Apple imac 20 inch mid 2009 User Manual
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iMac (20-inch, Early/Mid 2009) Symptom Charts — Mass Storage 51 2010-11-24 Optical Drive Not Recognized Unlikely cause: LCD panel, power supply, fans, speakers, camera, microphone Quick Check SymptomsQuick Check Drive Not Recognized/Mount (J05) • Discs inject and eject, but do not appear in Finder 1. Use Apple System Profiler Serial-ATA section to see if the optical drive and any inserted media appears. 2. Check Finder Preferences and make sure “CD’s, DVD’s and iPods” is checked under “Show these items on the desktop” in the General section. 3. Check both CD and DVD media. If only one type of media is recognized, there is a laser issue. Replace optical drive (J03). Deep Dive Check ResultAction Code 1. Is the optical drive listed in the Serial-ATA section of the Apple System Profiler? Yes Go to step 2. No Go to step 3. 2. Test both CD and DVD media. Can drive read both CD media and DVD media? Yes Go to step 6. No Drive has a laser issue. Replace the optical drive. If both types media fail, check Finder Preferences then go to step 3. J03 3. Reseat SATA cable connections at logic board and optical drive. Do both types of media read reliably now? Yes Go to step 6. No Go to step 4. 4. Connect known-good optical drive to SATA cable. Do both types of media reliably read now? Yes SATA cable and port on logic board good. Go to step 5. No Replace SATA cable and test (X03). If issue persists, replace logic board (M19). Go to step 6.
iMac (20-inch, Early/Mid 2009) Symptom Charts — Mass Storage 52 2010-11-24 5. Connect original optical drive to known-good SATA cable. Do both types of media reliably read now? Yes SATA cable issue. Replace SATA cable. Go to step 6. X03 No Go to step 2. 6. Test read compatible known- good CD and DVD media (Install DVD). Verify media is recognized and reads reliably. Yes Issue resolved. No Replace optical drive. J03 Optical Drive Won’t Accept/Eject Media Unlikely cause: LCD panel, power supply, fans, speakers, camera, microphone Quick Check Symptoms Quick Check Drive Won’t Accept Media (J01) Drive Won’t Eject Media (J02) • Cannot insert a disc into the drive • Cannot eject a disc placed into the drive 1. Use Apple System Profiler Serial-ATA section to see if the optical drive appears. If not, go to Optical Drive Not Recognized. 2. Restart computer and hold down mouse button or keyboard eject key to cycle optical drive. 3. Inspect optical drive slot for obstructions. Deep Dive Check ResultAction Code 1. Verify that optical drive is listed in the System Profiler device tree for Serial-ATA devices. Yes Optical drive communicating with logic board. Go to step 5. No Logic board not communicating with optical drive. Go to step 2. 2. Verify all connection between logic board, flex cable, and optical drive are secure. Visually inspect cables and connectors for any debris, damage or bent pins. Verify that the optical drive is listed in the System Profiler device tree. Yes Optical drive communicating with logic board. Go to step 5. No Replace damaged cables and retest. If connections are good and with no visible cable damage, go to step 3. X03
iMac (20-inch, Early/Mid 2009) Symptom Charts — Mass Storage 53 2010-11-24 3. Connect known-good optical drive to SATA cable. Verify that known-good optical drive is listed in the System Profiler device tree. Yes Go to step 4. No Suspect SATA cable. Go to step 7. 4. With known-good optical drive installed, test for media inject/ eject. Verify drive accepts and ejects known-good media. Yes Known-good optical drive resolved inject/eject issue. Replace optical drive. J03 No Go to step 7. 5. Inspect optical drive slot during disc insert/ eject. Verify that discs can be inserted easily. Yes Go to step 6. No Replace damaged optical drive. Note: It may be possible to reinstall the optical drive bezel to correct this issue. J03 6. With known-good optical media (Install disc), test for media inject/eject. Does drive accept and eject known-good media? Yes Media issue. No repair necessary. Suggest user investigate use of different media. No Go to step 3. 7. Replace SATA cable then test for media inject/eject. Does drive inject and eject known- good media? Yes SATA cable resolved issue. Return system to user. X03 No SATA cable verified or replaced, and optical drive verified or replaced. Replace logic board and retest. M19
iMac (20-inch, Early/Mid 2009) Symptom Charts — Mass Storage 54 2010-11-24 Optical Drive Read/Write Error Unlikely cause: LCD panel, power supply, fans, speakers, camera, microphone Quick Check SymptomsQuick Check Drive Read/Write Data Error (J03) • Errors when writing optical media. • Errors when reading optical media. • Hang when accessing or preparing to write data. 1. Test optical media in another drive of the same type in the same type of computer to rule out media issue. 2. Check with known-good discs like the Install discs that came with the computer. 3. For write issues, check with known-good media that performs well in another computer and optical drive of the same type. 4. Check both CD and DVD media. If only one type of media is producing errors, there is a laser issue. Replace optical drive (J03). Deep Dive Check ResultAction Code 1. Is media free to spin without optical drive scraping edge or surface of media? Yes Go to step 2. No Replace optical drive. J05 2. Test both CD and DVD media. Can drive read both CD media and DVD media? Yes Go to step 6. No Drive has a laser issue. Replace the optical drive. If both types media fail, go to step 3. J03 3. Reseat SATA cable connections at logic board and optical drive. Do both types of media read reliably now? Yes Go to step 6. No Go to step 4. 4. Connect known-good optical drive to SATA cable. Do both types of media reliably read now? Yes SATA port on logic board good. Go to step 5. No SATA port on logic board bad. Replace logic board. M19 5. Connect original optical drive to known-good SATA cable. Do both types of media reliably read now? Yes SATA cable issue. Replace SATA cable. Go to step 6. X03 No Replace optical drive. J03
iMac (20-inch, Early/Mid 2009) Symptom Charts — Mass Storage 55 2010-11-24 6. Test write data to compatible CD and DVD media. Verify burned media is recognized and reads reliably. Yes Issue resolved. No Replace optical drive. J03 Optical Drive Not Performing to Specifications Unlikely cause: LCD panel, power supply, fans, speakers, camera, microphone Quick Check Symptoms Quick Check Optical Drive Not Performing to Specifications (J07) • Read or write speeds slower than expected 1. Test optical media in another drive of the same type in same type of computer to rule out media issue. 2. For write issues, check with known-good media that performs well in another computer and drive of the same type. 3. Check both CD and DVD media. If only one type of media is producing errors, you have a laser issue. Replace the optical drive (J05) Deep Dive Check ResultAction Code 1. Test both CD and DVD media. Can drive read both CD media and DVD media? Yes Go to step 6. No Drive has a laser issue. Replace the optical drive. If both types media fail, go to step 3. J03 2. Reseat SATA cable connections at logic board and optical drive. Do both types of media read reliably now? Yes Go to step 6. No Go to step 4. 3. Connect known-good optical drive to SATA cable. Do both types of media reliably read now? Yes SATA cable and port on logic board good. Go to step 5. No Replace SATA cable and test (X03). If issue persists, replace logic board (M19). Go to step 6.
iMac (20-inch, Early/Mid 2009) Symptom Charts — Mass Storage 56 2010-11-24 4. Connect original optical drive to known-good SATA cable. Do both types of media reliably read now? Yes SATA cable issue. Replace SATA cable. Go to step 6. X03 No Replace optical drive. J03 5. Test write data to compatible CD and DVD media. Verify burned media is recognized and reads reliably. Yes Issue resolved. No Go to step 7. J03 6. The balance of some media may not perform at higher speeds supported by the drive. Does slowing the requested burn speed allow the discs to write reliably? Yes Media issue. No repair necessary. No Replace optical drive. J07 Optical Drive Noisy Unlikely cause: LCD panel, power supply, fans, speakers, camera, microphone Quick Check Symptoms Quick Check Optical Drive Noisy (J04) • Noise during boot • Noise during operation • Noise when drive is copying or writing data 1. Test optical media in another drive of the same type in same model of computer to rule out media issue. 2. Test with known-good discs like the Install discs that came with the computer. 3. Check to see if noise occurs without media in the drive. If so, check if hard drive (H06) or fan (M18) caused noise. Deep Dive Check ResultAction Code 1. Test both CD and DVD media. Can drive read both CD media and DVD media? Yes Go to step 6. No Drive has a laser issue. Replace the optical drive. If both types media fail, go to step 3. J03
iMac (20-inch, Early/Mid 2009) Symptom Charts — Mass Storage 57 2010-11-24 2. Reseat SATA cable connections at logic board and optical drive. Do both types of media read reliably now? Yes Go to step 6. No Go to step 4. 3. Connect known-good optical drive to SATA cable. Do both types of media reliably read now? Yes SATA cable and port on logic board good. Go to step 5. No Replace SATA cable and test (X03). If issue persists, replace logic board (M19). Go to step 6. 4. Connect original optical drive to known-good SATA cable. Do both types of media reliably read now? Yes SATA cable issue. Replace SATA cable. Go to step 6. X03 No Replace optical drive. J03 5. Test write data to compatible CD and DVD media. Verify burned media is recognized and reads reliably. Yes Issue resolved. No Go to step 7 J03 6. The balance of some media may not perform at higher speeds supported by the drive. Does slowing the requested burn speed allow the discs to write reliably? Yes Media issue. No repair necessary. No Replace optical drive. J07 Uncategorized Symptoms Check ResultAction Code 1. Verify whether existing symptom code applies to the issue reported by the user. Yes Jump to appropriate symptom code flow. No Document reported failure and send feedback to [email protected] stating that a suitable symptom code wasn’t found. Provide as much detail as possible. N99
iMac (20-inch, Early/Mid 2009) Symptom Charts — Communications 58 2010-11-24 Communications AirPort/Bluetooth Issues Quick Check SymptomsQuick Check AirPort/Bluetooth Issues • Unable to join networks or pair devices • AirPort card not available • Intermittent device or connection dropouts • Limited wireless range 1. Verify that AirPort or Bluetooth is turned ON and for AirPort issues make sure that a network is selected. 2. For AirPort, check if the wireless access point requires special connection and encryption protocols. 3. Check for nearby sources of interference such as microwave ovens or cordless phones. See kBase article http://support.apple.com/kb/HT1365 4. Check the number of users trying to use AirPort in the area for possible network congestion (available bandwidth). 5. Isolate potential OS issues by starting up from the original Install media for the computer, the same model computer in Target Disk Mode, or compatible known-good OS on an external drive. Both AirPort and Bluetooth services are available when booted from the Install disc. Deep Dive Check ResultAction Code 1. Open System Profiler. AirPort is listed under Network, while Bluetooth is listed under USB. Is AirPort/Bluetooth recognized? Yes Install all software updates for AirPort/Bluetooth. AirPort, go to step 3. Bluetooth, go to step 4. No Remove and reinstall the AirPort/Bluetooth card and retest. If still unrecognized, replace the AirPort/Bluetooth card. Go to step 2. M11
iMac (20-inch, Early/Mid 2009) Symptom Charts — Communications 59 2010-11-24 2. Ensure that antenna cable(s) are connected properly and not damaged, and all software updates available for AirPort/ Bluetooth have been installed. Do connection issues persist? Yes AirPort, go to step 3. Bluetooth, go to step 4. No Issue resolved. 3. Create a computer-to- computer network with another Macintosh computer using AirPort. See kBase article http://docs.info.apple.com/ article.html?path=AirPort/5.0/ en/ap2110.html. Can you connect successfully? Yes Network or channel issue. Go to step 5. No Double check any password required. Try connecting another known-good computer to the network. If test computers connect, replace AirPort card. Go to step 6. M11 4. Make sure that your Bluetooth device is in discoverable mode, and that your computer is also in discoverable mode. Can you successfully and reliably pair a device now? Yes Issue resolved. No Replace Bluetooth card. Go to step 6. M11 5. Try connecting to a known- good network that does not require password or has MAC address filtering enabled. Can you connect to a network reliably now? Yes Troubleshoot local network. Possible password or MAC address filtering issue. No Replace AirPort card. Go to step 6 M11 6. With the AirPort/Bluetooth card replaced and antenna cable inspected for damage and replaced if necessary, are the connection issues resolved? Yes Issue resolved. No Replace logic board. M11
iMac (20-inch, Early/Mid 2009) Symptom Charts — Communications 60 2010-11-24 AirPort Card Kernel Panic Quick Check SymptomsQuick Check AirPort Card Kernel Panic • Kernel panic on startup • Kernel panic or freezing while attempting to connect to wi-fi networks • Kernel panic while transferring data on wi-fi networks 1. Isolate OS by starting up from original Install media for the computer, the same model computer in Target Disk Mode, or compatible known-good OS on an external drive. AirPort service is available when booted from the Install disc. 2. Ensure that all software and firmware updates for the computer and AirPort been installed. Deep Dive Check ResultAction Code 1. Remove AirPort card. Does computer start without kernel panic? Yes Reseat AirPort card and retest. If problem continues replace AirPort card. Go to step 2. No Possible logic board issue. Go to Kernel Panic/System Crashes. 2. With replacement AirPort card installed, does computer start without kernel panic? Yes AirPort card issue. Issue resolved. N13 No Possible logic board issue. Go to Kernel Panic/System Crashes.