdriver, remove the two screws on the CD DVD adapter board. 2. Remove the adapter board from the back of the CD-ROM. Note Return the CD DVD-ROM drive to Apple without the cables, carrier, or the adapter board. Refer to the parts database for more information.
Troubleshooting Procedure Dks
The steps to solve a symptom are listed sequentially. You might not need to perform every step before the symptom is solved. Start with the first step, and then test for the symptom. If the symptom persists, replace any modules you removed, go to the next step, and test again. Continue down the list until the symptom is solved. 1. Reseat battery to verify battery is seated correctly with battery lock engaged. 2. Try known-good charged battery. 3. Turn off the computer. Reset the power manager...
Removing the Memory
1. Shut down the computer, and disconnect all cables including the power cord. 2. Holding the sides of the computer, lay it face down on a soft, clean cloth so the stand is facing you. 3. After removing the access door, touch the metal stand or bezel to discharge any static electricity from your body. Important Always discharge static before you touch any parts such as the memory board. To avoid generating static electricity, do not walk around the room until you have finished replacing the...
No internal SCSI drive icon appears on the desktop
1. Check that the drive is listed in Apple System Profiler. If it is, go to step 2. If it is not, go to step 5. 3. Verify there are no duplicate SCSI device addresses on a single SCSI bus. 4. Disconnect external SCSI devices and check for proper termination. 5. Reseat the SCSI PCI card and verify the cable is seated firmly in the card and drives. 6. Check internal SCSI termination. Internal drives should not be terminated the SCSI cable should have termination at the end. 7. If more than one...
Optical Audio
Digital data is transmitted to and from the optical audio I O using special optical cables. The 7.5 mm digital optical connectors on the cables, commonly referred to as TOSLink, are for both input and output and conform to the IEC60874-17 connector standard. The TOSLink friction-lock type F-05 connectors are available from pro-audio, musician's supply, hifi, and other retailers. Analog audio signals are converted to digital data internally. All audio is handled digitally inside the computer,...
Safety
WARNING HIGH VOLTAGE The highlighted module below is an AC DC power supply that poses a shock hazard. When the computer is under power, be aware that the power supply contains high voltages that pose a potential hazard to your personal safety. Never work on or near the power supply with the unit powered on and as a further precaution, always make sure the unit is unplugged when working on it with the front bezel removed. A white, shock- hazard warning symbol is silk-screened in the middle of...
Liquid Cooling System LCS
The Power Mac G5 June 2004 Dual 2.5 GHz Early 2005 Dual 2.7 GHz configurations use a liquid cooling system LCS to manage the temperature in the computer. The liquid cooling system is sealed and is designed to be opened only by an Apple Authorized Service Provider AASP . To ensure proper safety and handling of the LCS system, please read the following information. General Safety Information The LCS cooling system fluid is predominantly water 80 or greater with a mixture of corrosion inhibitors,...
Transferring the Serial Number
When replacing a top case, retain the customer's top case until the repair is complete. Before installing the replacement top case, transfer the serial number from the original top case to the replacement. Caution It is imperative that you copy the correct alphanumeric characters. Keep in mind that Apple serial numbers use the numbers 1 and 0 instead of the Roman letters I and O. 1. Locate the blank space for the serial number on the battery-bay area of the replacement top case. 2. On the...
Power Supply Verification
To power on, the server's logic board requires a trickle power of 5V. If the system fails to power on, first reset the PMU. Then follow the procedure outlined below to determine whether the problem is related to the power supply. Note To verify the power supply, you need a volt meter. When connecting the volt meter leads to specific pins, make sure the power supply remains securely plugged into its connector on the logic board. The following figure shows the pins and voltage on the server's...
Replacement Procedure Pku
1. Verify that the Mylar and rubber blocks are installed or transfer from the replaced board. The following procedures show how to replace the thermal materials Warning Whenever the logic board is separated from the heatsink, the thermal grease must be replaced. Failure to do so can cause the computer to overheat and Use a black stick to remove as much thermal grease as possible Use an alcohol wipes to clean the mating surface. Important Avoid unnecessary contact with new thermal material, as...
Reset the PMU with the Top Housing Off
You can also reset the PMU by directly pressing the PMU reset switch located on the logic board. Follow these steps to access the PMU reset switch on the logic boar 1. Unplug all cables from the computer. 3. If necessary, remove the internal frame to access the battery. 4. Measure the voltage of the battery in the battery holder. The battery should measure 2.6V to 3.0V. If the battery does not have minimum voltage, replace the battery. After replacing the battery, wait 10 seconds and then reset...
RemovalTo remove the fuser bulb
1. Open the top cover. Remove the EP cartridge and keep it in a safe plate. 3. Remove the screw with a gold flange from the right end of the roller cleaner cover, and remove it. 5. Remove the two screws with black flanges from the outer cover, and remove it. 6. Carefully pull outward on the metal clamp securing the fuser bulb. 7. Slide the fuser bulb out of the heat roller.
System crashes or hangs intermittently
1. If the system crashes or hangs in a specific application, replace the application. Mac OS X Verify the application is compatible with OS X. 2. Clear parameter RAM. Hold down Command-Option-P-R during startup until you hear a second startup chime. 3. Perform a clean install of system software with the software install and restore disc that came with the computer. 4. Mac OS 9 Start up with extensions off to determine if there are system extension or control panel problems. 6. Mac OS X Run Disk...
Plugging in your equipment
Before you plug your equipment into a wall socket, carefully read all the setup instructions in this chapter. Then, before you connect anything to your computer, follow the instructions in this section to plug it in. The plug grounds the computer and protects it from electrical damage while you are setting up. Attaching the bass unit to the computer Follow these steps to attach the bass unit to the computer 1 Locate the large cable attached to the computer. This cable plugs into the bass unit....
Power Manager Reset
If a unit crashes or experiences power problems, reset the power manager chip by pressing the rear power switch for 30-45 seconds. If resetting the power manager chip does not solve the problem, reset the code for the power manager chip by removing all power sources and letting the unit sit for 10 minutes. Take out the battery and disconnect the AC adapter and the internal backup battery. This forces the PowerBook Duo to reload the power manager code from the system software. RAM failure occurs...
Workgroup Server PDS Card
Caution You must unplug the computer prior to removing or installing the Workgroup Server 95 PDS card. Failure to unplug the computer could cause damage to the logic board and or card. 1 Disconnect the SCSI data cable from the Workgroup Server PDS card. 2 Caution Pull up evenly on both sides of the card to avoid bending the connector pins and remove the card. Note Grasp the rear of the card by the metal bracket. Replacement Caution When replacing the card, do not force it into the expansion...
Flowchart Starting Point
Check to make sure that the line voltage from the wall is correct and that the rated voltage for this printer 110V or 220V matches what exists at your location. If the problem persists, replace the power supply.
Miscellaneous
Screen goes blank and computer shuts down every few minutes Application seems to run slower after a few seconds Hard drive is slow to respond, or screen goes blank too often 1 Verify that computer is in sleep mode and not powered off. 2 Reset power manager. See Power Manager and PRAM Reset in Additional Procedures. Computer is going into system sleep to conserve battery power. Adjust sleep delays in Control Panel or connect power adapter. Computer is switching to system rest. If system rest is...
Controls
Figure 14-3 Full-size push buttons used in dialogs 226 Figure 14-5 Metal button dimensions 227 Figure 14-6 Bevel buttons as radio buttons and push buttons 228 Figure 14-7 Bevel button examples 229 Figure 14-8 Icon buttons used in a toolbar 230 Figure 14-9 Icon button dimensions 230 Figure 14-10 Examples of round buttons 231 Figure 14-11 Round button dimensions 231 Figure 14-12 Help button in the Page Setup dialog 232 Figure 14-13 Help button dimensions 232 Figure 14-14 Radio button spacing 233...
No sound from speakers
1. Use the Software Update system preference pane to verify that the latest audio update has been installed. 2. Press the F3 key with the fn key pressed and not pressed to verify that mute mode is not enabled. 3. Press the F4 or F5 key with the fn key pressed and not pressed to check the volume setting. 4. Verify no external speakers or headphones are plugged in. 5. Check the speakers tab on the Sound control panel to confirm that the software is correctly seeing that there are no external...
To install the fuser unit
1. Set the fuser unit down on the guides and align the inner sides. 2. Make sure the fuser is seated correctly. There should be no space between the fuser unit screws and the printer frame. CAUTION If the fuser unit is not perfectly seated inside of the guides, paper jam problems can occur. 3. Tighten the two captive screws on the fuser unit. Check to be sure the unit is secure. 4. Plug the three connectors from the fuser unit wires into the connectors under the fan. See Figure 4-21. 5. Install...
Closing the Computer
1. Replace the access panel and the four screws. 2. Reconnect all cables and restart the computer. 2. Reconnect all cables and restart the computer. Warning Never turn on the computer unless all of its internal and external parts are in place and it is closed. Operating the computer when it is open or missing parts can damage your computer or cause injury.
Exploded View
Optical Drive 661-3438, Combo, 24x, Slot 661-3464, Super Drive, 4x - Power Adapter, External 661-3463 Optical Drive 661-3438, Combo, 24x, Slot 661-3464, Super Drive, 4x 661-3440, 80 GB, 2.5 661-3439, 40 GB, 2.5 661-3465, 512 MB DDR 400 661-3466, 256 MB, DDR 400 Logic Board 661-3461, 1.25 GHz 661-3462, 1.42 GHz 661-3440, 80 GB, 2.5 661-3439, 40 GB, 2.5 661-3465, 512 MB DDR 400 661-3466, 256 MB, DDR 400 Logic Board 661-3461, 1.25 GHz 661-3462, 1.42 GHz Bottom Housing with Thermal Pad 076-1163
Replacing the Stand
1. Align the pin on the clutch mechanism to the central hole in the stand. 2. Position the stand on the clutch mechanism. Install the eight mounting screws. 3. Place the computer face down on a table so that the base of the stand extends over the table edge. Press the stand down and insert an access card into the slot between the top of the stand and the rear housing. Insert the access card as far as it will go. Gently lift the stand approximately two inches to unlock the clutch mechanism, and...
Replace the Inverter
1. Insert the inverter cable through a hole at the back center of the right mounting bracket, and press the sticky side of the replacement inverter onto the back edge of the bracket. Inverter should look as shown below. 2. Connect the inverter-to-display cables and tape them to the back of the display panel. 4. Replace the lower EMI shield.
Making Sure Your Computer Recognizes the New Memory
After installing additional memory in your iMac G5, check whether the computer recognizes the new memory. Do the following 2 When you see the Mac OS desktop, choose Apple K gt About This Mac. _ Software Update.,. 3 Processor 1.8 CHz PowerPC G5 memory 256 mb ddr sdram -Total memory installed TM amp ffl Apple Computer, Inc. 1983-2004 All Rights Reserved. The total includes the amount of memory that originally came with the computer plus the new memory you added. For a more detailed breakdown of...
Replacement Note Two 1
types of replacement I O door labels are available Check the I O logic board to see if it has an S Video port, then use the appropriate label. I O Wall Label Without S Video Symbol I O Wall Label Without S Video Symbol
IO Interfaces
ADB port maximum of three ADB devices is recommended 200 mA maximum current draw for all ADB devices Two RS-422 serial ports mini DIN-8 connectors HDI-30 SCSI port with 1.5 MB sec. transfer rate Connect SCSI device to computer with HDI-30 SCSI system cable. Monaural sound-in port adapters required to input sound from audio equipment with line level outputs line level signals must be attenuated 500 1 Stereo sound-out jack for headphones or external audio amplifier Video Video-out port 8 bit, 256...
PRAM and Power Manager Reset
Resetting the PRAM also resets the power manager. Note that resetting the PRAM erases the contents of the RAM disk, if there is one. Resetting the PRAM also restores the default settings in most control panels. After you reset the PRAM, be sure to check any custom settings for the desktop pattern, memory, network, AppleTalk, trackpad, power conservation, and so forth. Follow these steps to reset the PRAM 1 Making sure that the Caps Lock key is not down, restart the computer. Immediately after...
BuiltIn Fonts
SC Times, Helvetica, Courier, and Symbol NT, NTX, NTX-J Times, Helvetica, Helvetica Narrow, Courier, Symbol, Palatino, ITC Avant Garde, ITC Bookman, New Century Schoolbook, ITC Zapf Chancery, and ITC Zapf Dingbats IIf, IIg Times, Helvetica, Helvetica Narrow, Courier, Symbol, Palatino, ITC Avant Garde, ITC Bookman, New Century Schoolbook, ITC Zapf Chancery, ITC Zapf Dingbats, and Emulator. Note Built-in fonts can be expanded using an optional font expansion board. All LaserWriter II printers...
Geometry
Before you begin, remove the rear housing. Warning This product contains high voltage and a high-vacuum picture tube. To prevent serious personal injury or equipment damage, review the CRT safety instructions in Bulletins Safety. Caution With the rear housing removed, the metal chassis could short to the bottom of the logic board. Before switching on system power, make sure the chassis is not touching the logic board. To prevent the bottom of the chassis from buckling and touching the logic...
Keyboard
Before you begin, remove the following Floppy or CD-ROM Drive Assembly 1 Close the computer and turn it upside down. 2 Remove the 3 interchangeable screws from the bottom case. Caution If you pull the keyboard too far, you will rip the keyboard cables out of their connectors. Pull the keyboard just enough so its 4 interior tabs clear the brightness amp speaker grill. 4 Inserting a flat-blade screwdriver under the front of the keyboard, lift the keyboard slightly up and toward you until you feel...
Misc Symptoms
The computer runs with battery, but not with the power adapter plugged into wall outlet 1. Try known-good power outlet. 2. Try known-good power adapter and power cord. Note Verify that power adapter connector glows amber or green. If the power adapter light is green, turn over the computer and press the battery button. The battery lights should glow green and stay on if the power adapter is operating correctly. 3. Reset the power manager by pressing the key combination...
ExpressCard will not insert into the ExpressCard slot
1. Make sure the ExpressCard is 34mm in width. The general ExpressCard standard does allow for 54mm cards which will not fit in this slot. 2. Make sure the ExpressCard is oriented right side up cards are keyed and cannot be inserted upside down . 3. Verify that the ExpressCard is not warped or damaged in any way if so, replace the card. 4. Try a different ExpressCard. 5. Carefully raise the ExpressCard slot cover and check for a foreign object inside the slot. 6. If the slot cover is preventing...
Two Versions of the CRTVideo Board
Important In November 1999, a second version of the CRT video board was introduced. The second version is not backward compatible with the previous version the original board . You must verify the version and replace boards like for like. Check the serial number on the back of the display rear housing . A serial number of WR9451T8HOE or later means the unit uses a version 2 board. To interpret the number, check the date code embedded in the number. WR945xxxxxx can be interpreted as aaywwxxxxxx,...
Headphone Jack
The headphone jack is located on the left side of the computer. The headphone jack provides enough current to drive a pair of low-impedance headphones. It can also be used as a line-level output. The headphone jack has the following electrical characteristics impedance suitable for driving standard 32-ohm headphones output level 2.0 V peak-to-peak 0.7 V RMS signal-to-noise SNR 90 dB unweighted typical total harmonic distortion THD 0.03 or less
The Cuda Chip
The Cuda is a microcontroller chip. Its function is to Turn system power on and off Manage system resets from various commands Maintain parameter RAM PRAM Many system problems can be resolved by resetting the Cuda chip see the Symptom Cure tables for examples . Press the Cuda reset button on the logic board to reset the Cuda chip. The Cuda reset button is located on the back edge of the logic board between the modem port and the processor module. Refer to the Logic Board Diagram in the Basics...
Reassembly Procedure Ubq
1. Slide the display clamshell into the fixture, and place the hinge onto the top case, aligning the screw holes. 2. If necessary, slide the antenna assembly a millimeter or two to the left or right to fully align the holes. 3. Install four identical Torx T6 clutch screws first, and then install the remaining 13 identical Phillips screws. 4. Remove the MacBook Air from its fixture and check for proper alignment. Quick Test 1. Check the display brightness, the microphone, the iSight camera, and...