Introduction: KEA Reverse Engineering Project - Making of a Presentation Board
Our first assingment on reverse engineering class was creating of a board for a presentation on disassembling various devices. We focused on DVD Micro Theater. This instructable is about disassembling metioned device and creating a board for presentation with its parts on it.
Let's start!
Step 1: The Tools for Dissasembling the DVD Micro Theater
Screwdriver set
Soldering iron
Heat gun
Step 2: Starting the Operation
1) Remove bottom plate
a) Remove 7 screws holding the bottom plate
b) Take off bottom plate
Step 3: Removing Main Board
a) Remove 5 screws holding the main board from the top
b) Remove 6 screws holding the main board from the back
c) Disconnecting 8 cables from the main board
d) Take out main board
e) Disconnect flat cable
f) Take out audio amplifier passive cooler from main board
Step 4: Removing LCD Board
a) Remove 6 screws holding LCD board
b) Remove 2 screws holding usb port’s plastic bracket
c) Remove usb port’s plastic bracket
d) Remove volume nob (using 2 screwdrivers)
e) Remove pause/play button
f) Take out LCD board
g) Disconnect 1 flat cable
Step 5: Taking Out Analog Receiver
a) Remove 1 screw from the back holding analog receiver
b) Take out analog receiver
c) Disconnect flat cable from analog receiver
Step 6: Taking Out Disc Reader
a) Remove 4 screws holding disc reader
b) Take out disc reader
c) Disconnect cable from disc reader
d) Take off disc reader’s bracket
e) Remove 4 screws (4 gaskets from other side)
Step 7: IR Sensor
a) Remove 2 screws holding IR sensor
b) Take out IR sensor
Step 8: Removing of Control Button, USB Port With Connector, Plastic USB Port Holder and Front Panel Buttons
Step 9: Removing Audio Output
a) Remove 1 screw
b) Take out audio output
Step 10: Taking Apart Disc Reader’s Cover Opening Mechanism
a) Remove the spring from disc reader’s cover’s opening mechanism
b) Take off the lid
c) Warm up glue to remove resistance gear for disc reader’s cover
d) Remove lock of disc reader cover
Step 11: Removing Interface Panel, Interface Panel Frame and a Flat Cable
Step 12: Creating of Presentation Board
Out of
Plywood 12mm thickness cut out 3 arks 1200mm long, 88mm at the highest point and 23mm at lowest point
Take hdf board 6mm thickness and cut it out 1200mm long 385mm wide
Place 1 arc at the top of the board
Place 1 arc in the middle of the board
Place 1 arc in the bottom of the board
Screw 3 bolts in the left side of the board (1 in each ark)
Screw 3 bolts in the middle of the board (1 in each ark)
Screw 3 bolts in the right side of the board (1 in each ark)
Cover the board with grey vinyl sticker
Cut out wooden profiles to stick to parts as support for standing on the board
Wrap wooden profiles in grey vinyl and glue it to the parts needed
Plan the placement of the parts
Glue all the parts
Drill the holes in the board for the screws
Cut out numbers and letters in black vinyl sticker
Mark every part with a number
Smaller inner parts and connections with a letter
Generate and print QR codes
Cut out the name of the project on black vinyl sticker
Stick QR codes and project name on the board
Step 13: Part List, Part Weight, Fun Facts / Reusable Parts
Main board
· MT1389FE chip (MediaTek)
· K4S641632K chip (Samsung)
· Custom chip V1.23
· BA5954FP BLT Driver For CD-ROM (ROHM)
· PT2314 4-channel input audio processor IC (Princeton Technology)
· TDA8932BT Class-D audio amplifer
Connection ports
· ps/2 port (s-video in jack for s-video cable) Analog video connector for signaling analog video
· digital audio out (coaxial)
· composite video out (composite video - analog video transmission (without audio)
· line out port (used for connecting audio devices)
· scart cable output
· speaker input
· power input
Controlling a stepper motor with an Arduino
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