Acer Aspire 4315 Aspire 4315 / 4715Z Service Guide - Page 8

External Module Disassembly Process External Modules Disassembly Flowchart Removing the Battery Pack Removing the Express Dummy Card Removing the Lower Cover Removing the DIMM Removing the WLAN Board Module Removing the Hard Disk Drive Module Removing the Optical Drive Module Main Unit Disassembly Process Main Unit Disassembly Flowchart Removing the CPU Heatsink Module Removing the CPU Removing the Keyboard Removing the Middle Cover Removing the LCD Module Separating the Upper Case from the Lower Case Removing the Speaker Modules Removing the Launch Board Bracket Removing the Touchpad Board Module Removing the Audio Board Removing the USB Board Removing the Mainboard Removing the Modem Board Removing the RTC Battery LCD Module Disassembly Process LCD Module Disassembly Flowchart Removing the LCD Bezel Removing the Camera Board Removing the Inverter Board Removing the LCD with Brackets Removing the LCD Brackets Removing the LCD Module Hinges Removing the Antenna Removing the Microphone Troubleshooting System Check Procedures External CD/DVD-ROM Drive Check Keyboard or Auxiliary Input Device Check Memory Check Power System Check Touchpad Check Power-On Self-Test (POST) Error Message Index of Error Messages Phoenix BIOS Beep Codes Index of Symptom-to-FRU Error Message Intermittent Problems Undetermined Problems System Block Diagram and Connector Locations System Block Diagram Board Layout Top View Bottom View 48 48 49 49 50 51 52 53 54 56 56 57 58 59 60 61 63 65 66 67 68 70 71 72 74 76 76 77 78 79 80 83 83 84 85 87 88 88 88 88 89 90 91 92 94 98 102 103 105 105 106 106 107 viii