Aspire E1-521 Keyboard

Acer Aspire E1-521 Notebook Service Guide

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... Notebook Tour 1-6 Top View 1-6 Front View 1-7 Left View 1-8 Right View 1-9 Base View 1-10 Touchpad Basics 1-11 Keyboard Basics 1-12 System Block Diagram 1-15 Specifications Table 1-16 Chapter 2. Table of Contents Chapter 1. System Utilities BIOS Setup Utility ... Crisis Utility Disk 2-31 Chapter 3. Troubleshooting General Information 4-2 Power On Issues 4-3 No Display Issues 4-4 LCD Picture Failure 4-6 Internal Keyboard Failure 4-7 i Jumper and Connector Locations Mainboard Top View 3-2 Mainboard Bottom View 3-4 USB Board View 3-5 Power Board View 3-6 ODD Board View ...

Acer Aspire E1-521 Notebook Service Guide

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... HDD Module Removal 5-23 HDD Module Installation 5-24 HDD Carrier Removal 5-25 HDD Carrier Installation 5-25 WLAN Module Removal 5-26 WLAN Module Installation 5-28 Keyboard Removal 5-30 Keyboard Installation 5-32 Upper Case Removal 5-34 Upper Case Installation 5-38 RTC Battery Removal 5-41 RTC Battery Installation 5-42 Mainboard Removal 5-43 Mainboard Installation 5-47...

Acer Aspire E1-521 Notebook Service Guide

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... of data or damage to equipment. Variables contained within user input are shown in bold italics. Example: At the prompt, type run [file name] -m • Keyboard keys are shown in square brackets ([ ]). The following conventions are used in this manual: WARNING: Indicates a potential for the proper completion of a procedure, choice of...

Acer Aspire E1-521 Notebook Service Guide

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CHAPTER 1 Hardware Specifications and Configurations Hardware Specifications and Configurations 1-2 Features 1-2 Notebook Tour 1-6 Top View 1-6 Front View 1-7 Left View 1-8 Right View 1-9 Base View 1-10 Touchpad Basics 1-11 Keyboard Basics 1-12 System Block Diagram 1-15 Specifications Table 1-16

Acer Aspire E1-521 Notebook Service Guide

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...; Headphone/speaker jack, supporting 3.5 mm headset with built-in microphone for Acer smart handhelds • Microphone-in jack • Ethernet (RJ-45) port • DC-in jack for AC adapter Special Keys and Controls Keyboard • 105/106/109-key Fine Tip keyboard • International language support • Independent standard numeric keypad, pgdn...

Acer Aspire E1-521 Notebook Service Guide

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Touchpad • Multi-gesture touchpad, supporting two-finger scroll, pinch, rotate, flip Media keys • Media control keys (printed on keyboard): play/pause, stop, previous, next, volume up, volume down Environment Temperature • Operating: 5º C to 35º C • Non-operating: -20ºC to 60ºC ...

Acer Aspire E1-521 Notebook Service Guide

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.... Touch-sensitive pointing device that functions like a computer mouse. Receives audio input for video communications. Notebook Tour Top View 76 5 1 4 3 2 # Icon Item 1 Power Button 2 Touchpad 3 Keyboard 4 Speaker 5 Display Screen 6 Microphone 7 Webcam Figure 1:1. Top View Description Press to enter data into the computer.

Acer Aspire E1-521 Notebook Service Guide

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... with the arithmetic operators +, -, *, and /). Use with other key combinations to perform special functions. • Press to open the context menu of numeric data entry. Keyboard Basics 5 1 23 4 Figure 1:7. Hardware Specifications and Configurations 1-12 Press to launch the Start menu. • When used with other keys, provides a variety of functions...

Acer Aspire E1-521 Notebook Service Guide

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...the left side Supports 10/100/1000BASE-T GbE Keyboard Item Type Total number of keypads Windows logo key Internal & external keyboard work simultaneously Features Specification TM7T_G11B 105-US/106-UK /109-JP keys Yes Plug USB keyboard to Acer BIOS specification. BIOS Item BIOS vendor BIOS ...Version BIOS ROM type BIOS ROM size Features Specification Insyde 1.00 W25Q32BV, EN25Q32B 4MB • Insyde code base • Flash ROM 4 MB • Support ISIPP • Support Acer UI • Support multi...

Acer Aspire E1-521 Notebook Service Guide

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System Interrupt Specification Hardware IRQ System Function IRQ0 High precision event timer IRQ1 Standard PS/2 Keyboard IRQ2 Cascaded IRQ3 AMD EHCI USB Controller (7808, 7808) IRQ4 AMD High Definition Audio controller(780D) Ethernet controller(1083) IRQ6 Diskette drive IRQ7* Parallel port ...

Acer Aspire E1-521 Notebook Service Guide

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... controller no. 1 & PCI bus Motherboard resources no. 1 Interrupt controller no. 1 Unused Unused Motherboard resources no. 2 System timer Unused Standard PS/2 Keyboard System speaker Microsoft ACPI-Compliant Embedded Controller no. 1 Standard PS/2 Keyboard Microsoft ACPI-Compliant Embedded Controller no. 2 System CMOS/RTC Motherboard resources no. 3 Motherboard resources no. 4 DMA controller no. 2 Motherboard resources...

Acer Aspire E1-521 Notebook Service Guide

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Mainboard Top Jumper and Connectors Item Description Left Side Speaker Connector LVDS Connector Internal Digital MIC Connector Right Side Speaker Connector Touchpad Connector Internal Keyboard Connector USB 2.0 Connector Jumper and Connector Locations JUSB2 3-2 Jumper and Connector Locations Mainboard Top View JSPK1 JLVDS1 JMIC2 JLED1 JSPK2 JTP1 JKB1 JBATT1 JREAD1 LED1 LED2 LED3 LED4 SW1 LED5 LED6 LED7 SW2 JSPK1 JLVDS1 JMIC2 JSPK2 JTP1 JKB1 JUSB2 Figure 3:1. Mainboard Top Table 3:1.

Acer Aspire E1-521 Notebook Service Guide

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CHAPTER 4 Troubleshooting Troubleshooting 4-2 General Information 4-2 Power On Issues 4-3 No Display Issues 4-4 LCD Picture Failure 4-6 Internal Keyboard Failure 4-7 Touchpad Failure 4-8 Internal Speaker Failure 4-9 Internal Microphone Failure 4-11 USB Failure 4-12 Wireless Function Failure 4-13 4-in-1 Card Function Failure 4-14 Unit Thermal Failure 4-15 Cosmetic Failure 4-16 Other Functions Failure 4-17 BIOS Problems 4-17 Intermittent Problems 4-18 Undetermined Problems 4-18

Acer Aspire E1-521 Notebook Service Guide

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Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. • Do not replace a non...Microphone Failure USB Failure Wireless Function Failure 4-in -1 Card Function Failure on page 4-6 Figure 4:4. No Display Issues on page 4-7 Figure 4:5. Internal Keyboard Failure on page 4-4 Figure 4:3. Internal Microphone Failure on page 4-16 Page 4-17 4. Cosmetic Failure on page 411 Figure 4:8. USB Failure on page... are a guide for troubleshooting computer problems. The step by repeating the operation that led to test only Acer products.

Acer Aspire E1-521 Notebook Service Guide

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OK Swap M/B NG Replace KB material Figure 4:4. Internal Keyboard Failure 4-7 Troubleshooting Internal Keyboard Failure If the internal keyboard fails, perform the following: Start OK Check KB FPC well insert NG OK Re-assemble the KB FPC to M/B Is KB ok?

Acer Aspire E1-521 Notebook Service Guide

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... HDD Module Removal 5-23 HDD Module Installation 5-24 HDD Carrier Removal 5-25 HDD Carrier Installation 5-25 WLAN Module Removal 5-26 WLAN Module Installation 5-28 Keyboard Removal 5-30 Keyboard Installation 5-32 Upper Case Removal 5-34 Upper Case Installation 5-38 RTC Battery Removal 5-41 RTC Battery Installation 5-42 Mainboard Removal 5-43 Mainboard Installation 5-47...

Acer Aspire E1-521 Notebook Service Guide

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It provides information on what components need to be removed and installed during servicing Battery ODD Module Dummy Card Base Door Keyboard HDD Module DIMM Module WLAN Module Upper Case HDD Carrier Mainboard Speaker Module USB Module Touchpad FFC RTC Battery Power Board Fan Thermal Module LCD Module CPU Figure 5:1. Maintenance Flow Service and Maintenance 5-4 Maintenance Flowchart The flowchart in Figure5-1 provides a graphic representation of the module removal and installation sequences.

Acer Aspire E1-521 Notebook Service Guide

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Removing the Keyboard CAUTION: A cable is connected underneath the keyboard. Service and Maintenance 5-30 Releasing the Keyboard Latches 2. Figure 5:39. Do not completely lift the keyboard. Figure 5:38. From the top side of the keyboard, pull the keyboard to slightly release the keyboard from the upper case. Keyboard Removal Prerequisite: Battery Pack Removal on page 5-7 1. Using a plastic pry, push the six (6) latches circled below to detach it from the upper case.

Acer Aspire E1-521 Notebook Service Guide

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Under the bottom side of the keyboard, push the connector locks upwards to remove the keyboard cable connector from the mainboard connector. Figure 5:40. 3. Disconnecting the Keyboard Cable 5-31 Service and Maintenance

Acer Aspire E1-521 Notebook Service Guide

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Keyboard Installation 1. Installing the Keyboard (1 of the keyboard to the upper case. Push the connector clips down to the mainboard connector with the coloured side down. Align the bottom edge of 2) Service and Maintenance 5-32 Push the clips of the mainboard connector up and then connect the keyboard cable connector to secure the cable. Figure 5:41. Figure 5:42. Connecting the Keyboard Cable 2.

Aspire E1-521 Keyboard - Acer