Acer 4820T manual Troubleshooting

Removing the USB Board 64

Removing the 3G Module 66 Removing the Bluetooth Module 67 Removing the LCD Module 68 Removing the Mainboard 70 Removing the Thermal Module 72 Removing the CPU 73 Removing the RTC Battery 74 Removing the WiFi Antenna Cable 74 Removing the Right Speaker 75 Removing the DC-In Cable 76

LCD Module Disassembly Process 77 LCD Module Disassembly Flowchart 77 Removing the LCD Bezel 78 Removing the Camera Module 79 Removing the LCD Panel 80 Removing the FPC Cable 81 Removing the Microphone Module 82 Removing the Hinges 82

Removing the Antennas 83

LCD Module Reassembly Procedure 85 Replacing the MIC and WiFi Antennas 85 Replacing the Microphone Module 86 Replacing the FPC Cable 87 Replacing the LCD Panel 87 Replacing the Webcam 88

Replacing the LCD Bezel 89

Main Module Reassembly Procedure 91

Replacing the DC-In Cable 91

Replacing the LCD Module 92

Replacing the Right Speaker 92

Replacing the RTC Battery 93 Replacing the CPU 94 Replacing the Thermal Module 94 Replacing the Mainboard 96 Replacing the Bluetooth Module 97 Replacing the 3G Module 98 Replacing the USB Board 99 Replacing the Left Speaker Module 100 Replacing the Function Board 101 Replacing the Switch Board 101 Replacing the Upper Cover 102 Replacing the Keyboard 105

Replacing the Hard Disk Drive Module 105 Replacing the WLAN Board 107 Replacing the DIMM Modules 107 Replacing the ODD Module 108 Replacing the Lower Covers 109 Replacing the Dummy Card 110 Replacing the SIM card 110

Replacing the Battery Pack 111

Troubleshooting 113

Common Problems 113

Power On Issue 114

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