Introduction

Alliums LED projector AP-020 Teardown for 24S2 GRAP2940 Advanced ID Engineering Assignment Task 1 (A) - Benchmarking

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    • L: 320mm

    • W: 250mm

    • H: 120mm

    • weight: 2654g

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    • Remove lens cap.

    • Remove the side dust filter.

    • Remove the back dust filter.

    • Component Description (lens cap): Translucent Polycarbonate lens cover with a diameter of 88mm and a height of 8.25mm is used to protect the lens when moving the device. PC material has good impact resistance, good toughness and is not easy to break. This part weighs 12g and is made using injection molding.

    • Component Description (side dust filter): The side dust filter is made of ABS plastic grille and artificial sponge. The grille is injection molded. The grid weighs 29g and the artificial sponge weighs less than 1g (less than the minimum range of my scale).

    • Component Description (back dust filter): The back dust filter is made of ABS plastic injection molding. The weight is 2g.

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    • Turn it over to the bottom.

    • Unscrew 1*PH1 screw. (RED)

    • Unscrew 6*PH0 screws. (BLUE)

    • Remove the top cover. (be careful not to break the FPC cable)

    • Release the 2*ZIF connectors (YELLOW) and remove the FPC cable.

    • The top cover is now removed.

    • Component Description (top cover): The module is made of ABS plastic injection molding (excluding touch buttons and circuit board parts), with dimensions of 297mm in length, 232mm in width, and 40mm in height. The module weighs 243g.

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    • Remove 5*PH0 screws (RED) and release all the ZIF connectors on the front of the motherboard, including the Speaker (BLACK), Fan (ORANGE), Power supply (YELLOW), Infrared remote control (GREEN), LCD (MAGENTA), Wifi module (BLUE), the motherboard connects to the secondary board (CYAN). Now, you can remove the secondary board and Wifi module.

    • Carefully turn the motherboard over and remove the power button cable (RED) and second fan (BLUE) located on the back. The motherboard can now be removed.

    • Component Description (motherboard): Contains LCD screen control driver, 2*HDMI, 1*VGA, and controls fans and speakers. The dimensions are 120mm long, 93mm wide, the thickest part is 16.3mm at the VGA interface, and the PCB thickness is 1.6mm. Weight is 49g.

    • Component Description (secondary board): Provides 2*USB-A, AV, audio, TF card reader interfaces and connects to the motherboard through an FPC cable. The module is 108mm long and 36mm wide. The thickest part is 9.5mm located on the USB-A interface. The PCB thickness is 1.6mm. The weight is 15g.

    • Component Description (Wifi module): The module uses a 1.6mm green PCB, 40mm long, 30mm wide, and 4mm thick. There is a coaxial cable connected to the FPC antenna. The entire module weighs 7g.

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    • Remove 10*PH0 screws. (RED)

    • Remove the right cover first.

    • Then remove the left cover.

    • Component Description (right cover): Injection molded from ABS plastic. Length 207mm, width 184mm, height 41.5mm. Weight 64g. Used to seal the light path to avoid light leakage and reduce dust entry.

    • Component Description (left cover): Injection molded from ABS plastic. Length 221mm, width 220mm, height 50mm. Weight 73g. Used to seal the light path to avoid light leakage and reduce dust entry. At the same time, fix 2 fans and build a cooling duct.

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    • Pull up to remove the LCD.

    • Pull up to remove the polarizer.

    • Pull up to remove the light cup.

    • Component Description (LCD): A 5.8-inch LCD panel is embedded in a frame made of ABS injection molding. It is connected to the motherboard through an FPC cable. The module is 148mm long, 91mm wide, 5.8mm thick, and weighs 39g.

    • Component Description (polarizer): A polarizer made of glass substrate, located between the LCD screen and the light cup, used to create polarized light to match the LCD screen. 145mm long, 85mm wide, 1.1mm thick. Weight: 32g.

    • Component Description (light cup): The optical cup module consists of 3 parts. The inner part is made of aluminum and is made by stamping and bending processes. The outer black ABS plastic bracket is injection molded and has a PC Fermier lens in the front for focusing light. The module is 145mm long, 85mm wide and 88.5mm thick. Module weight: 82g.

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    • Remove the AC input connector (RED), remove the mainboard DC output connector (ORANGE), and remove the LED output connector (YELLOW).

    • Pull up to remove the power supply.

    • Pull up to remove the LED light source and heat sink module.

    • Component Description (power supply): A switching power supply is used to power the motherboard and LED. The module is 89mm long, 84mm wide, 35mm thick, and weighs 194g.

    • Component Description (LED): The LED uses COB packaging technology and has a 4-heat pipe single tower radiator. The radiator fins are stamped and bent from aluminum sheets and are connected to the copper heat pipes using the Fin process. The base that fixes the LED and heat pipe is made of extruded aluminum.

    • The LED with cooling module is 150mm long, 84.5mm wide and 35mm thick. The module weight is 241g.

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    • Pull up to remove the main fan.

    • Pull up to remove the auxiliary fan.

    • Pull up to remove the mirror.

    • Component Description (main fan): A standard 9025 axial fan blows directly to the heat sink to provide heat dissipation for the LED. Weight: 85g. PBT injection molding.

    • Component Description (auxiliary fan): A standard 103312 turbofan blows air towards the LCD screen, polarizer and light cup module. Weight: 120g. PBT injection molding.

    • Component Description (mirror): A glass mirror used to reflect light and direct it towards the lens. 170mm long, 85mm wide, 1.7mm thick. Weight: 60g.

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    • Remove the 3*PH0 screws.

    • Pull up to remove the speaker.

    • Component Description (speaker): A speaker module encapsulated in an ABS injection molded shell. The dimensions are 96mm long, 45mm wide and 82mm thick. Weight 73g.

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    • Unscrew the 3*PH1 screws.

    • Push the lens out from the outside inward.

    • Component Description (lens): Composed of multiple glass lenses and an ABS plastic injection molded frame, it provides focusing function. The module is 101.8mm long, 86mm wide, 75mm thick, and weighs 375g.

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    • Carefully pull up on the Fermier len to release the latch.

    • Use a screwdriver to release the latch on the knob and push it out from the inside.

    • Remove the keystone knob.

    • Component Description (Fermier len): Installed between the LCD screen and the mirror to achieve keystone correction function. Made of PC material. An ABS injection-molded bracket serves as a buckle and is fixed to the knob. Dimensions are 155mm long, 83mm wide and 9mm thick (including ABS bracket). The lens itself is 1.7mm thick. Weight is 23g.

    • Component Description (knob): The knob has a diameter of 35mm and a height of 25mm. It is made of ABS plastic injection molding. Weight: 5g.

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    • Disassembly is complete. Arrange the parts according to their assembly relationship.

Liangbo Hong

Member since: 13/08/24

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