Acer 581T, 581TG HDMI and CRT Failure

Troubleshooting 4-17

HDMI and CRT Failure 0

If the HDMI or CRT function fails, perform the following, one at a time. Do not replace a non-defective

FRU:

Figure 4-12. HDMI and CRT Failure

START

Swap MB

Reinsert

CRT/HDMI

Connector

Reinstall corrcet

driver

Check

Drivers install OK

or not in Device

manager

CRT/HDMI

connection check

Contents

Main Revision History Disclaimer CAUTION: WARNING: Copyright General information Page CHAPTER 1 Hardware Specifications CHAPTER 2 System Utilities CHAPTER 3 Machine Maintenance CHAPTER 4 Troubleshooting CHAPTER 6 FRU List Page Page Page Page Page Page Hardware Specifications and Configurations Features Intel integrated GPU The following is a brief summary of the computers many features: Operating System Storage Subsystem Solid state drive Hard disk drive 2-in-1 card reader, supporting: Audio Subsystem Privacy Control Dimensions and Weight Dimensions Weight Power Adapter and Battery Special Keys and Controls Keyboard Touchpad Media keys I/O Ports Environment Page Notebook Tour Open Top View Closed Front View Closed Rear View Left View Right View Base View Indicators Touchpad Basics Using the Keyboard Lock Keys Windows Keys Hotkeys Page Page Specification Tables Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page System Utilities BIOS Setup Utility Navigating the BIOS Utility BIOS Information Page Main Page 2-8 System Utilities Security This tab shows parameters that safeguard and protect the computer from unauthorized use. Setting a Password Removing a Password Changing a Password Page Boot Exit BIOS Flash Utilities DOS Flash Utility Page Page Remove HDD/BIOS Password Utilities Remove HDD Password Utilities Page Page Cleaning BIOS Passwords Page Page Page Page Page Page Page LAN MAC EEPROM Utility Page Page Page Page Page Page Page Page Page Machine Disassembly and Replacement Recommended Equipment Replacement Requirements Page Disassembly Process External Module Disassembly Process External Modules Disassembly Flowchart Page Page Page Page Removing the SSD Module Removing the WLAN Module Page Removing the ODD Module Page Page Main Unit Disassembly Process Main Unit Disassembly Flowchart Removing the Top Case Page Page Page Page Page Page Page Page Page Remove the card reader Page Page Page Removing the Mainboard Page Removing the Thermal module Page Page Removing the Speakers Page LCD Module Disassembly Process LCD Module Disassembly Flowchart Removing the LCD Bezel Page Page Page Removing the LCD Panel Page Page Page Replacing the LCD Panel CAUTION: Page Page Page Replacing the Speakers Page Page Replacing the Thermal Module Page Replacing the Mainboard Replacing the LCD Module & Cables to Mainboard Page Page Replacing the Card reader Page Page Page Replacing the Keyboard Page Page Page Page Page Page Page Page Replacing the WLAN Module Page Replacing the SSD Module Page Page Page Page Page Page Troubleshooting Introduction General Information Power On Issues Computer Shuts Down Intermittently No Display Issues No POST or Video Abnormal Video Troubleshooting 4-7 LCD Failure If the LCD fails, perform the following, one at a time. Do not replace a non-defective FRU: Figure 4-3. LCD Failure Keyboard Failure Touchpad Failure Internal & External Speaker Failure Sound Problems Page Microphone Failure USB Failure 4-14 Troubleshooting WLAN Failure If the WLAN fails, perform the following, one at a time. Do not replace a non-defective FRU: Figure 4-9. WLAN Failure Card Reader Failure 4-16 Troubleshooting Thermal Unit Failure Figure 4-11. Thermal Unit Failure If the Thermal Unit fails, perform the following, one at a time. Do not replace a non-defective FRU: HDMI and CRT Failure Figure 4-12. HDMI and CRT Failure 4-18 Troubleshooting CD-ROM/DVD Failure Figure 4-13. CD-ROM/DVD Failure Other Functions Failure Intermittent Problems Undetermined Problems Post Codes POST Code Range Page Page Page Page Page Page Page Page Page Page Jumper and Connector Locations Page Page Clearing Password Check and BIOS Recovery Clearing Password Check Steps for Clearing BIOS Password Check Clear CMOS Jumper BIOS Recovery by Crisis Disk BIOS Recovery Boot Block BIOS Recovery Hotkey Steps for BIOS Recovery from USB Storage Page Page FRU (Field Replaceable Unit) List MA50_HX Exploded Diagrams Main Assembly Page LCD Assembly Top Case Assembly Bottom Case Assembly Page FRU List Page Page Page Page Page Page Page Page Page Page Page Page Page Microsoft Windows 7 Environment Test 0 M3 581T/581TG Page Page Page Page Page Page Online Support Information Introduction