Home

Apple Imac G5 User's Manual

1. PAIN IN TAN CIN ISTUD EINE SSO OOOO IPSIS CIPIT ES WINNA ei ot ol ot aa let ae ot eae et ee ee INISENISI NINES ISIEN n SOO POOLED Oa DISSI 097 9109 QS S DAVIE DLO N A UU ITA INA ES S TENNIS INSISTE EN I ACE 579 6 10 99 9 Q9 00 0 C S ICE SIC RICE NANN COD DNAN OoUDmmmmmmPmono 68108870399 0 a aa A AT DES Uc 09 99 7 9 v0 0005 9 9 9 00 NINN IN INSTANTIA UIN T 00 99 I 9 SOLON UNITA O6 0oO0O0q420 Co PAA AAR AREA ARAB OS O00 8 FO OOF ELSON OO 9 009 0 ONO OE LOE UNI INA OOO LOO 99 90 ROE VEO EE OE AO 000107 Uu 70 000 10 025 700100 OL OL ODO VEO OIA AIS OO O00 CoU Tu Ooomqeon T M oo0dQu PSAP OOO QUSS NUN SC CO0Q0 Q9 9 DENI ODANIN EENEN OO NINNIN 0000 VOLO UN ODA AAO ASOLO AD DAPRABD ALLA PAE NRA EAR ALAA OLA AEP INS WINRAR RA AR UNS AUN AN iMac G5 17 inch Views 11 Screw Locators Service Source Repair Extension Program iMac G5 17 inch 2005 Apple Computer Inc All rights reserved Repair Extension Program for Video and Power Issues Apple has announced the iMac G5 Repair Extension Program REP for Video and Power Issues that covers first generation 17 inch and 20 inch iMac G5 models that have video or power related symptoms as a result of a specific component failure Instructions and CompTIA Codes to use specifically for repairs covered under the iMac G5 REP for Video and Power symptoms are provided in this section Overview The
2. d LU v 4 0 0 tv M N Te t N AY Pr y RA RUNS 5 M u v ae P S b e UN 26 iMac G5 17 inch Troubleshooting Symptom Charts Symptom Charts 10 When the computer starts up LED 22 will light after you hear the boot chime indicating the logic board is processing power correctly If LED 2 does not light go to step 11 for instructions on resetting the SMU If LED 2 remains off after resetting the SMU your logic board needs to be replaced Order and install the logic board for your computer 11 LED 3 will light last indicating that the logic board and LCD assembly have communicated and the LCD is ready to receive video Does LED 3 come on Yes This indicates that your logic board is working correctly to produce video Continue to step 12 No Continue to step 11 to reset system power management 12 Press the SMU reset button to reset system and power management This is the small metal button below the internal power button as shown ee p afl ww ee e22e20909 PTY YL ILE Rhee 0000 e EA e e90009051 ece0000 09 eeoeoee TILLA eo eeee ose After pressing the SMU button press the internal power button to start up the computer Does LED 3 light now Yes Press and hold the power button until the computer powers off Start the computer again and confirm that LED 3 is reliably lighting Continue to ste
3. La Virals Ps E v E o 4 M we gt me gt wo ap 3 3 e LIJ D n us m ee p 14 iMac G5 17 inch Take Apart Serial ATA Hard Drive 4 Remove the three hard drive screws Set the screws aside 442 E NT DA M i A 0 FPN 922 6668 who gee LUE P D 5 Carefully lift the hard drive straight up about one inch and disconnect the black cable from the white connector on the hard drive Note Leave the other end of the cable attached to the logic board x E rr E E INR d Serial ATA Hard Drive iMac G5 17 inch Take Apart 6 Using your fingers or a flat blade screwdriver disconnect the drive data cable and power cable from the hard drive 7 Lift the hard drive up and out of the midplane assembly Important Return this hard drive to Apple in the packaging provided 16 iMac G5 17 inch Take Apart Serial ATA Hard Drive Replacing the Serial ATA Hard Drive 1 Remove the replacement hard drive from its packaging 2 Connect the drive data cable and power cable to the hard drive Lower the hard drive into place on the midplane Serial ATA Hard Drive iMac G5 17 inch Take Apart 4 Replace the three hard drive screws 922 6668 NN Rin nn SSeS it ON LII wt 18 iMac G5 17 inch Take Apart Serial ATA Hard Drive 6 Press the video cable into the notch on the midplane chassis LLL o c REP ICM
4. st o TIT v gt Il iMac G5 17 inch Take Apart Logic Board 5 Onthe left side of the board use a T 6 screwdriver to remove the two screws on the Airport Extreme card guide Disconnect the AirPort antenna cable from the AirPort card guide or from the AirPort Extreme card if the card is present Lastly disconnect the power supply cable APPLE COMPUTER_INC L dud T y w aC CRC LJ On Se w y AS LJ y LE l DE xr pn COPPA L LO 1e LCOMTOT 6 Carefully slide the AirPort antenna cable out of the AirPort card guide slot Lift the AirPort card guide off the logic board and set it aside e Lx Pp 152 iMac G5 17 inch Take Apart Logic Board Logic Board 7 Using the T 6 screwdriver remove the two modem screws 8 Lift the modem straight up and off the logic board connector and disconnect the modem cable Note If a Bluetooth board is present continue with the next step otherwise go on to step 12 iMac G5 17 inch Take Apart 9 Using a T 6 screwdriver remove the two screws on the Bluetooth board if present Note This graphic shows the Bluetooth board on the iMac G5 20 inch however the Tg HERR FC sigo wr eris 49401 COTE MEY BOREL r f ASTU nm DE we OTON v 4 TE LIETI 17 inveares EUIS e 88 a o Aini CE o gue 2 m 05203 as my SSS ARSES SOS ECE RAD ES Ant 3 LATE m 5 TATAAS c T3 hop d
5. No Continue to the next step Symptom Charts iMac G5 17 inch Troubleshooting 25 6 Remove the back cover to access the diagnostic LEDs on the logic board 7 With the back cover removed locate the diagnostic LEDs 1 through 4 above the large white arrow on the main logic board 9 15908 L59900 155 PESO 9 ae Log 700 j 985 7102 A J8303 id lt e LH J LAT uy eis Ceool 9 lt nu lt e H Pr ry lt um E E C1700 eek ALD L C1719 LJ LJ bad M e A RT R600400 BIA LC TUSCE TO co res DOE 18 Md EELLELCEMM xm ano m rm qu Sp ct EUIS LIO a l t qo L6 mo QC8291 Na ums APT HE SE Sedi oe N i an coe tres R6401 ASO A CPU CLK Y Vian Mn LLLEE RIA a3 3 RE005 P sno A epe In R6403 CLK 2401 L26 ooe 42 c DICAM g 2 er Senor i 820 1540 08 WET 447 D aba A coasyee7se 8 Plug the power cord into the iMac G5 and into a known good AC outlet LED 1 should come on if your computer has been starting up properly If LED 1 is off see iMac G5 Troubleshooting No Power for further troubleshooting information 9 Turn the computer on by using the internal power button Press the small metal button under the fan cover as shown mp ro oe ae eo ini ttn ES ud cee E pom cm ef e eee eee eee eoe 20208208 see28 28 22 02202020 9 m d Jo0e0009009999 eeeetee 26 seoecseseeee eeeeeeee
6. Removing the Modem Board 1 Locate the modem board 2 Remove the two identical T6 screws ce Ex LII TIL I ME WYdYr ES P eter 7S got Ne gt WRi1oe FLILIFLSISELEEITEIELITIREIAE TI 2 pr F 4 La TIm m JE LJ i SE mis x mo L eS s t nia nnne I cusvve MEANMA A WINN 3 Holding the top and bottom edge of the board lift the modem board straight up to disconnect it from the logic board 4 Turn over the board and disconnect the cable from the modem board j 2 igid dpi LES p he ca c1 y ST ii z Jum MOL Sd oe wae gt LJ cis 200 iMac G5 17 inch Take Apart Modem Board Replacing the Modem Board 1 Connect the modem cable 2895 FERT nfi s 2 LJ cis JO HO 3vOH gt 4p 204 ona orn S satiyar 1 5008 6 Zu qim 35sn 120 32 7 uw vw ad ilie LIIS bcd EN 5 MS EE s ecen na BS G pman Pr c n SR b M 3 gt I m rr Dn ney XN i AELA TLT ITS Vee Wair 1 n nM 2 Holding the top and bottom edges of the board align the screw holes over the standoffs on the logic board Then press down on the area of the board that is over the connector Caution Do not press on any other areas of the modem board Modem Board iMac G5 17 inch Take Apart 3 Replace the two screws 5 Repl
7. c v vp iM yu h J x s T v roRHi wW Ho Ezi ULT T j Biois 14 er JEDE Te Y 2 ae 5 C f is 2 3 Holding the top and bottom edge of the board lift the Bluetooth board straight up to disconnect it from the logic board 4 Using your fingers disconnect the cable from the Bluetooth board Note This graphic shows the Bluetooth board on the iMac G5 20 inch however the board is in the same location on the iMac G5 17 inch computer Um NULL 204 iMac G5 17 inch Take Apart Bluetooth Board Bluetooth Board Replacing the Bluetooth Board 1 Connect the Bluetooth antenna cable Note This graphic shows the Bluetooth board on the iMac G5 20 inch however the board is in the same location on the iMac G5 17 inch computer 2 Holding the top and bottom edges of the board align the screw holes over the standoffs on the logic board Then press down on the area of the board that is over the connector Caution Do not press on any other areas of the Bluetooth board iMac G5 17 inch Take Apart 3 Replace the two screws PRIS ee EE HIP Ro DEI m K ACESA 5 Replace the back cover 206 iMac G5 17 inch Take Apart Bluetooth Board LCD Panel LCD Panel Tools Required Torx T10 screwdriver preferably with a magnetized tip e Clean soft lint free towel or blanket e Screw tray or something equivalent to hold the screw
8. ea lee M d amp CIOETELTETTID u fe T N OOF BEULI S 7 Pairs eg netiiu BID E s AUC di wire c o Tor ALNE ALETTE TATT ERETT 8 FUOTTEN LE T 7 Stet D A eR 4 Replace the two fan cover screws The larger screw attaches on the left Note Make sure the pull tab is sticking up as shown Serial ATA Hard Drive iMac G5 17 inch Take Apart Parallel ATA Hard Drive Tools e Use the screwdriver provided or a Phillips 2 screwdriver preferably with a magnetized tip e Screw tray or something equivalent to hold the screws Preliminary Steps Before you begin remove the back cover Part Location Note The Parallel ATA hard drive is only available on the Education model e 4 eccccc atat attt tte tute tu 0 0 e e 0_0 0 00 e eroe tet Hh EP T At agit 20 iMac G5 17 inch Take Apart Parallel ATA Hard Drive Removing the Parallel ATA Hard Drive 1 Ground yourself Touch the metal surface as shown below on the inside of the computer to discharge any static electricity Warning Always discharge static electricity before you touch any parts or install any components inside the computer To avoid generating static electricity do not walk around the room until you have finished installing the part and closed the computer Parallel ATA Hard Drive iMac G5 17 inch Take Apart 2 Locate the parallel ATA hard d
9. Service Source iMac G5 17 1inch Updated 1 October 2007 2005 Apple Computer Inc All rights reserved Service Source lake Apart iMac G5 17 1nch 2004 Apple Computer Inc All rights reserved General Information What s New October 2007 Updated Logic Board replacement procedure A caution was added to notify service providers not to twist flex or bend the iMac G5 logic as you install to board into the chassis Flexing the board may jeopardize the thermal interface between the heatsink and the processor Refer to the iMac logic board inbox notice 073 1158 for additional information July 2006 A diecut piece of microfoam 922 7671 is included with all replacement optical drives and display bezels It should be installed in between the disc drive and the display bezel to prevent optical media from ejecting out of the system and dropping to the desktop Only one diecut of microfoam should be used per system Refer to the replacement procedures in Take Apart for either the optical drive display bezel or microfoam shim for more information Display Bezel Assembly Elimination Effective July 24 2006 the Display and Bezel assembly module will no longer be available as a single service part for the iMac G5 17 and 20 inch models The Display and Bezel are now available as two separate service parts see below to simplify inventory and reduce repair costs e 922 6796 Front Cover Assy w Op
10. Audio Line In Sound Out Video Out USB 2 0 FireWire 400 J Modem On Some Models Ethernet amp e880DnBice Power On Button 16 iMac G5 17 inch Troubleshooting General Information Spares Kit Shipping with Replacement Modules 1 An extra thermal sensor cable shown below is included with the hard drive replacement part If the original sensor is damaged during the disassembly attach the new sensor cable to the main board and to the end of the hard drive as shown General Information iMac G5 17 inch Troubleshooting 17 DDR Memory iMac G5 computers work with memory modules DIMMs that meet all of these criteria PC3200 2 5V unbuffered 8 byte nonparity 184 pin 400Mhz DDR SDRAM There are two RAM slots The maximum amount of RAM you can install is 2 GB You can use RAM module sizes of 256 MB 512 MB and 1 GB in either slot DIMMs with any of the following features are not supported in the iMac G5 computer registers or buffers PLLs ECC parity or EDO RAM 18 iMac G5 17 inch Troubleshooting General Information Symptom Charts How to Use the Symptom Charts The Symptom Charts included in this chapter will help you diagnose specific symptoms related to the product Because cures are listed on the charts in the order of most likely solution try the cures in the order presented Verify whether or not the product continues to exhibit the symptom If the s
11. From the Apple menu choose About This Mac From the window that pops up click on More Info An application called System Profiler should open In System Profiler in the column on the left look under Hardware for a line called S ATA In the section on the right you should see a header saying S ATA and below it two items The first is your hard drive The second is your optical drive Do you see two items here Yes Even after checking for the drive in the startup manager discs won t show up This indicates that your optical drive needs to be replaced No Reseat the optical drive and check System Profiler again Does the optical drive appear this time If no go on to the next step If yes it looks like the drive connection may not have been too great but you ve got it plugged in properly now 3 Replace the optical drive 4 Replace the logic board The computer won t burn discs 1 The first thing we should check is whether your drive can read discs normally Try inserting an audio CD and check whether it shows up on your desktop or launches iTunes Then eject it and insert the iMac Software Install and Restore disc that came with your computer Are either of these discs recognized by the computer Yes This is a good sign So do you get a specific error message or error code when you try to burn a disc Go on to step 2 No So no disc will show up on your desktop Go ahead and leave the iMac Software Install an
12. Once Disk Utility is open select your Macintosh HD and on the toolbar choose Unmount Note if you have multiple partitions you should unmount each of these partitions This will spin down the hard drive The optical drive will also be busy at this time wait a moment for the optical drive to spin down also and then listen to the machine Is the sound that you ve been experiencing still present Yes With the hard drive and optical drive inactive all you should be hearing are the fans in the machine While booted to the CD these fans should be running at a lower level since the CPU is under very little task with both drives inactive Fan sound that includes objectionable ticking whistling or squealing may require further investigation and or replacement of the particular fan Go on to the Next Step No The normal functioning of the hard drive and optical drive will generate additional whirring and scratching sounds that may be audible All of these sounds are normal and do not indicate a failure with your machine If you wish to check the health of your hard drive see article 152349 Replacing a disk before it fails 5 Power off your computer remove the power cord and any other cables that are connected to your computer and remove the back cover Symptom Charts iMac G5 17 inch Troubleshooting 37 6 With the cover off plug the computer in and start it up by pressing the internal power button gt oe p eee e o
13. Tools Required e Use the screwdriver provided or a Phillips 2 screwdriver preferably with a magnetized tip e Screw tray or equivalent to hold the screws Preliminary Steps Before you begin remove the back cover and the optical drive Part Location Note The education models do not have an optical drive 7 d M 4 2 gt MOS Oo iMac G5 17 inch Take Apart Installing the Microfoam onto the Bezel 1 Steps 2 7 show photos of the microfoam inside the iMac G5 20 inch computer The installation procedure is the same for the 17 inch computer Go on to the next step 2 Locate the piece of microfoam and the two white posts circled on the bezel 3 With the shiny side of the microfoam facing the bezel slide the holes of the microfoam onto the two white posts on the bezel 36 iMac G5 17 inch Take Apart Microfoam Shim 4 Tuck the mircofoam into place before installing the optical drive 5 Heplace the optical drive in the direction of the arrow lining up the white posts on the bezel with the holes on the optical drive bezel Microfoam Shim iMac G5 17 inch Take Apart 6 Slide the optical drive into place and press down near the tab to reconnect the drive 7 Make sure no microfoam is sticking out of the bezel Note Before reassembling the computer partially insert an optical disc to make sure it inserts smoothly 8 Replace the optical drive screws 9 Replace th
14. e controls RPM fans e provides processor Mode Ring and thermal data store e monitors processor temperature and power consumption e monitors VRD10 compliant processor power supply digital interface The iMac G5 system employs advanced thermal and wattage management to keep acoustic noise to a minimum The enclosure is divided into discrete zones each with independently controlled fans bringing in cool air from the front of the enclosure directing it over system components and exhausting it out the rear Temperature and power consumption are monitored by the operating system which communicates with the SMU which in turn controls and monitors fan operation If Mac OS X is not booted thermal management must be provided by the alternate development operating system 14 iMac G5 17 inch Troubleshooting General Information Note If Mac OS X is not booted and the alternate development operating system does not manage the fans the fans go into an unmanaged state and run at full speed The SMU controls the fans and regulates the speeds to run each fan The SMU derives fan speed from sensors in each thermal zone Some of these sensors monitor thermal only while others monitor both thermal and power If the SMU does not receive an update from the operating system within two minutes it begins to ramp up the speed of the fans to full speed General Information iMac G5 17 inch Troubleshooting 15 Ports The iMac G5 ports are shown below
15. 2 Lower the power supply into the computer s X in h A 3 Connect the black power supply connector and tighten the three captive screws turning them to the right 4 LI Tm M E O K Te TN oe a m ar T i pt 76 iMac G5 17 inch Take Apart Power Supply Power Supply 4 Turn the middle case screw to the left about five revolutions This step prepares the back cover to be installed and secured Replacement Note Align the card s connector with the expansion slot and press until the connector is inserted all the way into the slot If you re installing a 12 inch card make sure the card engages the appropriate slot in the PCI card guide e Don t rock the card from side to side instead press the card straight into the slot e Don t force the card If you meet a lot of resistance pull the card out Check the connector and the slot for damage or obstructions then try inserting the card again Pull the card gently to see if it is properly connected If it resists and stays in place and if its gold connectors are barely visible the card is connected iMac G5 17 inch Take Apart AirPort Extreme Card Only the AirPort Extreme Card may be installed in the iMac G5 Older AirPort Cards do not work in this computer Tools No tools are required for this procedure Preliminary Steps Before you begin remove the back cover Part Location ECCE Ey f n LO EUN m
16. 5 3 Place a soft clean towel or cloth on the desk or surface Hold the sides of the computer and slowly lay the computer face down as shown 4 Locate the three case screws circled below You may have to lift the metal foot to locate the middle case screw Note These screws are captive they are part of the display bezel assembly and cannot be removed 5 Using the screwdriver provided or a Phillips 2 screwdriver loosen the three captive screws Note Turn the screws to the left until they stop turning Don t force the screws once they stop turning 6 iMac G5 17 inch Take Apart Removing the Back Cover 6 Holding the back cover by the metal stand tilt the cover up and lift it off the computer Set the back cover aside Removing the Back Cover iMac G5 17 inch Take Apart 7 Replacing the Back Cover Tools Use the screwdriver provided or a Phillips 2 screwdriver Procedure 1 Remove the replacement back cover and foot from its packaging 2 Replace the cover so that the slots on the top edge of the back cover mate with the tabs on the display housing 8 iMac G5 17 inch Take Apart Replacing the Back Cover 3 Lower and press the cover into place until it fits snugly on the computer 4 Tighten the three captive case screws by turning them to the right Don t overtighten the screws e ore tetera fete ee 999 e v ww w e ee 9 o eee ee 522259 e o o
17. 6 0020 9 b 1 b 2 How do you tell if you have an iMac G5 with the ambient light sensor Look at the picture below Along the bottom of the display bezel next to the middle case screw is a small bump protruding from the case This is the ambient light sensor 3 All customer removable screws are brass colored Do not remove screws unless they are brass colored or you will void your warranty 4 Ground yourself when working on the computer The procedure will show you how to ground yourself 5 Do not pull on individual wires when disconnecting a part pull on the connector 6 A magnetized L shaped Phillips screwdriver is included with the replacement part 70 iMac G5 17 inch Take Apart Power Supply Removing the Power Supply 1 Ground yourself Touch the metal surface as shown below on the inside of the computer to discharge any static electricity Warning Always discharge static electricity before you touch any parts or install any components inside the computer To avoid generating static electricity do not walk around the room until you have finished installing the part and closed the computer n VLE f Gt ALITE Power Supply iMac G5 17 inch Take Apart 2 Locate the power supply in the picture below oe eee ee P 9 9 9 39 9 9 3 ee ee eee ee ee ee ee ee oo seeree fe x CY FED k N aa eom S PA 4 Vu EE m M 2 ATN
18. E ar gi oe 2u zo Me SEULS mis LCS e O al Jl a hl Be A 13 A IE SV 7 f rii etes MD s 4d f T t ay all ng iy 771 Off 0 000 00 ee 0 0 0 0 8 6 o5 6 7 5 20 9 0 8 c 9 4 B P B B M 9 9 9 Te e e e a ula at 9 9 0 0 9 6 6 oo oe c c c C 80 iMac G5 17 inch Take Apart AirPort Extreme Card 4 Pullthe tab on the card to remove the card from the AirPort card guide Important Return this AirPort Extreme card to Apple in the packaging provided C AirPort Extreme Card iMac G5 17 inch Take Apart Replacing the AirPort Extreme Card 1 Remove the replacement AirPort Extreme card from its packaging 2 Slide the AirPort Extreme card into the AirPort card guide channel until it clicks into place 3 Connect the antenna cable to the end of the installed AirPort Extreme card 82 iMac G5 17 inch Take Apart AirPort Extreme Card 4 Make sure the AirPort Extreme card is flush with the plastic AirPort card guide JUI SIN HS4160KSRI6E TIL fw Rm i su AirPort Extreme Card iMac G5 17 inch Take Apart battery Tools No tools are required for this procedure You may however find a flat blade screwdriver or the nylon probe tool useful in removing the battery from its holder Preliminary Steps Before you begin remove the back cover Part Location e I IY m An me eA han TT TOR i js 3 BE TR i
19. O Un To Access the Optical Drive S S E w iMac G5 17 inch Take Apart Screw Charts To Access the Inverter WM238330T1 Chine EHE WINI oe 9 9 C M e o e e 02 e o 9 o 9 02 e 0 0 NW 0 2 5 y eo 9 DW e9029 JU US s Ja i9 VAR m i UB Th OB OOOK IE IED hi e C ANI A M A hb A BN we cor ola heap py t RON EAPO j ne o 9029 o o 9 e x u Pp APPLE 1 convict h ES YT es oe 1 sa Ld Nx 226 iMac G5 17 inch Take Apart Screw Charts To Access the Fan Cover iMac G5 17 inch Take Apart Screw Charts To Access the Hard Drive g t5 ig o Qm Pen RRES v DLE T oo on LIT d m ETIDDPD gttecrecetestoet V pesasid md a d a a Sw me IMMM ve DP 228 iMac G5 17 inch Take Apart Screw Charts To Access the Display Bezel Part 1 I n 1 SEURASIN EANET NA NAAA OANAN NAAS NAAA ANANN OAA N LOLOL ane ASINI UA CASU EIEN CUN NA A mAPNANRO Bo9o 9 odgo MOLLE ONO COIN ONO LO LONGO OU gt gt 4 2 2 y 2 E S 9 o 5 D o iMac G5 17 inch Take Apart Screw Charts To Access the Display Bezel Part 2 APPLE COMPUTER ORLI a Uu e LUFT 5 320 1540108 X T l 230 iMac G5 17 inch Take Apart Screw Charts To Acces
20. Put the computer to sleep from the Apple menu and wake the computer again to test the settings Check Energy Saver setting to see when the computer has been designated to sleep No Continue to the next step 4 Reset your computer s PRAM Parameter RAM e f your iMac is on turn it off by pressing the power button in until the computer powers off You should hear the drives and fans go quiet Wait for a few seconds While the computer is off with your left hand hold down the Apple key the option key next to it and the letter R When you have them all pressed push the power button with your right hand and then quickly move that hand to hold down the letter P Keep the four keys pressed while the computer starts up Make sure you hold down the four keys P R Command Option while the computer starts up When you keep all the keys held down you will hear the startup chime over and over again about every ten seconds until you let go After you hear the second chime you can let go of the keys If you didn t hear at least two startup chimes go to step one on this page and try again It s important that you two startup chimes when performing this procedure This indicates that you have successfully reset the computer s PRAM Parameter RAM 5 Does the computer display video after successfully resetting the computers PRAM Yes Problem resolved Restart the computer from the Apple menu and make sure the computer is starting up properly
21. Video Symptoms Affected computers will exhibit one or more of the following e Scrambled or distorted video e The system intermittently freezes or crashes e The system may crash during the boot process with the fans running at full speed Repair Procedure 1 Verify that the system is eligible for the REP program Refer to the topic Eligible Products mentioned earlier in this section 2 Ifthe computer is eligible remove the rear cover on the iMac G5 so that the main logic board is visible 3 Inspect the capacitors highlighted below on the logic board looking for signs of bulging and or venting Ja NW m uw X wr un t le iMac G5 17 inch Repair Extension Program 6 4 Affected capacitors will have a sign stamped into the top of the capacitor Note Not all capacitors stamped with a sign are faulty so further inspection is required to determine whether one or more of the capacitors are faulty TIIIEETHM T R5627 25633 g b 894 M uo 5 Failed capacitors will no longer have a flat top and can be identified by signs of bulging shown below and or venting The top may bulge upward In severe cases the top of the capacitor may show signs of electrolyte venting which appears as a small amount of cream colored paste around the top of the capacitor One or both of these symptoms indicates that the capacitor has or will likely fail Warning Use caution when handling failed electronic components
22. ees f 22 NR 3 34 s dan H pA E f 1 fies p In No a i il i t prs K hs di m TTA 4 4 4 tiie 4 D T V by dd Marin d i E Nr EM im m diem mr HW m CU s 78 iMac G5 17 inch Take Apart AirPort Extreme Card Removing the AirPort Extreme Card 1 Ground yourself Touch the metal surface as shown below on the inside of the computer to discharge any static electricity Warning Always discharge static electricity before you touch any parts or install any components inside the computer To avoid generating static electricity do not walk around the room until you have finished installing the part and closed the computer ANN ee9 C AirPort Extreme Card iMac G5 17 inch Take Apart 2 Locate the AirPort Extreme card et 7 i Ces Y i I ym Pd BEES T A SA iu nc Ly 5 be uad e 1 E A XS D IE NE e s u Wu a 7 a l Aonad a a i a 506954 N E XN yes i DR in n eA VEA S UK gt AA AM vier ux D i Ha i d ett 3 meee Ui EM 7 D Li nita de JU eet A gt y CTO 4X0 ng AM 3 v DM a bs 7 CA a 2 Yl UM i f 4 eo EX DELL 4 P pe f n Uu o X 4 e N axi E WAZ t I D n 5 y 1 T c M s 4 gt aiaa D 4 r oe lt LJ r lt et nt A Na r a vi Y N 3 ae D 49 D i T gt Y DO 3 Races ee acp e
23. fesesesaleTelelele le lele paler OOOOOOK o ot aiaee Midplane Assembly 94 iMac G5 17 inch Take Apart 7 Release the cable from the clip Disconnect the cable connector ata CES f 9 9 9 9e 906 6 0 9 f o 9 a et Sen DUNS NR SONS 132332925 D DOOR X te o 949495949 9 9 9 9 95955 9 9 5 5 9 0 0 0 9 040 9 0 0 9 0 9 0 9 9 95959 9595 E nS ees ee SERS SOS MO su LS Midplane Assembly iMac G5 17 inch Take Apart 5 Liftthe inverter straight up to disconnect the inverter board 6 Disconnect the white connector circled below by pulling it straight up Set the inverter board aside Note Be careful not to prick your fingers on the pins next to the white connector 96 iMac G5 17 inch Take Apart Midplane Assembly 7 Locate the fan cover shown below APPLE COMPUTER 2004 i po LB RES 820 1540 08 Xo i fee 4 Using the iMac G5 screw tool or a Phillips 2 and 2 screwdriver remove the two fan cover screws Lift the fan cover off the midplane and set the fan cover aside Midplane Assembly iMac G5 17 inch Take Apart 5 Locate the black video cable next to the fans Using a Phillips 2 screw Remove the two screws and set them aside Pull up on the black tab to disconnect the cable Flip the cable back so it is out of the way Sp a we i k Kor US A nd 4 Using a Phillips 2 screwdriver remove six screws that attach t
24. sure the connector is completely in the socket Note that USB plugs can only work one way up and if you try them upside down they won t slide together properly Go on to the next step 3 Does your keyboard work now Yes Problem solved No Unplug your keyboard and plug it into another USB slot on the back of your iMac Does it work now Yes Replace the logic board No Unplug your keyboard and plug your mouse into the port the keyboard just occupied Go on to step 4 4 Does your mouse work now Yes Replace the keyboard No Replace the logic board My keys are sticky or slow to respond 1 Try a known good keyboard 2 Open System Preferences Click on the keyboard and mouse icon Adjust the key repeat speed and delay until repeat rate 3 Replace the keyboard 46 iMac G5 17 inch Troubleshooting Symptom Charts Symptom Charts When I type strange characters appear on the screen 1 Qr GEL m GOES s Je Depending on your iMac s settings a simple keystroke can change your keyboard from English to Japanese This can result in some pretty funny characters showing up when you type To switch to the US keyboard Open System Preferences Click on the International icon Click on the Input Menu near the top of the screen Scroll down the list and uncheck any non US keyboard layouts Close the System Preferences Try typing a few characters Did is solve the problem Yes Problem solved No Rep
25. ticking or whining noise when it s on The sound may vary depending upon screen brightness or processor load 1 Determine that this noise is related to the computer by removing and shutting down all other devices in the vicinity of the computer that could be causing a sound 2 Determine if this is a power supply noise With the iMac G5 on and running adjust the screen brightness by pressing the F14 and F15 keys on the keyboard Does the noise change in loudness when adjusting the brightness Yes The volume changes when the brightness changes the noise may be related to the power supply Replace the power supply No If the volume does not change when the brightness changes the noise is not a power supply issue Go on to step 3 Quit all applications and test the computer again Check the volume settings under Sound in System Preferences Heboot the computer and check the computer again oS IL d i9 If the noise still doesn t go away contact Apple Technical Support 24 iMac G5 17 inch Troubleshooting oymptom Charts No Video The computer will turn on and there is no picture or color on the display The boot chime the fan and hard drive activity can be heard 1 Refer to the iMac G5 Repair Extension Program for video and power issues mentioned at the beginning of this chapter 2 Check if the computer is sleeping Press the space bar to wake the computer from sleep mode 3 Did the computer wake from sleep Yes
26. 0 0 6 9 009 00 ee 090 0990 919 9 9 0 0 9 9 oo ooo s umm mm nre wm a a a a 47 2 5 574 0 5 9 9 9 o9 E n eee ww v o v ee rd drive Lower the hard drive Parallel ATA Hard Drive iMac G5 17 inch Take Apart 4 Replace the three hard drive screws d 3 6 952059 d iid werd Py I i f if i i B b l 1 M pe M fee 4 D I EB sy yy d D ee LET VN V x 20 li T BH ei 3 ay by 2 x wo EA PE ss i e S zi mL 5 Before replacing the back cover tuck the black video cable into the space next to the hard drive fiecare E wi ISAQ A 26 iMac G5 17 inch Take Apart Parallel ATA Hard Drive Optical Drive SEM DOE viaa ce e e 09 0 A DOO DOO M SERO wee ee eee er 519 e ac e e er 20 1 OCC k eo ste es m 4 lt 1 ne v T Optical Drive Use the screwdriver provided or a Phillips 2 screwdriver preferably with a magnetized tip e Screw tray or equivalent to hold the screws Preliminary Steps Before you begin remove the back cover Part Location Note The education models do not have an optical drive nee gt kane e a ONAA BP 4 A aS AVA du CN el DA E m Ga ey J O60 4 a h Jes NEUE TRANI 7 Vr d ii x e Ab MA VA 4 J m Ch Y A I u 2 OAT XA E pe Ne eae
27. Can you insert a disc now Yes Problem solved No Replace the optical drive If this doesn t solve the problem go on to the next step Replace the logic board Optical disc constantly ejects 1 gt So N I GM Disconnect all peripheral devices especially the mouse in cases where the disc is constantly ejecting Try cleaning the disc If it is dirty or scratched it may not mount Try a different disc Boot from Apple Hardware Test hold down the C key at startup or boot from the system install CD use Startup Manager hold down the Option key at startup Perform a clean install with the CD that came with the computer Heseat the optical drive Replace the optical drive Replace the miplane assembly iMac G5 17 inch Troubleshooting 35 Fan Sound Loud fan noise coming from inside the computer The grill on the bottom of the iMac G5 lets a trio of fans draw cool air into the system Advanced thermal software spins the fans fast or slow as needed passing the heated air through a slit on the back cover As the system usage increases the fans will adjust their speed using advanced thermal software to meet the cooling needs of the system Accumulating dust can obstruct the flow of air through the system causing the fans to run faster than normal In severe cases the system may overheat and unexpectedly shut down Under normal conditions rotating fans will make a slight hum that varies in relationship wit
28. F I MM se UU at ror me p gt lt MNMNMNMBMNMNMNNMNMNMNMBMBNMNMNNMMNMMNMNM 114 iMac G5 17 inch Take Apart Midplane Assembly 7 Replace the AirPort Extreme card Remove the AirPort antenna cable by pulling the tab from the opening on the AirPort Extreme guide rails Vag fe 2 deo c Rete g 8 Slide the AirPort Extreme card into the slot until it clicks into place Connect the AirPort antenna cable to the AirPort Extreme card Midplane Assembly iMac G5 17 inch Take Apart 9 Lower the power supply into the midplane 10 Connect the black power supply connector and tighten the three captive screws turning them to the right ms TS denti RAE e t A J n 9 NN ide S M jJ HUE 7 QUNM Pra ne a 74 j Ju ps m a e M P F UM M m Cte a E 4 tui m ues e da B raei i gt yok T ARCU T emt 9 116 iMac G5 17 inch Take Apart Midplane Assembly 4 Replace the six case screws The shorter screws attach along the top 5 Locate the inverter board that you set aside 6 Connect the white connector on the inverter board to the main board Route this cable around the silver post as shown Caution Be careful not to bend the pins or prick Midplane Assembly iMac G5 17 inch Take Apart your fingers on the pins located next to the white connector 118 iMac G5 17 inch Take Apart Midplane Assembly 7 As you lower the
29. G Re Spec E da CRY gt tz T i Z3 Ee a ae ee Midplane Assembly No Optical iMac G5 17 inch Take Apart 7 Turn the middle case screw to the left about five revolutions This step prepares the back cover to be installed and secured 148 iMac G5 17 inch Take Apart Midplane Assembly No Optical Logic Board Logic Board Tools Phillips 2 screwdriver Torx 10 flat blade Torx 6 Flat blade screwdriver Screw tray or equivalent to hold the screws Preliminary Steps Before you begin remove the following Back cover Optical drive Inverter Fan cover Memory Part Location S m E APLE COMPUTER INC er n Fay ua rw zu e m fr V e C gt mi 666 666 9 78 a iMac G5 17 inch Take Apart Removing the Logic Board 1 Atthe top of the logic board near the fan disconnect the two fan connectors with brown and gray wires and the two hard drive connectors black cables 150 iMac G5 17 inch Take Apart Logic Board 3 Disconnect the hard drive thermal sensor near the memory slots from the logic board Leave the other end of the thermal sensor attached to the hard drive 4 Using a T 8 screwdriver disconnect the two fan duct screws and lift the duct off the logic board Note These two screws are longer than the other silver screws securing the logic board to the midplane chassis ZW e 7s 7 i TiTa o os Oy
30. I 4 v A J a A a 5 fh fm emm y or AE ELE NN 4 L mais baa Dres iym gt Eme Br Od m E pe VADER acc oe ee EU urs Midplane Assembly No Optical 4 Replace the three hard drive screws 4 HIE it 30295 33 LONE 0 A rl Be i s iT ittedt ii tet dtes 2T ott lt SLITS 2195319 AIP T LM iiw LTT LIA 1 A r t 3 lA i tiy d ARA b gt 1 m TI vw 5 s 7 3 ES 08 P d i p E i 4 LJ r 1 1 A LL 000t 4 Reconnect the video cable and replace the two video cable screws Tuck the video cable into the area next to the fan and hard drive Midplane Assembly No Optical CTS COMPUTES INC iiit ONES v EN seq E dez Tad Fat SLIG a jas Ul a ip E Sah e y r MN dez ed LI id z v 1 iMac G5 17 inch Take Apart 5 Replace the memory module s by lining up the notch on the module with the notch on the slot 6 Press firmly on the memory module until it clicks into place Use your thumb and index finger to push the module into the slot cre xk i T px agita CT Inc om ae la 72 d Li P F I MM se UU at ror me p gt lt MNMNMNMBMNMNMNNMNMNMNMBMBNMNMNNMMNMMNMNM 142 iMac G5 17 inch Take Apart Midplane Assembly No Optical 7 Lower the power supply into the midplane g 8 Connect the black power supply connector and tighten the three captive scr
31. Midplane Chassis Tools Required Torx T10 screwdriver preferably with a magnetized tip Screw tray or something equivalent to hold the screws Preliminary Steps Before you begin remove the following e Back cover e Midplane assembly e Upper fans e Logic board e AirPort Extreme antenna cable e Microphone cable e Speaker set e Lower fan 220 iMac G5 17 inch Take Apart Midplane Chassis Part Location Midplane Chassis iMac G5 17 inch Take Apart Removing the Midplane Chassis 1 Remove the three T10 screws from the copper heatpad Set the heatpad aside z f 4 v Y ty 222 iMac G5 17 inch Take Apart Midplane Chassis 3 Onthe other side of the chassis note that the midplane chassis includes the mesh tape that borders the hard drive area Midplane Chassis iMac G5 17 inch Take Apart Replacing the Midplane Chassis 1 Transfer the copper heatpad to the replacement chassis Replace the screws Replacement Note Before installing the logic board refer to the Logic Board procedure to clean the copper heatpad and apply new thermal grease Heplace the lower fan Replace the microphone cable Replace the speaker set Replace the AirPort Extreme antenna cable Replace the logic board Heplace the upper fans pee AW GE ZEE cox CO WS Replace the midplane assembly in the back cover 224 iMac G5 17 inch Take Apart Midplane Chassis un Ka Q 3 D
32. Mig pr az ai Le E 4 VN 6 9 9 9 9 E C O08 h c 006660609 9 oe o 9 6 ah A E te ete ete Q DEE 9 0 0 DETE E E 9 6 Patet et SN aa 945 9 9 6 49 Sut he Se e e ut efetefaf a etat iMac G5 17 inch Take Apart Important Things to Know Note These instructions cover the iMac G5 17 inch models The models may look slightly different from one shown in the illustration however the following procedure applies to both models 1 The replacement power supply has an ambient light sensor attached with two plastic rivets If your computer doesn t have an ambient light sensor see next step remove the ambient light sensor from the replacement power supply e y 3 9154 U osc a cose css oe e os oe E Sa gt gt Ss gt c o Ss e e eo we c o o e o o 0 0 0 0 0 0 0 070 0 0 0 0 Q G 7 eo 60 0 606686 9 297996609 680 8 9 0 9 Poo e 0oo0e0e000 70 9 9 0 666686 6 4 peste 06 0 0 08 7 4 Sa 20 t f DOO t J b e 60600606004 5 o 83 e ee 0 eo0 0000 gt e e T e o O0 6u OOOO O O O 000o ec 00000900S 5 wa o 7 0806 O 0 0 06 e 0 0 00 G 0 00 00 0e 0 051500 2006 0 3 9 9 0 8200006006 006 066 0 00 9 e 9 4 e 9 o o o e o e 0 0 0 650 0000 00oo0000 00 0 06 eS 2 6 8 689 60 8 8 6 0 6 0 0 9 0 6 0 0 080698 8 00 d T 600000000
33. NI 4 Screw Charts 232 iMac G5 17 inch Take Apart Screw Charts iMac G5 17 inch Take Apart Service Source Troubleshooting iMac G5 17 1nch 2004 Apple Computer Inc All rights reserved General Information iMac G5 Repair Extension Program REP for Video and Power Issues Apple has announced the iMac G5 Repair Extension Program REP for Video and Power Issues that covers first generation 17 inch and 20 inch iMac G5 models that have video or power related symptoms as a result of a specific component failure Instructions and CompTIA Codes to use specifically for repairs covered under the iMac G5 HEP for Video and Power symptoms are provided in this section Overview The iMac G5 REP for Video and Power Issues covers first generation 17 inch and 20 inch iMac G5 models that exhibit one of the following video or power related symptoms Scrambled or distorted video No video No power NOTE Only the Non PFC power supplies sold in Canada Japan and the U S are eligible for coverage under the iMac G5 REP for Video and Power Issues The universal power supplies used in Asia Pac and Europe are not affected by the issues covered under this program Non PFC power supplies can only be used in certain countries Canada Japan and the U S they support only 100 VAC 120 VAC Universal power supplies can be used worldwide they support 100 VAC 240 VAC The program c
34. OP OF 620 1540 08 eo cot e vacate Se Heras ae e ee eo un ata meser eS elereleverecerecere rere eo 0 o 0 SESCA shee e v LE M 4 XE s d le J hd 3 T E 6 Locate the inverter to display panel cable connector 54 iMac G5 17 inch Take Apart 7 Release the cable from the clip Disconnect the cable connector km HF ERAI E M l rl ee re E MM CDL DU H o EODD DDR a9 9 9 9 DTP Lee e w DO K gt 3 D t D D Inverter iMac G5 17 inch Take Apart 5 Liftthe inverter straight up to disconnect the inverter board 6 Disconnect the white connector circled below by pulling it straight up Lift the inverter out of the computer 56 iMac G5 17 inch Take Apart Inverter 7 Turn over the inverter as shown Using your fingers or a flat blade screwdriver carefully remove the gray plastic inverter cover by gently prying the tabs circled below away from the board Set the plastic cover aside x a J d m e ES T y 4 dd b EL su van 8 This cover will be attached to the replacement inverter board Inverter iMac G5 17 inch Take Apart 9 Return the inverter board to Apple in the packaging provided 58 iMac G5 17 inch Take Apart Inverter Replacing the Inverter 1 Remove the replacement inverter from its packaging 2 Locate
35. TAT ETTE Loosen the three captive power supply screws circled below by turning them to the left The screws are captive they will not come out of the power supply mB A E Hii x Jj d j am 20 v f 2 11 Va 1 4 T 1 CHE te e ye Sine n w Lm t Pan i Pi d P4 Y A BLU ni i LB di nm 72 iMac G5 17 inch Take Apart Power Supply Power Supply 4 Turn the middle case screw to the right about five revolutions This releases a screw clamp that holds the power supply in the display bezel assembly 5 Disconnect the power supply connector with a flat blade screwdriver Loosen the connector enough so that you can remove it with your fingers iMac G5 17 inch Take Apart 6 Pull the power supply cable out of the connector by rocking it back and forth with your hands and pulling it toward the power supply p 7 Tilt up the power supply until it clears the edge of the main circuit board Lift it out of the computer and set it aside 74 iMac G5 17 inch Take Apart Power Supply 8 Return this power supply to Apple in the packaging provided Power Supply iMac G5 17 inch Take Apart Replacing Power Supply 1 Remove the replacement power supply from its packaging Note If your computer does not use an ambient light sensor remove the ambient light sensor that is riveted to the front of the power supply Refer to Important Things to Know at the beginning of this section
36. Ud N m v rw Su Uff m E a expo nee LIE a LINK LE08700 XMIT a cerie LEDBTOI Fa I nae TUEL L RGN EURIA N T IN CPP EET EE pie E F ETE ENE KERNE pe am 10 Carefully disconnect the Bluetooth antenna from the Bluetooth board Set the Bluetooth board aside EA p pa a Y n a aao x c TL LA d we ae L Q AN 154 iMac G5 17 inch Take Apart Logic Board 11 Disconnect the three connectors near the bottom left corner of the midplane These cables connect to the speakers microphone and the fan Note Pull on the connector not the cables 12 Using a T 10 screwdriver remove six silver logic board screws and with a Phillips 2 screwdriver remove the two brass screws in the bottom right and left corners of the logic board Note The numbers are for replacement order disregard for take apart Logic Board iMac G5 17 inch Take Apart 13 Carefully lift the logic board out of the midplane chassis Do not flex the board as you remove it from the chassis or you may jeopardize the thermal interface between the heatsink and the processor 14 Look on the back of the logic board for the light pipe If you are replacing the board remove the light pipe Attach this light pipe to the gasket on the replacement board 15 If you don t see the light pipe on the back of the logic board it may be stuck in the chassis sho
37. an iMac product is currently covered by an Apple warranty or extended service agreement create the Mail In Repair in the usual manner OUT OF WARRANT Y REPAIRS Until further notice Apple asks that service providers select the Mark for Review checkbox on all out of warranty Mail In repairs created for iMac products eligible for coverage under this repair extension program Latin America Latin America service providers should order parts for this repair extension program in the usual manner More information concerning the iMac G5 REP for Video and Power Issues is available in the Repair Extension Programs section of the Apple Authorized Service Programs Manual Canada Europe US Complete information concerning the iMac G5 Repair Extension Program is available in the Repair Extension Programs section of the Service Programs Manual http www info apple com kbnum n500 123 General Information iMac G5 17 inch Troubleshooting 5 Serial Number Location The iMac G5 serial number is located on the bottom of the computer stand foot Note If the back cover is replaced copy the serial number from the original back cover to the blank label that comes with the replacement back cover Attach the new label to the replacement back cover 6 iMac G5 17 inch Troubleshooting General Information Diagnostic LEDs The iMac G5 has built in diagnostic LEDs shown below on the main logic board that can help you to troubleshoot the comput
38. clip approximately 1 4 inch Caution When the clip is raised the fan becomes loose and could fall Be sure to support the fan during removal and installation Fa ci FEL SC A r4 e P LE as Se JS 192 iMac G5 17 inch Take Apart Lower Fan 3 Remove the fan from the chassis iMac G5 17 inch Take Apart Lower Fan Replacing the Lower Fan 1 Before installing the replacement fan make sure the fan housing includes e rectangular gasket surrounding the fan opening e mesh tape joining the gasket and the fan housing e a spacer sponge centered over the mesh tape 2 With the midplane assembly positioned over the edge of the table and the fan clip raised align the side pegs on the fan with the channels on the clip Slide in the fan and press down on the clip so it locks onto the raised pegs on the side of the fan housing 194 iMac G5 17 inch Take Apart Lower Fan 3 Replace the speaker set 4 Replace the midplane 5 Replace the back cover Lower Fan iMac G5 17 inch Take Apart AirPort Extreme Card Holder Tools Required Torx T6 screwdriver preferably with a magnetized tip e Screw tray or something equivalent to hold the screws Preliminary Steps Before you begin remove the following e Back cover e AirPort Extreme Card Part Location mi A iia Cim V iod b i T 196 iMac G5 17 inch Take Apart AirPort Extreme Card Holder Removing the AirPort Extreme Card
39. for turning the subpixel on or off There are typically millions of these subpixels on an LCD display For example the LCD panel used in the Apple Cinema HD display is made up of 2 3 million pixels and 6 9 million red green and blue subpixels Occasionally a transistor does not work perfectly which may result in the affected subpixel being turned on bright or turned off dark With the millions of subpixels on a display it is quite possible to have a low number of faulty transistors on an LCD Therefore a certain number of subpixel anomalies is considered acceptable Rejecting all but perfect LCD panels would significantly increase the retail price for products using LCD displays These factors apply to all manufacturers using LCD technology not just Apple products To determine whether or not the display has an acceptable number of pixel anomalies follow the steps below 1 Setthe display image to one of the following colors all white display all red display all green display or all blue display 2 Using a jewelers loupe pocket microscope or other magnifying device identify and count each subpixel anomaly e Bright subpixel anomaly subpixel that is always on e Dark subpixel anomaly subpixel that is always off 3 Important Check the number of subpixel anomalies with the following chart LCD Size Acceptable Number of Subpixel Replace the Display inches Anomalies Combination Bright Dark Combination 17
40. increases decreases in relation to processor usage As the fans increase their speed to cool the system the sound level will increase Launch the Activity Monitor application included with Mac OS X in the Utilities folder to determine whether the noise corresponds with heavy usage of the CPU Does fan activity increase decrease with the CPU Usage graph in Activity Monitor Yes As the system CPU usage increases the fans will adjust their speed using advanced thermal software to meet the cooling needs of the system As the fans 36 iMac G5 17 inch Troubleshooting Symptom Charts increase their speed to cool the system the sound level will increase This is normal operation and none of your fans require replacement Refer to the Heatsink Cleaning Procedure that follows to determine whether dust accumulating in the heatsink cooling fins may be causing the fans to run faster than normal No If the fan activity does not coincide with CPU usage the sound you re hearing may not be fan activity Go to the Next Step 4 The normal functioning of the hard drive and optical drive will generate additional whirring and scratching noises that may be audible We can isolate these noises by booting the computer to the iMac G5 Install Mac OS X Install Disc 1 Place the disc in the drive and restart your machine holding down the C key as the machine starts up Once at the Installer window choose Open Disk Utility from the Installer Menu
41. pipe 2 Grasping the outer ring of the light pipe pull it straight off the connector 174 iMac G5 17 inch Take Apart Light Pipe with Gasket Replacing the Light Pipe with Gasket 1 Peel the adhesive backing off of the narrower end of the light pipe 2 Note the small plastic pin on the outer ring of the light pipe Position the light pipe over the logic board so that the pin aligns with the hole in the logic board Light Pipe with Gasket iMac G5 17 inch Take Apart 3 Press the light pipe with gasket into place BE oon ATA X WAT rM eee Amt Ped 4 Replace the midplane 5 Replace the back cover 176 iMac G5 17 inch Take Apart Light Pipe with Gasket Microphone Cable Tools Required e Needlenose pliers Preliminary Steps Before you begin remove the following e Back cover e Midplane e Light pipe Part Location E D oa gt vo 5 F 9e 70 0 56 a 96 9 9 5e 9 e 9 C Os v ee 96 a P4 PL e e 7 45 5 Microphone Cable iMac G5 17 inch Take Apart Removing the Microphone Cable 1 From the top of the logic board at the bottom of the port bank use a needlenose pliers to disconnect the two narrowest cable connectors fan and microphone 2 Locate the longer fan connector 178 iMac G5 17 inch Take Apart Microphone Cable 3 Place the midplane upright Holding the other cables aside route the fan cable and connector throu
42. power button as before power on the iMac G5 Does the iMac G5 start up now 22 iMac G5 17 inch Troubleshooting Symptom Charts Symptom Charts 13 14 Yes The hard drive needs to be replaced No Go to the next step When pressing the internal power button to power on the computer does LED 2 come on momentarily or not at all Momentarily The logic board has detected 12v but the power supply cannot maintain it Your power supply needs to be replaced Not at all Your logic board needs to be replaced If the computer will ONLY start up from the internal power but will not power on from the power button on the back cover the back cover may need to be replaced Unplug the computer and remove the back cover WIth the back cover removed plug the power cord back in Touch and hold an insulated screwdriver to the two contact points shown below Note The picture below shows the contact points on the iMac G5 20 inch computer The contact points are in the same location on the iMac G5 17 inch computer Does your computer start up when holding your screwdriver to these two contact points Yes This shows that the power button switch is working correctly The back cover should be replaced No This indicates that the power button switch is not working correctly The logic board should be replaced iMac G5 17 inch Troubleshooting 23 Loud buzzing ticking or whining noise The computer may make a loud buzzing
43. procedure for these removal instructions NE uu o m n 4 aang sy y e E MAY eu y ccm Cy vnm ev ZH e futu amp T7 5 NP amp iS Oo Am 1 af F Ni 1 AN P AA d Um n oed ETR AANS clo RA marec Ting my E 9 9 9903 B4 4 h tvtcencontgon0s 0 247xittontnos 040220 9999 848 68 C cee ese ee eS o 4 0 4 4 4 ete cio eo octet eee elec ole 9 9 0 0 0 9 0 9 9 9 5 5 o ots ee coc o0 1 9 949494949 49 5449 ST PT eT ete ete be hehe Unete eet he e eee eto 0075 75909494049 9 9 9 9 9 ettet etra et 20502250 i a rere re Hae e a SESSE Midplane Assembly iMac G5 17 inch Take Apart 4 Remove the three hard drive screws Set the screws aside 9 We a amp Er S Gd vO Qr p oy t9 QS ur zs IS ESSE d a Ms UM Cuna 5 s 121 eon TO yeeeeetts Tra LT Lee egeaasgeie ELFL THUEE SEs A i S UI 5 Carefully lift the hard drive straight up about one inch and disconnect the black cable from the white connector on the hard drive Note Leave the other end of the cable attached to the logic board 102 iMac G5 17 inch Take Apart Midplane Assembly 6 Using your fingers or a flat blade screwdriver disconnect the drive data cable and power cable from the hard drive Lift the hard drive up and out of the midplane assembly m iy A ees iiv VAT y Y mur ERAL eget SER
44. the Hard Drive 70 R d EM mrs g amp jos nav 573 o Qr 0 1g i amp tse e LESE esr eon eon Ot 2 o m 6660066 go 5 g t6 6U6U06 046066 ul mi EL D TIL NIMM on SS Ms csose i 3 me Screw Locators iMac G5 17 inch Views 7 To Access the Display Bezel Part 1 Jeux oan SKUASKOTI Cisr ALLEE I H NAANA ORR ARR SER RRR AR ORT a a ca a an E NN EN a m LILA LLL LOE LILLIE MAANEN AA A ATEI AE MINNIE ANANN INON N NAE A AI INUINUISININ INN TINI INS INSINSEINSINSENINS N RAPA AAR AR RR RODR RRA CEN ES CEN S EN EN EEL OILED OOOO ORE AUN UNUS SIOMPRSNSPIReOMPRIYSTS ANUNCIAN IN UIN AN SUSAN UIN ANS INSEN IN E r 89 0600 OTRE O ONN INNEN O QUA UN NUUS gt i a ee c non oo Q 56 aaa U 6 o ed ede e eA 9 ZO wanna E co o n Nica Ti nn CONS me NU WANN AHAB NUNG NUS RA Aer IN UN SN o U 97 00n0 5 6 8en 69u 5ye9c PICS QOO ONO OOO OO NON EOE ONIN OLEE IPSE OLN LOL SC Qc ES Co mA SNGPCAmNn 75 00007v920Toco e n y Lm VERRE goon t Screw Locators 8 iMac G5 17 inch Views To Access the Display Bezel Part 2 T AE Loy APPLE COMPUTER Screw Locators iMac G5 17 inch Views 9 10 iMac G5 17 inch Views ETTIIDID qtsecceceseseoess Screw Locators dplane Assembly Part 2 i To Access the M SWISS DBETLUTERERE IA
45. the gray plastic cover you set aside Inverter iMac G5 17 inch Take Apart 3 Install the plastic cover on the replacement inverter board Gently squeeze the board near each tab circled until all five tabs snap onto the board 4 Connect the white connector on the inverter board to the midplane board The connector is keyed which means it can connect only one way Route this cable around the silver post to the right of the cable Important If the connector is not inserted correctly there will be no video on the display 60 iMac G5 17 inch Take Apart Inverter Inverter 5 As you lower the inverter into place connect the black connector to the pins on the board Use the tall silver pins as a guide to align the inverter Important Make sure the connector mates with the pins Double check that it s connected REED X AF a L 6 Replace the inverter screw 922 6665 iMac G5 17 inch Take Apart 4 Reconnect the inverter to display panel cable Important The connector is keyed it fits together only one way LA 7 CEE AE A 3 e eco te 6 49 005 5 pev 0 9 0 0 0 0 6 0 0 0 0 0 0 0 9 S eo e c c c c MSS elelefeleleIl ae soe dese 9 DON e s r 1 42 DODGE 9 9 9 Sehe Tadatagecagaeeeagecececntteees XII e e oe te PEPER 29 SN EA 5 Secure the connector under the metal tab d 62 iMac G5 17 inch Take Apart Inverter 6 Locate t
46. the two outer power supply screws by turning them to the left Note screws are captive they cannot be removed Midplane Assembly 106 iMac G5 17 inch Take Apart 15 Disconnect the power supply cable by pressing the connector release tab and by prying apart the connector with a flat blade screwdriver 16 Pull the power supply cable out of the connector Note The cable is attached to the power supply Midplane Assembly iMac G5 17 inch Take Apart 17 Tilt up the power supply until it clears the edge of the main circuit board Lift it out of the midplane and set it aside Important Return the midplane to Apple in the packaging provided Midplane Assembly 108 iMac G5 17 inch Take Apart Replacing the Midplane Assembly 1 Remove the replacement midplane from its packaging x gt amp oon m co ro sv Shera A uu ax A i Midplane Assembly iMac G5 17 inch Take Apart 3 Make sure that the black video cable is tucked into the groove on the bezel as shown A cutout on the midplane chassis lines up with the groove on the display bezel assembly housing 4 Lower the midplane into the display bezel assembly housing Use the tab to lower and adjust the midplane into the housing As you lower the midplane pull the inverter cable through the opening in the chassis 110 iMac G5 17 inch Take Apart Midplane Assembly 5 Locate the hard drive Before lowering the hard drive
47. to 20 up to 8 5 or more 7 or more 9 or more 4 fthe number of subpixel anomalies exceeds the acceptable number listed in the chart replace the LCD panel 5 If the number of subpixel anomalies is acceptable explain to the customer that the pixel anomalies are within specifications and no repair is necessary Important Do not release the specifications to customers Instead inform them that a certain number of subpixel anomalies is considered acceptable and these factors apply to all manufacturers using LCD technology not just Apple products 30 iMac G5 17 inch Troubleshooting oymptom Charts Hard Drive In a hard drive failure the computer fails to boot to the desktop and may display a flashing question mark or an alternating question mark and Mac OS face o a folder 1 Hestart the computer with the Apple Hardware Test AHT disc that came with the computer Run the Quick Extended test Does the Apple Hardware Test test pass Yes Run Disk repair from the Install CD that came with the computer No Replace the component indicated by Apple Hardware Test go on to the next step Does the computer start up properly now Yes Problem resolved No Reinstall system software Go on to the next step Does the computer start up properly now Yes Problem resolved No Replace the hard drive Does the computer work now Yes Problem resolved No Replace the logic board System hangs during normal startu
48. 4 LI Ev m 9 9 TTC EO ILLI 48 iMac G5 17 inch Take Apart Fans Upper 3 Tuck the video cable into the space between the fan and the hard drive e 4 Lower the larger fan into the chassis lining up the screws with the screw holes Caution Move the fan cable from the smaller fan out from under the larger fan as you lower the fan into the chassis Tighten the two fan screws E m i gt x x 0 A Ay A RAR A A A A AQ RRA A RX RAT RRA A Fans Upper iMac G5 17 inch Take Apart 5 Route the fan cable under the black cable Connect the fan cable to the logic board Q E 4 T E tA zn EJ UT w l 6 Replace the two fan cover screws The larger screw attaches on the left Note Make sure the pull tab at the top of the case is sticking up as shown 922 6661 6669 922 7 Replace the back cover Fans Upper 50 iMac G5 17 inch Take Apart Inverter Inverter Tools Required e Phillips 2 screwdriver preferably with a magnetized tip e Screw tray or something equivalent to hold the screws Preliminary Steps Before you begin remove the back cover Part Location Se os Hd aig 4 iene te te Ve co y di ON i elie SUN N ins oe ee Ms Hi MEN e xi one o CARTS Um iMac G5 17 inch Take Apart Removing the Inverter 1 To access the inverter assembly other service modules have to be remove
49. 858 for more networking information Replace the AirPort card Replace the AirPort antenna Replace the logic board iMac G5 17 inch Troubleshooting 41 My AirPort signal seems to be very week 1 Check your antenna If the AirPort antenna is not plugged in all the way you may have very short AirPort range 2 Remove the back cover Reconnect the antenna cable to the AirPort card Press the antenna connector firmly to make sure it s fully connected to the iMac Replace the cover and reconnect the power cord 3 Try connecting to your wireless access point now Did your reception improve Yes It looks like the AirPort antenna had not been plugged in all the way You should be ready to go wireless now No It continues like your antenna is plugged in properly and your AirPort card is recognized However there are a number of other things that could cause issues with wireless networking Refer to Knowledge Base document 106858 for more networking information 4 Replace the AirPort card 5 Replace the AirPort antenna 6 Replace the logic board 42 iMac G5 17 inch Troubleshooting oymptom Charts Speakers I don t hear sound from the speakers 1 Press the F5 button on your keyboard It has a sound icon on it Do you hear sound now Yes It looks like your volume was muted When this happens again just press the F4 and F5 keys to regulate your volume No Are there any external microphones speakers or headphon
50. Bins BEA T ER B V tia iMac G5 17 inch Take Apart Removing the Optical Drive 1 Ground yourself Touch the metal surface as shown below on the inside of the computer to discharge any static electricity Warning Always discharge static electricity before you touch any parts or install any components inside the computer To avoid generating static electricity do not walk around the room until you have finished installing the part and closed the computer 28 iMac G5 17 inch Take Apart Optical Drive T Geto eax E Sid i ee 2 o E s 0 m mn z gt ut E EA ACIER r Locate the optical drive in the top left corner 2 I l pus z Q a C lt m C H O O 5 o S 3 q O n o LO D 5 a O hs SWEZIKOOT Chet HELENA 34 1 7 at t Using a Phillips 2 screwdriver remove the three optical dr Set the screws aside 4 Optical Drive Optical Drive 5 Pull the optical drive tab straight up and then to the right Set the optical drive aside 30 iMac G5 17 inch Take Apart Replacing the Optical Drive 1 Note A microfoam shim is included with the replacement optical drive and should be installed using the instructions included below The microfoam shim will prevent optical media from ejecting out of the system and dropping to the desktop Only one microfoam insert should be used per system The shim part
51. Holder 1 Remove the two identical T6 screws from the top of the card holder se 3 mS 2A ye Sie E E Ese Aten s pe JEBasiorao ree 9201 LT z z EL PI oo a 1 i Fa 5 PR f 2510 Se 10 eee CLE a s _ 8 pz F ae e x a N de GJ 2 eaw i NI A i he aa Pipi eat peli tog L 751 X al aad aad ad M AJ J802 s SMU S E LEN RE LN RN RN LN RN um w LN RN 2 Tilt up the holder and remove the AirPort antenna 3 Remove the AirPort Card holder from the computer assembly AirPort Extreme Card Holder iMac G5 17 inch Take Apart Replacing the AirPort Extreme Card Holder 1 Route the AirPort antenna cable into the holder e FLITOO LE LJ A I Ll o z Chasioreoreo ANGI Kyat So ys n9 SS LUNS rigidi Mh chiese 91 Vos le bac Dum ies LN Fn E SHU o E LN RE LN RN XN LN RN UIN ow LN AN Li ph cu p Me DA ve v RAJ IHANAN airina uh PLA IM ast wen M WI ANE 3 Replace the AirPort Extreme Card 4 Replace the back cover 198 iMac G5 17 inch Take Apart AirPort Extreme Card Holder Modem Board Modem Board Tools Required Torx T6 screwdriver preferably with a magnetized tip e Screw tray or something equivalent to hold the screws Preliminary Steps Before you begin remove the following e Back cover e AirPort Extreme Card e AirPort Extreme Card holder Part Location iMac G5 17 inch Take Apart
52. Houte the three cable connectors through the chassis opening as follows e thick speaker connector first e narrow microphone cable connector next e narrowest fan cable connector last 8 Connect the three connectors 9 Replace the light pipe 10 Replace the midplane 11 Replace the back cover 190 iMac G5 17 inch Take Apart Speaker Set Lower Fan Tools Required e Flat blade screwdriver Preliminary Steps Before you begin remove the following e Back cover e Midplane e Speaker set Part Location i 4 E ab z a 7 oS 4 VE Li LAG S S Ni sf rA e gt E j A s 2 V 0 06050059561 e i 050505250506 0 5 0 o eeeeseces se 60 6 060 6 eeseeeoe es e eeee ss amp n 0 SS SS SS amp SS amp ee EN ece 6 9 o v See Ge oe 6 6 o 9 8 9 43 46 4 4 amp 6 e o6 amp o w ee 4 6 9 eo O w amp amp amp 0o 9 9 4 4 9 4 99 Lower Fan iMac G5 17 inch Take Apart Removing the Lower Fan 1 Position the midplane assembly at the edge of a table so the fan cable dangles and is not pinched 2 Locate the locking clip on the top of the fan housing While supporting the fan housing use a flat blade screwdriver to raise up the
53. Location Front Bezel iMac G5 17 inch Take Apart Removing the Display Bezel With all preliminary steps performed the display bezel is the part that remains Note The display bezel includes the captive screw light pipe gasket and drive felt 212 iMac G5 17 inch Take Apart Front Bezel Replacing the Front Bezel 1 Before installing the LCD panel and reassembling the computer make sure the display bezel is clean and free of dust and any foreign matter 2 Install the microfoam shim if it s not installed Refer to the Microfoam Shim topic in this chapter 3 Replace the LCD panel 4 Replace the midplane 5 Replace the back cover Front Bezel iMac G5 17 inch Take Apart AirPort Extreme Antenna Cable Tools Required Torx T10 screwdriver preferably with a magnetized tip Screw tray or something equivalent to hold the screw Preliminary Steps Before you begin remove the following e Back cover e Optical drive e Inverter e Fan cover e Memory Logic board Part Location 6 214 iMac G5 17 inch Take Apart AirPort Extreme Antenna Cable Removing the AirPort Extreme Antenna Cable 1 Locate the pull tab at the top of the computer Pull the tab up to remove the midplane assembly from the display bezel Pull the cable in the top left corner down through the opening in the midplane Set the midplane assembly on the work surface 2 Note the routing of the AirPort antenna c
54. Note Effective today these power supply replacements will be excluded from Service Excellence measurement in applicable regions In addition all first generation iMac G5 power supplies are no longer available as Do It Yourself DIY parts Warning Use caution when handling failed electronic components and make sure to wash your hands afterwards iMac G5 17 inch Repair Extension Program 8 Special CompTIA Codes Apple has created the following two CompTIA Codes to use for repairs on iMac products eligible for coverage under the iMac G5 REP for Video and Power Issues e Use CompTIA Code 560 iMac G5 MLB Power Supply REP when replacing a logic board whether or not the iMac is covered by warranty or an extended service agreement e Use CompTIA Code 660 iMac G5 MLB Power Supply REP when replacing a power supply whether or not the iMac is covered by warranty or an extended service agreement If it s necessary to replace both the logic board and power supply use both CompTIA Codes European IMCs For repairs covered under the iMac G5 REP for Video and Power Issues IMCs in Europe must order logic boards as stock parts using the part numbers listed above To receive credit for the covered logic boards ordered as stock parts IMCs must request an RMA number from the SPS team and return the defective parts to Apple with the RMA number Japan Service providers in Japan who create a Mail In Repair for iMac products eligible for cov
55. S Qa B A pr J 1 JECEY US ong gt A EN t fe t i er gt in Wo ICE LUE M EU J od ET t n AAP N 0 0 E D 6 B 8 9 0 0 9 9 0594565694 S 51 61 5 9 9 9 0 0 0 0 0 559 59 9 59555 6 0 0 0 05 tutt tum eme memes e s s s s o e e s carcasa a a o e a HY eese e 0 8 e 0 0 DODGERS Midplane Assembly iMac G5 17 inch Take Apart 8 Rotate the computer to the right so the memory is in the position shown below 9 Torelease the memory from its slot push down on the two side latches Then pull the memory module out of the slot Repeat this step if you have a second memory module a h E D Abs P E Co B TE 10 Locate the AirPort Extreme card m b Wn NE Ke 3 exams dto Bed o EM RC meu d a among A 2 s Nom E e j Y BE ee 0 0 9 9 9 26 o9 9 eee P P P 4 39 9 3 eee ee o e ee ee ee eee eee Bee eee eee ef Ped ff 9708 FT Phe OHHH EO eee ee 00 0 0 0 o 0 0 6 0 6 7 5 9 8 0 8 c 9 4 B P B BN 4 9 9 ee ieee aretara ea e a ete ete COLE TEISIIN esent entree deinen coute en eere tete oe de is ere te Ta P Tete te Tet Tee 104 iMac G5 17 inch Take Apart Midplane Assembly 11 Disconnect the antenna cable from the end of the installed AirPort Extreme card Midplane Assembly iMac G5 17 inch Take Apart 13 Reconnect the antenna cable to the hole on the AirPort card guide These 14 Loosen
56. Service Source Views iMac GS 17 inch 2005 Apple Computer Inc All rights reserved iMac G5 17 inch Back Cover 076 1113 Non PFC 076 1114 PFC Cable Hard Drive Sensor wr 922 6790 E i Cable Hard Drive Data PATA 922 6791 Cable Hard Drive Data PATA Speakers 922 6788 ea Cable Hard Drive Power PATA 922 6792 Light Pipe w Gasket Cable Hard Drive Power SATA 922 6797 D 922 6789 es J Kit U F EL it Upper Fan 076 1183 Cover Inverter eee c d Cover Heatsink G5 922 6805 Inverter w o Cover 661 3294 an SS Duct Air Deflector Hard Drive 922 6798 Card Modem Soft 922 6492 SDRAM 661 3286 256 MB DDR 400 661 3287 512 MB DDR 400 661 3288 1 0 GB DDR 400 Logic Board 661 3597 1 8 GHz 661 3596 1 6 GHz 661 3595 1 6 GHz No optical Education Power Supply 661 3290 PFC Optical Drive 661 3272 Super Drive ER 661 3271 Combo Drive 661 3342 40 GB PATA Enn Lower 661 3341 80 GB SATA 022 6787 661 3340 160 GB SATA 661 3347 250 GB SATA Fan Cover AirPort Card 661 3045 076 1104 AirPort Card Holder Chassis ee 922 6828 AirPort Antenna 922 6793 BlueTooth Card 922 6871 BlueTooth Antenna Panel w Brackets 076 1179 661 3598 Microfoam shim Location only item not shown 922 7671 Front Bezel w o Display 922 6795 w o Optical Slot 922 6796 w Optical Slot iMac G5 17 inch iMac G5 17 inch Views 1 Screw Matrix and Part N
57. able through the cable guides tape and mesh sponge pads on the left side of the midplane chassis eoe0e0002255 5 J LARIE E E O A gt 6 S amp vr We Aw A o 7 m Ma a a cet of e ecoce gt amp o o 95 2 060 AirPort Extreme Antenna Cable iMac G5 17 inch Take Apart 3 Starting at the plug end of the AirPort antenna release the cable from the cable guides and tape 603 41 82 FOXCONN 4 Release the cable from the remaining cable guide and from where it is sandwiched between the mesh sponge pads Remove the T10 screw 216 iMac G5 17 inch Take Apart AirPort Extreme Antenna Cable 5 Route the cable through the corner opening in the midplane chassis 6 Note that the AirPort antenna cable includes the attached board AirPort Extreme Antenna Cable iMac G5 17 inch Take Apart Replacing the AirPort Extreme Antenna Cable 1 Route the antenna through the corner opening in the chassis and replace the screw first 2 Route the antenna cable through the mesh pads cable guides and tape 3 Replace the midplane chassis inside the display bezel 4 Replace the logic board 218 iMac G5 17 inch Take Apart AirPort Extreme Antenna Cable Replace the memory Heplace the fan cover Heplace the inverter Replace the optical drive B9 see c2 OP dM Replace the back cover AirPort Extreme Antenna Cable iMac G5 17 inch Take Apart
58. ac G5 20 only applies to units sold in US Canada Japan 661 3351 Power Supply Non PFC iMac G5 17 only applies to units sold in US Canada Japan Effective September 12 2005 these power supply replacements will be excluded from Service Excellence measurement in applicable regions In addition all first generation iMac G5 power supplies are no longer available as Do It Yourself DIY parts The parts listed above are the only approved logic board and power supply replacements for repairs covered under the iMac G5 REP for Video and Power Issues Apple will charge service accounts for any parts ordered for repairs involving units eligible for the iMac G5 HEP for Video and Power Issues that are not related to this program and are not covered by warranty or an extended AppleCare service agreement Special CompTIA Codes Apple has created the following two CompTIA Codes to use for repairs on iMac products eligible for coverage under the iMac G5 REP for Video and Power Issues e Use CompTIA Code 560 iMac G5 MLB Power Supply REP when replacing a logic board whether or not the iMac is covered by warranty or an extended service agreement e Use CompTIA Code 660 iMac G5 MLB Power Supply REP when replacing a power supply whether or not the iMac is covered by warranty or an extended service agreement If it s necessary to replace both the logic board and power supply use both CompTIA Codes iMac G5 17 inch Repair Extension Progra
59. ace the AirPort Extreme Card 6 Replace the back cover 202 iMac G5 17 inch Take Apart pe MYTA E xc of fasolozzo M _ WYdYC 2aN E ES o 10 i6 xir 3 I LES TI TC ems zz E X EE AE ITI UG ijo la Ly e M eh Modem Board Bluetooth Board Tools Required Torx T6 screwdriver preferably with a magnetized tip e Screw tray or something equivalent to hold the screws Preliminary Steps Before you begin remove the following e Back cover e AirPort Extreme Card Part Location TON Tine A nire lr t uci E 1 t 1 zej m T Bluetooth Board iMac G5 17 inch Take Apart Removing the Bluetooth Board 1 Locate the Bluetooth board 2 Remove the two identical T6 screws gt T Oz ENLO Or J g PE i IT S Waar a x M ae p du 2 X Lr Led ias Le 33 2 V ton A4 i te ey vn y Z 2 m y Ve af ae IM MM AJM 9 33 A h G GG AX 3 M MPO OG IP T we w Apr 3 NEU Ico u ud ad d a n X Az hd n e i g ows rr a e rm t m rd g Li 1 i pas Da r y tS id i A f ph Aen rte th A i di E a A vate A Ae RA 35 w 7 T gm E p eM P E Ys c 4 E 8 952 se s z eid E DO 7 3 9 DD ud e E Ber dh el sett ae tts ents ses SW v r ce F AM I p et y Mist f p E Puy amp k Vno
60. an Cover iMac G5 17 inch Take Apart Replacing the Fan Cover 1 Remove the replacement fan cover from its packaging 4 Replace the two fan cover screws The larger screw attaches on the left Note Make sure the pull tab is sticking up as shown 42 iMac G5 17 inch Take Apart Fan Cover Fans Upper Tools Required Phillips 42 screwdriver or Torx 8 some models have torx screws on the fan e Screw tray or equivalent to hold the screws Preliminary Steps Before you begin remove the back cover and the fan cover Part Location ia IY od T En 2 D Gin UT f Tid 5 ioe Bic T ZA Y T e E e e 14 ar CH EP ite LEE Fans Upper iMac G5 17 inch Take Apart Removing the Fans 1 Depending on the type of screws present Torx 8 or Phillips 42 loosen the two fan screws Note You don t have to remove the screws from the rubber grommets to remove the fan just loosen the screws 2 Disconnect the fan cable from the connector on the logic board Pull on the black connector not on the cable Route the fan cable under the black cable as shown Fans Upper 44 iMac G5 17 inch Take Apart 3 Liftthe fan out of the computer 4 If your are replacing the fan remove the screws from the fan grommets Using a screwdriver push the fan screws out of the grommets and set them aside Use these screws on the replacement fan 5 Goon to the ne
61. and be sure to wash your hands afterwards iMac G5 17 inch Repair Extension Program 7 6 If the logic board has bulged or vented capacitors replace the logic board 7 Ifthe logic board has bulged or vented capacitors remove and inspect the power supply Note Affected power supplies are rated for 100 127VAC and are known as non PFC power supplies These power supplies were placed into iMac G5 systems destined for the US Canada and Japan 8 Turn over the power supply to view the label Affected power supplies have e an Apple part number of 614 0293 or 614 0296 shown below e an AC Input of 100 127V 50 60Hz listed below the 614 xxxx part number Note A power supply failure may leave a visible residue on the rear cover logic board and the chassis The residue does not affect the operation of the iMac G5 and can be left in place If desired the residue on the rear cover can usually be removed using a lightly dampened disposable cloth Be sure to thoroughly dry the rear cover before reinstalling it amp A 100 127V 50 60Hz 60A DC OUTPUT H 23V 4A 5 1V 9 8A 12 0V 6 5A 24 0V 1 8A OR 20 0Vs 3 5 1Vsb 1 5A a TOTAL 180W MAX f amp X amp 15 X 180W MADE IN CHINA aid a see so ew re a_u OK wacarter UU gt 9 Ifthe power supply fits this description replace the power supply as well Proceed to the next topic Special CompTIA Codes for repair coverage information
62. ard drive up about one inch and disconnect the black cable from the white connector Note Leave the other end of the cable attached to the board Midplane Assembly No Optical iMac G5 17 inch Take Apart 7 Using your fingers disconnect the drive data cable and power cable from the hard drive Lift the hard drive up and out of the midplane assembly e A ra ee A la r ae P B A a r 4 A 4 AS XI wee a x MS a J T a aed z x gt To azn T Ve SF 134 iMac G5 17 inch Take Apart Midplane Assembly No Optical 9 Rotate the computer to the left so the memory is in the position shown below 10 To release the memory from its slot push down on the two side latches Then pull the memory module out of the slot Repeat this step if you have a second memory module Woks nt sap AY m AX P AUD E icon oe P m vd R ulha SW WAM 11 Locate the power supply at the bottom of the computer b Z a LE im D A a lt T p Midplane Assembly No Optical iMac G5 17 inch Take Apart 12 Loosen the two outer screws on the power supply by turning them to the left Note EE Z0 56 5 HF iv 2 i E gr 3 iN Jar 8 dL P 3 13 Disconnect the power supply cable by pressing the connector release tab and using a wide flat blade screwdriver to pry apart the connector 136 iMac G5 17 inch Take Apart Midplan
63. arts iMac G5 17 inch Troubleshooting 43 I hear sound out of only one speaker 1 Are there any external microphones speakers or headphones plugged into the iMac Yes Disconnect any external microphones speakers or headphones Do you hear audio from both of the built in speakers on your iMac Yes Good It looks like the built in speakers are working properly This may be an issue with the microphone speakers or headphones that were plugged into your iMac Please work with the manufacturer to troubleshoot this issue No Go to step 2 No Check your speaker balance If your balance setting was set to the left or right speaker you would only hear sound from one speaker Go to step 2 2 Open System Preferences System Preferences can be found under the Apple menu 3 Click once on the sound icon 4 Click once on the Output tab 5 Make sure your balance setting is in the middle After adjusting the audio balance do you have audio from both speakers now Yes It looks like the issue was the balance was not set properly No Replace the logic board Mouse My mouse doesn t work at all 1 Try using the mouse on another surface Non reflective opaque surfaces without repetitive patterns work best The surface should be clean but not shiny Unplug any USB devices plugged into your computer other than the Apple Mouse and Apple Keyboard Try another known good USB mouse Replace the mouse Replace the l
64. be Sr ee eat s i 7 Turn the middle case screw to the right about five revolutions This releases a screw clamp that holds the power supply in the display bezel assembly 130 iMac G5 17 inch Take Apart Midplane Assembly No Optical 8 Locate the pull tab at the top of the computer Pull the tab up to release the midplane assembly from the display bezel Pull the inverter cable in the top left corner down through the opening in the midplane Set the midplane aside 9 Important Remove the highlighted parts from the midplane hard drive memory power supply and the AirPort Extreme card if it is installed before retuning the it to Apple Continue with the procedure for removal instructions Midplane Assembly No Optical iMac G5 17 inch Take Apart VW OE Qe ee Ger eel PASE Fe A A dE c x NL y rr M NO A f aZ AS b 1 7 5 a Puri ra n 10 Locate the hard drive in the top right corner B w 4 Remove the three hard drive screws Set the screws aside err Sa ema n ty vi 1 REC RT S Ere SHIT A a m a 2 22 42945 gites H on a 10 e RAP DEL DAETA 11 KLIT m nin 44 We S40 0480 AUN Sade bene 0968 PUR P Bi OJ L TY 7 NI 341 w tr Midplane Assembly No Optical 132 iMac G5 17 inch Take Apart 5 Locate the black cable and white connector on the end of the hard drive 6 Carefully lift the h
65. cate the black video cable at the top of the computer LANAN JR E E r LIII SE I 99 boo C2 2 0 9 9 0 0 0 0 070705 5 5 7 9 9 5 5 9 9 9 9 0 9 9 9 0 959 594 9 9 9 9 9 9 mmm m nn nre a a a a a un a Oe ee oe ELIT 4 Remove the two screws on the video cable and set them aside Pull up on the black tab to disconnect the cable Flip the cable back so it is out of the way 128 iMac G5 17 inch Take Apart Midplane Assembly No Optical 4 Using the Phillips screwdriver remove six screws that attach the midplane to the display panel housing Three short screws are located along the top of the case and the longer screws attach on the midplane board Set the screws aside p 922 6662 Oo m 3screws across top Ng UIUI do pic UT S i m he 922 6666 Xd prre mM ve ON ROCK XX ee ste A OQ 2e gt e e 9 132 OF o SOc tenet we V eee OD OCC LCOROCO E eeetetetetete ott atat tutae Setete tetetete noe ae vete et Po Se e See osesoreros Midplane Assembly No Optical iMac G5 17 inch Take Apart 6 Loosen the captive power supply screw circled below by turning it to the left Loosen the screw until it is flush with the top of the power supply The screw is captive it will not come out Note You do not need to remove the power supply yet T LI vam way oY 2 77 ae e Lo E 7 A a fy p lw DTP 3 Malisa NM HA B 2 M
66. chapter 28 iMac G5 17 inch Troubleshooting oymptom Charts Symptom Charts Display is tinted another color 1 Refer to the iMac G5 Repair Extension Program mentioned at the beginning of this chapter Heset the parameter RAM Press Command Option P R keys When you keep all the keys held down you will hear the startup chime over and over again about every ten seconds until you let go After you hear the second chime you can let go of the keys Does the computer display video after successfully resetting the computers PRAM Yes Problem resolved Restart the computer from the Apple menu and make sure the computer is starting up properly No Continue to the next step Check for external video Connect an external monitor to the mini VGA port Do you have external video now Yes Replace the display panel and then go on to step 4 No Replace the logic board After replacing the display panel Do you have video now Yes Problem solved No Replace the logic board iMac G5 17 inch Troubleshooting 29 When displaying a single color over the screen area the LCD panel shows one or more pixels that are not properly lit Active matrix LCD technology uses rows and columns of addressable locations pixels that render text and images on screen Each pixel location has three separate subpixels red green and blue that allow the image to be rendered in full color Each subpixel has a corresponding transistor responsible
67. computer is turned on and the power supply is working correctly e LED 3 indicates that the computer and the LCD display are communicating This LED will be ON when the computer is turned on and video signal is being generated e LED 4 lights only if the computer detects an over temperature condition This LED will be OFF when the computer is turned on and running at the correct temperature General Information iMac G5 17 inch Troubleshooting 11 Internal Power Button To the left of the diagnostic LEDs are two buttons The top button is the internal power button the lower button is the SMU button described later in this chapter The internal power button gives you the ability to power on the computer with the back cover off the computer TET 8 gt Shs 4 I 5 5104 5124 O a R 1022 ee gt e 48321 PATA ACT AXLUTILLA ki C5165 ae nue ea D pag vsese uer e T e e fac lt lt e wv a j Mal ii CHI A Le NT LL TEE CLEE d s Bn at ta 13 09 E N Lt 255 zsen CEN IET T C10 o e cue ma CRo m C231 a CU 3 i MU NTE T um EE 3 ay rans T mo EM XO CE E AR eire eC Gs vin besos y TIT CRU CLK fam yw EA oe o REODS R6402 TY NB CLK ee ee ue 1540 08 MINN 17 D nuum Us 12 iMac G5 17 inch Troubleshooting General Information To power the computer on with the back cover off 1 Fir
68. d This procedure will show you how to remove and replace each module As you remove each module set it aside along with the screws for that module 2 Important Ground yourself Touch the metal surface as shown below on the inside of the computer to discharge any static electricity Warning Always discharge static electricity before you touch any parts or install any components inside the computer To avoid generating static electricity do not walk around the room until you have finished installing the part and closed the computer ur 52 iMac G5 17 inch Take Apart Inverter 3 Locate the optical drive SER ig j Aid etae 9 eee ee eae eee cee 9 P ee P B eee 4 v c V ar 6 e e e 0 0 c o asa itt ME 124 yweiuniron or LOU e e A e Pol d 95999599949 Inverter iMac G5 17 inch Take Apart 5 Pull the optical drive tab straight up and then to the right Set the optical drive aside F e eeee eeetett seeeetete reote tent seeeetetettte peveceg rece ree seseoraceceagedee j ffetereeeteo ni Ceepeetetete teet Ady eteeorecercececercree 7 oeeetteeteecteeetateto0g y eereetezerececesecceecses J eevceeetereeceeseeeeregetce j ttteetetoteteeeocteeoaacateoe y ROO 000 f teeeetteetteee nto0 4 STEHT HT teeeetceceete c c eg SEEN Inverter DO e e oe TMMO Sotet 2 D o e DON RNS bos
69. d Restore disc in your drive and we re going to try a process that involves restarting your computer Follow the instructions below 1 Leave the iMac Install and Restore disc in the drive 2 Go to the Apple menu and choose Shut Down 3 Once the computer has shut down hold down the OPTION button and press the power button to start the computer up again 4 You will see a blue background a curly arrow and a right arrow and between them is a button with the name of your hard drive Wait about thirty seconds to see if another button comes up with the name iMac Software Install and Restore 5 After waiting about thirty seconds choose the button with your hard drive s name and click the right arrow button 6 The computer will start up normally Open your browser and go back to the Apple support page at www apple com support 2 Which of these error messages do you see e Unknown Error 2147352480 See Knowledge Base article 25480 and 25750 for more information e Buffer underrun error See Knowledge Base article 25480 and 25750 for more Symptom Charts iMac G5 17 inch Troubleshooting 33 information e Unknown Error If you see Unknown Error without 2147352480 you will want to see Knowledge Base article 152224 for more information e None of these alert messages Is your disc drive the one inside the iMac or is it attached to the iMac by a USB or FireWire cable Inside the Mac Go on to s
70. d capacitors the logic board should be replaced If the logic board has bulged or vented capacitors the power supply should also be inspected If the power supply has a specific part number and AC input value it should also be replaced General Information iMac G5 17 inch Troubleshooting 3 Replacement Parts If a logic board and or power supply must be replaced order on a like for like basis only The following parts are eligible to be replaced under this repair extension program e 661 3595 Board Logic 1 6GHz No Optical iMac G5 17 e 661 3596 Board Logic 1 6GHz w Optical iMac G5 17 e 661 3597 Board Logic 1 8GHz w SuperDrive iMac G5 17 e 661 3599 Board Logic 1 8GHz w SuperDrive iMac G5 20 661 3350 Power Supply Non PFC iMac G5 20 only applies to units sold in US Canada Japan 661 3351 Power Supply Non PFC iMac G5 17 only applies to units sold in US Canada Japan Effective September 12 2005 these power supply replacements will be excluded from Service Excellence measurement in applicable regions In addition all first generation iMac G5 power supplies are no longer available as Do It Yourself DIY parts The parts listed above are the only approved logic board and power supply replacements for repairs covered under the iMac G5 REP for Video and Power Issues Apple will charge service accounts for any parts ordered for repairs involving units eligible for the iMac G5 HEP for Video and Pow
71. drive carrier 5 Replace the main logic board 40 iMac G5 17 inch Troubleshooting Symptom Charts Symptom Charts AirPort Not able to connect wirelessly with AirPort 1 2 3 10 11 From the Apple menu choose About this Mac Click on More Info System Profiler should open In System Profiler in the column on the left look under Hardware for a line called AirPort Card Select that line Does the section to the right say No Information Found Yes It looks like your computer doesn t realize it has an AirPort card installed Go on to step 5 No It looks like your iMac recognizes that it has an AirPort Card installed Go on to step 6 Remove the back cover and reseat the AirPort Extreme card Check System Profiler again to see if the computer sees the AirPort card Does it recognize the card now Yes Problem solved No Replace the AirPort Extreme card Now that we know your iMac recognizes your AirPort card check your antenna If the AirPort antenna is not plugged in all the way you may have very short AirPort range Remove the back cover Reconnect the antenna cable to the AirPort card Press the antenna connector firmly to make sure it s fully connected to the iMac You should be ready to go wireless now If your antenna is plugged in properly and your AirPort card is recognized there are a number of other things that could cause issues with wireless networking Refer to Knowledge Base document 106
72. e rm we APPL M COMPUTER 1 du m JS MB 4 DETI ATASE woo Y M on he VT UN aieh ar y TA 4 og ta ea Q LJ i dint ts quee bp e E TOM J p a n an a ae iM aes A JI au MU iL I w a5 Sesma my 2 Yeoeo ae cones Ale u BERNIAT 16 Replace the fan duct and the two fan duct screws Note These two screws are longer than the other silver screws securing the logic board to the midplane chassis L ray I 1 2 Y Y 60000 ooo 000000 nr oor o o mm m iom L a 0 9 yn b MeSH 1 Li e LJ o9 Teog 3 anton 00 M o an fj d x U M LJ LJ w m o lt 3 B S22Ry 3 Se 20r 164 iMac G5 17 inch Take Apart Logic Board Logic Board 17 Rotate the computer to the right Connect the hard drive thermal sensor to the logic board Make sure the other end of the thermal sensor attaches to the hard drive i LJ Lo b gnig n Dat SA T RS z oe 19 Y Za z M caves C n V iow T US NT f 4 AG WA SPINA Ns N M TS gs bot RA F 34d 18 Replace the memory iMac G5 17 inch Take Apart 19 Connect the video cable to the logic board and replace the two screws Y A 922 6659 gt 166 iMac G5 17 inch Take Apart Logic Board 20 Reconnect the hard drive and fan cables to the log
73. e Assembly No Optical 14 Pull the power supply cable out of the connector Tilt up the power supply and lift it out of the midplane Set the power supply aside Important Return the midplane to Apple in the packaging provided Midplane Assembly No Optical iMac G5 17 inch Take Apart Replacement the Midplane No Optical 1 Remove the replacement midplane from its packaging C lt F 4 E E C UU m 1 la APPLE COMPUTER INC zpos 2 Position the display bezel assembly with the display face down on a clean soft cloth 138 iMac G5 17 inch Take Apart Midplane Assembly No Optical 3 Make sure that the black video cable is tucked into the groove on the bezel as shown A cutout on the midplane chassis lines up with the groove on the display bezel assembly housing 4 Lowerthe midplane into the display bezel assembly housing Use the tab to lower and adjust the midplane into the housing As you lower the midplane pull the inverter cable through the opening in the chassis Midplane Assembly No Optical iMac G5 17 inch Take Apart 5 Locate the hard drive Connect the drive data cable and power cable to the hard drive Lower the hard drive into place on the midplane 140 iMac G5 17 inch Take Apart Gs 6 os pg zu y EP 4 f i cC NOI b 4 gt szor i a E qp i r5 at E Fj LI e I 4 M l as fa o er AR I bd
74. e SPS team and return the defective parts to Apple with the RMA number Japan Service providers in Japan who create a Mail In Repair for iMac products eligible for coverage under the iMac G5 REP for Video and Power Issues should ALWAYS select CompTIA Code 660 iMac G5 MLB Power Supply REP in GSX whether the repair is related to the logic board power supply or both WARRANTY REPAIRS If an iMac product is currently covered by an Apple warranty or extended service agreement create the Mail In Repair in the usual manner OUT OF WARRANTY REPAIRS Until further notice Apple asks that service providers select the Mark for Review checkbox on all out of warranty Mail In repairs created for iMac products eligible for coverage under this repair extension program Latin America Latin America service providers should order parts for this repair extension program in the usual manner More information concerning the iMac G5 REP for Video and Power Issues is available in the Repair Extension Programs section of the Apple Authorized Service Programs Manual Canada Europe US iMac G5 17 inch Repair Extension Program 15
75. e back cover 38 iMac G5 17 inch Take Apart Microfoam Shim Fan Cover Tools Required Use the screwdriver provided and a Phillips 2 screwdriver preferably with a magnetized tip e Screw tray or equivalent to hold the screws Preliminary Steps Before you begin remove the back cover Part Location Note This fan cover is not present on the education model Fan Cover iMac G5 17 inch Take Apart Removing the Fan Cover 1 Ground yourself Touch the metal surface as shown below on the inside of the computer to discharge any static electricity Warning Always discharge static electricity before you touch any parts or install any components inside the computer To avoid generating static electricity do not walk around the room until you have finished installing the part and closed the computer f s oeo e 2e L ee LA A e 0292S 7 ETATE T d A aeoe D woe ccc ooo o le y CC 09909 S o 1 3 OAL a ee raar DT e 2252 XX 240992 E NOTET S OS eee 40 iMac G5 17 inch Take Apart Fan Cover 2 Locate the fan cover shown below APPLE COMPUTER 2004 i po LB RES 820 1540 08 Xo i 4 Using a Phillips 2 for the screw on the left and a Phillips 2 for the screw on the right remove the two screws Lift the fan cover off the midplane and set the fan cover aside Js CN Ao VP v TUM C BS Ms Qr a E NT ace a Pg ie my Gee Ste I o opes ires EET F
76. e display and front bezel are offered separately Additional items are included with these service parts Back Cover e Two blank labels are included with the replacement back cover Copy the serial number and Ethernet number off the bottom of the computer s foot and attach the new labels to the bottom of the replacement foot The back cover take apart procedure will show you where to attach the labels Logic Board e Syringe with thermal compound e Alcohol cleaning wipe e A new pre printed Ethernet label is included with the midplane Attach the sticker to the bottom of the computer s foot above the existing label e A blank serial number label is included with the midplane Copy the serial number off the bottom of the computer s foot and attach the new label to the midplane The midplane take apart procedure will show you where to attach the label Do not pull on individual wires when disconnecting a part pull on the connector A screw chart is attached at the end of this document Use the chart to identify screw type and screw locations 4 iMac G5 17 inch Take Apart General Information Removing the Back Cover Tools Use the screwdriver provided or a Phillips 2 screwdriver Procedure 1 Turn your computer off by choosing Shut down from the Apple menu 2 Disconnect all cables and unplug the power cord from your computer Put on your ESD Wrist strap Removing the Back Cover iMac G5 17 inch Take Apart
77. e in a format that can be read by your computer No So no disc will show up on your desktop Go ahead and leave the iMac Software Install and Restore disc in your drive and we re going to try a process that involves restarting your computer Follow the instructions below 1 Leave the iMac Install and Restore disc in the drive 2 Go to the Apple menu and choose Shut Down 3 Once the computer has shut down hold down the OPTION button and press the power button to start the computer up again 4 You will see a blue background a curly arrow and a right arrow and between them is a button with the name of your hard drive Wait about thirty seconds to see if another button comes up with the name iMac Software Install and Restore 5 After waiting about thirty seconds choose the button with your hard drive s name and click the right arrow button 6 The computer will start up normally Open your browser and go back to the Apple support page at www apple com support 2 When you were looking at the button with your hard drive s name on it did a button with the iMac Software Install and Restore ever appear Yes The fact that the disc appeared there means your drive does know that a disc is in it Lets check some system settings to see if they re the reason the discs don t appear 32 iMac G5 17 inch Troubleshooting oymptom Charts No The next thing to check to make sure the computer realizes the drive is there
78. e top may bulge upward In severe cases the top of the capacitor may show signs of electrolyte venting which appears as a small amount of cream colored paste around the top of the capacitor One or both of these symptoms indicates that the capacitor has or will likely fail p ow Lu 10 If the logic board has bulged or vented capacitors replace the logic board as well Refer to the next topic in this section Special CompTIA Codes for repair coverage information iMac G5 17 inch Repair Extension Program 13 Special CompTIA Codes Apple has created the following two CompTIA Codes to use for repairs on iMac products eligible for coverage under the iMac G5 REP for Video and Power Issues e Use CompTIA Code 560 iMac G5 MLB Power Supply REP when replacing a logic board whether or not the iMac is covered by warranty or an extended service agreement e Use CompTIA Code 660 iMac G5 MLB Power Supply REP when replacing a power supply whether or not the iMac is covered by warranty or an extended service agreement If it s necessary to replace both the logic board and power supply use both CompTIA Codes iMac G5 17 inch Repair Extension Program 14 European IMCs For repairs covered under the iMac G5 REP for Video and Power Issues IMCs in Europe must order logic boards as stock parts using the part numbers listed above To receive credit for the covered logic boards ordered as stock parts IMCs must request an RMA number from th
79. er To access these LEDs remove the back cover of the computer 1 Turn your computer off choose Shut Down from the Apple menu If you can t shut it down that way you can turn the computer off by pressing the power button for five seconds 2 After the computer is off disconnect all cables and the power cord from your computer General Information iMac G5 17 inch Troubleshooting 7 3 Place a soft clean towel or cloth on the desk or surface Hold the sides of the computer and slowly lay it down so the screen is flat against the surface and the bottom is toward you 4 Raise the foot and use a Phillips 1 screwdriver to loosen the three screws at the bottom of the computer by turning them completely counterclockwise These are captive screws which means they re not supposed to come all the way out 8 iMac G5 17 inch Troubleshooting General Information 5 As you hold the metal foot tilt the back cover up and lift it away from the computer The back cover with the foot attached should come off easily If it doesn t make sure the screws are turned completely counter clockwise but not too far 6 To protect the computer from electrostatic discharge ground yourself by touching a metal surface inside the computer Warning Always discharge static electricity before you touch any parts or install any components inside the computer Don t walk around the room in socks or bare feet for example until after you
80. er Issues that are not related to this program and are not covered by warranty or an extended AppleCare service agreement Special CompTIA Codes Apple has created the following two CompTIA Codes to use for repairs on iMac products eligible for coverage under the iMac G5 REP for Video and Power Issues e Use CompTIA Code 560 iMac G5 MLB Power Supply REP when replacing a logic board whether or not the iMac is covered by warranty or an extended service agreement e Use CompTIA Code 660 iMac G5 MLB Power Supply REP when replacing a power supply whether or not the iMac is covered by warranty or an extended service agreement If it s necessary to replace both the logic board and power supply use both CompTIA Codes European IMCs For repairs covered under the iMac G5 REP for Video and Power Issues IMCs in Europe must order logic boards as stock parts using the part numbers listed above To receive credit for the covered logic boards ordered as stock parts IMCs must request an RMA number from the SPS team and return the defective parts to Apple with the RMA number 4 iMac G5 17 inch Troubleshooting General Information Japan Service providers in Japan who create a Mail In Repair for iMac products eligible for coverage under the iMac G5 REP for Video and Power Issues should ALWAYS select CompTIA Code 660 iMac G5 MLB Power Supply REP in GSX whether the repair is related to the logic board power supply or both WARRANTY REPAIRS If
81. er back in and press the power button to turn on the computer e Make sure the computer is starting up properly If the computer will ONLY start up from the internal power but will not power on from the power button on the back cover the power button on the back cover may be faulty Go to step 13 No Press the SMU reset button to reset system power management The SMU is the small metal button shown below located below the internal power button A e e ecc pm e eo c oc wl eo wu eo gopor T cocco p 09 ec 99 550602 7 560 eoe p d Pr EL ody or i ec 550999 2e0 ee 909 92 seers 11 After pressing the SMU button press the internal power button again Does the computer start up normally now Yes Press and hold the power button until the machine powers off e Unplug the power cord from the iMac and replace the back cover e Return the computer to the upright position e Plug the in the computer and press the power button to turn on the computer e Make sure the computer is starting up properly If the computer will ONLY start up from the internal power but will not power on from the power button on the back cover this may indicate that the power button on the back cover is faulty Got to step 13 No Go to the next step 12 Unplug the power from the iMac G5 and remove the internal hard drive and set it aside Plug in the iMac G5 and using the Internal
82. erage under the iMac G5 REP for Video and Power Issues should ALWAYS select CompTIA Code 660 iMac G5 MLB Power Supply REP in GSX whether the repair is related to the logic board power supply or both WARRANTY REPAIRS If an iMac product is currently covered by an Apple warranty or extended service agreement create the Mail In Repair in the usual manner OUT OF WARRANTY REPAIRS Until further notice Apple asks that service providers select the Mark for Review checkbox on all out of warranty Mail In repairs created for iMac products eligible for coverage under this repair extension program Latin America Latin America service providers should order parts for this repair extension program in the usual manner More information concerning the iMac G5 REP for Video and Power Issues is available in the Repair Extension Programs section of the Apple Authorized Service Programs Manual Canada Europe US iMac G5 17 inch Repair Extension Program 9 Troubleshooting Power Issues Power Symptoms The affected power supplies are rated for 100VAC 127VAC and were placed in iMac G5 systems destined for the US Canada and Japan Affected power supplies will exhibit one or more of the following e No power to the computer e The computer intermittently shuts down without warning e The computer makes a popping sound followed by no power An odor is detectable Repair Procedure 1 Verify that the system is eligible for the REP program Re
83. ery Replacing the Battery 1 Remove the replacement battery from its packaging 2 Holding the battery positive side up push the battery in the direction of the arrow under the battery clip The battery should slip into place under the clip MEE 3 Replace the AirPort Extreme card Remove the AirPort antenna cable by pulling the tab from the opening on the AirPort Extreme guide rail iMac G5 17 inch Take Apart 4 Slide the AirPort Extreme card into the slot until it clicks into place Connect the AirPort antenna cable to the AirPort Extreme card 90 iMac G5 17 inch Take Apart Battery Midplane Assembly Tools Required Use the screwdriver provided or a Phillips 2 screwdriver preferably with a magnetized tip e Flat blade screwdriver Screw tray or equivalent to hold the screws Preliminary Steps Before you begin remove the back cover Part Location Midplane Assembly iMac G5 17 inch Take Apart Removing the Midplane Assembly 1 To access the midplane assembly you must first remove other service modules This procedure will show you how to remove and replace these modules Note As you remove each module set it aside along with the screws for that module 2 Ground yourself Touch the metal surface as shown below on the inside of the computer to discharge any static electricity Warning Always discharge static electricity before you touch any parts or install any comp
84. es plugged into the iMac If yes go on to step 2 If no go on to step 3 2 Disconnect your external microphones speakers or headphones Do you hear sound now Yes It looks like the built in speakers are working properly Now try plugging in a different set of speakers or headphones Go on to step 4 No Unplug any USB devices you have plugged into your iMac except the mouse and keyboard Do you hear sound now Go on to step 3 3 Unplug any USB devices you have plugged into your iMac except the mouse and keyboard Do you hear sound now Yes It sounds like you may have a USB Audio device plugged into your iMac such as a USB microphone adapter or USB speakers Please work with the manufacturer to troubleshoot this issue No Reset your computer s PRAM Parameter RAM which stores settings for sound and go to step 5 4 With new speakers or headphones plugged in do you have audio Yes It appears that the issue may be with the external microphone speakers or headphones that were plugged into your iMac originally Work with the manufacturer to troubleshoot the speakers or headphones No It looks like there may be something wrong with the audio output port on your iMac Replace the logic board 5 After resetting the PRAM do you hear sound now Yes Test the audio again Open System Preferences and check the Sound icon Make sure the preferences are set correctly Problem resolved No Replace the logic board Symptom Ch
85. ews SWEIZ4930071 Chine o Ni PIEL Il 9 9 9 9 9 0 9 o o o e e e 0 9 e 0 n 9 02 eso e o e o 9 o gt gt gt o O 9 e 9009090090 9 e 900000 009 9 e 00009009 0 J 00900929 9 0 99 9 0 0 9 e 9 9 9 e o o e o e o o o o o AY eoo eze 2 3 e e ee rs 5 Turn the middle case screw to the left about five revolutions This step prepares the back cover to be installed and secured FAAALI D0000 e eeeer D0020 D LL A Y J D 122 iMac G5 17 inch Take Apart Midplane Assembly Midplane Assembly No Optical Tools Required e Phillips 2 screwdriver preferably with a magnetized tip e Flat blade screwdriver e Screw tray or equivalent to hold the screws Preliminary Steps Before you begin remove the cover Part Location A E Drm di Li i rs APR JI ewe we A f i Midplane Assembly No Optical iMac G5 17 inch Take Apart Removing the Midplane No Optical 1 To access the midplane assembly you must first remove other service modules This procedure will show you how to remove and replace these modules Note As you remove each module set it aside along with the screws for that module 2 Ground yourself Touch the metal surface as shown below on the inside of the computer to discharge any static electricity War
86. ews turning them to the right Non CA eS Sk 7 r F SE TIN f 2 ge Hd 1 f em p D y Ma LN S 7 oe 4 b D M pom 1171 ais LSC oy 5 A 4711 aie d E Cy a i Vr Ha E ye Ai Ohi cry 9 Midplane Assembly No Optical iMac G5 17 inch Take Apart 4 Replace the six case screws The shorter screws attach along the top 922 6662 3 screws across top Lu Listed REM OG 9e 4 RR RNAi Tm E oos 5 4 9 4 5 o o e Tto SII COCA Steetetetetete Sere utet e ote ete to oto S Se TT D TO ES TED C RTT 144 iMac G5 17 inch Take Apart Midplane Assembly No Optical 6 Connect the white connector on the inverter board to the main board Route this cable around the silver post as shown Caution Be careful not to bend the pins or prick your fingers on the pins located next to the white connector Midplane Assembly No Optical iMac G5 17 inch Take Apart 7 As you lower the inverter into place connect the black connector to the pins on the board Use the tall silver pins as a guide to align the inverter Important Make sure the connector mates with the pins Double check that it s connected CT NA AF N L 4 Replace the inverter screw 146 iMac G5 17 inch Take Apart Midplane Assembly No Optical 5 Reconnect the inverter to display panel cable Important The connector is keyed it fits together only one way Nd ee E 6B
87. fer to the topic Eligible Products mentioned earlier in this section 2 If the computer is eligible remove the rear cover 3 Affected power supplies are rated for 100 127VAC and are known as non PFC power supplies These power supplies were placed into iMac G5 systems destined for the US Canada and Japan 4 Proceed to the next step iMac G5 17 inch Repair Extension Program 10 5 Remove the power supply Turn over the power supply to view the label Affected power supplies have e an Apple part number of 614 0293 or 614 0296 shown below e an AC Input of 100 127V 50 60Hz listed below the part number Note A power supply failure may leave a visible residue on the rear cover logic board and the chassis The residue does not affect the operation of the iMac G5 and can be left in place If desired the residue on the rear cover can usually be removed using a lightly dampened disposable cloth Be sure to thoroughly dry the rear cover before reinstalling it DATE B0445 A 100 127V 50 60Hz 60A DC OUTPUT H 4A 565A y 24 UV Wd EN OR 20 0Vs a 5 1Vsb 15A u A TOTAL 180W MAX f amp X mE 180W OK MADE IN CHINA amp ji Eee oso XA See ee coc cc ee UM Z445 M7 6 Replace the power supply if it meets the criteria mentioned above Refer to the next topic in this section Special CompTIA Codes for repair coverage information Note Effective today these power supply replacements wil
88. gh the opening in the midplane chassis Microphone Cable iMac G5 17 inch Take Apart 4 Route the microphone cable connector through the midplane chassis opening Important The microphone connector has two pegs To enable routing position the connector so the two pegs point toward the logic board and the flat side of the connector is positioned away from the logic board MM 180 iMac G5 17 inch Take Apart Microphone Cable 5 Note the routing of the microphone cable Peel up the speaker tape and lift up the microphone cable from the speaker channel 6 Slide out the rubber microphone gasket Microphone Cable iMac G5 17 inch Take Apart Replacing the Microphone Cable 1 Secure the microphone cable to the speaker and apply new tape Note A strip of new tape comes with both a replacement microphone cable and a replacement speaker set 2 Route the cable connectors through the chassis opening as follows e microphone cable connector first e narrowest fan cable connector last Connect the connectors to the logic board Replace the light pipe Replace the midplane Qu oce 9 Replace the back cover 182 iMac G5 17 inch Take Apart Microphone Cable Speaker Set Speaker Set Tools Required e Needlenose pliers e Torx T10 screwdriver preferably with a magnetized tip e Flat blade screwdriver e Screw tray or something equivalent to hold the screws Preliminary Steps Before you be
89. gin remove the following e Back cover e Midplane e Light pipe Part Location iMac G5 17 inch Take Apart Removing the Speaker Set 1 Locate the two speakers on the midplane chassis 2 Fromthe top of the logic board at the bottom of the port bank use a needlenose pliers to disconnect the three cable connectors fan microphone and speaker LEDS 701 aoe LLLA BEP oue cere T TII ie TS Peer ops 3 Holding the midplane vertically locate the narrowest fan connector 4 Holding the other cables aside route the fan cable and connector through the opening in the midplane chassis 184 iMac G5 17 inch Take Apart Speaker Set 5 Route the narrower microphone cable connector through the opening in the midplane chassis Note The images below show both sides of the midplane chassis Important The microphone connector has two pegs To enable routing position the connector so the two pegs point toward the logic board and the flat side of the connector is positioned away from the logic board Speaker Set iMac G5 17 inch Take Apart 6 Route the widest speaker cable connector through the midplane chassis opening y Wi 2 p 7 Place the midplane flat on the table and note the single screw securing the speaker to the midplane Remove the screw from the speaker 186 iMac G5 17 inch Take Apart Speaker Set 8 Liftthe speaker off of the chassis stand
90. h their rotational speed and the amount of air that they are moving In addition the normal functioning of the hard drive and optical drive will generate additional whirring and scratching sounds that may be audible All of these sounds are normal and do not indicate a failure with your computer To begin troubleshooting a possible fan issue we need to qualify the sound that you re experiencing 1 Does the sound occur only under specific light heavy usage conditions Yes CPU intensive applications such as iTunes Garage Band DVD Player etc or two or more applications open at once will cause the fans to run at an increased rate making them more noticeable If the sound only occurs when one or more of these applications is running this is normal No If the sound isn t affected by CPU intensive application it may be due to other factors Go on to the next step 2 Is the sound always present or does the sound vary The sound is always present The normal functioning of the hard drive and optical drive will generate additional whirring and scratching noises that may be audible Let s see if this sound is related to one of the components Go to step 4 The sound varies Under normal conditions rotating blowers will make a slight hum that varies in relationship with their rotational speed and the amount of air that they are moving Let s see if this is indeed the case Go to Next Step 3 Are the fans making a normal humming sound that
91. he midplane to the panel housing Three short screws are located in the channel along the top of the case and the longer screws attach to the midplane board Set the screws aside 922 6662 922 6662 IBS Eum aE n nmm mn numum reete tnum 98 iMac G5 17 inch Take Apart Midplane Assembly 5 Locate the power supply at the bottom of the picture below l i make sure to loosen the screw all the way Note The power supply will Biers Ah oJ S8 tn m mE 2 Cab Wee ie e rie nee E NE T pee Ee eo S E easy seem eo auo re Ax D O lu sue a N O N D 2 3 eG ot 2 c O Q is flush with the top of the power supply This screw attaches the power supply to the 6 Loosen the middle power supply screw a captive screw by turning it to the left until it iMac G5 17 inch Take Apart Midplane Assembly 7 Turn the middle case screw to the right about five revolutions This releases the back cover clamp screw 599 gt Oeee6 7 8 Locate the pull tab at the top of the computer Pull the tab up to lift the midplane assembly from the display bezel Push the cable in the top left corner down through the opening in the midplane Set the midplane aside 100 iMac G5 17 inch Take Apart Midplane Assembly 9 Remove the highlighted parts shown below hard drive memory power supply and the AirPort Extreme card before retuning the midplane to Apple Continue with the
92. he optical drive that you set aside Holding the optical drive by the back end near the tab insert the drive at an angle to mate the two white pins and the plastic rectangle with the two holes and notch on the optical drive E E ou N ES Li FS D 7 With your thumb on the tab and your index finger behind the tab push the drive forward and down The optical drive should click into its connector Note If the optical drive won t click into place check that the fan cables are not obstructing the optical drive connector f C UP cy Cy C Uc a a e mc UR C oU C c Co C C vru rete 2000 323000 832982 0060000000002222222 20 e C C C CP C C 9 C C a 0 C9 C9 S Peas 3393 0082221 603992212221 0900999992923322222 90233222609322 2 999092060932202222212 980090009202232222 000000002 amp 9090000920 Inverter iMac G5 17 inch Take Apart o 2 25 o e O 59 2 e ON O mma ER eem Ore 90 0 1 505 0 0 x13355011 Criss HERREN EEG nem Acme UNT aa a e ee a IN AAE ee AY e go SN utm orm orm FEE SY F O OA OLPC AU 0 8A OUO ee LON ENN E OPP ane RAR UA UC RRR ROR RRR UN UA ABUS A Qh e Mae A ee te a CU C PN UIN CUN o C8 y PSI OOO REO Q9 0 1S LONNIE CU TQUE IUS UICUAUAUE NUES UIN ae ee a ee PN F c r p fw cy w a aa ra s ttt Replace the optical drive screw
93. iMac G5 REP for Video and Power Issues covers first generation 17 inch and 20 inch iMac G5 models that exhibit one of the following video or power related symptoms Scrambled or distorted video No video No power NOTE Only the Non PFC power supplies sold in Canada Japan and the U S are eligible for coverage under the iMac G5 REP for Video and Power Issues The universal power supplies used in Asia Pac and Europe are not affected by the issues covered under this program Non PFC power supplies can only be used in certain countries Canada Japan and the U S they support only 100 VAC 120 VAC Universal power supplies can be used worldwide they support 100 VAC 240 VAC The program covers affected iMacs for up to two years from the original date of purchase Apple will continue to evaluate the repair data and will provide further repair extensions as needed iMac G5 17 inch Repair Extension Program 1 Eligible Products The program is available for first generation iMac G5 models that were sold between approximately September 2004 and June 2005 featuring 17 and 20 inch displays with 1 6GHz and 1 8GHz G5 processors 1 The affected iMac G5 computers have serial numbers where the first five 5 digits fall into the ranges noted below W8435xxxxxx W8522XXXXXX QP435xxxxxx QP522xxxxxx CK435xxxxxx CK522XXXxxx YD435xxxxxx YD522XXXXXX Note The iMac G5 REP for Video and Power Issues i
94. ic board 21 Replace the inverter 22 Replace the optical drive 23 Replace the fan cover 24 Replace the back cover Logic Board iMac G5 17 inch Take Apart Bluetooth Antenna Cable Tools Required e Nylon probe tool e Flat blade screwdriver Preliminary Steps Before you begin remove the following e Back cover e Midplane e Bluetooth board Note The graphics in this procedure show the Bluetooth antenna cable on the iMac G5 20 inch however the steps are the same for the iMac G5 17 inch computer Part Location TAP gt Valea way rJ e E diia FE L e are r m De M rr d EN 168 iMac G5 17 inch Take Apart Bluetooth Antenna Cable Removing the Bluetooth Antenna Cable 1 PEN a eA ma CINE ae 2 u aa ee a KERN 2M te MM ee Pee Mi SSSA RENS di EL ER atate Holding the midplane vertical route the Bluetooth antenna cable through the small opening in the chassis z So iMac G5 17 inch Take Apart Bluetooth Antenna Cable 2 Onthe other side of the midplane note the placement of the other end of the Bluetooth antenna cable in its plastic holder 170 iMac G5 17 inch Take Apart Bluetooth Antenna Cable 4 Release the Bluetooth antenna cable from the chassis guides If necessary use a flat blade screwdriver to carefully pry open the guides 5 Near the Bluetooth holder note that the Bluetooth anten
95. ili ern lig 3 Hs ity Te ie TU r y Mm Sa i X vv Di J use fa fad v lt rud g 84 iMac G5 17 inch Take Apart Battery Removing the Battery 1 To access the battery other service modules have to be removed This procedure will show you how to remove and replace each module As you remove each module set it aside along with the screws for that module 2 Important Ground yourself Touch the metal surface as shown below on the inside of the computer to discharge any static electricity Warning Always discharge static electricity before you touch any parts or install any components inside the computer To avoid generating static electricity do not walk around the room until you have finished installing the part and closed the computer Battery iMac G5 17 inch Take Apart 3 Locate the AirPort Extreme card The battery is located below the AirPort Extreme card Note If an AirPort Extreme card is not installed go on to step 7 yd Pm Aye TM ee i qut AES Iur m T g 86 iMac G5 17 inch Take Apart Battery Battery 5 Pullthe tab on the card to remove the card from the AirPort card guide a RAK Ze b At zA 2 D ESA iMac G5 17 inch Take Apart 7 WIth a pencil or other plastic tool push the battery in the direction of the arrow to free the battery from the metal clip ag hf Fi 88 iMac G5 17 inch Take Apart Battery Batt
96. into place connect the drive data cable and the power cable to the hard drive 6 Connect the black cable hard drive thermal sensor to the white connector on end of the hard drive ELI CETT Hind ALa Tom Lt Midplane Assembly iMac G5 17 inch Take Apart 4 Replace the three hard drive screws ws g A 90 TN 10 ol SEQ o Io Qr po t ESN Kd amp uh e 3 Ih ESSE a d TY A each Oo orn E CU l gt 9 4 gt Apple P N 1 922 6668 E 5 Reconnect the video cable and replace the two video cable screws Tuck the video cable into the area next to the fans 112 iMac G5 17 inch Take Apart Midplane Assembly 6 Press the top end of the video cable into the notch on the midplane chassis m n PNSUDSTRTS Os 99 9 s esi feuis eT 1E Mac Ys AN a meer Lu un nini TETIT g sf MILE ea TAT EPET aE ee TT an 486 2 T aah j 4 Replace the fan cover and the two fan cover screws The larger screw attaches on the left Note Make sure the pull tab is sticking up as shown Midplane Assembly iMac G5 17 inch Take Apart 5 Replace the memory module s by lining up the notch on the module with the notch on the slot 6 Press firmly on the memory module until it clicks into place Use your thumb and index finger to push the module into the slot cre xk i T px agita CT Inc om ae la 72 d Li P
97. inverter into place connect the black connector to the pins on the board Use the tall silver pins as a guide to align the inverter Important Make sure the connector mates with the pins Double check that it s connected N7 amp 7 4 Replace the inverter screw Midplane Assembly iMac G5 17 inch Take Apart 5 Reconnect the inverter to display panel cable Important The connector is keyed it fits together only one way v9 v o 9 ee AAA t e oea et e s SSe DOOGOOOOODU XM MOOR etetezetetete tote tetro toten SORS revelers acese Aeae To Rpte SM s T 6 Secure the connector under the metal tab d 120 iMac G5 17 inch Take Apart Midplane Assembly 7 Locate the optical drive that you set aside Holding the optical drive by the back end near the tab insert the drive at an angle to mate the two white pins and the plastic rectangle with the two holes and notch on the optical drive TE 2 N D EWLLVi u US a Lond S 8 With your thumb on the tab and your index finger behind the tab push the drive forward and down The optical drive should click into its connector Note If the optical drive won t click into place check that the fan cables are not obstructing the optical drive connector 0 9090000000000 0000000 amp 00000000002099 Midplane Assembly iMac G5 17 inch Take Apart 4 Replace the three optical drive scr
98. is program see below for the repair OUT OF WARRANT Y REPAIRS Until further notice Apple asks that service providers in all regions that use GSX select the Mark for Review checkbox on all out of warranty Carry In repairs created for iMac products eligible for coverage under this repair extension program In addition it is extremely important that you select the CompTIA Code s created for this program see below for the repair Troubleshooting If a computer falls within the serial number range noted under Eligible Products and exhibits the symptoms noted under Overview inspect the capacitors on the logic board for signs of bulging and or venting If the logic board has bulged or vented capacitors the logic board should be replaced If the logic board has bulged or vented capacitors the power supply should also be inspected If the power supply has a specific part number and AC input value it should also be replaced iMac G5 17 inch Repair Extension Program 3 Replacement Parts If a logic board and or power supply must be replaced order on a like for like basis only The following parts are eligible to be replaced under this repair extension program e 661 3595 Board Logic 1 6GHz No Optical iMac G5 17 e 661 3596 Board Logic 1 6GHz w Optical iMac G5 17 e 661 3597 Board Logic 1 8GHz w SuperDrive iMac G5 17 e 661 3599 Board Logic 1 8GHz w SuperDrive iMac G5 20 661 3350 Power Supply Non PFC iM
99. l be excluded from Service Excellence measurement in applicable regions In addition all first generation iMac G5 power supplies are no longer available as Do It Yourself DIY parts Warning Use caution when handling failed electronic components and be sure to wash your hands afterwards iMac G5 17 inch Repair Extension Program 11 7 While doing the power supply repair inspect the capacitors highlighted below on the logic board looking for signs of bulging and or venting 8 Affected capacitors will have a sign stamped into the top of the capacitor Note Not all capacitors stamped with a sign are faulty so further inspection is required to determine whether one or more of the capacitors are faulty Warning Use caution when handling failed electronic components and make sure to wash your hands afterwards H REY CA RS a eA L Lr zi 1 SX c 1E6 0 Z a C5 0 i ras a ri H pe ET NS qa o Bey jG RS003 f R5005 a a I C5006 tm mi al Villa gt Vii HANG S R4911 R5805 R5627 85633 ch JE D Le r WSPUUm ETEELA exi R5605 w Eri R56169 7 E R5667 C22 p 7W cfe ce ees EE GONE Rese per L LICHE LL Met v en cce T fal P TAI KR A bad iMac G5 17 inch Repair Extension Program 12 9 Failed capacitors will no longer have a flat top and can be identified by signs of bulging shown below and or venting Th
100. lace the keyboard The USB port on my keyboard doesn t work 1 2 Unplug all devises from your keyboard Plug your Apple mouse into the left USB port on your keyboard Does your mouse work when it s plugged into this port Yes Now plug the mouse into the right port Does it work Yes Iry a known good keyboard No Iry a known good mouse to rule out the mouse Then go to step 3 No Try a different mouse or keyboard Now unplug the keyboard from the USB port on the back of the iMac and plug the mouse into the port the keyboard had been in Does the mouse work now Yes Replace the keyboard No It appears that your USB port isn t functioning properly Go on to step 4 Replace the logic board Error Beep s Computer beeps at startup 1 Check that the memory DIMMs are iMac G5 compliant iMac G5 computers work with memory modules DIMMs that meet all of these criteria PC3200 2 5V unbuffered 8 byte nonparity 184 pin 400Mhz DDR SDRAM There are two RAM slots The maximum amount of RAM you can install is 2 GB You can use RAM module sizes of 256 MB 512 MB and 1 GB in either slot DIMMs with any of the following features are not supported in the iMac G5 computer registers or buffers PLLs ECC parity or EDO RAM iMac G5 17 inch Troubleshooting 47 2 Reseat the memory into the slot 3 Replace the memory 4 Replace the logic board USB A USB device doesn t work 1 Please unplug a
101. ll of your USB devices from your iMac except your Apple Keyboard and Apple mouse 2 Now plug your device directly into the back of your iMac Does it work as expected now Yes Your device works when plugged directly into the computer This indicates a conflict with one of the other USB devices You can test by gradually adding your devices back and seeing where the issue occurs then contacting the manufacturer of the device s for assistance No Unplug your device from the iMac and plug the keyboard into the port your device just occupied Is your keyboard still working Yes Your Apple Keyboard works when plugged into the USB port your device was plugged into This points to an issue with your device Please review the documentation that came with your device Install any necessary drivers and contact the manufacturer of your device for assistance No Replace the logic board I see a message saying not enough power to function It appears that this device needs to be plugged into the computer s USB port rather than the keyboard USB port Any USB device connected to the keyboard needs to be either a self powered device a USB device with its own AC power supply or a low power device a device that does not need a large amount of voltage to operate Your device may draw more power than the keyboard can provide 48 iMac G5 17 inch Troubleshooting Symptom Charts Symptom Charts iMac G5 17 inch Troubleshooting 49
102. ly to the specific logic board or power supply issues covered by this program For example if an iMac is taken to an Apple service provider with a cracked display and a component failure eligible under the program Apple will cover the component failure repair but the cost of replacing the cracked display is the customer s responsibility Repair Strategy Hequired service parts for this program are available so that certified technicians may create a repair at an Apple service provider location WARRANTY REPAIRS If an iMac product eligible for this program is currently covered by an Apple warranty or extended service agreement create the repair in the usual manner However it is extremely important that you select the CompTIA Code s created for this program see below for the repair OUT OF WARRANT Y REPAIRS Until further notice Apple asks that service providers in all regions that use GSX select the Mark for Review checkbox on all out of warranty Carry In repairs created for iMac products eligible for coverage under this repair extension program In addition it is extremely important that you select the CompTIA Code s created for this program see below for the repair Troubleshooting If a computer falls within the serial number range noted under Eligible Products and exhibits the symptoms noted under Overview inspect the capacitors on the logic board for signs of bulging and or venting If the logic board has bulged or vente
103. m 4 European IMCs For repairs covered under the iMac G5 REP for Video and Power Issues IMCs in Europe must order logic boards as stock parts using the part numbers listed above To receive credit for the covered logic boards ordered as stock parts IMCs must request an RMA number from the SPS team and return the defective parts to Apple with the RMA number Japan Service providers in Japan who create a Mail In Repair for iMac products eligible for coverage under the iMac G5 REP for Video and Power Issues should ALWAYS select CompTIA Code 660 iMac G5 MLB Power Supply REP in GSX whether the repair is related to the logic board power supply or both WARRANTY REPAIRS If an iMac product is currently covered by an Apple warranty or extended service agreement create the Mail In Repair in the usual manner OUT OF WARRANTY REPAIRS Until further notice Apple asks that service providers select the Mark for Review checkbox on all out of warranty Mail In repairs created for iMac products eligible for coverage under this repair extension program Latin America Latin America service providers should order parts for this repair extension program in the usual manner More information concerning the iMac G5 REP for Video and Power Issues is available in the Repair Extension Programs section of the Apple Authorized Service Programs Manual Canada Europe US iMac G5 17 inch Repair Extension Program 5 Troubleshooting Video Issues
104. n d a a 3 Rotate the computer to the left so the memory is in the position shown below 4 Torelease the memory from its slot push down on the two side latches Then pull the memory module out of the slot Repeat this step if you have a second memory module Important Return the memory to Apple in the packaging provided Jmm rau NNI 6 f d o ur 05 gol FR RRA AAR RA AAR RA Memory DIMMs iMac G5 17 inch Take Apart Replacing the Memory 1 Remove the replacement memory module from its packaging 2 Replace the memory module s by lining up the notch on the module with the notch on the slot 3 Press firmly on the memory module until it clicks into place Use your thumb and index finger to push the module into the slot A t PEERS qu sn Po SPINE Mi 35 BY XU T y TE Y o SM d MMEM Seren eiii nen 12 68 iMac G5 17 inch Take Apart Memory DIMMs Power Supply Power Supply Tools Required Use the screwdriver provided or a Phillips 2 screwdriver preferably with a magnetized tip Flat blade screwdriver Screw tray or equivalent to hold the screws Preliminary Steps Before you begin remove the back cover Part Location N z c w firn Ln il UL N XU T 1 J de MORE ice anil cen i A A Habel D VAM Sc E ASI te j vet AE ay coy Be JS P A owe wr ab x A al 4 b E R e 1l gt EC LJ m E DA b S zm M YI da
105. na cable runs underneath the speaker and fan cables Without straining the cables route the Bluetooth antenna cable under the other two cables to release it from the chassis Bluetooth Antenna Cable iMac G5 17 inch Take Apart Replacing the Bluetooth Antenna Cable 1 Onthe back of the midplane chassis route the Bluetooth antenna cable under the fan and speaker cables 2 If you are replacing the Bluetooth antenna cable with a new one rub away any remaining adhesive on the midplane chassis Peel off the backing on the Bluetooth holder and press the holder onto the chassis 3 Secure the cables in the cable guides on the underside of the chassis Replacement Note If necessary use a flat blade screwdriver to press the cable guides closed over the cables 4 Thread the Bluetooth antenna cable through the small opening in the chassis Am m TWS Wc vu uc ww Connect the Bluetooth antenna to the Bluetooth board Replace the Bluetooth board Replace the midplane p xv Qe xe Replace the back cover 172 iMac G5 17 inch Take Apart Bluetooth Antenna Cable Light Pipe with Gasket Tools Required No tools are required for this procedure Preliminary Steps Before you begin remove the following e Back cover e Midplane Part Location HB TE Light Pipe with Gasket iMac G5 17 inch Take Apart Removing the Light Pipe with Gasket 1 Onthe underside of the midplane chassis locate the light
106. ning Always discharge static electricity before you touch any parts or install any components inside the computer To avoid generating static electricity do not walk around the room until you have finished installing the part and closed the computer 124 iMac G5 17 inch Take Apart Midplane Assembly No Optical 3 Locate the inverter on the left side of the computer L Mie me heer hen Ser waite TERERAA 6 J e o9 99595959 99595959 9 lo ee LED P9499 52 99 55 74 094 a ww vei Oe a a ae a a S ah Mi ME i M gt TS a MA f ak gi La 113 a TES 9 Y x PP e o utu Paa tut utum eum umm nero n a c o o s c e T T 95909495949 9 9 9 95949 59595995959 nn nin ging 79 2e e e ese ele ele e e ere e Midplane Assembly No Optical iMac G5 17 inch Take Apart 5 Release the cable from the clip Disconnect the cable connector 126 iMac G5 17 inch Take Apart Midplane Assembly No Optical 5 Liftthe inverter straight up to disconnect the inverter board 6 Disconnect the white connector circled below on the inverter by pulling it straight up Set the inverter board aside Note Be careful not to prick your fingers on the pins next to the white connector e lm An see le A if PT Abhi nnm 2 s T o gt E Midplane Assembly No Optical iMac G5 17 inch Take Apart 7 Lo
107. not caught under the board 160 iMac G5 17 inch Take Apart Logic Board Logic Board 9 Connect the three cables speakers microphone and lower fan in the bottom left corner of the midplane A 10 Using a T 10 screwdriver replace the logic board screws Install the screws in the numbered sequence shown below starting with the screws nearest the heatsink T T T a ML c FTD I An ee e E m ucl dE i 3 Tas ae x 3 U OF Oeeeoces 5 se mm oe COCeSSC CS CSC CEC cc oe eee gt AKILIA AAJN 9 9 9 9 9 9 4864 686 6666670 6 9 O 6 9 oo a WFO ee ee oe ee eee 9 49 9 9 nn noo Pu att tet ek tet 9 9 9 e eee iMac G5 17 inch Take Apart 11 If present connect the Bluetooth antenna to the Bluetooth board and replace the two T 6 screws Note This graphic shows the Bluetooth board on the iMac G5 20 inch however the board is in the same location on the iMac G5 17 inch computer oe E f V SDF9400 caro 17 invearee e uU Y j e CLR ean um o o mmm iii f UE ey E cope e my atta mm n srephesite BCNS23LA OPT TOU PM Riise 12130 we LHDETS 162 iMac G5 17 inch Take Apart Logic Board 13 Replace the two T 6 modem screws Logic Board iMac G5 17 inch Take Apart 15 Replace the two T 6 screws on the AirPort Card guide attach the AirPort antenna and connect the power supply cabl
108. number is 922 7671 2 Locate the enclosed piece of white microfoam and the two white posts circled on the bezel 3 With the shiny side of the microfoam facing the bezel slide the holes of the microfoam onto the two white posts on the bezel Optical Drive iMac G5 17 inch Take Apart 4 Tuck the mircofoam into place before installing the optical drive 5 Remove the replacement optical drive from its packaging 6 Replace the optical drive in the direction of the arrow lining up the white posts on the bezel with the holes on the optical drive bezel 32 iMac G5 17 inch Take Apart Optical Drive Optical Drive 7 The optical drive will click into place when you push down near the pull tab Note If the optical drive is not seated accurately the optical drive may not function 8 Make sure no microfoam is sticking out of the bezel Note Before reassembling the computer partially insert an optical disc to make sure it inserts smoothly iMac G5 17 inch Take Apart SEE 2S Com EI O a g m Linie ines Ye Yom Ye Yon Toa Yoc yap Low Jer aoe bit ean N Yon Y e cheddar ee ea EY gt gt XR SHO AOD ee RC PR SR VOW Ye YA LPoocieas DA S 59 e Vie E C Yer ROS uoc NY mam OU e ww wow 5 9 M Replace the three optical drive screws 9 Optical Drive 34 iMac G5 17 inch Take Apart Microfoam Shim Microtoam Shim
109. o 9 ooo 9 0 v ve vow wq nnnm e 4 2 e c o a 5 c e o D X X m e o 9 ee o 9 e o o e 9 iMac G5 17 inch Take Apart 9 Replacing the Back Cover 5 Make sure the case is not bowing along the bottom or sides If it is check that the optical drive and cables are seated properly There should be no gaps around the edges when the screws are tightened 6 Position the computer in the upright position Reconnect the power cord and remaining cables Turn on the computer 10 iMac G5 17 inch Take Apart Replacing the Back Cover Serial ATA Hard Drive Tools e Use the screwdriver provided or a Phillips 2 screwdriver preferably with a magnetized tip e Flatblade screwdriver e Screw tray or something equivalent to hold the screws Preliminary Steps Before you begin remove the back cover Part Location A Id eun ee eer er TOM COS T8 Ole CN A A A LS ad c s E 0 o 2s n e EEH peer n M 6 e a to r Aig RE eet et eS Y 3 E sae i ee ee ados Serial ATA Hard Drive iMac G5 17 inch Take Apart Removing the Serial ATA Hard Drive 1 Toaccess the hard drive you must first remove other service modules This procedure will show you how to remove and replace these modules Note As you remove each module set it aside along with the screws for that module 2 Ground you
110. off 9 Without straining the speaker or fan cable use a flat blade screwdriver to carefully lift up the cables from the three cable guides on the underside of the midplane chassis Caution Use the flat blade screwdriver to open the cable guides only enough to slide out the cables Do not over extend the cable guides Speaker Set iMac G5 17 inch Take Apart 10 Remove the two screws at the other speaker 188 iMac G5 17 inch Take Apart Speaker Set 12 Replacement Note If you are replacing the speaker set remove the microphone cable from the speaker and transfer it to the new speaker set To remove the microphone cable e peel up the speaker tape e lift up the microphone cable e slide out the rubber microphone gasket Speaker Set iMac G5 17 inch Take Apart Replacing the Speaker Set 1 Note The speaker set includes the two speakers speaker housing and attached cable and connector 2 Secure the microphone cable to the speaker and apply new tape Note A strip of new tape comes with both a replacement speaker set and a replacement microphone cable 3 Attach the speaker that is closest to the lower fan on the chassis Replace the two screws Route the speaker cable into the cable guides Then route the fan cable on top of it Gently press on the cable guides to ensure that the cables cannot become loose Install the remaining speaker to the chassis Replace the single screw o P ue
111. ogic board My mouse works intermittently the cursor freezes randomly 1 Unplug any USB devices plugged into your computer other than the Apple Mouse and Apple Keyboard Heconnect the USB devices one by one and test your mouse after each to figure out which device is causing the issue Once you have isolated the problem child that isn t playing well with others you will want to contact the manufacturer of that device to see if they have any suggestions or assistance 44 iMac G5 17 inch Troubleshooting oymptom Charts Symptom Charts 3 4 5 Try a known good USB mouse Replace the mouse Replace the logic board The mouse is slow to respond 1 Try putting the mouse on a different surface an opaque surface with no patterns is best 2 Adjust the settings on the mouse Choose Apple menu System Preferences and click Keyboard amp Mouse Click Mouse Drag the Tracking Speed slider to select how fast the pointer moves Drag the Double Click Speed slider to set how fast you have to double click 3 If the mouse still doesn t work insert the iMac Software Install and Restore disc that came with your computer Shut the computer down and then start it up while holding down the letter c on the keyboard Does the mouse work when the computer is started up from this disc 4 Try a known good USB mouse 5 Replace the mouse 6 Replace the logic board Keyboard None of the keys on my keyboard
112. onents inside the computer To avoid generating static electricity do not walk around the room until you have finished installing the part and closed the computer 92 iMac G5 17 inch Take Apart Midplane Assembly Locate the optical drive in the top left corner 3 eoeooo 000 0000002000 WH239330Y1 Chine HMA A AP RRR EL I OU OE Pet i ee OCT n m Using the iMac G5 screw tool or a Phillips 2 screwdriver remove the three optical led below Set the screws aside O O A A gt 2 D 23 O p 3 E p o Y TO 4 iMac G5 17 inch Take Apart Midplane Assembly 5 Pull the optical drive tab straight up and then to the right Set the optical drive aside wa ETON TELON PELLEN V eeoeote teat i gt A toto Zi F d A apeceereceeercesaee Ctetecececeeseerere ttteteeet A zteerteteteogeeeezteg eeeceteooo 4 TN sereeeececertee seoconzeereggeeee LLON etteetetetetottentten fA tttttteteteteeeta tente geecetececececececceetses A epeceeeterececetegeseegere A eteeetecetececezcegeeaccene J ctettteteneteteteeeettete ten etterteteteteteectetett00000 e eec eee Gee 6 Locate the inverter to display panel cable connector o 820 1540 08 tee eee fecere ee Seto 2 DX DOO DOO afit MSS Ss Sees Ss et Setosa lt e e e ee eo un ata
113. overs affected iMacs for up to two years from the original date of purchase Apple will continue to evaluate the repair data and will provide further repair extensions as needed General Information iMac G5 17 inch Troubleshooting 1 Eligible Products The program is available for first generation iMac G5 models that were sold between approximately September 2004 and June 2005 featuring 17 and 20 inch displays with 1 6GHz and 1 8GHz G5 processors 1 The affected iMac G5 computers have serial numbers where the first five 5 digits fall into the ranges noted below W8435xxxxxx W8522XXXXXX QP435xxxxxx QP522xxxxxx CK435xxxxxx CK522XXXxxx YD435xxxxxx YD522XXXXXX Note The iMac G5 REP for Video and Power Issues is based upon the system s serial number and the symptoms diagnosed not upon the serial numbers of the logic boards or power supplies 2 The affected iMac G5 models have EMC codes 1989 and 2008 The EMC number EMC No is located on the label on the bottom of the iMac stand 2 iMac G5 17 inch Troubleshooting General Information Note Only first generation iMac G5 models are eligible for the repair extension program 1989 17 inch iMac G5 ius 2008 20 inch iMac G5 2055 17 inch 1Mac G5 Ambient Light Sensor Second s 2056 20 inch iMac G5 Ambient Light Sensor Note Customers are responsible for the repair cost of any accidental or cosmetic damage or for any issues that do not relate direct
114. p 14 No Go to the next step iMac G5 17 inch Troubleshooting 27 13 Unplug the iMac G5 and remove the SDRAM Replace with known good SDRAM Plug the iMac G5 back in and start the unit by pressing the two internal power pins Does LED 8 light now Yes Replace the original SDRAM and test again If LED 3 does not light with the original SDRAM replace the SDRAM No Continue to next step 14 Unplug the iMac G5 and remove the optical drive Plug the iMac G5 back in and start the unit up from the internal power button Does LED 8 light now Yes This indicates the optical drive has failed Replace the optical drive No Replace the logic board 15 With LED 3 on turn the machine off by holding the internal power button until the unit powers off Unplug the computer and reinstall the back cover Return the computer to the upright position Plug in the computer again and power on the computer Does the computer have video now Yes Restart the computer and make sure that the computer is operating properly No Continue to the next step 16 Turn the display at an angle to you and look closely at the display Is the display completely black or can you see a dim light or glow to the display Completely black Replace the inverter Dim or light glow Replace the LCD panel Scrambled or distorted video Hefer to the iMac G5 Repair Extension Program for video and power issues mentioned at the beginning of this
115. p process 1 9y OL d em JM Symptom Charts Boot from the system CD that came with the computer and see if the hard drive mounts on the desktop Using Drive Setup reinstall the system software drivers for the hard drive Using Drive Setup reinitiation the hard drive Check all cable connections to and from the hard drive Heplace the hard drive Replace the logic board iMac G5 17 inch Troubleshooting 31 Flashing question mark appears on the screen 1 Boot from the system CD that came with the computer and see if the hard drive mounts on the desktop Launch Drive Setup Reinstall the system software drivers for the hard drive If no hard drive is found in Drive Setup verify the hard drive cable connections Heinstall system software Backup the data first Reinitialize the hard drive Heplace the hard drive oY I Ol Sc IOS dM Replace the logic board Optical Drive CDs or DVDs don t show up on my desktop 1 The first thing we should check is whether your drive can read discs normally Try inserting an audio CD and check whether it shows up on your desktop or launches iTunes Then eject it and insert the iMac Software Install and Restore disc that came with your computer Are either of these discs recognized by the computer Yes It seems that some discs will show up on your Desktop so the drive is OK the problem is the individual discs that don t appear Try cleaning these discs and make sure they r
116. ptt Se c 250 n whet Sh CF te Rey Q5 R a e 3 A pigs 86262 _Ss gt 404 AC Ro I SNP OTT TOC B e MT ao E cu o dom E z DICERET nin RIA E E onn Uem 2 A EN iE KIZ C230 fne ON SOP We 9 v REOS R6402 RUMI d eS any 039 e i22 S o SPIO i B 4 cg SECTITEENCT 2 L 1 E CALI 2 C2331 92 L a 11 gt ram ERLI IEL gig 31009 1 2 d v E A PERON 2 Let amp Ys Id DII Ac 20 iMac G5 17 inch Troubleshooting Symptom Charts 8 Plug the power cord into the iMac G5 and into the AC outlet Check to see if LED 1 is On or Off e LED 1 is On This indicates that the power supply is getting good power from the AC outlet Go to step 8 e LED 1 is Off This indicates that your power supply should be replaced Order and install the power supply for your computer 9 Turn the computer on by using the internal power button With your finger or with the nylon probe tool press the small metal button Go on to the next step ge peg FU gmoge Ses TELETELE 26066560609 8800066 sh 00 006 Bbp EEEE esaen6 0 eoeea008 eeeeev TELLA TILIL TELES Symptom Charts iMac G5 17 inch Troubleshooting 21 10 Does the computer start up normally after pressing the internal power button Yes Press and hold the power button until the computer powers off e Unplug the power cord from the iMac and reinstall the back cover e Return the computer to the upright position e Plug the comput
117. rive in the top right corner z APPLE COMPUTER INE 04 1540 4 te 4 Remove the three hard drive screws Set the screws aside 22 iMac G5 17 inch Take Apart Parallel ATA Hard Drive 5 Locate the white connector on the end of the hard drive 6 Carefully lift the hard drive straight up about one inch and disconnect the black cable from the white connector Note Leave the other end of the cable attached to the logic board Parallel ATA Hard Drive iMac G5 17 inch Take Apart 7 Using your fingers disconnect the drive data cable and power cable from the hard drive 8 Liftthe hard drive up and out of the midplane assembly Important Return this hard drive with the carrier to Apple in the packaging provided 24 iMac G5 17 inch Take Apart Parallel ATA Hard Drive Replacing the Parallel ATA Hard Drive 1 Remove the replacement hard drive from its packaging 2 Connect the drive data cable and power cable to the ha into place on the midplane fs E TU C as A AU E NUUS oui a j LI L MN 2 i Tr Bed HRI A ie E m EUM A r es Eua NE eee eet ze id Ncc H P EY J 1 gt a Sie f At a Y ef ff 231 T t a 4 S fe r x L4 d i i ae gt N gt yi oe T W N Pd E 9 9s o9 4 0 69 606040 5 69 0 909089 9666 10507070 0 070747070000 0 0 0
118. rself Touch the metal surface as shown below on the inside of the computer to discharge any static electricity Warning Always discharge static electricity before you touch any parts or install any components inside the computer To avoid generating static electricity do not walk around the room until you have finished installing the part and closed the computer ge Pp 12 iMac G5 17 inch Take Apart Serial ATA Hard Drive 3 Locate the fan cover near the top of the computer E E xU 1 3 aa 70 D AY 4 Li pu MAT A fee Ane lose zi b B fn Ec MC r b J ka i af p m a E m Lu 7 e ive a X j amp 19 L Ww HR EC T va bE tae 4 Using the tool provided or a Phillips 2 screwdriver remove the two fan cover screws Lift the fan cover off the computer Set the screws and fan cover aside Serial ATA Hard Drive iMac G5 17 inch Take Apart 5 Locate the hard drive in the top right corner eetetitetettet EER poses SES t V e s je o 6 5 I DO X me eo LB 6 Move the black video cable located to the left of the hard drive out of the way to access a hard drive screw gt J en oo 1 Pr po O gar d oa 7 24 a ei RRO R IT as uy A qoo Lm AV E F 1 gt fm De amt c ci G66 T UT Be gfe Eam P I YEN gt A v wo LM wp Los D a a _ wa cw m E A 625595 m nos AEN z SEI
119. s 8 922 6665 Inverter 64 iMac G5 17 inch Take Apart Memory DIMMs Memory DIMMs About iMac G5 Memory e iMac G5 computers work with memory modules DIMMs that meet all of these criteria PC3200 2 5V unbuffered 8 byte nonparity 184 pin 400Mhz DDR SDRAM e There are two RAM slots The maximum amount of RAM you can install is 2 GB You can use RAM module sizes of 256 MB 512 MB and 1 GB in either slot e DIMMs with any of the following features are not supported in the iMac G5 computer registers or buffers PLLs ECC parity or EDO RAM Tools Use the screwdriver provided or a Phillips 2 screwdriver to open the back co Preliminary Steps Before you begin remove the back cover Part Location aU P s s 7 Rn i En IN Wie Lace iMac G5 17 inch Take Apart Removing the Memory 1 Important Ground yourself Touch the metal surface as shown below on the inside of the computer to discharge any static electricity Warning Always discharge static electricity before you touch any parts or install any components inside the computer To avoid generating static electricity do not walk around the room until you have finished installing the part and closed the computer 66 iMac G5 17 inch Take Apart Memory DIMMs 2 Locate the memory module s in the bottom right corner E Bai oi s a ee yr prr at A of k v wr i LS Hd i do d i een roD m e 19 e
120. s Preliminary Steps Before you begin remove the following e Back cover e Midplane Part Location iMac G5 17 inch Take Apart Removing the LCD Panel 1 Place the display bezel LCD panel assembly face down on a clean soft lint free folded towel or blanket 2 Remove the four screws at the LCD panel brackets 3 Touching only the top and bottom edges of the LCD panel raise it up out of the display bezel 208 iMac G5 17 inch Take Apart LCD Panel Replacing the LCD Panel 1 Check the routing of the LCD panel cables Note The replacement LCD panel includes the brackets cables tape and gaskets as shown 2 Make sure the cables cannot be pinched when setting the LCD panel in the display bezel LCD Panel iMac G5 17 inch Take Apart 3 Place the LCD panel into the display bezel so that all four screw holes on the brackets align with the screw holes on the bezel 4 Replace the screws 5 Turn over the display bezel LCD panel assembly and check that there are no uneven gaps between the bezel and the display If there are noticeable gaps loosen the screws reseat the panel and retighten the screws 6 Replace the midplane 7 Replace the back cover 210 iMac G5 17 inch Take Apart LCD Panel Front Bezel Tools Required e Clean soft lint free towel or blanket Preliminary Steps Before you begin remove the following e Back cover e Midplane e LCD panel Part
121. s based upon the system s serial number and the symptoms diagnosed not upon the serial numbers of the logic boards or power supplies 2 The affected iMac G5 models have EMC codes 1989 and 2008 The EMC number EMC No is located on the label on the bottom of the iMac stand iMac G5 17 inch Repair Extension Program 2 Note Only first generation iMac G5 models are eligible for the repair extension program 1989 17 inch iMac G5 pun 2008 20 inch iMac G5 2055 17 inch 1Mac G5 Ambient Light Sensor Second s 2056 20 inch iMac G5 Ambient Light Sensor Note Customers are responsible for the repair cost of any accidental or cosmetic damage or for any issues that do not relate directly to the specific logic board or power supply issues covered by this program For example if an iMac is taken to an Apple service provider with a cracked display and a component failure eligible under the program Apple will cover the component failure repair but the cost of replacing the cracked display is the customer s responsibility Repair Strategy Hequired service parts for this program are available so that certified technicians may create a repair at an Apple service provider location WARRANTY REPAIRS If an iMac product eligible for this program is currently covered by an Apple warranty or extended service agreement create the repair in the usual manner However it is extremely important that you select the CompTIA Code s created for th
122. s eeeee d e900909909997 eeseeeeee 9090000909992 reeoeeeee eeeeeeee As the machine starts up listen carefully to each of the fans and see if you can locate one of the three fans of which the objectionable ticking whistling or squealing sound is coming from Can you pinpoint the fan making the sound Yes If the sound is coming from one of the fans near the hard drive you can order and install the Upper Fan kit for the computer If the sound is coming from the fan near the power supply of your computer you should order the lower fan No If you can hear an objectionable ticking whistling or squealing sound but you cannot identify the source of the sound contact Apple Technical Support 38 iMac G5 17 inch Troubleshooting Symptom Charts Heatsink Cleaning Procedure Dust drawn in through the intake grill on the bottom of the iMac can gradually accumulate eventually degrading the cooling performance of the heatsink by obstructing the air flow 1 Before you begin remove the back cover and the midplane assembly 2 Remove the lower fan from it s mounting bracket to expose the heatsink cooling fins Note The lower fan does not need to be disconnected from the logic board 3 With the lower fan removed carefully inspect the heatsink intake for visible dust contamination as shown below If the heatsink appears free of dust then reinstall the lower fan assemble the system and retest the computer If there i
123. s the Midplane Assembly Part 1 J semen C Lon eee BF ss fc 279 5 REEL ensi eam aoh Oo vn gt ETTTIDTDP 2o ELIT E go Screw Charts iMac G5 17 inch Take Apart dplane Assembly Part 2 i To Access the M SKUAIKOTI Crist HEBERILEHETROR UAPSCICAACAUANSAN INANIS PLAN SIN UIN UI INS SLO UIN UIN IN OSL OLE LO OEE TN A LL NE Oy tO SL ol tp INDICAN PD et Gn NES MENINA UU UNI NUN UN INUINSUINSNSEN INA UP INS UAI EN UI UP INEN NIA AN N AA WIENIN AAO DOO OL OO QUINT US UIN UNUNUNUNIOUYSISIYNNISISONESTS glover tale lalatolonlsvalatetalialatalal mans AAR 600049020 ARR OR uem T7 OU QUE UN NUN UNS INUN ANIN UIN EN ENS tale 70 m Qo LOLOL LONE NOOO OOO OOOO OOOO e eS O OD OF ARNO ARR MOY Ss 8G ODINO O NINNE NEEE O N ANAND O OT crn rr OINEN ISO DA INN SU 81079 9 9 7 9v 709 707805 9 9 9 CT annman aan mNAMA S SHn090009 000 MAAE IAA AEA AENA N OO O O OAO TN O EA MNENE N A AAA BOC O OOO On ON AUN UN UN UN NU NASIPIRNMeCOoo00dQ0Qo uo QNIN ADAM AIO UI OUO 99 0 QC INT NUNC OUNUN UNIUS alana amelie 0 0 0 Q7 ROD 0000709 n 99 9 0 ONO AANO NNO NA OMAR Aes eee oo s MADARA AAO POI Pe 90 0 0 as PAPA OT Os ce e Qo cO co 0 QU UNUS S fi OESE ll Oe an ee CANA s ora OTTAA uaaa a aa a a UN a a a e Na T T S NENIAN ININE NNI NENTA N NINES NIANI NAANA i Vile Wa tile TN INEI IN INAN IN ANE YN PSU s LPL LEE ORIOLE ARTA OAT AL Awa aTnen UU NATAT INN PST ANT UNT
124. s visible dust proceed to the next step Symptom Charts iMac G5 17 inch Troubleshooting 39 4 Ifthe dust has accumulated on the cooling fins then use compressed air from a can or an air compressor to blow the dust from the heatsink as shown below Basta cae p HM did CAP n ad hs Yet zB i 4 n A r mx xx a f 5 Inspect the lower fan and use the compressed air to clean it out if needed 6 Inspect the lower grill on the iMac front bezel and clean if needed 7 Reassemble the computer and retest Fans are running at a constant high speed If the fans on the system are running at a constant high speed or ramp very quickly to high speed and do not vary this speed once reached the fans are most likely receiving incorrect thermal input In these cases you should use the following steps to resolve 1 Reset the SMU refer to Resetting the SMU mentioned earlier in this chapter and then test to see if the fans still exhibit the issue 2 Boot from the iMac G5 Install DVD or another iMac G5 of the same type in FireWire Target disc mode and see if the issue persists If the fans run normally here reinstall the system software Be sure to give the system enough time to recreate the issue when booted to these other volumes 3 Verify that the hard drive sensor cable is plugged in correctly If necessary replace the hard drive sensor cable 4 Replace the hard drive the hard drive includes the sensor on the hard
125. space by emptying trash and deleting unneeded items Once you have at least one gigabyte free and you ve emptied the trash try burning a disc again Does it burn correctly now Yes Problem solved No When you try to burn a CD are you burning a disc from the Finder from iTunes or from a different application Refer to Knowledge Base articles 151904 150293 151701 and 153426 for disc burning issues Does it burn a disc now Yes Problem solved No Go on to the next step 6 Reinstall the system software Print Knowledge Base article 151641 and follow the steps Try burning a disc again Did the disc burn correctly Yes Problem solved No Replace the optical drive Does it burn correctly now Yes Problem solved No Replace the logic board 34 iMac G5 17 inch Troubleshooting oymptom Charts Symptom Charts Inserting Discs Issue 1 3 Is there a disc already in the drive Refer to Knowledge Base article 106752 Macintosh How to Eject a Disc When Other Options Do Not Work Check System Profiler In System Profiler in the column on the left look under Hardware for a line called S ATA In the section on the right you should see a header saying S ATA and below it two items The first is your hard drive The second is your optical drive Do you see two items here Yes Problem solved Run diagnostics and trying inserting a disc again No Remove the back cover and reseat the optical drive
126. st remove the back cover 2 Plugin the power cord Inga m 3 Press the power button The LEDs will come on indicating the computer status eeeeee eeeee 6 TEESE seee00e6 eeee006 EELEE EELEE EESE E 55255009 TESSERE EELSEL E 555252320957 55590 6667 tacer eee eee eee gt pnm opms d mno pn oce pe p pe Axes prm TOS DEN Oey Mo owe Fed a Se hy 4 LU 4 Toshutthe computer off with the back cover off press the power button for at least five seconds The green LEDs will go out iMac G5 17 inch Troubleshooting 13 General Information SMU Button on the Logic Board The iMac G5 uses an advanced system management unit SMU to manage the thermal and wattage conditions while keeping the acoustic noise to a minimum The SMU controls the fans and regulates the speeds to run each fan The SMU reset button shown below is similar to the PMU button on previous iMac computers e n 3 tZ AM o oe P P ow o e e o o o ew e e0000 0090909 eee08008 eeeoooe amp 4 DLE A P WW EOS A ee C v LL X y e seo Se wwe E Zo d The SMU supports the following functions e provides initial configuration of system clocks e automatically initiates and sequences voltage and frequency slews when the OS requests a transition to a new run level e handles all power button and environmental user events
127. tep 3 Attached by a cable Go on to step 4 3 So you can see other discs it s just that they don t burn Have you tried discs of other brands Sometimes certain discs won t burn either because of quality or because they re damaged or old Try purchasing a different brand of discs and test to see whether these discs will burn Do the new discs burn correctly Yes Great It looks like the issue can be isolated to the old discs you were using For whatever reason they don t seem to be working so you ll want to use the new discs from now on No So your new discs didn t work either What sort of disc are you trying to burn is ita CD or a DVD CD You said you re having problems burning CDs Let s try an easy question first In your Finder open a window and select your hard drive At the bottom of the window does it say you have at least a gigabyte 1 GB free If no go to step 5 DVD The first thing we should check is whether your drive can read DVDs normally Try inserting the iMac Software Install and Restore disc that came with your computer If you still have problems go to step 6 4 We dont have the capacity to troubleshoot an external drive if you are having problems with a drive other than the internal one you will need to talk to the manufacturer of that drive 5 When the computer burns a CD it needs some free space on the hard drive for it to do what it needs to do when it burns a disc Try freeing up some
128. tical Slot iMac G5 17 e 922 6795 Front Cover Assy w out Optical Slot iMac G5 17 e 661 3598 Panel Display w Brackets iMac G5 17 Procedures added to Take Apart May 2005 e Fans Upper e Logic board e Speakers e Microphone e Bluetooth card e Soft modem e Chassis General Information iMac G5 17 inch Take Apart 1 e AirPort antenna e Bluetooth antenna e LED light pipe 2 iMac G5 17 inch Take Apart General Information Tools The following tools are required to service the computer e Phillips 2 screwdriver e Flat blade screwdriver e orx 6 and 8 screwdriver e Jeweler s flat blade screwdriver e Nylon probe tool black stick 922 5065 e Needlenose pliers e Soft cloth to protect removed parts from scratches General Information iMac G5 17 inch Take Apart 3 Important Things to Know 1 All customer removable screws are brass colored except for some fan screws on earlier units which use torx screws Do not remove screws unless they are brass colored or you will void your warranty Important Ground yourself when working on the computer The procedure will show you how to ground yourself A magnetized L shaped Phillips screwdriver is included with the replacement part The midplane is no longer offered as a service part or as a Do it Yourself repair Most parts on the midplane are now available as individual service parts The display bezel parts no longer offered as a service or DIY repair Th
129. umbers iMac G5 17 inch Note These are not to scale 922 6659 922 6661 922 6662 e e e Video cable to midplane Fan cover to hard drive Chassis to front bezel 2 Phillips 1 1 4 922 6665 922 6666 922 6668 0 nverter to chassis 1 Logic board to chassis e Hard drive bracket to e Optical drive to to front bezel 3 chassis 3 midplane 3 922 6802 922 6850 922 6856 e Fan cover to midplane e Speaker Right 1 T10 Logic Board to 1 e LCD Panel midplane T10 2 iMac G5 17 inch Views Screw Matrix and Part Numbers 922 6842 922 6846 BS e Modem 2 T6 e Bluetooth 2 T6 e AirPort antenna 1 Heatsink pad to chassis e AirPort Guide 2 T6 10 922 6851 a Speaker Left 2 T10 Screw Matrix and Part Numbers iMac G5 17 inch Views 3 Screw Locators To Access the Optical Drive UT LT W1422233011 Chis EEEUTLET YN wt mm SSAA e e Daoananan Screw Locators 4 iMac G5 17 inch Views To Access the Inverter WH238330Y1 Chine HENRI TR P h o e o cee e o o00000000e0 o e o o OOC e v v 50 e o o L E z LI APPLE COMPUTER Pere of SE o AZ e o AZ A D X Os ROCCE e rescesecse a Screw Locators iMac G5 17 inch Views 5 To Access the Fan Cover 6 iMac G5 17 inch Views Screw Locators To Access
130. ve finished these steps Seer SeS amp A es ADIEREN JV tt 755 amp tttC A E 2 eo Bee gt 3Oe04 29 tt 29999 AD CALI oter amp 99 e eee 1 3a DANE P RS Berd aY ee 6 oc General Information iMac G5 17 inch Troubleshooting 9 7 Locate the large white arrow in the middle of the board 1 rii ae i 829 1 40 0t i Au Tej E CITIS s2 cao 2 PATA ACT o ECITOS Luc s 1 bi cir CI ef G Ss r 7 e E e vn ay mn LEO 33 bd LN n TURT aT MEOS orm sence 669 gestos o L zs id E DUM nu niis taiiga y ou so ee C2340 3 C236 i Ww e 4 TUTTO AC DER LRL mi aia REO0S R6402 LET NB CLK ii alf LII LIA ro OO OO Oo naeh TELS IHE EE EHE EIE HE ILE TEL IE LM 17 D C2333 RO799 A e LED 1 indicates that the trickle voltage from the power supply has been detected by the main logic board This LED will remain ON whenever the iMac G5 is connected to a working AC power source The LED will remain on even when the computer has been shut down or put to sleep The LED will turn off only if the AC power source is disconnected or the power supply is faulty 10 iMac G5 17 inch Troubleshooting General Information e LED 2 indicates that the main logic board has detected proper power from the power supply when the computer is turned on This LED will be ON when the
131. wn below Use a needlenose pliers to remove the light pipe 16 Return the logic board to Apple in the packaging provided 156 iMac G5 17 inch Take Apart Logic Board Logic Board Replacing the Logic Board 1 Locate the cleaning wipe and syringe in the replacement logic board box GENERAL PURPOSENCUEA ne NON OZONE DEPLETIN SAFE ON PLASTICC i RAPIDLY EVAPORATING 2 Cean the copper heatpad circled Use the alcohol wipe to clean the copper heatpad tete e425 a a a aT a ee ar fetu tu tete tul S2 iMac G5 17 inch Take Apart 3 Whenever you remove the logic board clean the U3 chip circled 4 Add 1 1 2 to 2 syringes of thermal grease to the U3 chip to ensure sufficient cooling Spread the paste evenly across the surface of the chip 158 iMac G5 17 inch Take Apart Logic Board 5 Locate the light pipe gasket on the back of the board EE EE NM k LUE E rr neo 3 3 o o AEAT ww eave a Logic Board iMac G5 17 inch Take Apart 7 Before placing the logic board into the chassis move or tape the cables shown below out of the way 8 Lower the logic board into the chassis Caution Do not twist bend or flex the board as you lower it into the chassis Flexing the board may jeopardize the thermal interface between the heartsink and the processor Make sure the light pipe seats properly into the bottom left corner and that the cables are
132. work 1 Unplug all devices from your computer including your mouse and keyboard as well as printer scanner external hard drives and hubs Warning Some devices may require you to perform steps before it is safe to unplug them e g external storage devices Be sure to unplug your hub if you have one Plug your keyboard into the back of your computer firmly and securely Plug your mouse into the back of your computer firmly and securely Take special care to make sure the connector is completely in the socket Go on to step 3 Does your keyboard work now Yes Problem solved No Unplug your keyboard and plug it into another USB slot on the back of your iMac Does it work now Yes Replace the logic board No Unplug your keyboard and plug your mouse into the port the keyboard just occupied Go on to step 4 Does your mouse work now Yes Replace the keyboard iMac G5 17 inch Troubleshooting 45 No Replace the logic board Certain keys don t work 1 Unplug all devices from your computer including your mouse and keyboard as well as printer scanner external hard drives and hubs Warning Some devices may require you to perform steps before it is safe to unplug them e g external storage devices Be sure to unplug your hub if you have one 2 Plug your keyboard into the back of your computer firmly and securely Plug your mouse into the back of your computer firmly and securely Take special care to make
133. xt step to remove the second fan Fans Upper iMac G5 17 inch Take Apart 6 Move the video cable to the left to access the fan screw near the top of the computer 423033011 China ALUALU ILN 7 Depending on the type of screws present Torx 8 or Phillips 2 loosen the two fan screws Note You don t have to remove the screws from the rubber grommets to remove the fan just loosen the screws SW84230330Y1 China amine F q 46 iMac G5 17 inch Take Apart Fans Upper Deter 13 x tiva are Lift the fan out of the computer and disconnect the fan cable from the connector on the logic board Pull on the black connector not on the cable 8 iMac G5 17 inch Take Apart If you are replacing the fan remove the screws from the fan grommets Using a screwdriver push the fan screws out of the grommets and set them aside 9 Fans Upper Replacing the Fans 1 Route the fan cable under the black hard drive cable Connect the fan cable to the connector on the logic board Note The fan cables are keyed 2 Place the two screws into the grommets on the replacement fan Position the fan into place and tighten the two fan screws SW8423033DV1 China LLL LL 4d aw Pe ew R18 gt amp TY e 9 on o DIOODI m p O 48 OL E L 36 5 S um s met TY 0998099 eee ny o Du E s gt p 8 PATI TOTU g TEEL TEO OE L ur roa ME o
134. ymptom persists try the next cure Note If a cure instructs you to replace a module reinstall the original module before you proceed to the next cure Symptom Charts iMac G5 17 inch Troubleshooting 19 Power Issues No Power The iMac G5 will not turn on 1 Refer to the iMac G5 Repair Extension Program for video and power issues mentioned at the beginning of this chapter 2 Verify power outlet is good Plug a different device into the socket to ensure there is power or plug the iMac G5 into another outlet 3 Check the power cord Use a known good power cord 4 Checkthe connection of the power cord on both ends Verify that the plug is securely plugged into both the AC outlet and back of the computer 5 Remove keyboard mouse and other peripherals such as speakers Try starting up the computer with these devices removed 6 Remove the back cover to access the diagnostic LEDs on the main logic board See Diagnostic LEDs in this chapter for complete instructions on this procedure 7 Locate LEDs 1 through 4 above the large white arrow in the middle of the main logic board near the fan cover ere RUDI gt Lao gt EJ P T 5a THR ga AD R5061 S ag j m a5 ay DS Xu 702 A J8303 bts vr L PATA ACT A 521C0002 g r TA 25128 et Choi Ury 2 LJ Y el a gt c S w 5a E a Ll T 2 2 LJ n J p s e ES m oan nmn jA sa

Apple Imac G5 User's Manual

Contents

Download Pdf Manuals

Related Search

Related Contents