This document outlines the disassembly guide for the GE40/CR42 (MS-1492) device, providing detailed instructions for removing various components. The guide is structured to facilitate maintenance, repair, and component replacement.
Function Description
The GE40/CR42 (MS-1492) is a portable computing device, likely a laptop, designed for general-purpose use. Its modular design, as evidenced by the disassembly guide, allows for individual component replacement and upgrades. The device incorporates standard laptop components such as a battery pack for portable power, a hard disk drive (HDD) and optical disk drive (ODD) for storage, a thermal kit for cooling, DRAM modules for memory, a CPU for processing, and a WLAN module for wireless connectivity. The device also features an LCD module for display, a keyboard for input, and various internal boards and cables for interconnectivity.
Important Technical Specifications
The guide provides part numbers and quantities for various components, which can be used to infer some technical specifications:
- Battery Pack: Part number S9N-4362210-M47, quantity 1. This indicates a single, replaceable battery unit.
- HDD & ODD Module:
- Bottom door: Part number 307-491J213-Y31, quantity 1.
- Screws for bottom door: E43-1303013-G68 (2 pcs), E43-1256001-H29 (2 pcs), E43-1255001-H29 (2 pcs).
- ODD Module: Part number S7D-2170016-T87, quantity 1. This suggests the device includes an optical drive, which is becoming less common in modern laptops.
- Screw for ODD: E43-1255001-H29, quantity 1.
- HDD Module: Part number S71-2475702-W36, quantity 1. This indicates a single hard disk drive for primary storage.
- Thermal-Kit & DRAM Module:
- DRAM Module: Part number S7C-S56AD01-K37, quantity 2. The presence of two DRAM modules implies a dual-channel memory configuration, enhancing performance.
- Fan: Part number E33-0800261-MC2, quantity 1.
- Screw for fan: E43-1255001-H29, quantity 2.
- Heatsink: Part number E31-0804090-CA9, quantity 1.
- Screws for heatsink: E43-1255001-H29, quantity 3.
- CPU & WLAN Module:
- CPU: Part number A13-22201G6-106, quantity 1. This is the central processing unit, the core of the device's computational power.
- Wireless card: Part number S57-08000J0-T46, quantity 1. This provides wireless network connectivity.
- Screw for wireless card: E43-1203003-H29, quantity 1.
- Separate Upper Case and Lower Case:
- Keyboard: Part number S1N-2EUS291-SA0, quantity 1.
- Screws for upper/lower case separation: E43-1255001-H29, quantity 8.
- DC IN Module: Part number K10-3006142-V03, quantity 1. This is the power input port.
- LVDS Cable: Part number K19-3040045-H39, quantity 1. This cable connects the display to the motherboard.
- Lower Case Assy:
- Audio Board: Part number 607-1492A-02S, quantity 1.
- MB (Motherboard): Part number 607-14921-02S, quantity 1. This is the main circuit board of the device.
- Power board: Part number 607-1492B-01S, quantity 1.
- Hall Switch Board: Part number 607-1492C-01S, quantity 1.
- Speaker Module: Part number S33-A010142-F33, quantity 1.
- Touchpad Module: Part number S78-3700630-E47, quantity 1.
- Upper case: Part number 307-492C513-Y31, quantity 1.
- Screws for LCD hinges: E43-1255001-H29 (1 pc each for left and right), E43-1203501-H29 (1 pc each for left and right).
- Hinge R (Right LCD hinge): Part number E2M-4920411-G60, quantity 1.
- Hinge L (Left LCD hinge): Part number E2M-4920311-G60, quantity 1.
- LCD Module Assy:
- LCD Bezel: Part number 307-491B214-U22, quantity 1.
- LCD Panel: Part number OS1-1491002, quantity 1.
- Screw for LCD Panel: E43-1203003-H29, quantity 2.
- LVDS Cable: Part number K19-3040045-H39, quantity 1 (reiterated, likely indicating it connects to the LCD module).
- Screws for Right LCD hinge: E43-1203003-H29, quantity 3.
- Hinge R: Part number E2M-4920411-G60, quantity 1.
- Screws for Left LCD hinge: E43-1203003-H29, quantity 4.
- Hinge L: Part number E2M-4920311-G60, quantity 1.
- Antenna: Part number S79-1801700-J51, quantity 2. These are likely for the WLAN module, possibly for improved signal reception.
- LCD Cover: Part number 307-492A231-Y31, quantity 1.
- Camera Module: Part number S1F-0005120-B36, quantity 1. This is the integrated webcam.
The consistent use of specific screw part numbers (e.g., E43-1255001-H29, E43-1203003-H29) suggests standardization in hardware components, simplifying maintenance. The specified screw driver torque values (1.2-2.0Kgf-cm, 1.5-2.0Kgf-cm, 1.7-2.0Kgf-cm, 1.8-2.0Kgf-cm, 2.0-2.5Kgf-cm, 3.0-3.5Kgf-cm) are critical for proper assembly and preventing damage.
Usage Features
While the document focuses on disassembly, the listed components imply the following usage features:
- Portability: The presence of a battery pack confirms its design for mobile use.
- Storage: Both HDD and ODD modules provide ample storage options, with the ODD allowing for disc-based media playback or burning.
- Connectivity: A WLAN module enables wireless internet access.
- Input: A standard keyboard and touchpad facilitate user interaction.
- Display: An LCD module provides visual output.
- Audio: An audio board and speaker module provide sound capabilities.
- Communication: A camera module and MIC cable suggest video conferencing and voice recording capabilities.
- Modular Design: The detailed disassembly steps highlight the modular nature of the device, allowing for component-level repairs and upgrades, which extends the device's lifespan and adaptability.
Maintenance Features
The entire document serves as a maintenance guide, detailing the steps required to access and replace various components. Key maintenance features include:
- Step-by-step Disassembly: Clear, numbered instructions with accompanying images make the process straightforward, even for less experienced technicians.
- Component Identification: Each step identifies the component to be removed and provides its part number and quantity, crucial for ordering replacements.
- Screw Specifications: The guide specifies the size of screws (e.g., M2.55mm, M23mm, M3*3.5mm) and, importantly, the required screw driver torque for reassembly. This prevents over-tightening (which can strip threads or crack components) and under-tightening (which can lead to loose parts).
- Modular Replacement: The ability to remove and replace individual modules (battery, HDD, ODD, DRAM, CPU, WLAN, fan, heatsink, keyboard, DC IN, audio board, motherboard, power board, Hall switch board, speakers, touchpad, LCD panel, camera, hinges, antennas) simplifies troubleshooting and repair. Instead of replacing the entire device for a single faulty component, only the affected part needs to be changed.
- Cable Management: Instructions for disconnecting and reconnecting various cables (keyboard cable, FAN cable, LVDS cable, MIC cable, Audio cable, Antenna and MIC cable, Power cable, Hall Switch cable, Speaker cable, Touchpad cable) are provided, which is essential for proper reassembly and functionality.
- Specific Removal Techniques: For components like the LCD bezel, instructions specify the starting point and direction of removal ("begin from downside to left side, then the upside to right side"), indicating a careful approach to avoid damage.
- Safety Precautions: While not explicitly stated as "safety precautions," the emphasis on correct screw torque values implicitly guides safe handling and reassembly, preventing damage to the device. The hexagonal screwdriver requirement for the CPU slot also indicates a specific tool for a delicate component.
In summary, the GE40/CR42 (MS-1492) is a serviceable laptop designed with modularity in mind, allowing for comprehensive maintenance and repair through detailed, step-by-step disassembly instructions and component specifications.
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