
Satellite M640/ProM640 Series Maintenance Manual vii
2.16HDD/SSD Troubleshooting..................................................................................................... 40
2.17CRT Troubleshooting .............................................................................................................. 42
2.18HDMI Troubleshooting ........................................................................................................... 44
2.19MIC Troubleshooting............................................................................................................... 46
2.20Finger printer troubleshooting ................................................................................................. 48
2.21E-SATA Troubleshooting........................................................................................................ 50
2.223D Sensor Troubleshooting ..................................................................................................... 52
2.23Sleep & Charge Troubleshooting............................................................................................. 54
2.24Sleep & Play music Troubleshooting ...................................................................................... 56
2.25 3G Troubleshooting................................................................................................................. 58
2.26 LAN Troubleshooting.............................................................................................................. 61
2.27 Ambient Light Sensor Troubleshooting................................................................................... 63
2.28 Wimax Troubleshooting .......................................................................................................... 65
Chapter 3Tests and Diagnostics
3.1 The Diagnostic Test............................................................................................................................3
3.2 Executing the Diagnostic Test............................................................................................................4
3.3 Display Configuration.........................................................................................................................7
3.4 Audio sound test .................................................................................................................................8
3.5 Fan ON/OFF/Speed Test...................................................................................................................11
3.6 Main Battery Charge Test.................................................................................................................13
3.7 FDD Test...........................................................................................................................................15
3.8 Memory check ..................................................................................................................................16
3.9 Keyboard Test...................................................................................................................................19
3.10 Mouse (Pad) Test............................................................................................................................21
3.11 LCD Pixels Mode Test....................................................................................................................22
3.12 Magnetic Switch Test .....................................................................................................................23
3.13 LAN Test ........................................................................................................................................25
3.14 RTC Test.........................................................................................................................................27
3.15 BUTTON TEST..............................................................................................................................28
3.16 1st HDD Test ..................................................................................................................................30
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