Apple mac pro early 2009 User Manual
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Mac Pro (Early 2009) Symptom Charts — Distorted Audio from Internal Speaker 91 2010-09-27 4. Reseat internal speaker connection. Verify sound is heard from internal speaker. YesIssue resolved NoReplace speaker. Go to step 5X08 5. Verify sound is heard from internal speaker. YesIssue resolved NoGo to step 6 6. Insert and disconnect known good headphones or external speakers in the front headphone jack several times. There are mechanical switches inside the headphone connector. Verify sound is heard on the internal speaker. YesIssue resolved NoGo to step 7 7. Disconnect front panel board. Verify sound is heard from internal speaker YesProblem is with front panel board. Replace front panel board M09 NoReplace backplane BoarbM09 Distorted Audio from Internal Speaker Unlikely cause: Power supply, fans, hard drives, optical drives, processor board, front panel board, memory Quick Check SymptomQuick Check Distorted Audio from Internal Speaker Distorted audio 1. Reset PRAM . 2. Adjust sound output level in System Preferences: Sound Output to assist identification of speaker distortion source. 3. Ensure customer audio files are not the source. 4. Compare the same sound and the audio output settings against another known good computer to make sure the sound file is the cause, and not the hardware.
Mac Pro (Early 2009) Symptom Charts — Distorted Audio from Internal Speaker 92 2010-09-27 Deep Dive CheckResultActionCode 1. Do external speakers or headphones distort when compared with the same settings and volume as the distorting internal speaker? YesAudio source or volume issue. Reduce volume and retest with known good audio source. Note some audio source frequencies may be outside the frequency response of the internal speaker which may lead to distortion. Go to step 5. NoInternal speaker issue. Go to step 2. 2. Verify the internal speaker cable connector is not damaged and correctly seated to the backplane board connector. YesGo to step 3. NoReseat the cable, or if damaged replace internal speaker. Go to step 5 X09 3. Verify the speaker membrane is free from contamination and debris, and not deformed or damaged. YesGo to step 4. NoClean any contamination and debris. Go to step 5. If membrane is damaged, replace the defective speaker. Go to step 5. X09 4. Ensure the speaker assembly is securely attached in the computer. Verify if the speaker assembly causes any vibration when a sound is played. YesReplace speaker assembly. Go to step 5. NoClean any dust or debris. Go to step 5. 5. Using a known good audio source verify the internal speaker no longer produces distorted sound. YesIssue resolved. NoReplace the backplane board.M09
Mac Pro (Early 2009) Symptom Charts — Front Headphone Jack Has No Audio 93 2010-09-27 Front Headphone Jack Has No Audio Unlikely cause: Power supply, fans, hard drives, optical drives, processors, heatsinks, processor board, memory Quick Check SymptomQuick Check Front Headphone Jack Has No Audio Can’t hear any audio from the computer’s front headphone jack 1. Disconnect all external audio peripherals. 2. Ensure volume is not at a low/muted setting. 3. Boot from Install media or external compatible Mac OS X. Listen for sound from internal speaker when adjusting volume setting. 4. Connect known good headphones to rear Audio Line Out jack. Listen for sound from headphones when adjusting volume setting. 5. Connect known good headphones to front headphone jack. Listen for sound from headphones when adjusting volume setting. 6. Reset PRAM Deep Dive CheckResultActionCode 1. Check System Profiler for audio devices: Audio (Built In) Intel High Definition Audio. Look for Internal Headphone Connection: 1/8 inch Jack YesBuilt-in audio devices available. Go to step 2 NoNo built -in audio devices available. Replace backplane board M09 2. Connect known good headphones to front headphone jack. Check Output in System Preferences (Sound pref pane) has Headphones selected. YesSet to Headphones. Go to step 3 NoThe wrong output device shown, e.g., internal speaker. Go to step 6 3. Verify sound is heard from headphones. YesIssue resolved NoNo audio heard. Go to step 4
Mac Pro (Early 2009) Symptom Charts — Line-In Jack Has No Input 94 2010-09-27 4. Reseat front panel board cable and confirm the cable is not damaged. Verify sound is heard from headphones. YesIssue resolved NoIf cable is damaged, replace cable. Go to step 5 X03 5. Insert and disconnect known good headphones or external speakers in the front headphone jack several times. There are mechanical switches inside the headphone connectors. Verify sound is heard from the headphones YesIssue resolved NoReplace front panel board. Go to step 6 M09 6. Verify sound is heard in the headphones YesIssue resolved NoReplace backplane boardM09 Line-In Jack Has No Input Unlikely cause: Power supply, fans, hard drives, optical drives, processors, heatsinks, processor board, memory Quick Check SymptomQuick Check Line-In Jack Has No Input Can’t receive any audio input from the computer’s line-in jack 1. Disconnect all external audio peripherals. 2. Ensure volume is not at a low/muted setting. 3. Boot from Install media or external compatible Mac OS X. Listen for sound from internal speaker when adjusting volume setting. 4. Connect known good line-level microphone or other line-level device to the Audio Line In jack. For information on supported devices, review http://support.apple.com/kb/TA25159. 5. Go to ‘Input’ of the Sound pane System Preferences. Select ‘Line In’. 6. Adjust Input volume slider to maximum and play sound into Line In. Verify if the Input level shows moving bars relating to the sound being input. 7. Reset PRAM
Mac Pro (Early 2009) Symptom Charts — Line-In Jack Has No Input 95 2010-09-27 Deep Dive CheckResultActionCode 1. Check System Profiler for audio devices: Audio (Built In) Intel High Definition Audio. Look for Internal Line-In Connection: 1/8 inch Jack. YesBuilt-in audio devices available. Go to step 2 NoNo built-in audio devices available. Replace backplane board. M09 2. Connect a known good line- level microphone or other line-level device to the line-in jack. Manually switch System Preference Sound Input to Line In. YesSet to Line In. Go to step 3 NoThe wrong input device shown, e.g. internal microphone. Manually switch System Preference Sound Input to Line In. Go to step 3 3. Verify the Input level shows moving bars relating to the sound being input. YesIssue resolved NoReplace backplane board.M09
Mac Pro (Early 2009) Symptom Charts — Line-In Jack Has Distorted Input 96 2010-09-27 Line-In Jack Has Distorted Input Unlikely cause: Power supply, fans, hard drives, optical drives, processors, heatsinks, processor board, memory Quick Check SymptomQuick Check Line-In Jack Has Distorted Input Distorted input in the computer’s line-in jack 1. Disconnect all external audio peripherals. 2. Ensure volume is not at a low/muted setting. 3. Boot from Install media or external compatible Mac OS X. Listen for sound from internal speaker when adjusting volume setting. 4. Connect known good line-level microphone or other line-level device to the Audio Line In jack. For information on supported devices, review http://support.apple.com/kb/TA25159. 5. Go to ‘Input’ of the Sound pane System Preferences. Select ‘Line In’. 6. Reduce Input volume slider so the sound into Line In jack is not too loud or distorting. Verify the Input level shows moving bars relating to the sound being input. 7. Reset PRAM Deep Dive CheckResultActionCode 1. Check System Profiler for audio devices: Audio (Built In) Intel High Definition Audio. Look for Internal Line-In Connection: 1/8 inch Jack. YesBuilt-in audio devices available. Go to step 2 NoNo built-in audio devices available. Replace backplane board. M09 2. Connect a known good line- level microphone or other line-level device to the line-in jack. Manually switch System Preference Sound Input to Line In. YesSet to Line In. Go to step 3 NoThe wrong input device shown, e.g. internal microphone. Manually switch System Preference Sound Input to Line In. Go to step 3
Mac Pro (Early 2009) Symptom Charts — Rear Line-Out Jack Has No Audio 97 2010-09-27 3. Reduce Input volume slider so the sound into the line-In jack is not too loud or distorting. Verify the Input level shows moving bars relating to the sound being input.. YesIssue resolved NoReplace backplane board.M09 Rear Line-Out Jack Has No Audio Unlikely cause: Power supply, fans, hard drives, optical drives, processors, heatsinks, processor board, memory Quick Check SymptomQuick Check Rear Line-Out Jack Has No Audio Can’t hear any audio from the computer’s line-out jack 1. Disconnect all external audio peripherals. 2. Ensure volume is not at a low/muted setting. 3. Boot from Install media or external compatible Mac OS X. Listen for sound from internal speaker when adjusting volume setting. 4. Connect known good headphones to rear Audio Line Out jack. Listen for sound from headphones when adjusting volume setting. 5. Connect known good headphones to front headphone jack. Listen for sound from headphones when adjusting volume setting. 6. Reset PRAM Deep Dive CheckResultActionCode 1. Check System Profiler for audio devices: Audio (Built In) Intel High Definition Audio. Look for Internal Line-Out Connection: 1/8 inch Jack. YesBuilt-in audio devices available. Go to step 2 NoNo built-in audio devices available. Replace backplane board. M09
Mac Pro (Early 2009) Symptom Charts — Rear Line-Out Jack Has No Audio 98 2010-09-27 2. Connect headphones or external speakers to the rear line-out jack. Manually switch System Preference Sound Output to Line Out. YesSet to Line Out. Go to step 3 NoThe wrong output device shown, e.g. internal microphone. Manually switch System Preference Sound Output to Line Out. Go to step 3 3. Verify sound can be heard from headphoe or external speakers. YesIssue resolved NoReplace backplane board.M09
Mac Pro (Early 2009) Symptom Charts — Optical Digital Audio In Has No Input 99 2010-09-27 Optical Digital Audio In Has No Input Unlikely cause: Power supply, fans, hard drives, optical drives, processors, heatsinks, processor board, memory Quick Check SymptomQuick Check Optical Digital Audio In Has No Input Can’t receive any signal input from the computer’s optical digital audio in jack 1. Reset PRAM 2. Disconnect all external audio peripherals. 3. Connect optical-in on computer to optical-out on another Mac computer via a known good TOSLINK cable. Ensure the optical TOSLINK cables and connectors are in good condition so there is minimal loss or degradation of the digital signal. 4. Do not use a 1/8 inch optical jack to TOSLINK adapter and connect to the line-in port. 5. It is not within the feature set of the computer to decode a DTS, AC3, or 5.1 signal on digital optical input. 6. Set preferences for the other Mac computer: System Prefs - > Sound -> Output -> Digital Out 7. Start playback of iTunes track or audio source on the other computer 8. Set preferences for the computer you are testing: System Prefs - > Sound -> Input -> Digital In 9. Observe input level meter on the computer you are testing. There should be some kind of activity. 10. Understand a red light shines from the rear optical digital audio out connector, whether or not a device is connected to it. This is a normal condition. Deep Dive CheckResultActionCode 1. Check System Profiler for audio devices: Audio (Built In) Intel High Definition Audio. Look for Optical Digital In Connection: S/P - DIF IN. YesBuilt-in audio devices available. Go to step 2 NoNo built-in audio devices available. Replace backplane board M09
Mac Pro (Early 2009) Symptom Charts — Optical Digital Audio In Has No Input 100 2010-09-27 2. From Quickchecks: To test the actual audio quality, create a new GarageBand project on the computer being tested, and add a new track -> Real Instrument, Vocals, No Effects, monitor on. Verify that you hear the audio being played back through the computer’s speaker and see VU meter activity for that instrument. YesIssue resolved. No issue with the optical output or input at a hardware level. NoRule out software on the computer. If it still fails, replace backplane board. M09