Apple imac 20 inch mid 2009 User Manual
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iMac (20-inch, Early/Mid 2009) Symptom Charts — Communications 61 2010-11-24 Ethernet Port/Device Issue Unlikely cause: LCD display, power supply, hard drive, optical drive, fans Quick Check SymptomsQuick Check Ethernet Port/Device Issue • No ethernet device present • Unable to access network resources • Ethernet device shows no connection • Ethernet device unable to an IP address • Slow network performance 1. Check the ethernet cable for damage, try a known-good ethernet cable – CAT5 or...
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iMac (20-inch, Early/Mid 2009) Symptom Charts — Communications 62 2010-11-24 4. Check for speed and duplex issues on the network. Open System Preference > Network; click the Advanced button, then the Ethernet tab. Is the speed and duplex reported what is expected? Yes Go to step 5. No Change the speed and duplex settings. See kBase article http://docs.info.apple.com/ article.html?path=Mac/10.5/ en/8711.html. Go to step 6. 5. Check for MTU (Maximum Transmission Unit) issues. See article...
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iMac (20-inch, Early/Mid 2009) Symptom Charts — Communications 63 2010-11-24 Deep Dive CheckResultAction Code 1. Without any wired input devices connected, start the computer. Does the computer show the Bluetooth Mouse Setup assistant? Yes Bluetooth hardware is active. Go to step 4. No Inspect and reseat Bluetooth cable to Bluetooth card. Replace a damaged cable. Go to step 2. 2. Restart the machine without any wired input devices attached. Does the computer show the Bluetooth Mouse Setup...
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iMac (20-inch, Early/Mid 2009) Symptom Charts — Communications 64 2010-11-24 Wireless Input Device Loses Connection Quick Check SymptomsQuick Check Wireless Input Device Loses Connection • Wireless keyboard, mouse, or other wireless input device loses connection. 1. Remove and reinstall the batteries for the device. 2. Check that device is powering on. 3. Use known-good batteries with the device. 4. Ensure other devices pair and keep connection without issue. If not, go to AirPort/Bluetooth...
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iMac (20-inch, Early/Mid 2009) Symptom Charts — Communications 65 2010-11-24 5. Log into new Admin User account. With the device on, run the Bluetooth Setup Assistant. Can you successfully pair the device with the New User? Yes User-based issue. Troubleshoot software on User account. No repair needed. No Remove the following file: / Library/Preferences/com. apple.Bluetooth.plist Go to step 6. 6. Restart the computer. With the device on, run the Bluetooth Setup Assistant. Can you...
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iMac (20-inch, Early/Mid 2009) Symptom Charts — Communications 66 2010-11-24 Uncategorized Symptoms Quick Check SymptomsQuick Check Uncategorized Symptoms • Unable to locate appropriate symptom code. 1. Verify System Preferences/Network settings are configured appropriately to support communication method. 2. For ethernet connection issues verify that the cable being used functions when used with another known-good system. 3. For wireless connection issues review user environment to determine...
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iMac (20-inch, Early/Mid 2009) Symptom Charts — Input/Output Devices 67 2010-11-24 Input/Output Devices Apple Remote Inoperable Unlikely cause: LCD display, power supply, hard drive, optical drive, fans Quick Check SymptomsQuick Check Apple Remote Inoperable • Apple Remote doesn’t bring up Front Row • Apple Remote doesn’t control iTunes • Apple Remote doesn’t control computer volume 1. Make sure you’re using the Apple Remote within 30 feet of the computer, and have an unobstructed...
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iMac (20-inch, Early/Mid 2009) Symptom Charts — Input/Output Devices 68 2010-11-24 4. After clicking “Unpair”, does the computer now respond to the Apple Remote? Yes Pairing issue. Issue resolved. No Possible IR board issue. Go to step 5. 5. Open the Apple System Profiler. Selecting USB, do you see “IR Receiver” listed? Yes IR Receiver reporting on USB bus. Check for lens block. Go to step 6. No Inspect and reseat IR cable to IR board. If necessary, replace damaged IR cable. Go step 7. 6....
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iMac (20-inch, Early/Mid 2009) Symptom Charts — Input/Output Devices 69 2010-11-24 Deep Dive CheckResultAction Code 1. Verify that boot chime is present when system is powered on. Note: make sure audio output preferences are not set to mute. Yes Go to step 2. No Audio board not detected by system. Reseat audio board, then replace audio board if problem persists. M09 2. Launch System Preferences and select Sound/Input options. Verify that system’s Internal Microphone is selected. Yes Go to...
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iMac (20-inch, Early/Mid 2009) Symptom Charts — Input/Output Devices 70 2010-11-24 Audio: Built-in Speakers Have Distorted Sound Unlikely cause: LCD display, power supply, hard drive, optical drive, fans Quick Check SymptomsQuick Check Audio: Built-in Speakers Have Distorted Sound • No audio from one or both speakers • Audio from speakers distorted 1. Launch System Preferences and select Sound/ Output options. Verify that the sound output option is set to system’s internal speakers and the...