Apple macbook 13 inch aluminum late 2008 User Manual
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MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Startup and Power Issues 41 2010-06-15 9. Check for No Backlight Condition. Power on unit. Using a lamp or bright light source, inspect for faint image, and verify that any faint image appears. YesLogo image visible - check LVDS cable on logic board. Inspect cable for damage near clutches: . if damaged, replace display assembly and go to step 11 . if cable is not damaged, run Clamshell Service Diagnostic utility and check for LCD panel presence. If not found, reseat it and retest, then go to step 11 L09 NoIf symptom continues, go to step 10. 10. Verify with known-good display assembly Connect known-good display assembly to system. YesSystem is functioning with known-good display assembly Replace display assembly if following symptom reporting: - had no power issue - had incorrect/missing colors - had blank video - had distorted / blurred video - had vertical/horizontal lines - had noise/unstable flickering - had dim backlight - had bad spot(s)/pixels - had no backlight - could not change resolution L01 L02 L03 L04 L05 L06 L07 L08 L09 L10 NoSymptoms unchanged - replace logic board M03 11. Verify with reseated LVDS cable or replaced display assembly Verify that unit now has video and backlight. YesIssue was only due to damaged display assembly or unseated cable. NoDisplay cable damaged the logic board. Replace logic board. M25
MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Startup and Power Issues 42 2010-06-15 Battery Isn’t Recognized or Won’t Charge Unlikely cause: display assembly, speakers, optical drive, hard drive, trackpad Quick Check SymptomQuick Check Battery isn’t recognized or won’t charge • AC adapter • No MagSafe LED indicator • No orange charge indication • Battery status LEDs: - single chase - all flash - no LED 1. Check battery level and test AC power. 2. Test system with known-good battery. 3. Test customer’s battery in known-good system. Deep Dive CheckResultActionCode 1. Does the MagSafe LED go green to amber when connected to the system? YesBattery is recognized and charging. Go to step 6 NoLED is green, Battery may be full or not recognized. Go to step 2 LED was on momentarily then went out. Go to No Power for system (M01) 2. When the Battery status button is pressed, did any of the lights come on? YesGo to step 3 No Go to step 11 3. Does battery status indicate a fully charge battery with all LEDs on? YesCustomer battery charged, check health. Go to step 13. NoGo to step 4 4. Does battery status indicate the battery is not recognized with a single LED on that chases back and forth 5 times? YesGo to step 8 and tag battery as a possible P11 candidate. (P11) NoGo to step 5
MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Startup and Power Issues 43 2010-06-15 5. Does battery status indicate the battery is recognized but not charging with all LEDs blinking? YesGo to step 8 and tag battery as a possible P10 candidate (P10) NoGo to step 6 6. Does battery status indicate battery charge and flash the next level 5 times? YesCustomer battery charging, check battery condition. Go to step 13 NoFlashing first LED only, go to step 7 No battery status LEDs on, go to step 11 7. Does battery status indicate a low battery with a LED flashing rapidly indicating initial charging of battery? YesAllow customer battery to charge to 1 LED on before checking battery condition. Go to step 13. NoGo to step 8 8. Test with a known-good battery. Is battery recognized and charging? YesReplace customer battery (P10 not charging or P11 not recognized) P10 or P11 NoGo to step 9 9. Inspect customer battery contacts and battery cable connector for corrosion or obstructions. YesClear obstructions and replace the battery harness cable if corroded and recheck. X03 NoGo to step 10 10. Reseat battery harness at logic board connector, and retest. Is battery recognized and charging? YesIssue resolved by cable reseat. Check battery condition, go to step 13 NoReplace logic board M20 11. Battery status LEDs not working - inspect button stuck or cable disconnect at logic board and reset SMC. YesLED status now working. Go to step 3. NoGo to step 12. 12. Remove system battery and connect and test a known- good battery status indicator assembly. Do LEDs indicate a battery not recognized chase pattern? YesReplace customer battery LED indicator assembly. Go to step 3 X03 NoReplace customer logic board.M20
MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Startup and Power Issues 44 2010-06-15 13. Open Apple System Profiler and click on the Power Tab on the left. Is the battery over 300 cycle counts? YesBattery has been consumed, and customer will need to purchase a replacement. NoGo to step 14. 14. Is battery less than a year old?YesGo to step 16 NoBattery warranty expired, go to step 15 15. Considering the age of the battery greater than one year old, is the health of the battery “Good” according to system profiler? YesBattery is in good health and out of 1 year warranty coverage. Battery should continue to function until consumed. NoBattery is consumed after warranty coverage. Customer to purchase a new battery. 16. For batteries still covered by warranty, is the health of the battery “Good?” YesBattery functioning normal. Go to step 17. NoBattery has premature capacity loss. Replace customer battery. P08 17. With battery charge greater than 20% does battery support system operation without AC connected? YesCustomer battery is good NoGo to step 18 18. Test with a known-good battery. Does known-good battery support battery only operation? YesReplace customer battery for will not run system on battery alone P12 NoReplace logic board M20
MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Startup and Power Issues 45 2010-06-15 Kernel Panic/System Crashes Unlikely cause: Battery, Power Adapter Quick Check SymptomQuick Check Memory Issues/Kernel panic and freezes • Display notice of system kernel panic during start up and desktop use. • System freeze during use. • System freeze upon wake from sleep. 1. Reset SMC and clear PRAM 2. Remove suspect external devices. 3. Verify user memory is Apple-approved memory, and memory configuration matches memory installed. 4. Start up with shift key down for safe mode. 5. Startup from known-good bootable device 6. Check panic.log info for crash cause 7. Run AHT for sensors test Deep Dive CheckResultActionCode 1. Isolate Peripherals as cause. Disconnect all peripherals, external devices, and display adapters if present YesSuspect peripherals as cause. Reconnect one at a time, verifying unit operation at each stage NoGo to Step 2 2. Reset SMC and clear PRAM then verify that unit starts without panic issues. YesIssue resolved with default startup settings. NoGo to step 3
MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Startup and Power Issues 46 2010-06-15 3. Boot in Safe Mode with Shift key down, and check for recent kernel panic data in panic log. Open Panic.log file on hard drive and check for affected interface that crashed. If unit still crashes during startup, you will need to take out disk to a good system to access the file. Verify that kernel panic dependency is not with an I/O interface. YesKernel Panic is not a system I/O related device. Go to step 5 NoI/O device related crash, go to step 4 4. Remove I/O device where possible to pinpoint faulty device: - Disconnect camera cable from display assembly (for AirPort, Bluetooth, camera, and ambient light sensor). Camera cable can be disconnected without affecting startup and test. - optical drive cable to isolate optical drive. - hard drive cable to isolate hard drive. Memory cards can be removed, relocated, or tested with known-good memory. Because system will run on one card, this is a useful test for finding bad memory or bad memory slot. If issue remains after testing I/O device, replace with known- good part(s) to confirm issue resolved. YesSystem starts up when I/O device removed, replace affected I/O device or module containing it. If AirPort card presence is crashing system, replace AirPort card. If still issue, replace display assembly (for Bluetooth, camera, or cable damage). If optical drive presence is crashing system, replace optical drive cable and retest. If issue remains try with known-good optical drive. If still issue, replace optical drive. If hard drive presence is crashing system, replace hard drive cable and retest. If issue remains, try with known-good hard drive. If still issue, replace hard drive. Reseat memory or replace suspect memory with known- good memory. N13 L14 X03 J03 X03 H01 X01 NoSymptoms unchanged, go to step 5
MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Startup and Power Issues 47 2010-06-15 5. Start up from optical drive or known-good OS. Attempt to start up with original or product install disc, or from an external hard drive with product OS installed, and verify that system starts without kernal panic. YesKernel panics cease running alternate OS. Run ASD/ DiskUtility to repair and test hard drive. If repair attempts fail, repartition hard drive and reinstall OS. Replace hard drive if restore fails. H03 NoSymptoms unchanged, go to Step 6 6. Disconnect display assembly and test with known-good display assembly. Verify that system now starts up without kernel panic/freeze. YesReplace display assembly. L14 No Go to step 7 7. Check for thermal values and fan running speed Run ASD to check for fan and sensors test, and verify that ASD does not report any overtemp, failing sensor, or fan. YesNo thermal fail detected - Replace logic board with matching symptom: - If hang or freeze - If Kernel Panic/system crashes M05 M06 NoIf sensor test failed, reseat sensor connections on logic board and retest. If still failing, replace sensor or part where it is located (top case, display, other) : If top case sensor failed If display sensor failed If logic board sensor failed If fan test failed, replace fan. If overtemp , replace heatsink. X99 L14 M18 X03 X10
MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Startup and Power Issues 48 2010-06-15 Battery Run Time Too Short Quick Check SymptomQuick Check Battery Run Time Too Short Battery runs out of power very quickly (less than two hours) 1. Check if the battery is covered under a repair extension program. Use the “Portable Computer Battery Screening Process for Apple Service Providers” (Knowledge Base CP165). 2. Verify no applications have runaway processes with the CPU. See “Runaway applications can shorten battery runtime” (Knowedge Base TS1473). 3. Use “Apple Portables: Battery Life” (Knowledge Base HT1466) to screen for short battery run time. If replaced for run time too short, regardless of warranty coverage, use symptom code P09 if replaced. Won’t Run on Power Adapter Alone Unlikely cause: RAM, display assembly, hard drive, optical drive, top case, speakers, camera, microphone Quick Check SymptomQuick Check Won’t Run on Power Adapter Alone Runs on battery but not on power adapter only. 1. Verify proper wattage adapter is being used. 2. Check for dirty or stuck pins on the MagSafe connectors, both on the adapter and the computer. 3. Connect the AC adapter to known-good power source. 4. Verify power cord or plug is properly attached to AC adapter and MagSafe cable is not damaged. 5. With the battery removed, unplug AC adapter, reset SMC by holding the power button for 5 seconds
MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Startup and Power Issues 49 2010-06-15 Deep Dive CheckResultActionCode 1. With battery removed, will a known-good AC adapter start up and run the system and show MagSafe LED status? YesConfirm user’s AC adapter as bad and replace. P14 NoVerify MagSafe board cable seating to logic board. Go to step 2 2. Does a known-good power adapter’s LED light up either green or amber? YesSMC on logic board senses AC power adapter. Go to step 3 NoReplace the MagSafe board. Go to step 3. 3. Does the unit run on known- good power adapter alone? YesIssued resolved.X03 NoReplace logic board..M01 Power Adapter Issue Unlikely cause: logic board, RAM, display assembly, hard drive, optical drive, top case, speakers, camera, microphone Quick Check SymptomQuick Check Power Adapter Issue • No power • No Power LED • Non-operational • Stuck /broken pin 1. Connect AC adapters MagSafe connector to the computer. The LED on the connector should be green or amber. 2. Verify power cord, or plug, is firmly attached to AC adapter. 3. Verify AC power source is supplying AC power. 4. Check for dirty or stuck pins on the MagSafe connectors, both on the adapter and the computer. Use and cleaning of power adapter with MagSafe 5. Remove battery, unplug AC adapter, and reset SMC by holding the power button for 5 seconds.
MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Startup and Power Issues 50 2010-06-15 Deep Dive CheckResultActionCode 1. Verify that the MagSafe LED is green or amber while connecting a known-good AC adapter on customer system. YesSMC on logic board senses AC power adapter and enabled power. Go to step 4. NoVerify MagSafe interconnect board is connected to logic board. Go to step 2 2. Does the unit run on known- good AC power adapter only? YesIssued resolved.P99 NoReplace the MagSafe interconnect board. Go to step 3. 3. Verify the MagSafe LED is green or amber while connecting known-good power adapter on customer system. YesBad MagSafe interconnect board. Issue resolved. X03 NoGo to step 4 4. Does the customer’s power adapter have stuck or bent pins on the MagSafe connector? Yes Replace power adapter.P15 NoGo to step 5 5. Does the cable or duckhead have visible damage? Yes Replace cable or duckhead.P16 NoGo to step 6 6. Check that LED on MagSafe connector is displaying both green (if battery charged) and orange (when charging). YesVerify adapter with known- good unit and customer unit and troubleshoot source of error NoReplace power adapter.P03